Projector guide 2017

Projector guide 2017

Projector

and Presentation

Equip ment guide 2017

Projector

guide 2017

Audio Visual Guides

02 03

Sony projectors NEC projectors

PROJECTOR AND

PRESENTATION EQUIPMENT gUIDE

Copyright © 2002, 2004,

2005, 2006, 2008, 2011, 2014,

2015. 2016, 2017

MArK A. AdAMs lindA s. AdAMs

All RIghTS RESERvED.

this edition published in great Britain 2017 original isBn:

978-1-906418-04-5 permission is granted for this publication to be given away to colleagues and business associates, provided that this publication is not amended in any form whatsoever. this publication is not to be sold under any circumstances.

disclaimer: the purpose of this guide is to give a general overview and acts as a guideline only. information, to the best of our knowledge, is correct at the time of writing. however, changes do occur with some models being discontinued whilst newer models and features come onto the market. We accept no liability, therefore, as to the accuracy of completeness of the information provided here. E. & o.E.

no claims arising from this guide can be accepted. it is a guideline only.

Projector and Presentation

Equipment guide

projectors continue to evolve with improved or new functions and features. For example, interactive projectors eliminate the need to have an interactive whiteboard, thus utilising dry-erase or semi-matt boards, improved built-in loudspeakers may remove the need to have separate loudspeakers, depending on the size of the room.

Advances in lamp technology gave you lEd laser hybrid lamps, and now we have laser light source, both of which allow you to project images up to 20,000 hours for the life of the projector, without the need to purchase replacement lamps. pico projectors that sit in the palm of your hand, powered by an lEd light source, give you a portable option, and coupled with a portable whiteboard system such as an eBeam Edge+ and your laptop, give you a complete interactive solution, all of which fits into your flight hand luggage.

.

the aim of this guide is to give you an overview of projectors and presentation equipment, keeping technology simple with solution ideas and hopefully help you make the right choice for your requirements.

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Projectors

Projectors

Multimedia and video projectors

the majority of projectors on the market are designed for both computer and video use and are called

‘multimedia’.they are sometimes called ‘dlp’ and ‘lCd’ projectors because of the technologies used to create the image.

Hitachi installation projector for large conference and training rooms the projector takes the image that appears on your computer monitor and then projects it onto a large screen. this enables everyone in the room to see what is happening on the computer. this is ideal when training people to use software packages such as Microsoft Word or customer computer systems within your organisation. if the computer is connected to the internet then your website and other websites can be displayed.

Hitachi LED/Phosphor projectors

Overview of projectors and presentation equipment

This projector and presentation equipment guide is mainly concerned with the latest in computer and video projectors including interactive, 3D,

LED, laser and DICOM simulated projectors.

Projector mounting options and projector security is discussed, as well as what to project onto, whether it be a projection screen, an interactive whiteboard or even a wall using an interactive projector.

As you upgrade your computer or notebook you may find you opt for a widescreen notebook and so the subject of widescreen projectors

(WXgA) and how XgA projectors cope with widescreen notebooks is covered, giving your a list of resolutions so you can best match your computer resolution to that of your projector and projection screen or whiteboard.

We also look at alternatives to projectors, i.e. lCd monitors and cover presentation equipment such as tablets, document cameras, and video conferencing. this guide explains projectors and presentation equipment issues in general and does not mention specific projectors, as the projectors available change on almost a weekly basis.

Video sources can also be connected into the projectors to display television, satellite and dVd’s. this is obviously ideal for home cinema as well as for business, where instead of displaying films on a 42” television screen, for example, you can easily have a projector screen over 100” diagonal.

Most dedicated games systems, such as the ps4, X-Box and gamecube, are designed for use with televisions. these can be projected through the video inputs on the projector. pC games are played using a computer, which connects to the computer inputs on the projector instead.

Most projectors have video and computer inputs. For example, a notebook computer and a dVd player can be connected at the same time. this allows you to instantly switch between the two. in a meeting you could display a powerpoint presentation on your pC, switch to the dVd to display a promotional video, and then switch back to your pC to display your corporate website. to switch between the two, you press a button on the remote control. it’s as simple as changing channels on a television set.

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Projectors some projectors have two or more computer inputs that allow switching between different computers. others have more than one video input.

Make sure you ask for a product brochure, either a paper or .pdF one, so that you can see how many inputs are included, and the resolution of the projector, so you can match with your computer, e.g. 4:3, 16:9, 16:10, Full hd, Ultra hd (Uhd) 4K, etc. switcher units can be used so that projectors with one video input can be connected to more than one device at a time. Connect two dVd players to the switcher box, and then use the switcher’s remote control to switch seamlessly between any inputs. this saves having to unplug one video device to use another one. When presenting, this means that there is no disruption to the flow of the presentation and looks more professional. switcher units are purchased separately from projectors, usually at local high street electronics shops.

When using a laptop you do not need a switcher unit (splitter box). you simply press the Function key with the lCd key (normally F8 or F5) on your laptop and this allows you to see the projected image both on the projector screen or interactive whiteboard and your laptop.

the contrast ratio of projectors also affects video image quality. the contrast ratio is the ratio between white and black when projected onto a screen. A 250:1 contrast ratio used to be typical for projectors, however, contrast has greatly improved in recent years. the higher the number, the better the projector is at projecting black. this affects the quality of projected video especially for home cinema use when displaying movies.

For general computer use, a high contrast ratio is not necessary.

Vivitek Qumi Q6 portable, wireless, LED projectors with WiFi connectivity, you can preload content to 2.5Gb of in-built memory

Optoma short-throw projector achieves a 100” image from just over 1 metre away

BenQ ultra-short-throw projector for classrooms with optional PointWrite touch pen for interactivity

Vivitek Qumi Q7 Plus LED projector has slim profile, 1.4kg weight, ideal for the business traveller. LED light source needs no replacement bulbs

InFocus IN1110 series, compact, lightweight 4GB internal memory, for presenting directly from a USB drive, ideal for business travel

Hitachi interactive projector for boardroom or classroom

NEC PX-Series large venue installation projectors with laser light source with no maintenance and no lamp replacement, ideal for museums, staging, public venues, higher education and corporate installations.

eBeam Edge+ USB or eBeam

Edge+ Wireless turns a dry-erase whiteboard into an interactive space

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Projectors

With hundreds of projector models on the market it can be confusing as to which ones to choose...

When choosing a projector there are several things to bear in mind, such as, do you need it to be lightweight and portable, short throw for desktop or ultra short throw wall mounted over a whiteboard or large venue ceiling mounted...

next, you need to look at the resolution and the number of pixels and this is where you should check the resolution of your computer or laptop to ensure compatibility. how bright do you need your projector to be? some models have ambient light sensors that adjust to light changes in the room. the number of inputs for connectivity need to be considered as, for example, in a training or seminar setting, there may be a number of presenters wishing to connect their laptop to the same projector, and having multiple inputs solves this problem. you may wish to consider the lamp life of a projector, which used to be around

2,000 hours, now there are projectors offering 4,000+ hours as standard, whilst lEd, laser-hybrid and laser light source projectors need no replacement lamps, offering around 20,000 hours of projector life.

in an education or training environment you may want your projector to be

3d-ready for projecting 3d material, or have interactivity with an interactive projector or, an ultra short throw projector with optional interactive pens.

Consider too the technology, dlp, lCd or lCos. you may need diCoM simulation for medical training that can display greyscale images. or perhaps exceptional image quality for projecting photographic work. high-end projectors may have advanced features such edge-blending where you project images from two or more projectors and blend the image edges, or projector mapping for images on 3d objects such as cars, ideal for in a car showroom or exhibition, or projecting on the outside of buildings. professional projectors may offer optional lenses, for example, long throw for when projecting in traditional churches, or wide angle where the audience is spread out horizontally. there are projector models designed for 24/7 usage ideal for airports, train and ferry terminals and in 24/7 supermarkets. it is always worth comparing makes and models and reading manufacturers brochures and specification sheets so that you can check and compare inputs, resolutions, brightness, contrast and other features.

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Projectors

Casio Green Slim projectors, ideal for upgrading existing installed projectors.

A 2x optical zoom means you can install without having to change the ceiling brackets

Casio Core Series of dust resistant, environmentally friendly laser and LED Hybrid light source projectors requiring no replacement lamps for the 20,000+ hour life of the projector

Projector brightness

Viewing a projector with a known brightness in your room is the best way to evaluate the required brightness

Projector resolutions

projectors have different brightness to suit a variety of applications and budgets. generally the brighter the projector the more expensive it is, other specifications being equal. projector brightness is measured in

Ansi lumens. An Ansi lumen is a standard unit of brightness as defined by the American national standards institute.

Every room is different and therefore it is very difficult to specify what projector brightness is needed. A brightness of 1,200 Ansi lumens should project a good image in a well-lit, average sized (7m x 7m) room.

Well-lit means that the lights are on but you may have to draw blinds / curtains to prevent outside light from disrupting the image. if the projector is too bright in a dark room, the audience can end up with eye strain. in Ansi lumens. Also viewing projectors at other organisations in your vicinity can give you a better idea of what is needed. some projector manufacturers will do onsite demonstrations at your premises, but these are usually performed for higher value projectors or where quantity is required. this is due to demonstrations being expensive to the supplier or manufacturer in wages, fuel and vehicle costs.

Another important consideration when choosing the brightness will be the size of the projector screen. A screen up to

175cm x 175cm, which is an average screen size, will be fine with the above brightness guidelines for the home cinema, classrooms and on the road situations. in school halls and large conference rooms a 2,000 Ansi lumen projector will display onto a screen twice as large. in general, the bigger the image the projector is to display, the brighter the projector needs to be.

A projector has a native resolution of 1024x768 pixels is known as an

XgA projector and gives a 4:3 aspect ratio (screen shape), being 4 parts horizontal and 3 parts vertical.

Many desktop lCd monitors, computers and laptops are widescreen with 1280x768 pixels with a 16:9 aspect ratio, or 1280x800 pixels with 16:10 aspect ratio, both or which are WXgA resolution (Wide

XgA).

Most things are now true hd

1920x1080 resolution with 16:9 aspect ratio so if budget allows go for a true hd projector.

Ultra hd (Uhd) projectors, also known as 4K, have 4 times the resolution of people who travel around to make presentations at different sites, in conference and training rooms to a dozen people, need a minimum of

Keystone correction

a true hd projector. Most projector manufacturers have 4K projectors in their range.

1,200 Ansi lumens. this is because you never know what conditions you will be presenting in. if you give presentations in larger venues such as halls or function rooms, then go for

Keystone correction is used for adjusting your projector image when your projector is placed off-centre, in

2,000 Ansi lumens or above. school and college classrooms often have large windows that can be a problem in the daytime, especially other words, it squares up the sides and corners of your image. you may find your projector model may offer horizontal if the sun is shining through the windows. For a room with the lights on and the blinds drawn, 1,200 Ansi lumens should be fine. if there are no blinds then you will need a brighter keystone correction or both horizontal and vertical keystone correction. projector.

Most projectors have an Eco mode, which when selected, dims the brightness and also saves on lamp some projector models allow you to make keystone adjustments when you project into a corner or uneven and life. restricted space.

Epson ultra short throw projector

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Projectors

Projector resolutions

Computer screen images are made up of pixels (dots)

Pixels Resolution name Aspect ratio Used by

800x600

1024x768

1280x720

1280x800

1280x1024

1366x768

1440x900

1400x1050

1680x1050

1600x1200

1920x1080

1920x1200

2048x1526

2048x1152 sVgA

XgA

WXgA

WXgA sXgA

WXgA

WXgA+ sXgA+

WsXgA+

UXgA

Full hd

WUXgA

QXgA

QWXgA non-widescreen 4:3 non-widescreen 4:3

Widescreen 16:9

Widescreen 16:10 non-widescreen 5:4

Widescreen 16:9

Widescreen 16:10 non-widescreen 4:3

Widescreen 16:10 non-widescreen 4:3

Widescreen 16:9

Widescreen 16:10 non-widescreen 4:3

Widescreen 16:9

Used on some older computers

Used by most computers with 15” lCd monitors and most non-widescreen notebooks hd ready video

Used by many 15.4” widescreen notebooks.

Used by some medium format lCd monitors, e.g. 19” monitors hd, used by some desktops which connecting to display screens

Common for widescreen monitors

Commonly used on 14” or 15” laptops

Commonly used on widescreen 20”, 21” and popular 22” lCd monitors

Used by many computers with lCd monitors above 19” true hd (high definition)

A wide version of UXgA and can be used for viewing hd tV content

Quad XgA, four times the pixels of XgA

A wide version of QXgA

3840x2160

4096x2400

Uhd 4K

Uhd 4K

Widescreen 16:9

Widescreen 16:9

Ultra hd, also known as 4K, normally in lCd monitors

Ultra hd, also known as 4K, normally in projectors

XgA (Extended graphics Array); WXgA (Wide Extended graphics Array); sXgA (super Extended graphics Array); sXgA+ (super Extended graphics Array plus) WsXgA (Wide super Extended graphics Array); UXgA (Ultra Extended graphics Array); WUXgA (Wide Ultra Extended graphics Array). QXgA (Quad Extended graphics Array); QWXgA (Quad Wide Extended graphics Array); Ultra hd also known as 4K.

You can find out which resolution your computer is using on Windows based machines by opening the

Windows Control Panel

(Settings) and searching for

Display, Advanced display settings (Windows 10). Do this for all the computers you may be using with your

LCD monitor or projector.

ViewSync wireless presentation gateway wirelessly streams HD content from laptop and mobile devices to projectors and TVs

ViewSonic PJD6350 XGA projector it was only a few years ago that sVgA projectors and XgA projectors were considered ‘the norm’. then widescreen (WXgA) computers, laptops, lCd monitors and projectors became popular.

Most projectors have ‘compression’, for example, an sVgA projector with the native resolution of 800x600 pixels will usually be able to display the

XgA resolution of 1024x768 pixels. the 800-line projector will do this by missing out 224 lines of the 1024 signal to display it. this leads to a noticeably poorer image. this is especially bad when text or spreadsheets are displayed on screen. text becomes very hard to read and spreadsheet grid lines, which being very fine, tend to disappear altogether. there are very few sVgA projectors on the market, costing from around

£230+VAt in the UK, with XgA projectors in 4:3 shape from around

£270+VAt upwards. if you have a widescreen computer and want to display widescreen computer images, then choose a widescreen projector. As interactive whiteboards are normally 16:10 aspect ratio then a projector with 1280x800 pixels (WXgA) and 16:10 aspect ratio will do the job. prices start from around £300+VAt in the UK.

As videos are often in widescreen

16:9 true hd 1920x1080 pixels, then a true hd projector may be your best choice, with prices starting from around £400+VAt upwards to £29,000 for high-end large venue installation models with advanced features. When displaying spreadsheets, figures will appear clearer when using a true hd projector rather than one with a lower resolution.

ViewSonic PJD6552Lws networkable short-throw WXGA projector

WUgXA resolution of 1920x1200 can be found in smaller meeting room to large venue installation projectors including models with laser light source requiring no replacement bulbs.

Ultra hd 4K projectors with 16:9 aspect ratio and 4096x2400 pixels, ard ideal for clear images, with many manufacturers such as Canon, nEC panasonic and sony having 4K models in their range. panasonic have an Ultra hd+ projector with 5120x3200 pixels, for 24/7 usage with laser light source which means no replacement bulbs, and including diCoM simulation for medical training, which allows X-rays to be viewed in greyscale.

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Projectors

Projector throw distances and lenses

Epson LCD interactive projector is ultra short throw to reduce shadowing.

It projects onto a dry-erase whiteboard, semi-matt projection board or plain wall, and using its interactive pen, this eliminates the need to have an interactive whiteboard.

Positioning your projector

in a dark room, if you put a torch near to a wall, it will project a small circle of light. When you move the torch away from the wall, the circle of light gets bigger.

this is the same with projectors. if you want to project onto a screen 1m x 1m, then move the projector away from the screen until the image fills the screen. however, projectors are a little more sophisticated than this as they have a zoom lens that allow a minimum and maximum screen size from a set distance.

having a projector ceiling mounted as far away from the screen as possible has the advantage that the audience sitting forward of the projector don’t see it and therefore you have a neater room. the closer the projector is to the screen, the less distance the light has to travel and therefore the image will be slightly brighter. position the projector somewhere in the middle so that you have maximum adjustment. in some cases you will need to project onto a screen from say 10 metres away because there are obstacles on or in the ceiling, for example a fire sprinkler system. the further the projector is away from the screen, the bigger the image is. you can make this image smaller to fit the screen using a long throw lens. not all projectors have the option of long throw lenses and these lenses can cost as much again as the projector, so mounting in a position to use the standard lens may be a better option.

A long-throw lens is used to reduce the image size to fit a screen when the projector is mounted a long way away.

A semi long-throw lens works the same but for shorter distances.

A short-throw lens works in the opposite way to a long-throw lens. A short-throw lens can be used when a projector is mounted very close to a screen to display a large image. you’ll find these optional lenses are usually available with high-end installation projectors.

NEC short fixed lens

NEC long zoom lens projectors usually come with a standard lens fitted that will be fine for most applications. on the back of the projector brochure, there is normally a chart that shows the projected image size at a range of distances from the screen or whiteboard. you can use this to see where a particular projector needs situating for the size of screen you are using it with. the brochure will give the projector’s throw distance, for example, 1.3 -

2.2:1 this means you can position your projector between 1.3 metres and

2.2 metres away from the screen or whiteboard to achieve a 1 metre wide image.

Ultra short throw projectors, with a typical throw distance of 0.3:1, which mount above an interactive whiteboard, reduce the glare of projector light. Wall brackets may be adjustable so you can place the projector in the optimum position. there are whiteboard systems available that include a short throw or ultra short throw projector on a frame. short throw projectors are designed specifically for short-throw distances, so they can be used in retail cubicles and on exhibition stands.

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Projectors

BenQ professional laser projectors

Projector technology

There are three different technologies used in projectors

- LCD, DLP and LCoS.

LCD - Liquid Crystal Display

light from the projector lamp is split into red, green and blue and then channelled through three panels made up of liquid crystal dots or pixels.

Electric currents are used to ‘switch’ individual pixels off or on in each of the panels, thereby letting the different coloured light through to make up the image.

DLP (Digital Light Processing)

dlp technology is used on some of the smallest, lightest projectors currently available. thousands of tiny mirrors, each of which represents one pixel, are used to reflect light in order to produce a digital image. dlp projectors have a colour wheel through which light projects, to give sharp, clear, rich colours. some models use

3-chip dlp which provides stunning images either still or in moving videos.

historically, it tended to be a rule of thumb, that if you were using a projector for business use, displaying spreadsheets etc., then an lCd projector would be better, whilst dlp was recommended for projecting videos, especially for home cinema use. however, both technologies have improved dramatically over the years.

Manufacturers either offer dlp and lCd models in their range, or simply use just one of these technologies. projector models cover a variety of applications from portable options, short throw, ultra-short throw, wideangle, visualisation, design and photographic projectors to large venue installation projectors. some models have diCoM simulation Mode for reviewing and reporting of medical images (not diagnosis), ideal for medical training. diCoM is digital imaging and

Communications in Medicine and is a standard for viewing, saving and distributing medical images.

LCoS (Liquid Crystal on Silicon)

lCos technology is available from a few manufacturers, for example, Canon. lCd uses liquid crystals on glass panels and light passes through the lCd panels to the lens. dlp uses tiny tilting mirrors to pass light. lCos uses both these ideas, in that it is a reflective technology that uses liquid crystals instead of tiny mirrors. lCos projectors typically use three lCos panels, one for red, blue and green.

Canon XEEd projectors use lCos technology. the XEEd 4K501st native

4K (4096x2400 pixels) installation projector, for example, uses Canon’s

Aisys (Aspectual illumination system) optical system and 3x 4K lCos panels, for smooth, clear images.

Aisys technology enhances colour reproduction, maximises brightness and enhances contrast. the Canon XEEd 4K501st uses a traditional lamp with Canon’s 3 year lamp warranty meaning that Canon would replace lamps up to 3 times if they failed or completely expired free of charge.

Manufacturers have introduced projectors using laser light source into their range and these need no replacement lamps, almost zero maintenance, with a projector life of around 20,000 hours.

Canon XEED 4K501ST for desktop or ceiling mounting

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Projectors

Projector lamps

Before purchasing a replacement projector lamp

(bulb) it is advisable to check the price as often it is more cost effective to buy a new projector, which start at around

£250+VAT, where as projector lamps can cost on average

£300+VAT.

new projectors are supplied with a new lamp fitted, which for the average projector lasts between

2,000 and 6,000 hours, depending on manufacturer and model. Eco mode reduces the brightness and lengthens the lamp life which could be up to 10,000 hours usage. Again, the manufacturers’ brochure will give you information on lamp life. the first thing to look at, is whether your projector is still projecting an image but the brightness of the image is poor. this means that the projector is working oK but you need a replacement lamp. if the projector won’t switch on, or the bulb went

‘pop’, then it is best to contact the projector manufacturer for a repair if still under warranty. this is because there may be a fault with the unit that is causing the bulb to ‘pop’ and putting in another light bulb could be an expensive mistake. if the projector is faulty and out of warranty, then look for a replacement projector instead.

projector lamps are classed as

‘consumables’ and are not covered under the main projector warranty, often the lamp warranty is 3 months. however, for education projectors, some manufacturers offer 3 year lamp warranty and 3 year de/re-install for the projector.

When considering replacing your projector lamp, do take into account the age of your projector and how much warranty is left. it may not be worth spending this kind of money on a replacement bulb for an old projector. you can currently get a

1024x768 pixel (XgA resolution), high brightness projector for under

£350+VAt. there are also widescreen projectors for use with widescreen notebooks and whiteboards. having said that, if the projector is mounted in a ceiling bracket, do check whether or not the bracket is a universal one, i.e. one that fits any projector, or whether the bracket is specific to the model of your projector. the cost of installing a new projector may be prohibitive if you don’t have a universal bracket.

Keep the air filters of your projector clean as blocked filters make the bulb overheat, possibly causing earlier bulb failure. there should always be good airflow around the projector. dlp (digital light processing) projectors have a filter free projection design.

With no filter to clean or replace, this can save money in maintenance costs. dlp projectors, therefore have a lower total cost of ownership (toC).

Always switch off the projector using the remote control and not by disconnecting the power. the projector will invariably go into a cool down mode where the image is turned off and the fan accelerates to cool the lamp in a controlled manner. the temperature of an operating lamp is many 1,000’s of degrees, so if you disconnect the power to the projector, prior to the above process, the glass in the lamp will cool unevenly and will result in stress fracture, causing early lamp failure. We are led to believe that you can shorten your lamp life by up to 50% simply by disconnecting the power instead of switching off the projector by remote control and allowing the natural cooling process to take place. projectors which have quick start up and shut down are great, for the last thing you want to do when you’ve finished a presentation, is to wait around whilst the projector lamp cools down. these models allow you to simply switch off and go. there are alternatives to manufacturers’ own lamps on the market, such as go lAMps (genuine original), which are normally less expensive than the originals. however, do check your projector warranty as you may only be allowed to use the manufacturers’ own replacement lamps, otherwise negating the warranty. projectors that use lEd (light Emitting diode) need no replacement lamps. pico lEd pocket sized projectors, for example, from inFocus, nEC, panasonic and Vivitek, can last on average up to 20,000 hours and as these continually improve it is not uncommon to see these with pC inputs, sd slot for pC-less presentations, UsB display and integrated speakers, making these ideal for travellers.

Laser projectors

in 2010, Casio introduced a hybrid laser-lEd light source in their green slim series projectors. since then manufacturers have produced various combinations and we now have laser-lEd, laser-phosphor and laser. the cost of producing a true laser light source projector is higher than producing a hybrid.

laser light source outlasts traditional lamp projectors giving up to 20,000 hours of projector life, with no replacement bulbs. this gives you approximately 7 years life if used 8 hours a day. running costs are also less than for traditional mercury lamp projectors. this is good news for presenters speaking in large venue auditoriums and university lecture theatres, as they do not need to worry about lamps blowing in the middle of presentations, and there is a cost saving with not having to employ a maintenance engineer to change lamps nor clean filters. laser projectors are ideal for higher education, government and corporate applications, museums, houses of worship, retail and entertainment venues where long life and low maintenance is paramount.

NEC laser projectors

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Projectors

3D Ready and Full 3D projectors

You will probably have experienced 3D either in cinemas, theme parks, museums or in visitor attractions, or when playing

3D games.

in the business sector architects, engineers and designers can create and develop their ideas, whilst in bars and pubs, 3d sports can be shown.

Unicol

3D twin stacking projector mount

When we look at objects around us, our left and right eyes see two slightly different views. As we fix on a specific object, both eyes focus on it. then our brain combines the two offset views into one image (referred to as convergence) in order to process depth information.

Active 3D

Active 3d projectors use active

3d glasses (battery powered) to synchronise images on the projector screen to filter the correct view to each eye and your brain then combines the two images to give you a 3d effect.

3d ‘active’ glasses cost in the region of £50-£85+VAt a pair, so a typical classroom needing 30 pairs will cost between £1,500-£2,500+VAt.

For an Active 3d system you would need a 3d ready or Full 3d projector,

3d active glasses compatible with dlp link™ 3d technology, a 3d

Blu-ray player or 3d source device and compatible 3d content such as 3d movies, 3d games or 3d educational software. you may need a quad buffered graphics card for your computer, although some models have

3d processing built-in.

Passive 3D

passive 3d uses polarised light to separate the left and right eye views to each eye. passive 3d glasses, like you see in cinemas, do not need batteries, and cost around £1 a pair. optoma, for example, offer a passive

3d solution, comprising two optoma

Full 3d projectors, low-cost passive

3d glasses and 2x flying frame with polarising filters. you would also need 3d compatible source device and content and a special ‘silver’

3d projection screen designed for polarised light.

Unicol manufacturer a 3d twin stacking projector mount.

Optoma Full 3D projector with active 3D glasses

3D Ready projectors

A 3d ready projector typically costs no more than a 2d (2-dimensional) projector. 3d ready projectors with dlp technology, function normally as a regular 2d projector, but when you play 3d content, it can switch from 2d to 3d and back again.

Full 3D projectors

Full 3d projectors, such as those manufactured by optoma, can display true 3d content from almost any 3d source, such as 3d Blu-ray players, 3d broadcasting and the latest generation games consoles. these are ideal for watching 3d movies and sport and for playing 3d games.

Do 3D lessons help learning?

A government funded study on the effect of use of 3d in the classroom produced remarkable results. the study, done in rock island, illinois,

UsA, showed that students’ pre-test vs. post test scores improved up to 35% after seeing a lesson in 3d compared to the mere 9.7% increase experienced by the control group who did not view the lesson in 3d.

students are used to interactivity and people of all ages are subjected to 3d viewing experiences and as more 3d software content becomes available, you’ll probably see more around.

Stacking

some high-end installation projectors have stacking facility so you can stack, for example, up to four projectors

(depending on manufacturer and model) so that their combined brightness can be as high as, for example, 40,000 Ansi lumens. the stacking facility allows the individual projector images to create a perfect overlay.

Edge blending

Edge-blending function is available on some installation projectors. this provides an easy way to create larger and wider pictures, especially useful in auditorium applications, art galleries, museums and at exhibitions. the image below, courtesy of nEC displays, shows how three images of tigers are projected from three projectors with the edges blended seamlessly. image warping is another feature found in some models of installation projectors, in which images can be digitally manipulated and also used to correct image distortion.

NEC edge blending fuctionality

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Projectors

Projection mapping with Panasonic projectors

Projection mapping

demand for projector mapping is growing. over the past three years, the number of projects has grown, driven by the need of a broad range of organisations to respond to the growing sophistication of techsaturated customers. projection mapping - once called video mapping - projects images onto any three dimensional surface of any shape or geometry. Usually, this is a building or other structure but equally could be someone dancing on a stage. in theory, any projector could be used for projection mapping, however, for the most captivating and enthralling results, high brightness, high contrast, high resolution and a high quality lens is required. projectors that support warping and edge blending enable even great freedom, for example, panasonic’s pt-dZ21K2 Evo 20,000 lumen projector with WUXgA resolution.

in a white paper produced by panasonic, the growth areas are light show attractions and media events.

75% of people surveyed, agreed that mapping was being used instead of traditional fireworks. hartmut Kulessa, European projector

Marketing Manager for panasonic, had this to say: “storytelling and advertising go hand-in-hand. projection mapping gives the creative team a big canvas for stunning visual effects and great possibilities for storyboarding. At the same time, brands can be integrated into the content and be part of the show. Big brands recognise that and funds for big outdoor projects are increasing.” projection mapping was used to ‘tell a story’ at the celebrations of 500 years of history at london’s hampton Court. success stories for projection mapping include the biennial lumiere Festival organised by durham

County Council, estimated to have brought 175,000 visitors to the City of durham, generating economic benefits of

£5.8 million in 2015 and delivering £4.3m of benefit on the previous occasion.

By the time london’s first ever lumiere festival closed in

January 2016, over one million people had experienced 30 light installations, giving a boost to the West End and

Kings Cross.

When h&M brought its flagship store to Amsterdam, the opening was enhanced by 3d projection mapping onto the historic building. A highlight of the show was a red ribbon, wrapped around the building, untangling and transforming the building into a colourful dollhouse where nothing was what it seems.

24 panasonic projectors were used at the german city of Karlsruhe’s 300th anniversary celebrations. i was in

Karlsruhe at the time and stood in the palace grounds to marvel at this spectacular story telling event with thousands of other tourists. Awesome!

12 13

Projectors

NEC demonstrates pixel-mapping using laser projection. At ISE exhibition, using NEC’s 12,000 ANSI lumen PH1202HL laser proector with HD resolution, a large-scale projection of famous skylines appeared on a glass screen

Inputs and connectors

VGA cable

A VgA (video graphics adapter/array) cable was the standard monitor cable for connecting your computer to a monitor or computer to a projector. still available on some projectors, most now have hdMi inputs.

VGA port and cable

HDMI port

hdMi (high definition multimedia interface) is an interface for transferring uncompressed digital data (audio and video). hdMi connects digital audio/ video sources such as Blu-ray players.

Most computer notebooks now have an hdMi (high definition multimedia interface) port and the majority of projectors have at least one hdMi input, with some projectors having both hdMi and dVi (digital video input) connectors.

HDMI cable high-end installation projectors will normally have multiple inputs so you can connect several devices such as a computer and dVd player.

DVI port

Many computers and notebooks have digital dVi (digital video input) monitor ports, which give a higher quality of picture output. some projectors have dVi ports to connect into the computer’s dVi ports. you will only need this if the computer you are using has a dVi port. the most common dVi connectors are dVi-i (integrated) which is digital and can also carry analogue rgB. dVi-d carries a digital signal.

DVI port - VGA 15-pin

USB

you can use a standard UsB cable for UsB display, or a UsB memory stick for pC-free presentations. Casio, for example, have projector models with UsB that allow Wi-Fi connectivity so that you can display wireless presentations from a laptop or a smart phone application where presentations can be made using a mobile device.

DisplayPort

displayport is a new generation AV interface developed by the display industry for a wide range of tablets, notebooks and desktop computers as well as monitors. it is administered by the Video Electronics standards

Association (VEsA). displayport products currently support up to 4K video, and the release of displayport

1.3 enables higher resolution including

5K monitors (5120x2880), using a single cable. displayport 1.4 features display stream Compression 1.2 transport, Forward Error Correction, enhanced display resolution (e.g.,

8Kp60hz hdr deep color) and expanded audio transport capabilities.

For more information please visit

www.vesa.org

DisplayPort connector

14 15

Projectors

RJ-45

projector with an rJ-45 network connection, sometimes referred to as a network projector, normally allow the image of a computer on the local area network (lAn) to be sent to the projector for you to project your presentation. they can usually be controlled from specified computers on the network. this includes turning the projector on and off or even setting a projector to turn itself on at a specified time. this is useful for instance, in an office or college, where people may work late and leave the projector on, wasting valuable lamp life. the extra cost of buying a network projector will repay itself time and again when using this feature.

CAT5/6

CAt5/6 cable is a standard computer networking cabling used in most offices. projectors with rJ-45 network port lets them to connect into a computer network. this allows computers on a network to send their screen image to the projector through the low-cost CAt5/6 cable that is already installed throughout the building. this means that you do not need to connect the projector and computer together using computers external monitor port as is normally the case.

OPS Slots

An ops (open pluggable specification) slot on a projector, enables you insert a slot-in pC. nEC slot-in pCs, for example, include intel® Atom or intel® Celeron processors with a choice of hard disk drive size for single projection/screen use, up to more demanding retail signage and multi-touch applications. slot-in pC’s are available for both

Windows and Android operating systems.

NEC

Slot-in

PC

When projecting digital signage presentations onto a projection screen, you may prefer to use an external media player, often referred to as a mini pC or digital signage player. nexcom, for example, have both external media players and slotin pC’s for use with projectors and display screens.

Mini pC’s UsB computer sticks are now on the market, and these slot into the UsB port of your projector or display screen for digital signage presentations.

Digital signage software

repeat signage digital signage software is ideal displaying your signage presentations either on a display screen, touch screen or projected through a projector onto a projection screen. you simply download repeat signage onto your computer or media player and easily create a presentation by inserting your content (pictures, videos, rss newsfeeds, clocks, etc). your content can be updated and scheduled over the local network, from a website, via Ftp or over the internet.

trial download www.repeatsoftware.com

A simple presentation created with

Repeat Signage, displaying, for example, properties for an estate agents window, using a rear projection screen and projector, or a sunlight readable display screen. Ideal retail, education, businesses

Picture left shows a coffee shop presentation displaying a spreadsheet and playlist of images.

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Projectors

Projector warranties

Projector installations

UK projector warranties are either swap-out (on-site), de/re-install (on-site), collect and repair/return or RTB

(Return to base).

A swap-out warranty means that a replacement projector is exchanged for a broken one, normally next working business day. if the projector is installed in a ceiling mount, someone at your premises will have to remove it first. Courier drivers are just sent along to exchange the projectors, so the old one needs to be ready for collection. rtB warranties involve you packaging the projector and sending it back to the manufacturer at your expense

(although many manufacturers now collect them free of charge). the projector is then repaired and sent back to you. some manufacturer’s offer a ‘Collect and return’ warranty.

Warranty upgrades can be purchased from some manufacturers that will turn a rtB warranty into a swap-out one. Unless you need a specific projector model with specific features, when comparing projectors (other specifications being similar) choose one with a 3 year swap-out warranty for peace of mind.

some manufacturers have a de-install and re-install warranty, which means they send someone out to take the projector down from the ceiling or wall, swap it for a working model and reinstall it onto the ceiling or wall. this tends to be for the education market. projector lamps, which are classed as consumables, are not included in the projector warranties and are normally guaranteed for 1 or 3 months. if you have a ‘mission critical’ projector, then you may want to buy a spare lamp with a projector or opt for a dual lamp projector. Alternatively, use a laser projector where no replacement lamps are needed and the projector has a life of around 20,000 hours.

Again, manufacturers may offer an extended lamp warranty, for example,

3 years limited lamp warranty in which they will replace a given number of lamps within the 3 year period. this tends to be for the education market.

A typical installation consists of:

1. A projector fitted into a ceiling mount kit or wall mounted

2. Electric connection from the projector to a power socket

3. Cabling from the projector to a single wall connection for video, computer and audio input. A wireless connection for computer use only is also an option.

4. A manual pull down or electric wall screen, or an interactive whiteboard

5. radio mouse and keyboard

6. Audio system this installation is typical for a conference room or classroom but is equally valid for a home cinema installation, perhaps without the need of the radio mouse and keyboard if a computer will not be used.

the audio on projectors has improved over recent years with 10W of audio being quite common, some models offering 20W, therefore for a small room, additional audio may not be necessary. projector lifts fitted into a suspended ceiling allow the projector to be kept in the ceiling void when not in use is an option for boardrooms and conference rooms. similarly, an electric projector screen can be rolled into its case when not in use, making for a neater room.

it is easier to start with the projector screen and work backwards, so the first thing you need to do is to find the following measurements of the room:

• Length of room

• Width of room

• Height of ceiling

Unicol projector ceiling mount kits

Loxit projector wall mounts

Loxit whiteboard lift

Unicol projector and whiteboard trolley

• Distance from the projector screen wall to the back of the last seat in the audience

• If suspended ceiling, then height of true ceiling and height of suspended ceiling

• Height of tables or other furniture in front of wall you are projecting onto. there are many competent installation companies who will often conduct a site survey, either by telephone or on-site if it’s a large or complicated installation, before carrying out the work.

16 17

Projectors

Projector equipment storage

JM Roving Rack

Unicol projector ceiling mount kits

JM Alpha Presenter teaching desk

The University of Hertfordshire invested £10 million in their brand new Law Court Building on the University’s de Havilland

Campus. The building offers law students the opportunity to study at one of the most innovative law schools in the

UK.

to corporate colours, has adequate ventilation for computer, video and audio equipment and acts as a piece of furniture and lectern as the table top can hold a visualiser, lCd monitor, computer, tablet or a mobile projector.

At the end of the day the room is locked and the mobile rack presenter can be locked away in a storeroom as well if needed.

TOP-TEC Trek-Tec multi-media trolley the picture above, by way of illustration, shows a ceiling mounted projector, which projectors onto a projection screen and a JM mobile, lockable, rack presenter which houses the teaching equipment. the rack presenter can be custom painted theft of equipment is a concern for almost every industry especially in public places. Anti-theft solutions include projector clamps, lockable trolleys, lockable tablet charge and sync trolleys and rack cabinets that can be wheeled away to a locked cabinet when not in use.

Chiayo portable PA system

Adding sound to projectors

projectors normally have built-in speakers, some more powerful than

Another option is a portable pA system others. Where you need additional sound in your room, there are ceiling and wall mountable loudspeakers available and slim-line models designed to be sited either side of an which can be used from room to room. ip rated (ingress protection) systems are ideal for school sports day or outdoor corporate events, ranging from pA systems for 15 people up to interactive whiteboard.

Active loudspeakers have a builtin amplifier while the passive loudspeakers require a separate amplifier. in-wall systems include a wall plate amplifier and loudspeakers.

5,000 crowds, and some that can be heard across a football pitch. ip ratings have two digits, the first number being protection from solid objects (fingers, dust protected, dustproof), the second number being protection from liquids to water jets.

Apart wall speakers

16 17

Projection screens

Projection screens

Screen International projection screens

Screen International projection screen

Projection screens include manual and electric pull down wall and ceiling screens, pull-up screens, mobile frame screens, picture frame screens and tripod screens...

Projection screens

Almost all projector manufacturers have a throw distance ratio calculator on their websites, which shows you how far from the wall the projector needs to be to achieve a specific image size. their projector brochures often give this information too. projection screen sizes are normally as given as width, height and diagonal inch and these measurements vary depending on the resolution (shape) of the projection screen. For example, an

100-inch diagonal screen in 4:3 ratio would be 203cm wide by 152cm high. the computer resolution used affects the maximum distance that people can be seated from the screen and still read text clearly. text and icons look smaller on an XgA screen (1024x768 pixels) and therefore you need to project a larger image. it is advisable to match the resolution of your projector with that of your projection screen for compatibility.

Selecting the screen shape

projector screens generally come in

4 main shapes, namely, 1:1 (square format), 4:3 (video format), 16:9

(widescreen), 16:10 (widescreen), plus custom sizes.

Square (1:1 aspect ratio)

these were originally designed for use with overhead projectors where the image projected is also square so that the image fills the entire screen. there is limited choice in 1:1 aspect ratio.

Sapphire slow retractable manual wall screen in 4:3 format

Rectangle (4:3 aspect ratio, video format)

televisions and computer monitors are not square but slightly rectangular in shape and have a 4:3 aspect ratio. this just means that the width of the screen being 4 parts long to 3 parts high. projectors that display this rectangular image onto a rectangular screen will allow the image to fill the entire area. if you project onto the square screen for comparison, then you will see an unused area at the top and bottom.

Sapphire tripod screen 1:1 square format

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Projection screens

Widescreen (16:9 aspect ratio)

this is the shape of a wide screen television. Many projectors, which are specifically designed for video use, can project an image of this shape.

Again if the image shape and screen match, then you can completely fill the screen with the image. 16:9 is sixteen parts the width of the screen and nine parts the height. Full hd projectors are

1920x1080 which is 16:9 aspect ratio.

Widescreen (16:10 aspect ratio)

there are many 16:10 aspect ratio computer notebooks and projectors and these screens match up with this format. Also available are 16:10 interactive whiteboards.

Selecting the screen quality

the projector screen material affects how light is reflected from the screen to the audience. the higher the ‘gain’ of a screen, the better the colour and crispness of images, however the viewing angle of the audience is reduced. screens are usually categorised into high and low gain.

low gain – inexpensive screens that reflect some of the projectors light back, but give a high viewing angle so that people in the audience to the side of the screen can see without difficulty. these are fine for general use and computer presentations.

high gain – More expensive but reflects more light to give a higher quality image. Colours are more vivid and the image is crisper. if you are showing video then this gives the best image, especially for home cinema use. the draw back with high gain screens is that the viewing angle is greatly reduced and the audience needs to be directly in front of the screen for best effect.

high contrast fabric, which is normally light grey in colour, is ideal for projecting video and dVds, as it gives a good colour contrast, especially on the colour black. A variety of other fabrics are available, although matt white is the most common. A high contrast ratio gives betters colours especially with videos.

rear projection fabrics are treated so that when the image is shone onto the rear of the projection screen fabric it can be seen clearly. As with front projection screens, there are also brand names of rear projection fabrics offering different qualities and applications such as narrow or wide rear projection viewing angles.

Sahara large venue electric screen 16:10

White pearl fabric is normally made from pVC in white at the front and silver on the back. sometimes, depending on manufacturer and screen models, can have obtained fireproof certification. there are other specialist screen fabrics such as ones with micro perforations which are normally used in small screens where loudspeakers are sited behind the projection screen. projection screens for 3d projection have special coatings making them suitable for use in passive 3d projection.

Keeping the screen fabric taut

some screen manufacturers offer tab tensioning screens. tab tensioning system has thin wires down each side of the screen that holds the screen surface taut which keeps it wrinklefree. this is particularly important when you have larger size screens.

Selecting the type of screen

now that you have calculated your minimum screen size and decided on the fabric type and whether you are going to buy a tripod, wall or other screen, you can start looking at available screens. there are hundreds of different screens on the market, but knowing the rough size and type will allow you to narrow the choice to a few screens. the size is an important factor, so that the audience can all see the image easily, as well as the fabric, and for larger screens - keeping the fabric taut.

Sahara Pro electric screen 16:9

Screen International Major Pro-C

Tensioned high-end professional motorised screen

Sapphire table-top projection screens

Another thing to consider is whether your screen will be permanently used in one room or whether you need a screen which can be transported from room to room. you may need two screens, one fixed and a portable one.

Desktop screens

desktop screens are a good choice for projecting to small groups of people, for example, an insurance agent visiting clients’ homes, projecting to two or three people can set up the screen on a coffee table. there is limited choice of these screens, which are portable and pull out to use.

18 19

Projection screens

Screen International ixed frame screen

Mobile screens - tripod

tripod screens are portable and can easily be set up. ideal for projecting square images as these were originally in 1:1 square aspect ratio, but now also come in other aspect ratios.

Mobile screens - pull-up

these pull-up mobile screens offer a neater screen for portable presentations than tripod screens. the screen case is usually put on the floor and then the screen is pulled up and out of it. this takes up less space than a tripod screen and looks neater. some screens have scissor action on the back to help keep the screen taut during use. Varying aspect ratios are available.

Mobile screens - frame

Mobile portable screens normally have legs, frame and screen fabric which are assembled together to make the mobile screen. Front projection, rear projection and front/rear projection screens are available. these screens are used for temporary installations, outdoor events and exhibitions as they can be moved venue to venue. these screens will usually fit into most car boots but it is important to check car boot measurements and screen sizes before purchase. the advantage is that if you buy a front projection screen, stand and legs, then find you need rear projection, you only have to buy the rear projection fabric which you can use with your existing frame and legs. obviously if you do this, you need to ensure you use the same manufacturer to ensure compatibility. heavy duty leg sets and stabilisers are also available and are often used with the larger, heavier screens.

Sapphire mobile frame screen

Wall and ceiling screens - manual

Manual pull down projection screens are ideal for mounting on a wall or ceiling and are ideally suited for constant use in one room. these are available in a variety of shapes, sizes and quality. heavy duty, tear proof, fire retardant screens are ideal for school classrooms, whilst lighter screens are better suited for environments where there is little risk of damage to the screen. screens can have black borders or be plain matt white and there are also choices of fabric types and case design and colour. A rule of thumb is that 1:1 square screens have no borders, whilst 4:3 and widescreen 16:9 or 16:10 normally have black borders. Wall brackets can be purchased that allow you to tilt wall screens. some screens have universal attachments at either end of the casing so that screens can be hung from the wall, ceiling or rail systems.

Sapphire pull-up mobile screen

20 21

Projection screens

Wall and ceiling screens - electric

Electric screens are available for almost every application including tab tensioned and tension locking, which hold the screen fabric taut to allow the screen to fold up into its wall or ceiling casing without creasing.

Very slim casing, where the screen retracts completely into the casing, is

ideal for boardroom presentations, especially when using an almost silent motorised screen. this looks impressive when, at the touch of a remote control button, the screen quietly descends from the ceiling and retracts just as quietly when the presentation ends. some electric screens are designed especially for recessed ceilings, whilst others can be installed during the “dirty phase” of construction work. large electric screens are ideal for auditoria, sales meetings and conference centres and normally start from 7 metres upwards. optional rF remote controls may be available, especially for large sizes.

Wall screens - picture frame

Framed projector screens have a white screen with a different colour frame that give the appearance of viewing the projected image in a picture frame. ideal for mounting on the wall for home cinema, boardrooms, reception waiting areas, museums and art galleries. you simply project the image onto the screen in the normal way, but as the screen has a frame around it, resembling a picture on the wall.

Screen International electric screens

Screen International picture frame screen

NEC laser projector displaying images on a glass board

Projection boards and glass boards

projecting onto a plain white board is an alternative to using a projection screen. Cleverwall semimatt boards are self-adhesive projection-only boards that are pre-fitted into an aluminum framed board. they allow projection of images, reducing the ‘hot spot’ from the projector light, but are not recommended as dry-wipe boards glass boards, made of toughened glass, are an option for rear projection surfaces.

20 21

Presentation equipment

Presentation equipment

Polycom video conferencing system

An overview of presentation equipment the following equipment may complement your presentations depending on your own industry and application. here we give a brief overview of the types of products that are available on the market. these include:

• Document cameras / visualisers

• Interactive whiteboards

• LCD monitors & touch screens

Document cameras

A document camera (also referred to as a visualiser or digital presenter) is a special video camera designed to display documents and 3-d objects onto projector or monitor. it is called a ‘document camera’ as you can place documents such as A4 printed handouts, papers, magazines or maps underneath them, so that they are displayed on screen. document cameras can also display small objects such as insects, flowers, coins, etc.

A document camera can either be connected to a projector and viewed on a projection screen or be connected direct to a display such as an lCd monitor or tV. When you connect your pC or laptop to the document camera, images can be saved for editing, emailing, importing into powerpoint presentations, etc.

Lumens ceiling camera

• Lecterns and teaching desks

• Radio mice and radio keyboards

• Touch screen tablets

Microscope attachments are also available with some document cameras so that you can display microscope slides on screen. document cameras are available as

• Video and audio conferencing

folding arm portable models, flatbed models or ceiling mounted.

AVer U70 USB visualiser

22 23

Presentation equipment

Interactive whiteboards

dry-erase whiteboards are still in use in many establishments. if you want to have interactive whiteboards without the cost of having to replace all your existing dry-erase boards, there are portable whiteboard solutions, such as eBeam, that attach to the board to turn the surface into an interactive board. you can then open up programmes and annotate using the interactive pen. these portable solutions are ideal for using room to room or for travellers as you even make a wall or door interactive. interactive whiteboards are just big touch screens, even though you tend to use special pens or your fingers and the manufacturer’s interactive whiteboard software. it’s the software that comes with them that makes them useful for class and meeting rooms. short throw and ultra short projectors are ideal for use with interactive whiteboards.

Whiteboard systems which integrate the interactive whiteboard and projector on a boom arm offer short throw or ultra short throw options, on either a fixed wall frame or height adjustable frame or there are trolleys designed to transport these systems.

Promethean ActivBoard Touch

LCD monitors and interactive touch screens

An alternative technology to using a projector and projection screen, or projector and interactive whiteboard is look at flat panel interactive touchscreens. there is a vast choice of flat panel interactive displays (touch screens) for a wide variety of applications, in addition to large format displays for digital signage applications and lCd monitors for desktop applications.

Sharp BigPad interactive display

22 23

Presentation equipment

Lecterns and teaching desks

JM presentation desks

Turning Leaf lecterns

Lecterns are designed so that the person making the presentation can stand behind them and put their notes on top. Sometimes a microphone is attached if presenting in a very large room.

lecterns, depending on design, can also have equipment hidden away inside them to keep the room neat and may have casters for easy placement within a room. A computer can easily be hidden in a cabinet lectern, which can then be controlled from anywhere in the room using a radio mouse and keyboard. if you install equipment in a lectern, then you still need power and data cables. one arrangement is to have power and cable access points in the floor wherever the lectern is likely to be positioned. some lectern designs allow a logo to be added. you can add a portable sound system to lecterns. instead of cutting a hole in the lectern for a microphone, a wireless base and gooseneck microphone could be used with a wireless receiver. some models, allow space for a portable pA system.

www.lecterns.co.uk

Turning Leaf wood, metal and acrylic lecterns

24 25

Presentation equipment

Radio mice and keyboards

E-learning has much to offer teachers and students and a wireless radio mouse and keyoard can be a valuable part of a teachers toolkit.

Whether using a projector, interactive whiteboard or a large format display, your presentation is not just about your slides, but how you communicate with your audience. the gyration Air Mouse gives you the freedom to move through meeting rooms and classrooms, gesturing and interacting directly with delegates or students, all the while keeping pixel-accurate wireless control of your computer. With its visual effects such as text highlighter, zoom and slide hide/reveal, the Air Mouse is an ideal companion to your projector, whiteboard or large format display (lFd).

Gyration Air Mouse GO Plus wireless mouse with Low profile keyboard or Compact keyboard

Tablets

you have only to look around education and business premises to see how many interactive tablets and smartphones are used by students, teachers and business people in their everyday lives.

Audio and video conferencing

LG 10-inch retail touchscreen tablets

Conference phones can be used for a conference call, for example, a small group of students learning a foreign language can speak to other students confidently, knowing they can be heard clearly.

Manufacturers such as revolabs, specialise in compact conference microphones for use in boardrooms.

Video conference systems range from point-to-point to multi-point systems, and normally comprise a camera, codec (to send the signal) and microphone.

AVer 10-site multipoint VC system

10-inch touchscreen tablets are also in use on retail shelves to engage customers with special offers and promotions. sMArt podium interactive pen display lets you interact with digital content and write over it, all while displaying that content on a large screen in the same room or remote location.

SMART Podium

Polycom conference phones

24 25

Repeat Signage digital signage software

Digital signage is about displaying still and moving images onto a display screen or video wall to engage with your audience...

1. Download Repeat Signage software onto your Windows computer

2. Easily create your presentations by inserting your logo, pictures, videos, text, clocks,

RSS newsfeeds and other media into the software to promote your activities

3. Connect your computer to a display screen to play your presentations and engage

with your audience

r epeat Signage: Howard Park School, UK Repeat Signage: Merryhill School, California Onion Lake Cree Nation, Saskatchewan

Repeat Signage

V4 digital signage software

for Windows repeat signage digital signage software helps you get your message across and promote your products or service. it is easy to use and you can create a presentation and have it playing in minutes. trial download you need a Windows based pC, a display screen and repeat signage.

Features include touch screen support, remote updating and scheduling of presentations, and it supports Windows 10, 8/8.1, 7, Vista and Xp. see our success stories Contact us

digital download

www.repeatsoftware.com

r epeat Signage: Caxton Publishers, SA Albemarle Music Centre Repeat Signage: Harrisburg International Airport

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