VZ27_57e für PDF-Export.cdr

VZ27_57e für PDF-Export.cdr
The professional WolfVision Visualizer technology:
Technical description:
A light projector (1) inside the unit projects a light field (7) the
same size as the pick-up area of the built-in camera via the
base mirror (5) and the top mirror (6) onto the working surface.
The image is recorded by the camera (2) using the same path.
The lenses of the light projector (1) and the camera (2) are
synchronized. Thus the size of the light field on the working
surface changes when the user changes the zoom range of the
This patented WolfVision scanning and illuminating system
offers a number of unique advantages as described in this
Easy positioning (with Synchronized Lightfield)
A lightfield, the size of the pick-up area
of the built-in camera is projected onto
the working surface. The illuminated
part of the working surface is always
identical to the pick-up area of the
camera. When zooming in and out, the
size of this lightfield changes
This allows very easy positioning of
objects. There is no need to look at a
monitor. Just place the object in the
illuminated portion of the working
The Synchronized Lightfield is a special
patent of WolfVision and can only be
found on WolfVision's Professional
24x zoom (12x optical and 2x digital)
24 time zoom
24 times smaller
Whole working surface
360 x 270mm (14.4" x 10.8")
Biggest enlargement:
15 x 11mm (0.6" x 0.5")
A large optical zoom range is one of the most important
features of a Visualizer. It is absolutely necessary that
objects in every size can be picked up in full
WolfVision's optical 12 times zoom offers the possibility
to pick up objects as large as an open book (360 x
270mm / 14.4" x 10.8") and as small as a stamp (30 x
22mm / 1.2" x 0.9") in full size to fill the screen.
For enlarging even smaller objects down to 15 x 11mm
(0.6" x 0.5") the VZ-27 and VZ-57 also offer a 2x digital
zoom. This allows for enlarging objects like a very
small coin.
Of course 2 times digital zoom means double the size
and half the resolution. Up to 2 times the quality of a
digital zoom is acceptable. More digital zoom would
show an ugly pixel structure. Therefore, WolfVision
invested very much in a large range optical zoom.
"Progressive Scan" with High Resolution
Until recently all Visualizers were equipped with PAL or
NTSC video cameras.
Modern data projectors provide the ability to display
higher resolution images using its "data" input instead of
its "video" input. This is where "Progressive scan"
cameras come in. They output a "data" signal with more
resolution than PAL/NTSC "video" could provide.
Especially the vertical resolution is no longer limited to
400 lines from top to bottom (PAL standard) or 350 lines
(NTSC standard).
WolfVision's Progressive Scan Visualizers can output the
image in either SVGA, XGA or SXGA mode (at 75 or 60Hz),
on RGBHV (D-Sub and BNC) and DVI outputs.
In addition the original Progressive Scan signal is also
output converted into PAL or NTSC video (switchable).
The VZ-57 is the HIGH END unit on the market. It has a
built-in 3-CCD camera with 800 horizontal- and vertical lines
resolution (1030 lines in image turn mode) and 100% lifelike
Live-Image (25 and 20 pictures per second)
This is an example of live motion: 1/2 second of a hand moving a piece on a board game:
25 pictures per second (like WolfVision's VZ-57): The motion can easily be followed (13 different pictures in 1/2 sec.)
7.5 pictures per second (like other manufacturer's units): Every picture is output a couple of times. (Only 4 different pictures in 1/2 sec.)
The motion is jerky and hard to follow
"Motion" used to be the weakness of Progressive Scan
cameras. Until recently they could only pick up 7.5 (or
less) pictures per second. This resulted in a disturbing
strobe effect on the screen, whenever something was
moved in the picture or when adjusting zoom or iris.
It is very important for a professional presentation that
motion can be shown in good quality and without any
image disturbance. WolfVision uses newly developed
Progressive Scan CCDs which can pick up 25 (VZ-57) and
20 (VZ-27) pictures per second. As a result, motion looks
almost as good as with PAL/NTSC video cameras. But the
resolution is much higher!
"Image turn" mode for higher resolution
Normal mode:
Camera pickup area:
Only 50% of the
pixels of the camera
are used to pick
up the letter.
Close up
of monitor:
Image turn mode:
Camera pickup area:
Nearly all pixels
of the camera
are used to pick
up the letter.
Close up
of monitor:
Picking up a complete vertical (portrait) letter
or A4 page has always been a critical issue for
a Visualizer, because the image is always
picked up in a horizontal (landscape) format.
As a result, only 50% of the camera pixels
could be used to pick up the vertical (portrait)
WolfVision's unique "Image Turn" mode
solves this problem. The user places the
document on the working surface horizontally
and zooms in on it completely. In doing so,
approximately 90% of the camera's effective
pixels are used to pick up the document.
WolfVision's state of the art electronics turn
the image at an angle of 90 degrees and
output it in a vertical format with 40% higher
resolution. The margins left and right are
blacked out.
In this mode the resolution of a complete
vertical (portrait) document is much better.
Even 8-point characters are readable now.
Another advantage of the image turn mode is
that very long vertical pages (like US legal
format) can be picked up completely.
Depth of focus (depth of field)
WolfVision uses professional telezoom lenses (without a
close up adaptor lens) for the professional Visualizer
series. Together with the perfect lighting, this results in a
superior depth of focus:
250mm (9.8") in wide position
with pickup area of 360 x 270mm (14.2" x 10.6")
70mm (2.8") in tele position (without macro / digit. zoom)
with pickup area of 42 x 32mm (1.6" x 1.3")
Depth of focus with big enlargements is a very difficult
task for a Visualizer. No other unit on the market comes
close to the extremely high depth of focus of WolfVision's
Professional Visualizers!
Due to the great depth of focus, there is no need for an autofocus, because it is usually not necessary to adjust the focus.
Shadow free illumination
As the camera and the light projector are situated side by side
within the unit and follow the same path, shadows are almost
completely eliminated.
During a presentation it is very often
necessary to write something on a
document on the working surface or
to point to a certain detail with a finger
or a pencil.
The professional WolfVision Visualizers
are perfectly suited for this, as there is
practically no shadow covering up
important details.
Illumination of hollow objects / No light adjustments
Due to the special light system of WolfVision's
professional Visualizers, every part of the
recorded picture is always perfectly illuminated.
Hollow objects or complex 3-D objects are
always completely illuminated - even on the inside.
As a result there is never a need for adjustment
of the light.
Reflection free area
Reflection free area
No adjustment of lights is necessary in order to avoid
disturbing reflections on glossy material (photos,
transparencies etc.)
Due to WolfVision's special illumination system the whole
working surface is a reflection free area.
High-end components
Resolution =
Camera lens
Camera chip (CCD)
It's a common misunderstanding that the number of pixels
of the camera's CCD says everything about the resolution
of a Visualizer (or any camera).
Because if a cheap lens or bad electronics would be used,
the resolution visible on the projection screen would be
much lower than the built-in CCD could provide.
Camera electronics
Visualizer electronics
Only a combination of high quality components as used
in all WolfVision Visualizers can produce a high-resolution
picture on your screen.
Especially WolfVision's professional telezoom camera
lenses are of superior quality and allow the CCD to really
"see" the pixels it is supposed to pick-up.
Check out the exceptional edge focus of these lenses!
Firmware updates via Internet
WolfVision's Visualizers are the only
units on the market that offer an
upgradeable firmware.
This allows for new features to be
added at no cost.
Downloading firmware updates from
the internet and up-loading them
onto the Visualizer is very easy.
Some examples of the new "software features"
which were made available after the first VZ-27s
and VZ-57s were shipped to customers:
- improved contrast and auto iris
- automatic power off function
- auto resolution feature
- improved USB support
- enhanced on-screen help menu
... more new features will be coming up!
USB output / 3-D scanning in just 2 seconds
The USB output of the VZ-27 and VZ-57 can be used to transfer still
pictures from a Visualizer to a computer. In this way the Visualizers can be
used as a 3-D scanner for a computer. No additional hardware is required
for this. It only takes 2 seconds until images are loaded onto the computer.
This is much faster than with any desktop scanner. In addition, the Visualizer
can also be controlled through the USB software. The software works under
Windows 98, ME, 2000 and XP and is fully Twain compatible. Updates can
be downloaded from WolfVision's internet homepage.
The USB-connection is perfect for transferring still pictures. Live images
can also be transferred onto a computer very easily using a standard
PAL/NTSC video digitalisation card (grabber card).
Computer input (loop-through)
just one
A computer can be connected to the RGBHV input (15-pin DSub-plug) of the Visualizer. With the Ext/Int switch a user can
switch between the Visualizer image and computer image to be
displayed to the audience.
Only one cable to the display unit (projector, monitor, video
conferencing system etc.) is required and no separate remote
control has to be used for switching between the two image
9 Picture memory
With WolfVision's Progressive Scan Visualizers a user has the opportunity to
store 9 images and recall them by just pressing one of the numerical keys on
the infrared remote control.
By pressing the "All" key, a split image with all 9 pictures of the memory can be
displayed, enabling easy selection.
The 9 pictures in the memory can also be downloaded to a PC via USB.
Split image of 9 picture memory
Motorized arm and top mirror (for scrolling)
With the push of one button, the
motorized arm can be raised or lowered
The top mirror is also motorized. This
allows for scrolling text in a document or
showing an object in detail by just
pressing the up/down keys on the infrared
remote control from anywhere in the
Quick recordings outside of the working surface
With WolfVision's professional Visualizers, recording outside the working
surface can be done very quickly and easily by just tilting the top mirror.
Recording is possible at any distance from the unit.
The zoom range outside of the working surface is
the same as with most professional video cameras.
This feature is very important for picking up objects
which are too large to be placed on the working
surface or which need to be shown from the side.
Very large built-in bottom light / Special surface for transparencies
Normal transparencies:
The Visualizer's working surface has a special crystalline white color.
This is perfect for true color reproduction of transparencies with the
Visualizer's top light.
Slides, x-rays and darker transparencies:
For these objects the professional Visualizers are equipped with a
very large built-in bottom-light. The size is the whole working surface:
380 x 280 mm / 15" x 11" (In Image Turn mode it is: 280 x 380 mm /
11" x 15").
In certain situations the bottom light may also be the better solution
for transparencies (when the room light is reflecting or when the
transparency is very dark or wavy.)
Laser center marker (VZ-57 only)
One of the main advantages of WolfVision's professional
Visualizers has always been the Synchronized Lightfield which
marks the pickup area of the built-in camera (see page 2).
However this function is not available when the bottom light or the
macro function of the Visualizer is used.
As a substitute, the VZ-57 is equipped with a laser pointer which
marks the center of the pick-up area. By means of a special
technique this laser pointer dot is NOT visible on the picture the
audience sees.
Text Enhancer / Negative / Negative-blue
The VZ-27 and VZ-57 offer many possibilities to improve the
readability of text.
By pressing the "Text Enhancer" button, the contrast of the picture
is improved dramatically. The colors are just a little bit darker than
with Text Enhancer
Sometimes dark text on a bright background may be easier to read
if you switch the Visualizer to "negative" or "negative/blue".
For special applications (like analysing x-rays) the image can also
be switched to black and white.
Optimized for video conferencing
WolfVision's camera electronics produce a very strong and stable
picture, which is very important when a Visualizer is used as a
document camera for videoconferencing systems. The even lighting,
smooth auto iris and perfect focus are very important features,
enabling video conferencing systems to digitize and transfer the picture
from a WolfVision Visualizer much faster than pictures from other
document cameras.
Furthermore there is no blinding stray light from a WolfVision Visualizer,
which could disturb the auto iris of the room camera.
Of course these features are equally important for live image
presentations with a data projector and for other Visualizer applications.
Other important features:
DVI-output (DVI is the new standard for 100% digital
image transfer. No image adjustments are necessary on a
projector or monitor with DVI input.)
Intelligent automatic lamp changer (Built-in spare lamp
is automatically activated if the first lamp fails. An onscreen warning message indicates if a bulb is faulty)
Infrared remote control
Image on/off switch (for all outputs, except Preview
output for control monitor)
Intelligent control panel (active functions are illuminated)
No disturbing stray light (important for projection) and no
blinding of the audience or the speaker
Constant sync signal on all outputs (no image distortion
when switching the image on and off)
Professional serial input (RS232) for external control
(including position setting and status report)
Halogen light (with constant light spectrum, for true color
3 user programmable presets (for zoom, focus, iris, light,
mirror position, camera settings etc.)
Preset keys can also be used for specific functions (like
black/white, negative, negative/blue, image on/off, iris etc.)
On-screen menu for setting up the unit according your
own requirements
On-screen help menu with Reset function
Pictures per second (as picked up by the
Horizontal resolution (Progressive Scan)
Vertical resolution (Progressive Scan)
Total Pixels of CCD
Effective Pixel (=pixels which are actually used
for the image information)
Color reproduction
Laser center marker
Output signals
Vertical image-frequency
Horizontal image-frequency
Signal format
White balance adjustment
Synchronized Lightfield
Text enhancer
On screen menu
Menu reset function
Lens / Zoom
Digital Zoom (additional to optical zoom)
Max. pick-up area on working surface
Max. pick-up area outside working surface
Min. pick-up area on working surface
Max object height on working surface
Depth of focus (Depth of field)
Shadow free illumination
Illumination of hollow objects
Disturbing stray light
Blinding of audience or speaker
Reflection free area
Upgradeable firmware
Light source
Automatic lamp changer
Reflection free area
Motorized top mirror
Motorized arm
User programmable presets
Special working surface for transparencies
Bottom light
Image on/off switch
Image memory
Show all function
Image turn mode
Alternative image display
Infrared remote control
Progressive Scan outputs
PAL/NTSC Video outputs (switchable)
Optional accessories
Made in
1/3" 1-CCD Progressive Scan
1/3" 3-CCD Progressive Scan
640 lines (820 lines in Image Turn mode)
640 lines (820 lines in Image Turn mode)
800 lines (1030 lines in Image Turn mode)
800 lines (1030 lines in Image Turn mode)
very good colors
100% lifelike colors
SXGA, XGA or SVGA (switchable); PAL or NTSC (switchable); USB
Progressive Scan: 75 Hz or 60 Hz (switchable), PAL: 50 Hz, NTSC: 60 Hz
Progressive Scan: 37.3 - 80 kHz, PAL/NTSC: 15.7 kHz
non-interlaced (Progressive Scan) and interlaced (PAL/NTSC video)
automatic and manual
automatic and manual
yes (in size of the pick-up area of the built-in camera - for easy positioning of objects)
yes (in color, improves the contrast and the readability of text)
yes (for operation functions, camera settings and on -screen help)
yes (user programmable menu setups also available)
two telezoom lenses (12 x optical zoom, incl. Macro) , f = 2.0
2 x digital zoom (total: 24 x zoom)
Normal mode: Length: 270 mm (10.8"), Width: 360 mm (14.4")
Image Turn mode: Length: 360 mm (14.4"), Width: 270 mm (10.8")
unlimited (works like a video camera)
15 x 11 mm (0.6" x 0.5") (The max. pickup area is 24 times higher because of 24 x zoom)
250mm (9.7")
70mm (2.75") on small pickup-area (42x33mm) / 250mm (9.7") on large pickup -area (360x270mm)
none at all
none at all
whole working surface
yes (updates downloadable from www.wolfvision.com)
included on CD-ROM (for Windows 98/ME/2000/XP, updates available at www.wolfvision.com)
standard halogen lamp (12V/100W) , 3200 Kelvin (constant light spectrum)
yes (with built-in spare lamp)
whole working surface
yes (for scrolling text with remote control)
yes (for moving up and down and macro zoom function)
3 (plus 8 fixed presets through RS232), Presets for specific functions also available
built-in, size: 380 x 280mm (15" x 11") = whole working surface, light source: 4 x CCFL
yes (with constant sync signal)
9 pictures (user can select if images should be deleted or not when the power is disconnected)
displays all 9 images in the memory at once
improves the resolution of vertical (Portrait) documents significantl y
Negative, Negative/Blue, Black/White
RGBHV (2x 15-pin D-Sub and 4x BNC plugs), DVI-I (digital and analogue), USB
S-Video (converted Progressive Scan, 4-pin plug),
Composite Video (converted Progressive Scan, BNC-plug)
RGBHV (15-pin D-Sub plug) for PCs (the computer signal can be looped through the Visualizer)
Serial input (RS232) for controlling and firmware updates
17 kg (36 lbs)
Carry case, Shipping case (with wheels), Extension cable for built -in lightbox
Austria (European Community)
Printed in Austria, November 2001
Technical data:
Specifications and availability subject to change !
Your WolfVision dealer:
More information on our Internet homepage:
WolfVision GmbH - Vlbg. Wirtschaftspark, A-6840 Götzis / AUSTRIA, Tel. ++43/(0)5523/52250, Fax ++43/(0)5523/52249, E-mail: [email protected]
America distribution: WolfVision Inc., 655 Sky Way, Suite 119, San Carlos, CA 94070 / USA, Tel.(650)802-0786, Tollfree 1-800-356WOLF, Fax: (650)802-0788, [email protected]
Asia representation: WolfVision Asia, 27 Woodlands Ind. Park E 1 #01-04, Hiang Kie Ind. Bldg. IV, Singapore 757718, Tel.++65-366 9288, Fax: ++65-366 9280, [email protected]
Canada distribution: WolfVision Canada Inc., 5460 Canotek Road, Unit 94, Ottawa, ON, K1J9G9, Tel. 888-294-9889, Fax: (450)294-2160, [email protected]
Japan distribution: WolfVision Japan. Nissho Higashi Nakano Bdlg. 2F, 2-1-6 Higashi Nakano-ku,Tokio, ZIP164-0003,Tel. (81)-3-3360 3231,Fax: (81)-3-3360-3236, [email protected]
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