Where Image Quality Begins
Product Guide
WWW.MIDOPT.COM
NIR
Block
Pass
Block
UV
BP635
NIR
Deep-to-Near UV Bandpass
Near-UV Bandpass
Near-UV Bandpass
Blue Bandpass
Green-Blue Bandpass
Cyan Bandpass
Light Green Bandpass
Photopic Response Filter
Near-IR/UV-Block Visible Bandpass
Orange Bandpass
Light Red Bandpass
Dark Red Bandpass
Near-IR Bandpass
Near-IR Bandpass
Near-IR Bandpass
Near-IR Bandpass
Near-IR Bandpass
BN470
BN532
BN595
BN630
BN650
BN660
BN740
BN785
BN810
BN850
BN880
BN940
Narrow Blue Bandpass
Narrow Green Bandpass
Narrow Orange Bandpass
Narrow Light Red Bandpass
Narrow Red Bandpass
Narrow Dark Red Bandpass
Narrow Near-IR Bandpass
Narrow Near-IR Bandpass
Narrow Near-IR Bandpass
Narrow Near-IR Bandpass
Narrow Near-IR Bandpass
Narrow Near-IR Bandpass
Bi405
Bi550
Bi632
Bi650
Bi660
Bi808
Bi850
Violet Interference Bandpass
Green Interference Bandpass
Light Red Interference Bandpass
Red Interference Bandpass
Dark Red Interference Bandpass
Near-IR Interference Bandpass
Near-IR Interference Bandpass
FWHM
(nominal)
Peak
Transmission
70nm
105nm
80nm
85nm
248nm
90nm
80nm
120nm
300nm
70nm
60nm
65nm
65nm
90nm
315nm
160nm
130nm
≥30%
≥90%
≥85%
≥90%
≥85%
≥90%
≥90%
≥70%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
45nm
55nm
45nm
45nm
50nm
45nm
50nm
45nm
50nm
45nm
45nm
55nm
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥85%
≥90%
Pass
Block
UV
BN630
NIR
Block
Bi SERIES
For laser diode
or other narrow
spectrum
light source
applications
VIS
Pass
Block
UV
230-275nm
290-365nm
335-400nm
425-495nm
440-555nm
485-550nm
500-555nm
495-565nm
410-690nm
560-600nm
615-645nm
640-680nm
680-720nm
715-780nm
745-950nm
820-910nm
845-930nm
BP
BN
Bi
BN SERIES — NARROW BANDWIDTH
460-490nm
525-550nm
580-610nm
625-645nm
638-672nm
645-675nm
730-755nm
770-790nm
798-820nm
840-865nm
855-890nm
928-955nm
Bi SERIES — NARROW INTERFERENCE BANDWIDTH
390-410nm
535-558nm
625-640nm
643-665nm
650-665nm
798-820nm
845-860nm
35nm
33nm
28nm
30nm
28nm
35nm
33nm
≥85%
≥88%
≥88%
≥85%
≥88%
≥85%
≥88%
Due to continuous product improvement, specifications are subject to change without notice.
Bi632
MidOpt BP and BN Series Filters
are Less Susceptible to Blue Shifting
Traditional bandpass filter designs
are highly sensitive to the angle at
which all light strikes the filter and
usually do not perform as well at
wider angles or at shallower angles
of incidence. Due to a unique hybrid
filter design, MidOpt filters exhibit
reduced angular dependency.
MidOpt BP635
Bandpass Filter
Traditional
Interference Filter
Light Source
100
0°
90
70
60
50
40
80
60
50
40
30
20
20
10
10
650
Wavelength (nm)
FI LT
FILTERER
70
30
550
15°
90
FILTER
80
Light Source
100
Transmission (%)
For LED or laser
diode use or
situations involving
overwhelming
ambient light
VIS
Bi632
MOUNT & SIZE OPTIONS
•Threaded Mount, C/CS Mount,
Slip Mount, Unmounted
•BP and BN Series Threaded Mount sizes:
M13.25-M105; Bi Series: M13.25-M82
•Custom shapes and sizes available
BN SERIES
BN630
•Enhanced contrast for viewing of desired features
•Designed for compatibility with all commonly
used LED and laser diode wavelengths and UV
excited fluorescence emissions
•Shields systems from unwanted ambient light
•Limits the loss of resolution associated with
chromatic aberrations
•Aids in increased LED light stability and longevity
by facilitating operation at reduced power levels
•Essential for successful imaging in the UV
and Near-IR. Visible light must be blocked to
maximize contrast in these situations.
•Surface Quality: 40/20
BP250
BP324
BP365
BP470
BP500
BP505
BP525
PE530
BP550
BP590
BP635
BP660
BP695
BP735
BP800
BP850
BP880
Transmission (%)
Control what the
camera detects,
ideal for LED or
laser diode use
VIS
BP635
BP SERIES
Block
FEATURES
Useful Range
BP SERIES — BROAD BANDWIDTH
The Quickest and Most Cost
Effective Way to Improve Image
Contrast and System Reliability
Bandpass filters transmit a specific portion of
the spectrum while blocking shorter and longer
wavelengths. The resulting increase in
signal-to-noise ratio improves contrast and
insures control of changes that may occur in
ambient lighting conditions. Broad bandwidth,
angular insensitivity and rugged designs allow
MidOpt Bandpass filters to be used with very
wide angle lenses regardless of the varying
spectral output of LED and laser diode lighting.
Description
Bandpass
› BANDPASS FILTERS
Part #
550
650
Wavelength (nm)
F IL FI LT
T E ER
R
F IL
TE
R
500
600
700
800
900
400
1000
300
400
500
600
700
800
600
700
800
900
900
1000
300
500
600
700
800
800
900
300
400
1000
300
400
500
600
700
800
900
1000
300
500
600
700
800
700
800
900
1000
300
BP
400
900
300
1000
400
500
600
700
800
600
700
800
900
1000
900
BN
Bi
BP880
100
90
80
70
60
50
40
30
20
10
1000
300
400
Wavelength (nm) (Typical)
900
500
Wavelength (nm) (Typical)
BP735
100
90
80
70
60
50
40
30
20
10
BP660
400
600
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
500
Transmission (%)
BP850
Transmission (%)
1000
BP635
100
90
80
70
60
50
40
30
20
10
BP550
400
700
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
600
BP735
NEW
500
500
BP850
100
90
80
70
60
50
40
30
20
10
Transmission (%)
400
Wavelength (nm) (Typical)
PE530
BP660
BP550
Transmission (%)
BP505
Transmission (%)
BP505
Wavelength (nm) (Typical)
300
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
200 300 400 500 600 700 800 900 1000
1000
Transmission (%)
BP365
900
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
800
BP800
400
700
Transmission (%)
PE530
Transmission (%)
BP500
300
600
Wavelength (nm) (Typical)
BP500
Wavelength (nm) (Typical)
500
BP695
BP590
400
BP880
300
Transmission (%)
1050
BP695
100
90
80
70
60
50
40
30
20
10
500
600
700
800
900
1000
Wavelength (nm) (Typical)
BP800
100
90
80
70
60
50
40
30
20
10
Transmission (%)
950
Transmission (%)
850
BP635
750
100
90
80
70
60
50
40
30
20
10
200 300 400 500 600 700 800 900 1000
BP365
650
Wavelength (nm) (Typical)
BP324
100
90
80
70
60
50
40
30
20
10
Transmission (%)
BP324
Wavelength (nm) (Typical)
550
Transmission (%)
BP525
450
BP590
100
90
80
70
60
50
40
30
20
10
Transmission (%)
350
200 300 400 500 600 700 800 900 1000
BP525
100
90
80
70
60
50
40
30
20
10
Transmission (%)
BP470
100
90
80
70
60
50
40
30
20
10
Transmission (%)
BP470
Transmission (%)
BP250
BP250
Bandpass
BP SERIES Broad Bandwidth
100
90
80
70
60
50
40
30
20
10
1000
300
400
Wavelength (nm) (Typical)
500
600
700
800
900
1000
Wavelength (nm) (Typical)
600
700
800
350
1000
450
900
1000
350
BN630
BN660
450
550
650
750
850
650
750
850
950
950
1050
350
450
550
650
750
850
950
1050
300
400
500
600
700
800
300
900
500
600
700
800
900
1000
800
900
300
Bi650
1000
550
650
750
850
Wavelength (nm) (Typical)
300
BN785
400
500
600
700
800
950
1050
900
600
700
800
900
1000
500
600
700
800
Wavelength (nm) (Typical)
400
1000
300
BN850
400
500
600
700
800
900
1000
900
600
700
800
900
1000
BN940
100
90
80
70
60
50
40
30
20
10
NEW
350
1000
450
550
650
750
850
950
1050
Wavelength (nm) (Typical)
Bi808
100
90
80
70
60
50
40
30
20
10
300
500
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Bi660
400
300
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
500
Transmission (%)
BN880
400
Wavelength (nm) (Typical)
Transmission (%)
Bi 660
450
Transmission (%)
BN810
700
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
350
600
100
90
80
70
60
50
40
30
20
10
1000
Transmission (%)
Bi 650
400
500
Bi850
100
90
80
70
60
50
40
30
20
10
400
500
600
700
800
900
1000
350
450
Wavelength (nm) (Typical)
550
650
750
850
950
1050
Wavelength (nm) (Typical)
Bi550
100
90
80
70
60
50
40
30
20
10
350
Bi632
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
The performance of a filter is based on what happens to light passing through the filter. The apparent
color of light reflected off the surface is not a reliable way to judge the filter's capabilities. Batch-to-batch
difference in the apparent color of the coatings or filter substrates can often be easily seen when looking at
two examples of the same filter type. The color of the coating does not indicate a disparity in performance.
Transmission (%)
Bi 550
Wavelength (nm) (Typical)
400
Wavelength (nm) (Typical)
Transmission (%)
Bi 632
Transmission (%)
Bi 405
Bi405
Transmission (%)
BN660
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
Wavelength (nm) (Typical)
Bi SERIES Narrow Interference Bandwidth
NEW
1050
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
550
Transmission (%)
900
BN940
800
Transmission (%)
500
700
Transmission (%)
BN630
Transmission (%)
BN532
BN532
400
600
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
500
BN740
BN650
400
BN880
100
90
80
70
60
50
40
30
20
10
Bi 850
300
Transmission (%)
1000
BN850
900
Transmission (%)
800
BN810
100
90
80
70
60
50
40
30
20
10
Bi 808
700
BN740
100
90
80
70
60
50
40
30
20
10
Transmission (%)
600
Wavelength (nm) (Typical)
NEW
BN785
500
Transmission (%)
BN595
400
BN650
100
90
80
70
60
50
40
30
20
10
Transmission (%)
300
BN595
100
90
80
70
60
50
40
30
20
10
Transmission (%)
BN470
Transmission (%)
BN470
BN SERIES Narrow Bandwidth
100
90
80
70
60
50
40
30
20
10
450
550
650
750
850
950
1050
Wavelength (nm) (Typical)
info@midopt.com | www.midopt.com
5
ACHIEVE ACCURATE COLOR RENDITION IN THE DAYLIGHT
Works Twice as Hard. Two Bandwidths, One Filter.
Using a DB940 filter, commensurate IR lighting produces virtually no visible
signature while daytime color rendition is uncompromised.
Dual Bandpass
› DUAL BANDPASS FILTERS
DB
Eliminate the Need for Two Cameras or a Filter Switching Mechanism
Dual Bandpass Filters are ideal for applications that use a color camera, allowing for accurate
color imaging during the day and infrared imaging at night. These filters pass visible light and a
specific IR band commensurate with the IR illumination frequency used at night.
100
SUNLIGHT
CCD SENSITIVITY(typical)
DB940
90
80
70
Transmission (%)
FEATURES
•Pass visible light and a specific narrow IR band
•Achieve natural color rendition by blocking interfering wavelengths
•Allow viewing of a scene with appropriately matched IR illumination at night
•Surface Quality: 40/20
60
50
40
30
20
•Threaded Mount sizes: M13.25-M82, C/CS Mount, Slip Mount, Unmounted
•Custom shapes and sizes available
10
350
450
550
650
750
850
950
1050
300
DB940
400
450
550
650
750
850
950
1050
Wavelength (nm) (Typical)
600
700
800
900
1000
500
600
700
800
Wavelength (nm)
900
1000
1100
DB940
100
90
80
70
60
50
40
30
20
10
300
400
400
500
600
700
800
900
1000
Sunlight contains an almost overwhelming amount of infrared light, however
output in the region around 940nm is not as significant. Using a DB940
(Visible/940nm) filter takes advantage of this phenomena, resulting in greatly
improved color rendition compared to Visible/850nm dual band filters.
Wavelength (nm) (Typical)
DB850
100
90
80
70
60
50
40
30
20
10
Transmission (%)
DB850
NEW
Transmission (%)
DB660/850
DB660/850
100
90
80
70
60
50
40
30
20
10
350
500
Wavelength (nm) (Typical)
Wavelength (nm) (Typical)
0
300
Transmission (%)
DB735
100
90
80
70
60
50
40
30
20
10
Transmission (%)
NEW
DB735
DB475/850
100
90
80
70
60
50
40
30
20
10
Transmission (%)
DB475/850
MOUNT & SIZE OPTIONS
300
400
500
600
700
800
900
1000
Wavelength (nm) (Typical)
No IR Blocking Filter
Useful Range
FWHM
(nominal)
DB850 Dual Bandpass Filter
DB940 Dual Bandpass Filter
Peak
Transmission
Part #
Description
DB475/850
Dual Bandpass Blue
+ 850 NIR
VIS 460-490nm
NIR 830-870nm
45nm,
55nm
≥90%
DB660/850
Dual Bandpass Red
+ 850 NIR
VIS 645-675nm
NIR 830-870nm
40nm,
50nm
≥90%
DB735
Dual Bandpass Visible
+ 735nm NIR
VIS 405-645nm
NIR 725-755nm
250nm,
50nm
≥90%
DB850
Dual Bandpass Visible
+ 850nm NIR
VIS 405-645nm
NIR 835-875nm
250nm,
50nm
≥90%
DB940
Dual Bandpass Visible
+ 940nm NIR
VIS 405-650nm
NIR 925-965nm
250nm,
60nm
≥90%
DB SERIES — DUAL BANDWIDTH
Due to continuous product improvement, specifications are subject to change without notice.
6
Midwest Optical Systems, Inc.
info@midopt.com | www.midopt.com
7
FEATURES
•Pass VIS/Near-IR wavelengths
•Transmits a very broad spectrum of light
•Surfaces provided with durable, high efficiency
anti-reflection coatings in order to protect polished
glass surfaces and increase light throughout
•Suited for wide angle applications
•Use with a Shortpass filter to create
a custom Bandpass filter
•Surface Quality: 40/20
MOUNT & SIZE OPTIONS
900
1000
300
800
900
300
800
900
1000
Wavelength (nm) (Typical)
8
300
400
LP645
500
600
700
800
900
Midwest Optical Systems, Inc.
300
LP665
500
600
700
800
Wavelength (nm) (Typical)
800
900
1000
300
LP645
400
500
600
700
800
900
1000
900
500
600
700
800
Wavelength (nm) (Typical)
700
800
900
350
1000
300
LP715
400
500
600
700
800
900
1000
900
500
600
700
800
Wavelength (nm) (Typical)
750
850
950
Transmission (%)
1050
300
400
350
LP815
NEW
450
550
650
750
850
900
1000
950
500
600
700
800
Wavelength (nm) (Typical)
700
800
900
1000
LP920
100
90
80
70
60
50
40
30
20
10
1050
300
LP830
400
600
400
500
600
700
800
900
1000
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
500
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
1000
LP780
400
650
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
550
LP850
NEW
450
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
1000
LP665
400
600
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
500
Transmission (%)
LP800
400
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
1000
LP610
400
700
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
600
Wavelength (nm) (Typical)
LP590
400
500
LP850
100
90
80
70
60
50
40
30
20
10
Transmission (%)
1000
LP800
100
90
80
70
60
50
40
30
20
10
LP920
900
Transmission (%)
LP610
700
800
Transmission (%)
LP515
LP530
Transmission (%)
600
700
100
90
80
70
60
50
40
30
20
10
1000
LP530
500
600
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
400
500
LP695
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LP630
400
LP630
100
90
80
70
60
50
40
30
20
10
LP695
LP580
Wavelength (nm) (Typical)
300
LP
900
1000
LP1000
100
90
80
70
60
50
40
30
20
10
Transmission (%)
300
LP590
700
≥90%
≥98%
≥90%
≥95%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥90%
≥95%
≥90%
≥90%
≥90%
≥90%
Due to continuous product improvement, specifications are subject to change without notice.
1000
Wavelength (nm) (Typical)
Transmission (%)
600
≥98%
330nm
340nm
390nm
415nm
470nm
495nm
515nm
530nm
550nm
580nm
590nm
610nm
630nm
645nm
665nm
695nm
715nm
780nm
800nm
815nm
830nm
850nm
920nm
1000nm
LP1000
1050
LP515
500
285nm
350-1100nm
350-800nm
410-1100nm
415-1100nm
480-1100nm
510-1100nm
520-1100nm
545-1100nm
560-1100nm
585-1100nm
605-1100nm
620-1100nm
645-1100nm
650-1100nm
680-1100nm
715-1100nm
730-1100nm
800-1100nm
820-1100nm
825-1100nm
845-1100nm
870-1100nm
930-1100nm
1010-1500nm
Transmission (%)
950
100
90
80
70
60
50
40
30
20
10
400
900
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
300
800
LP815
850
350-1100nm
Transmission (%)
750
700
LP830
650
600
Transmission (%)
550
500
Transmission (%)
LP580
Transmission (%)
LP500
LP500
450
Protective Window
A/R Protective Window
UV Absorbing Protective Window
UV Block A/R Protective Window
Light Yellow Longpass
Yellow Longpass
Yellow-Orange Longpass
Orange Longpass
Orange Longpass
Red-Orange Longpass
Red Longpass
Red Longpass
Red Longpass
Dark Red Longpass
Dark Red Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Near-IR Longpass
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
350
LP330*
LP340*
LP390*
LP415*
LP470
LP500
LP515
LP530
LP550
LP580
LP590
LP610
LP630
LP645
LP665
LP695
LP715
LP780
LP800
LP815
LP830
LP850
LP920
LP1000
Peak
Transmission
*See page 16 for filter curves
400
LP715
800
LP285*
High Transmission Heat Resistant
VIS-NIR A/R Protective Window
Cut-on WL
50% T
Useful Range
Transmission (%)
700
LP780
600
Wavelength (nm) (Typical)
Transmission (%)
500
Transmission (%)
400
Transmission (%)
300
LP550
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LP550
Transmission (%)
LP470
•Threaded Mount sizes: M13.25-M105,
C/CS Mount, Slip Mount, Unmounted
•Custom shapes and sizes available
LP470
Description
LP SERIES — LONGPASS
Block Shorter Wavelength Light While
Passing Longer VIS and NIR Wavelengths
100
90
80
70
60
50
40
30
20
10
Part #
Longpass
› LONGPASS FILTERS
700 800
900 1000 1100 1200 1300 1400 1500
Wavelength (nm) (Typical)
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9
SP SERIES NIR Block/VIS Pass
•Commonly placed over the camera’s image sensor to block NIR light and to
achieve natural color rendition
•Reduces IR radiation or camera bloom from hot metal or glass extrusion processes
•Use as a hot mirror to reduce unwanted heat caused by IR radiation
900
300
400
400
500
600
700
800
Wavelength (nm) (Typical)
600
700
800
900
1000
900 1000
NF550
100
90
80
70
60
50
40
30
20
10
Transmission (%)
NF550
SP570
SP570
300
500
Wavelength (nm) (Typical)
Transmission (%)
200
400
300
500
600
700
800
900
700
800
900
1000
SP650
500
600
700
800
350
1000
450
550
SP730
400
500
600
700
800
900
1000
900
300
900
1100
Useful Range
950
1050
SP730
400
500
600
700
800
900
1000
1300
1500
SP785
100
90
80
70
60
50
40
30
20
10
300
400
500
Wavelength (nm) (Typical)
Description
1000
700
850
Wavelength (nm) (Typical)
SP701
500
750
100
90
80
70
60
50
40
30
20
10
1000
100
90
80
70
60
50
40
30
20
10
300
Wavelength (nm) (Typical)
650
Wavelength (nm) (Typical)
SP700
300
NEW
400
900
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
300
800
Transmission (%)
SP700
600
700
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
Part #
400
500
600
Wavelength (nm) (Typical)
SP645
400
500
Transmission (%)
SP705
Transmission (%)
300
Transmission (%)
SP645
1000
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
1000
SP785
800
900
Transmission (%)
700
800
SP701
600
700
Transmission (%)
500
300
SP650
SP585
400
600
100
90
80
70
60
50
40
30
20
10
SP585
100
90
80
70
60
50
40
30
20
10
Transmission (%)
SP510
Transmission (%)
SP510
SP SERIES VIS Pass
300
500
Wavelength (nm) (Typical)
•Threaded Mount sizes: M13.25-M105, C/CS Mount, Slip Mount, Unmounted
•Custom shapes and sizes available
100
90
80
70
60
50
40
30
20
10
400
SP705
100
90
80
70
60
50
40
30
20
10
Transmission (%)
300
SP675
100
90
80
70
60
50
40
30
20
10
SP
Transmission (%)
MOUNT & SIZE OPTIONS
SP625
100
90
80
70
60
50
40
30
20
10
SP675
•Pass a broad spectrum of shorter wavelengths
•Can be used with Longpass filters to create a custom Bandpass filter
•Surface Quality: 40/20
SP625
FEATURES
Transmission (%)
Pass Shorter Wavelengths While
Blocking Longer Wavelength Light
Shortpass
› SHORTPASS / NIR CUT FILTERS
600
700
800
900
1000
Wavelength (nm) (Typical)
Cut-off WL 50% T
Peak
Transmission
SP SERIES — VIS PASS
Wavelength (nm) (Typical)
SP510
SP570
SP585
Blue Shortpass
Blue-Green Shortpass
Cyan Shortpass
340-500nm
410-560nm
395-575nm
510nm
570nm
585nm
≥90%
≥90%
≥90%
NF550
Magenta Dichroic (Green Block)
395-475nm,
605-700nm
480 / 590nm
(cut-off / cut-on)
≥90%
SP SERIES — NEAR-IR BLOCK
SP625
SP645
SP650
SP675
Blue-Orange Shortpass
Near-IR/Mid-Red Dichroic Block
Near-IR/Mid-Red Dichroic Block
Near-IR/Deep Red Dichroic Block
425-620nm
400-640nm
400-640nm
420-660nm
625nm
645nm
650nm
675nm
≥90%
≥90%
≥90%
≥90%
SP700
Near-IR/UV-Block Visible Shortpass
410-690nm
400 / 700nm
(cut-on / cut-off)
≥90%
SP701
Extended Hot Mirror /
Reflects up to 1550nm
410-690nm
400 / 705nm
(cut-on / cut-off)
≥85%
SP705
SP730
SP785
Near-IR/Deep Red Absorp. Block
Near-IR/Colorless Dichroic Block
Modified Near-IR Dichroic Block
370-630nm
400-710nm
425-770nm
705nm
730nm
785nm
≥88%
≥90%
≥90%
Due to continuous product improvement, specifications are subject to change without notice.
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11
3000
2000
1000
400
450
500
550
600
650
700
5000
Contrast
PC052
Contrast
PR032
4000
6000
4000
3000
2000
1000
750
400
450
Wavelength (nm) (Typical)
PR120
3000
NEW
2000
1000
600
650
750
700
Pi031
750
6000
5000
4000
3000
2000
1000
400
Pi035
9000
8000
7000
600
Wavelength (nm) (Typical)
Part #
700
8000
7000
6000
5000
Contrast
4000
550
650
Contrast
5000
500
600
9000
6000
450
550
Wavelength (nm) (Typical)
7000
400
500
P i 035
•Polarizing Filters: Rotating Threaded Mount sizes: M22.5-M105, Slip Mount, Unmounted
•Polarizing Sheets: Custom cut to fit any lighting, maximum usable width 16.5"
5000
PC052
7000
P i 031
MOUNT & SIZE OPTIONS
6000
Contrast
•Available in both Linear and Circular for imaging in the Visible and Near-IR
•Threaded filters are equipped with a rotating mount and locking thumb screw
•Use with Linear and Circular polarizing sheet material for maximum reduction in glare
•Filter Surface Quality: 40/20; (PR120: 80/50)
PR120
FEATURES
PR032
7000
Filters
Sheets
Reduce Unwanted Reflection or Specular Glare
Polarizing
› POLARIZING FILTERS & SHEET MATERIAL
800
1000 1200 1400 1600 1800 2000
Wavelength (nm) (Typical)
Description
4000
3000
2000
1000
400
600
800
1000 1200 1400 1600 1800 2000
Wavelength (nm) (Typical)
Useful Range
Contrast Ratio
POLARIZING FILTERS
Linear Polarizer
400-700nm
800:1
PR120
Ultra High Contrast Linear Polarizer
400-700nm
6500:1
PC052
Circular Polarizer
400-700nm
700:1
Pi031
NIR/Vis Linear Polarizer, High Extinction
400-2000nm
3000:1
Pi035
NIR/Vis Linear Polarizer, High Transmission
400-2000nm
500:1
400-700nm
400-700nm
400-700nm
400-700nm
400-700nm
400-700nm
700-1100nm
800:1
800:1
3000:1
6500:1
5000:1
6500:1
1000:1
POLARIZING SHEETS
UNPOLARIZED
LIGHT
LINEAR POLARIZING FILM
(FOR LIGHT SOURCE)
PR032
LINEAR POLARIZING FILTER
(FOR LENS) Rotate perpendicular to the axis
of polarization of the Linear Polarizing Sheet
for maximum glare reduction.
PS007
PSA007
PS010
PS030
HT025
PG120
Pi005
High Contrast Linear Polarizing Film .007" thk
High Contrast Linear Polarizing Film .007" thk Self Adhesive
High Contrast Linear Polarizing Film .010" thk
Ultra High Contrast Linear Polarizing Film .030" thk
High Temperature Linear Polarizing Film .025" thk
Ultra High Contrast Glass Linear Polarizing Sheet
NIR High Contrast Linear Polarizing Film .007" thk
NEW
NEW
Circular Polarizing Sheets available in Left and Right-handed options
Due to continuous product improvement, specifications are subject to change without notice.
Best results are achieved when
polarizing film is used over
the light source in conjunction
with a polarizing filter over the
camera lens.
No Filter
12
Midwest Optical Systems, Inc.
Polarizing
Filter
Polarizing
Filter & Film
MOUNTED POLARIZING FILTERS (for Lens)
Equipped with a rotating mount and locking
thumbscrew to maintain orientation when
cleaned or exposed to shock or vibration
POLARIZING SHEETS (for Light Source)
Can be cut to fit almost any type
of lighting equipment
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13
Optical
Density
425-675nm
425-675nm
425-675nm
425-675nm
425-675nm
425-675nm
425-675nm
0.3
0.6
0.9
1.2
2.0
3.0
4.0
400-1100nm
400-1100nm
400-1100nm
400-1100nm
0.3
0.6
0.9
1.2
ND SERIES — VIS
ND030
ND060
ND090
ND120
ND200
ND300
ND400
Absorptive 50% Transmission
Absorptive 25% Transmission
Absorptive 12.5% Transmission
Absorptive 6.25% Transmission
Absorptive 1.0% Transmission
Absorptive 0.1% Transmission
Absorptive 0.01% Transmission
Ni030
Ni060
Ni090
Ni120
Low Reflectivity 50% Transmission
Low Reflectivity 25% Transmission
Low Reflectivity 12.5% Transmission
Low Reflectivity 6.25% Transmission
Midwest Optical Systems, Inc.
Transmission (%)
Transmission (%)
400
400
500
600
700
800
900
1000
300
ND090
600
700
800
900
1000
ND200
400
500
600
700
800
900
Sunglasses for
Your System
1000
900
ND300
ND400
100
90
80
70
60
50
40
30
20
10
Transmission (%)
ND300
500
800
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
400
700
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
300
600
Transmission (%)
ND200
Transmission (%)
300
500
300
1000
400
500
600
700
800
900
ND400
100
90
80
70
60
50
40
30
20
10
Transmission (%)
ND030
ND120
300
ND060
1000
300
400
Wavelength (nm) (Typical)
Wavelength (nm) (Typical)
500
600
700
800
900
1000
Wavelength (nm) (Typical)
Ni SERIES VIS/NIR Low Reflectivity
Ni030
100
90
80
70
60
50
40
30
20
10
350
450
550
650
750
850
950
1050
Wavelength (nm) (Typical)
Ni 060
Ni060
Transmission (%)
350
Ni090
100
90
80
70
60
50
40
30
20
10
450
550
650
750
850
350
450
550
650
750
850
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
14
1000
Wavelength (nm) (Typical)
100
90
80
70
60
50
40
30
20
10
Ni SERIES — VIS/NIR
Due to continuous product improvement, specifications are subject to change without notice.
900
950
1050
Ni120
100
90
80
70
60
50
40
30
20
10
Transmission (%)
Useful Range
800
Ni
Ni 120
Description
700
ND
Transmission (%)
Part #
600
Ni 090
MOUNT & SIZE OPTIONS
•Threaded Mount sizes: M13.25-105, C/CS Mount, Slip Mount, Unmounted
•Custom shapes and sizes available
•Can be stacked with other Neutral Density filters to achieve various optical densities
*Custom densities available upon request
500
ND120
100
90
80
70
60
50
40
30
20
10
Wavelength (nm) (Typical)
ND060
•Reduce light intensity neutrally throughout the VIS and NIR spectrums
•Use with monochrome or color cameras, or can be placed over bright light sources
•Made with low-expansion, heat-resistant Borofloat® glass, Ni filters can be used to
aid in thermal load reduction
•Superior parallelism and surface quality
•Surface Quality: 40/20
400
Transmission (%)
Ni Series – VIS/NIR, Low Reflectivity
300
ND090
•Reduce light intensity in the visible spectrum without affecting color and contrast
•Use with monochrome or color cameras when imaging in the visible (VIS) spectrum
•Eliminate over-saturated images
•Surface Quality: 40/20
ND030
100
90
80
70
60
50
40
30
20
10
Transmission (%)
ND Series – VIS, Absorptive
ND SERIES VIS Absorptive
Ni 030
Reduce Light Intensity
Neutral Density
› NEUTRAL DENSITY FILTERS
950
1050
350
450
550
650
750
850
Wavelength (nm) (Typical)
950
1050
Protective
› PROTECTIVE FILTERS
AC SERIES Acrylic Longpass
Shield Lenses and Lighting from Impact,
Dust and Harsh Environments.
Durable, Lightweight and Economical
Solution for Inspection Windows.
LP
AC
•Acrylic material has up to 10X the breakage resistance of glass
•Suitable for FDA-type applications
•Can be sold in larger sheets up to 900mm sq. Standard thickness is 2.0mm
•AC380 surfaces feature vacuum sputtered coatings; (1) high-efficiency anti-reflection
coatings (T>99+% per surface) and (2) scratch- and solvent-resistant coatings that are
impenetrable to solvents such as acetone, MEK and severe abrasion
•All types block UV radiation
•AC380 surface quality: 40/20; AC685 and AC760: 80/50
LP SERIES Lens Protection
•Glass substrates with tight control of parallelism and cosmetic
surface quality
•Block UV while passing visible and near-IR wavelengths
•Spectrally neutral within the designated passband
•High efficiency anti-reflection coatings are standard on LP285,
LP340 and LP415 filters to maximize transmission
•Surface Quality: 40/20
MOUNT & SIZE OPTIONS
•Can be precision laser-cut in house to any desired size or configuration for next day delivery
•Available in Threaded Mount sizes: M13.25-M105; Slip Mount
MOUNT & SIZE OPTIONS
200 300 400 500 600 700 800 900 1000
LP415
200 300 400 500 600 700 800 900 1000
700
800
900
1000
Useful Range
Cut-on WL
50% T
Peak
Transmission
AC380
Description
AC380
100
90
80
70
60
50
40
30
20
10
300
400
500
LP SERIES – LENS PROTECTION
High Transmission Heat Resistant
VIS-NIR A/R Protective Window
350-1100nm
285nm
≥98%
LP330
LP340
LP390
LP415
Protective Window
A/R Protective Window
UV Absorbing Protective Window
UV-Block A/R Protective Window
350-1100nm
350-800nm
410-1100nm
415-1100nm
330nm
340nm
390nm
415nm
≥90%
≥98%
≥90%
≥95%
Due to continuous product improvement, specifications are subject to change without notice.
16
Midwest Optical Systems, Inc.
700
800
900
1000
300
Wavelength (nm) (Typical)
LP285
› For economical lens protection, see AC380 on page 17
600
AC685
100
90
80
70
60
50
40
30
20
10
NEW
400
500
600
700
800
900
1000
AC760
100
90
80
70
60
50
40
30
20
10
Transmission (%)
600
Wavelength (nm) (Typical)
AC760
500
Transmission (%)
400
AC685
300
Wavelength (nm) (Typical)
Transmission (%)
LP390
Custom cut to match equipment requirements
LP390
100
90
80
70
60
50
40
30
20
10
200 300 400 500 600 700 800 900 1000
Part #
Wavelength (nm) (Typical)
Transmission (%)
LP330
100
90
80
70
60
50
40
30
20
10
200 300 400 500 600 700 800 900 1000
Wavelength (nm) (Typical)
Transmission (%)
LP330
Wavelength (nm) (Typical)
LP415
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LP340
100
90
80
70
60
50
40
30
20
10
Transmission (%)
NEW
LP340
LP285
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LP285
•Threaded Mount sizes: M13.25-M105,
C/CS Mount, Slip Mount, Unmounted
300
NEW
400
Wavelength (nm) (Typical)
Part #
Description
Useful Range
AC380
AC685
AC760
A/R Acrylic Protective Window
Acrylic Near-IR Longpass
Acrylic Near-IR Longpass
500
600
700
800
900
1000
Wavelength (nm) (Typical)
Cut-on WL
50% T
Peak
Transmission
380nm
685nm
760nm
≥95%
≥90%
≥90%
AC SERIES – ACRYLIC LONGPASS
450-850nm
710-1100nm
780-1100nm
Due to continuous product improvement, specifications are subject to change without notice.
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17
Mount Over Your Color Camera’s Lens
to Achieve Natural Color Rendition
Custom Optics
Light Balancing
› LIGHT BALANCING FILTERS
› CUSTOM OPTICS
MidOpt supplies custom, stock and modified-stock optical components for a variety
of applications and end uses. Orders ranging in volume for one to tens of thousands
of pieces can be accommodated.
FEATURES
•Used to modify the color temperature or balance when LED, fluorescent, sodium,
halogen, metal halide, tungsten or other white lighting is being utilized in the area
•LA series (amber) filters reduce blue shading (“warm” the scene) that often
strongly predominates with some types of white LED and xenon strobe lighting
•LB series (blue) filters subdue the reddish hue found with some tungsten,
halogen, sodium and other light sources
•FL series filters used to reduce the greenish cast created by fluorescent lighting
•Surface Quality: 40/20
Spherical Lenses
Cylindrical Lenses
Multi-Element Lenses
Windows & Dust Covers
Mirrors
Prisms
MOUNT & SIZE OPTIONS
•Threaded Mount sizes: M13.25-M105, Slip Mount, Unmounted
•Custom shapes and sizes available
Part #
Description
LA080
LA120
LB080
LB120
FL550
Light Balancing (Minus Blue)
Light Balancing (Minus Blue)
Light Balancing (Minus Red)
Light Balancing (Minus Red)
Light Balancing (Minus Green)
Useful Range
Mired
Shift Value
400-700nm
400-700nm
400-700nm
400-700nm
400-700nm
+80
+120
-80
-120
N/A
300
500
600
700
800
900
1000
300
400
Wavelength (nm) (Typical)
500
600
700
800
900
1000
Wavelength (nm) (Typical)
Wedges
300
400
500
600
700
800
900
1000
Wavelength (nm) (Typical)
400
500
600
700
800
900
1000
Wavelength (nm) (Typical)
Custom Filters
LB120
100
90
80
70
60
50
40
30
20
10
300
400
500
600
700
800
900
Beamsplitters
Transmission/
Reflection
50:50
70:30
30:70
80:20
20:80
Transmission (%)
LB120
Transmission (%)
LA120
300
Diffusers
FL550
100
90
80
70
60
50
40
30
20
10
Mechanical Parts
LA120
100
90
80
70
60
50
40
30
20
10
Light Pipes
Transmission (%)
FL550
LB080
400
LB080
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LA080
100
90
80
70
60
50
40
30
20
10
Transmission (%)
LA080
Due to continuous product improvement, specifications are subject to change without notice.
1000
Wavelength (nm) (Typical)
Thickness
0.5-3.0 mm
1.0-2.0 mm
1.0-2.0 mm
1.0-2.0 mm
1.0-2.0 mm
Test Glass Rental
MidOpt has more than 3,000 test glass radii in house, one
of the largest inventories of test glasses in the world.
18
Midwest Optical Systems, Inc.
info@midopt.com | www.midopt.com
19
Evaluate and Improve Image Quality
with MidOpt Filter Test Kits
• Solve applications quickly and instantly test the
effects of color/wavelength
• Control the variability of ambient light
• Evaluate glare reduction
• Enhance contrast of objects or features of interest
MidOpt Bandpass Filters Emulate
the Output of LED Illumination
Filter Test Kits
› FILTER TEST KITS
Quickly Solve Applications On-Site
No Mounting Required
Reduce Cost and Lead Time
Being equipped with a large variety
of lighting options can be impractical
and expensive. Testing with MidOpt
filters offers significant savings in time
and resources when working toward
an optimal lighting solution. Once
an appropriate wavelength range
has been determined, a bandpass
filter is then used to complement the
chosen lighting and control potential
interference from ambient light.
Testing the effects of monochromatic LED
illumination in a system is easily accomplished
by using available white light and a MidOpt Filter
Kit. When testing, each bandpass filter achieves
a similar result as the matching LED wavelength
would yield. This aids in determining the
appropriate LED wavelength for the application.
FS100 Machine Vision
Swatch Filter Kit
BP324
BP470
BP505
BP525
BP550
NS100 Neutral Density
Swatch Filter Kit
BP590
BP635
BP660
BP850
PR032
ND030
ND060
ND090
ND120
ND200
ND300
ND400
43mm size filters
43mm size filters
NEW
NEW
FK200-27 Machine Vision Filter Kit
Ten most popular UV, Visible and NIR
machine vision filters. For lenses with
M25.5, M27 and M30.5 threads.
BP324-27
BP470-27
BP505-27
BP525-27
BP550-27
BP590-27
BP635-27
20
BP660-27
BP850-27
PR032-27
PS007
SU25.5-27
SD30.5-27
Midwest Optical Systems, Inc.
FK220-27 BN Series Filter Kit
Reduced bandwidth design for further
spectral separation. Recommended for
outdoor applications or situations where
ambient light can be overwhelming. For
lenses with M25.5, M27 and M30.5 threads.
BN470-27
BN532-27
BN595-27
BN630-27
BN660-27
BN740-27
BN810-27
BN850-27
BN940-27
PR032-27
PS030
SU25.5-27
SD30.5-27
FK100-size Machine Vision
Binder Filter Kit
Available in all Threaded Mount Sizes:
M13.25 - M105
BP324
BP470
BP525 BP550 BP590 BP635 BP660
BP850
LA120
PR032
PS007
SU25.5-27
SD30.5-27
*Step Adapter Rings
Included in M27 only
ALSO AVAILABLE: IK100 NIR Machine Vision Binder Filter Kit
Includes: LP695, LP780, BP800, BP850, LP920, LP1000
NK100 Neutral Density Binder Filter Kit
Includes: ND030, ND060, ND090, ND120, ND200, ND300, ND400
TO ORDER: Add Threaded Mount size (e.g. 43) to Binder Kit
of choice. Example Part #: FK100-43
SK100 Filter Kit
The Ultimate Filter Kit
The NEW SK100 includes 70 pieces
of M27 size filters for UV, VIS and
NIR imaging; making it the ultimate
resource for testing the effects of
color and wavelength when
evaluating image quality.
Filter categories included:
Bandpass; Dual Bandpass; Longpass;
Neutral Density; Shortpass; Polarizing;
Light Balancing and Protective
info@midopt.com | www.midopt.com
21
Mount Sizes
› MOUNTING SOLUTIONS
› ACCESSORIES
› THREADED
Mount
Size
M13.25
M22.5
M25.5
M27
M30.5
M34
M35.5
M37
M37.5
M39
M40.5
M43
M46
M48
M49
M52
M55
M58
M62
M67
M72
M77
M82
M86
M95
M105
MOUNTS FOR ANY SYSTEM
LE100 CS Mount
Lens Enclosure
Protect Your Lens
• Fits CS Mount cameras
• Anti-reflection coated to maximize transmission
• Accommodates lenses up to 42.5mm in length
and 37.5mm in diameter, including thumbscrews
Extension Rings
Two A/R Protective Lens Options
LE100-LP340: Glass Protective Window
LE100-AC380: Acrylic Protective Window
• Increase magnification for close-up applications
• Available as a 6 Ring Set EXT-S-SET, 4 Ring Set
EXT-UL-SET and individual sizes; 0.5mm-100mm
LE100* Enclosure Set Includes the Following:
LE254-43: Enclosure mount with built in 5mm spacer
Extension Tube Sizes: LE025-43 (25mm), LE010-43
(10mm), LE005-43 (5mm)
Decrease Minimum Object Distance
Threaded Mount
Designed for Lenses with Filter Threads
• Sizes available: M13.25-M105
• Black anodized aluminum
• Custom thread sizes are available
upon request
CREATE PART #
Select a filter and add a mount size
(e.g. M27) Example: BP470-27
Custom adapters available for various C-mount
camera models. Contact us for details.
*Additional extension tubes in the above sizes are
available and can be purchased individually to
accommodate longer lenses
Designed to thread directly into any C/CS mount camera
• Threads between the lens and sensor, each filter is supplied
with an installation wrench
• Helpful in applications with space constraints
• Can be used with wide angle lenses that do not accept filters
at the front end to prevent vignetting
• Pitch: P32 (TPI)
Step Adapter Rings
Filter and Lens Size Versatility
Step-Up Rings
• Use larger diameter filters on lenses
with smaller diameter filter threads
• Available sizes: SU22.5-25.5 – SU77-105
Step-Down Rings
• Use smaller diameter filters on lenses
with larger diameter filter threads
• Available sizes: SD27-25.5 – SD72-62
Part #:
RA034
C/CS Camera Mount
CREATE PART #
Select a filter and add “-25.4” Example: BP470-25.4
M25.4
Increase Focus Distance
• Threads onto the front of a lens
• Available from stock, mounted in threaded,
black anodized aluminum rings, sizes M25.5-M62
• Each set consists of +1, +2 and +4 diopter lenses
› SLIP MOUNT
Slip Mount
Designed for Wide Angle Lenses
without Filter Threads
Threaded Filter Mount
• Accommodates standard threaded mounts
• Low profile and oversize diameter design
prevents wide angle lens vignetting
• Includes black Delrin Slip Mount adapter
plus Thread-mounted Filter
CREATE PART #
Select a filter, use “S” for slip and add the outside diameter
of lens in mm (e.g. 43mm) Example: BP470-S43
Slip Mount
Lens
1.4
1
1.4
3
1.4
1
M22.5
4
16
2
4
16
2
4
16
3
32.0-40.9 M46
41.0-50.9 M55
51.0-57.9 M62
58.0-68.0 M72
68.1-79.0 M82
79.1-101.0 M105
View at a 90° angle
Part #: CK100
CK100 Cleaning Kit
For all Optics, Lenses and Lighting
Contents: Compressed Air Duster, Glass Surface
Cleaner, Premium Grade Optical Tissue, Microfiber
Cleaning Cloth, Cotton Swabs
(Also available in a compact version for easy
storage. Part #: CK100-NA. Compressed Air Duster
is not included.)
Midwest Optical Systems, Inc.
15-19.0
26.6-31.9 M40.5
2
3
1
Outside
Threaded
Diameter Mount
Range
19.1-26.5 M30.5
Rotating Right Angle Attachments
22
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.75
0.5
0.5
0.5
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
1.0
1.0
1.0
› C/CS MOUNT
Close-Up Lens Set
Part #:
RA060
• Helpful for applications with space constraints
• Locks in position with a thumbscrew, guarding
against movement due to shock or vibration
• Can be used in conjunction with a filter
• Available adjustments through 360° (RA034)
and 300° (RA060)
Pitch
Unmounted
• Any MidOpt filter type can be provided
as an Unmounted filter
• Custom shapes and sizes are typically
available within a two week lead time
CREATE PART #
CIRCLE: Use “D” and add diameter in mm (e.g. 19mm) Example: BP470-D19.
SQUARE: Use “R” and add side measurement in mm (e.g. 15mm) Example: BP470-R15.
RECTANGLE: Use “R” and add length in mm (e.g. 30mm) x width in mm (e.g. 15mm) Example: BP470-R30x15
› UNMOUNTED
Custom Shapes
& Sizes Available
A manufacturer of custom precision optical components and
systems since 1988, Midwest Optical Systems (MidOpt) is
recognized as the world’s leading resource for off-the-shelf
and custom machine vision filters, lenses and accessories
used in industrial imaging applications.
MidOpt filters and coatings are extremely durable and
tough enough to withstand repeated cleaning, solvents,
high heat, humidity and vibration without degradation.
MidOpt has an extensive history in optical component
design, fabrication and inspection, and continues to
develop innovative new products for industrial imaging
that are simply not found elsewhere.
APPLICATIONS/INDUSTRIES SERVED:
› Machine Vision
› Security & Defense
› License Plate Recognition / Intelligent
Traffic Solutions
› Medical and Life Science
› Scientific Research
› Agriculture / NDVI
(Normalized Difference Vegetation Index)
› Aerial Imaging
› Motion Analysis & Gaming
› Media & Photography
WWW.MIDOPT.COM
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