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Midwest Optical Filters
Machine vision filters from Midwest Optical Systems are designed to increase the contrast of the subject under inspection, improving the ability of the system to distinguish desired characteristics. Increased contrast allows for increased accuracy and speed. Some of the various filter types offered include Bandpass, Infrared, Neutral Density, and Polarizing – mounted and hard coated.
Over 66 different filter types are currently offered by Midwest Optical Systems, available in at least 16 sizes for each type. Please contact us if you need assistance with selecting a filter model and/or are interested in a swatch kit for testing purposes.
Note: Filter orders are considered to be special order and are not returnable.
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*Contact us for discounted pricing*
Bandpass Filters
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BP Series - Broad Bandwidth | |||
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Model # |
Description |
Range |
StablEDGE |
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Deep-to-Near-UV Bandpass Filter |
230-280nm |
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Near-UV Bandpass Filter |
290-365nm |  |
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| BP365 | Near-UV Bandpass Filter | 335-400nm | |
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| BP470 | Blue Bandpass Filter | 425-495nm | |
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| BP485 | Absorptive Visible Bandpass/Near-IR Block Filter | 380-585nm | |
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| BP500 | Green-Blue Bandpass Filter | 440-555nm | |
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| BP505 | Cyan Bandpass Filter |
485-550nm |
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| BP525 | Light Green Bandpass Filter | 500-555nm | |
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| PE530 | Photopic Response Bandpass Filter | 495-565nm | |
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| BP540 |
(Limited) Light Green Bandpass Filter |
515-560nm | |
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| BP550 |
Near-IR/UV-Block Visible Bandpass Filter |
405-690nm | |
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| BP590 |
Orange Bandpass Filter |
560-600nm | |
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| BP635 |
Light Red Bandpass Filter |
615-645nm | |
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| BP660 |
Dark Red Bandpass Filter |
640-680nm | |
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| BP695 |
Near-IR Bandpass Filter |
680-720nm | |
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| BP735 | Near-IR Bandpass Filter | 715-780nm | |
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| BP800 | Near-IR Bandpass Filter |
745-950nm |
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| BP810 |
(Limited) Near-IR Bandpass Filter |
790-830nm |
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| BP845 | (Limited) Near-IR Bandpass Filter |
830-865nm |
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| BP850 |
Near-IR Bandpass Filter |
820-910nm | |
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| BP865 |
(Limited) Near-IR Bandpass Filter |
840-880nm | |
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| BP880 |
Near-IR Bandpass Filter |
845-930nm | |
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| BP1000 | Short-Wave Infrared Bandpass Filter |
920-1030nm |
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| BP1550 |
Short-Wave Infrared Bandpass Filter |
1485-1645nm | |
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BN Series - Narrow Bandwidth |
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Model # |
Description |
Range |
StablEDGE |
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| BN470 | Narrow Blue Bandpass Filter | 460-490nm | |
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| BN485 | (Limited) Narrow Blue Bandpass Filter | 480-490nm | |
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| BN490 | (Limited) Narrow Green-Blue Bandpass Filter | 475-500nm | |
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| BN520 | Narrow Green Bandpass Filter | 510-545nm | |
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| BN535 | Narrow Green Bandpass Filter | 520-545nm | |
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| BN532 | Narrow Green Bandpass Filter | 525-550nm | |
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| BN595 | Narrow Orange Bandpass Filter | 580-610nm | |
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| BN630 | Narrow Light Red Bandpass Filter | 625-645nm | |
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| BN650 | Narrow Red Bandpass Filter | 638-672nm | |
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| BN660 | Narrow Dark Red Bandpass Filter | 645-675nm | |
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| BN740 | Narrow Near-IR Bandpass Filter | 730-755nm | |
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| BN785 | Narrow Near-IR Bandpass Filter | 770-790nm | |
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| BN810 | Narrow Near-IR Bandpass Filter | 798-820nm | |
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| BN840 | (Limited) Narrow Near-IR Bandpass Filter | 835-845nm | |
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| BN850 | Narrow Near-IR Bandpass Filter | 840-865nm | |
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| BN880 |
Narrow Near-IR Bandpass Filter |
855-890nm | |
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| BN940 | Narrow Near-IR Bandpass Filter | 928-955nm | |
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Bi Series - Narrow Interference Bandwidth | |||
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Model # |
Description |
Range |
StablEDGE |
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| Bi405 | Violet Interference Bandpass Filter | 400-415nm | |
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| (Limited) Violet Interference Bandpass Filter | 425-455nm | |
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| Bi450 | Blue Interference Bandpass | 445-465nm | |
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| Bi518 | (Limited) Light Green Interference Bandpass Filter | 510-525nm | |
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| Bi520 | Light Green Interference Bandpass | 515-525nm | |
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| Bi550 | Green Interference Bandpass Filter | 535-558nm | |
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| Bi632 | Light Red Interference Bandpass Filter | 625-640nm | |
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| Bi650 | Red Interference Bandpass Filter | 643-665nm | |
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| Bi660 | Dark Red Interference Bandpass Filter | 650-665nm | |
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| Bi685 | Dark Red Interference Bandpass Filter | 675-692nm | |
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| Bi725 |
Red Edge Bandpass Filter |
717-732nm | |
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| Bi780 | (Limited) Near-IR Interference Bandpass Filter | 765-795nm | |
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| Bi808 | Near-IR Interference Bandpass Filter | 798-820nm | |
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| Bi830 | (Limited) Near-IR Interference Bandpass Filter | 810-850nm | |
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| Bi850 | Near-IR Interference Bandpass Filter | 845-860nm | |
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| Bi880 | (Limited) Near-IR Interference Bandpass Filter | 870-890nm | |
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| Bi905 | Near-IR Interference Bandpass Filter |
895-915nm |
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| Bi1300 | Short-Wave Infrared Bandpass Filter | 1290-1310nm | |
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| Bi1450 | Short-Wave Infrared Bandpass Filter | 1440-1460nm | |
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| Bi1550 | Short-Wave Infrared Bandpass Filter | 1540-1560nm | |
Multi Bandpass Filters
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DB Series - Dual Bandpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| DB395/870 | Dual Bandpass Absorptive Visible + NIR | 375-425nm, 745-970nm | |
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| DB475/850 | Dual Bandpass Blue + 850nm NIR | 460-490nm, 830-870nm | |
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| DB550/850 | Dual Bandpass Green + 850nm NIR | 535-565nm, 830-870nm | |
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| DB660/850 | Dual Bandpass Red + 850nm NIR | 645-675nm, 830-870nm | |
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| DB735 | Dual Bandpass Filter Visible + 735nm NIR | 405-645nm, 725-755nm | |
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| DB850 | Dual Bandpass Filter Visible + 850nm NIR | 405-645nm, 835-875nm | |
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| DB940 | Dual Bandpass Filter Visible + 940nm NIR | 405-650nm, 925-965nm | |
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TB Series - Triple Bandpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| TB475/550/850 | Triple Bandpass Blue+Green+850nm NIR | 468-483nm, 543-558nm, 835-865nm | |
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| TB550/660/850 | Triple Bandpass Green+Red+850nm NIR | 543-558nm, 653-668nm, 835-865nm | |
Longpass Filters
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LP Series - Lens Protection | |||
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Model # |
Description |
Range |
StablEDGE |
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| LP170 | Fused Silica Protective Window | 200-2300nm | |
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| LP171 | Fused Silica Multi-Layer A/R Coated Protective Window | 200-2300nm | |
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| LP190 | Sapphire Protective Window | 250-2300nm | |
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| LP285 | Borofloat Heat Resistant VIS-NIR A/R Protective Window |
350-1100nm |
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| LP286 | Borofloat® Oleophobic A/R Coated Protective Window | 350-1100nm | |
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| LP330 | Glass Protective Window | 350-1100nm | |
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| LP340 | A/R Glass Protective Window | 350-800nm | |
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| LP341 | Oleophobic A/R Coating Protective Window | 365-1100nm | |
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| LP345 | Precision Multi-Layer A/R Coated Glass Protective Window | 350-800nm | |
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| LP390 | UV Absorbing Protective Window | 410-1100nm | |
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| LP415 | UV Block A/R Protective Window | 415-1100nm | |
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LP Series - Longpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| LP470 | Light Yellow Longpass Filter | 480-1100nm | |
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| LP500 | Yellow Longpass Filter | 510-1100nm | |
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| LP515 | Yellow-Orange Longpass Filter | 520-1100nm | |
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| LP530 | Orange Longpass Filter | 545-1100nm | |
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| LP550 | Orange Longpass Filter | 560-1100nm | |
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| LP580 | Red-Orange Longpass Filter | 585-1100nm | |
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| LP590 | Red Longpass Filter | 605-1100nm | |
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| LP610 | Red Longpass Filter | 620-1100nm | |
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| LP630 | Red Longpass Filter | 645-1100nm | |
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| LP645 | Dark Red Longpass Filter | 650-1100nm | |
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| LP665 | Dark Red Longpass Filter | 680-1100nm | |
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| LP695 | Near-IR Longpass Filter | 715-1100nm | |
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| LP715 | Near-IR Longpass Filter | 730-1100nm | |
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| LP780 | Near-IR Longpass Filter | 800-1100nm | |
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| LP800 | Near-IR Longpass Filter |
820-1100nm |
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| LP815 | Near-IR Longpass Filter | 825-1100nm | |
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| LP830 | Near-IR Longpass Filter | 845-1100nm | |
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| LP850 | Near-IR Longpass Filter | 870-1100nm | |
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| LP900 | (Limited) Near-IR Longpass | 910-1100nm | |
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| LP920 | Short-Wave Infrared Longpass Filter | 930-2300nm | |
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| LP1000 | Short-Wave Infrared Longpass Filter | 1010-2300nm | |
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| LP1070 | Short-Wave Infrared Longpass Filter | 1100-2300nm | |
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| LP1475 | Short-Wave Infrared Longpass Filter | 1490-2300nm | |
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| LP1475A | Short-Wave Infrared Longpass Filter / Extended VIS Block | 1490-2300nm | |
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| LP1850 | Short-Wave Infrared Longpass Filter | 1900-12,000nm | |
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Shortpass/NIR cut Filters
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SP - VIS Pass | |||
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Model # |
Description |
Range |
StablEDGE |
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| SP510 | Blue Shortpass Filter | 340-500nm | |
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| SP570 | Blue-Green Shortpass Filter | 410-560nm | |
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| SP585 | Cyan Shortpass Filter | 395-575nm | |
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| NF550 | Magenta Dichroic Shortpass Filter (Green Block) | 395-475nm, 605-700nm | |
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SP Series - VIS Pass/NIR Block | |||
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Model # |
Description |
Range |
StablEDGE |
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| SP625 | Blue-Orange Shortpass Filter | 425-620nm | |
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| SP635 | Absorptive Visible Shortpass/Near-IR Block Filter | 380-585nm | |
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| SP644 | Near-IR/MId-Red Dichroic Block Shortpass Filter | 395-638nm | |
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| SP645 | Near-IR/Mid-Red Dichroic Block Shortpass Filter | 400-640nm | |
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| SP650 | Near-IR/Mid-Red Dichroic Block Shortpass Filter | 400-640nm | |
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| SP675 | Near-IR/Deep Red Dichroic Block Shortpass Filter | 420-660nm | |
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| SP700 | Near-IR/UV Block-Visible Shortpass Filter | 405-690nm | |
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| SP701 | Extended Hot Mirror/Reflects up to 1550nm | 410-690nm | |
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| SP705 | Near-IR/Deep Red Absorptive Block Shortpass Filter |
370-630nm |
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| SP730 | Near-IR/Colorless Dichroic Block Shortpass Filter | 400-710nm | |
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| SP785 | Modified Near-IR Dichroic Block Shortpass Filter | 425-770nm | |
Neutral Density Filters
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ND Series - VIS | |||
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Model # |
Description |
Range |
StablEDGE |
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| ND030 | Neutral Density Filter - Absorptive 50% Transmission | 425-675nm | |
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| ND060 | Neutral Density Filter - Absorptive 25% Transmission | 425-675nm | |
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| ND090 | Neutral Density Filter - Absorptive 12.5% Transmission | 425-675nm | |
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| ND120 | Neutral Density Filter - Absorptive 6.25% Transmission | 425-675nm | |
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| ND200 | Neutral Density Filter - Absorptive 1.0% Transmission | 425-675nm | |
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| ND300 | Neutral Density Filter - Absorptive 0.1% Transmission | 425-675nm | |
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| ND400 | Neutral Density Filter - Absorptive 0.01% Transmission | 425-675nm | |
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Ni Series - VIS/SWIR | |||
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Model # |
Description |
Range |
StablEDGE |
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| Ni030 | Neutral Density Filter - Low Reflectivity 50% Transmission | 400-2000nm | |
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| Neutral Density Filter - Low Reflectivity 25% Transmission | 400-2000nm | |
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| Ni090 | Neutral Density Filter - Low Reflectivity 12.5% Transmission | 400-2000nm | |
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| Ni120 | Neutral Density Filter - Low Reflectivity 6.25% Transmission | 400-2000nm | |
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| Ni200 | Neutral Density Filter - Reflective 1% Transmission |
400-2000nm |
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Polarizing Filters
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Polarizing Film | |||
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Model # |
Description |
Range |
StablEDGE |
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| PS007 | High Contrast Linear Polarizer Film .007" thk | 400-700nm | |
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| PSA007 | High Contrast Linear Polarizing Film .007" thk Self Adhesive | 400-700nm | |
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| PS010 | High Contrast Linear Polarizer Film .010" thk | 400-700nm | |
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| PS030 | Ultra High Contrast Linear Polarizer Film .030" thk | 400-700nm | |
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| PS1000 | VIS/SWIR Wire Grid Linear Polarizer Film | 400-2000nm | |
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| PSA1000 | VIS/SWIR Wire Grid Linear Polarizer Film with Adhesive Back | 400-2000nm | |
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| HT025 | High Temperature Linear Polarizing Film .025" | 400-700nm | |
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| HT008 | High Temperature Linear Polarizing Film .008" thk | 400-700nm | |
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| HTA008 | High Temperature Linear Polarizing Film .008" thk Self Adhesive | 400-700nm | |
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| PG1000 | VIS/SWIR Wire Grid Linear Polarizer Unmounted Filter | 400-2000nm | |
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| Pi005 | (Limited) VIS/NIR Diffuse Reflective Linear Polarizer Film .005" thk | 450-1065nm | |
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Polarizing Filters | |||
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Model # |
Description |
Range |
StablEDGE |
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| PR032 | Linear Polarizer | 400-700nm | |
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| PR120 | Ultra High Contrast Linear Polarizer | 400-700nm | |
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| PR1000 | VIS/SWIR Wire Grid Linear Polarizer Mounted Filter | 400-2000nm | |
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| PC052 | Circular Polarizer | 400-700nm | |
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| Pi031 | (Limited) VIS/NIR Wire Grid Linear Polarizer, High Extinction | 400-2000nm | |
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| Pi035 | (Limited) VIS/NIR Wire Grid Linear Polarizer, High Transmission | 400-2000nm | |
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| PG120 | High Temperature Ultra High Contrast Glass Linear Polarizer Filter 2.5mm thk |
400-700nm |
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Protective Filters
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AC Series - Acrylic Longpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| AC370 | A/R Acrylic Protective Window | 380-850nm | |
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| AC380 | A/R Acrylic Protective Window | 450-850nm | |
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| AC405 | UV Block Acrylic Protective Window | 415-1100nm | |
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LP Series - Lens Protection | |||
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Model # |
Description |
Range |
StablEDGE |
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| LP170 | Fused Silica Protective Window | 200-2300nm | |
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| LP171 | Fused Silica Multi-Layer A/R Coated Protective Window | 200-2300nm | |
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| LP190 | Sapphire Protective Window | 250-2300nm | |
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| LP285 | Borofloat Heat Resistant VIS-NIR A/R Protective Window |
350-1100nm |
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| LP286 | Borofloat® Oleophobic A/R Coated Protective Window | 350-1100nm | |
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| LP330 | Glass Protective Window | 350-1100nm | |
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| LP340 | A/R Glass Protective Window | 350-800nm | |
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| LP341 | Oleophobic A/R Coating Protective Window | 365-1100nm | |
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| LP345 | Precision Multi-Layer A/R Coated Glass Protective Window | 350-800nm | |
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| LP390 | UV Absorbing Protective Window | 410-1100nm | |
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| LP415 | UV Block A/R Protective Window | 415-1100nm | |
Acrylic Filters
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AB Series - Acrylic Bandpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| AB555 | Acrylic Absorptive Near-IR/UV-Block Visible Bandpass Filter | 470-645nm | |
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AC Series - Acrylic Longpass | |||
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Model # |
Description |
Range |
StablEDGE |
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| AC370 | A/R Acrylic Protective Window | 380-850nm | |
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| AC380 | A/R Acrylic Protective Window | 450-850nm | |
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| AC405 | UV Block Acrylic Protective Window | 415-1100nm | |
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| AC685 | Acrylic NIR Longpass Filter | 710-1100nm | |
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| AC760 | Acrylic NIR Longpass Filter | 780-1100nm | |
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| AC800 | Acrylic Near-IR Longpass | 815-1100nm | |
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| AC850 | Acrylic Near-IR Longpass | 880-1100nm | |
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| AC900 | Acrylic Short-Wave Infrared Longpass Filter | 930-1100nm | |
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| AC915 | Acrylic Short-Wave Infrared Longpass Filter | 960-1650nm; 1750-1890nm; 1925-2090nm | |
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Light Balancing Filters
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LA Series | LB Series | FL Series | |||
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Model # |
Description |
Range |
StablEDGE |
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| LA080 | Light Balancing Filter (Minus Blue) | 400-700nm | |
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| LA120 | Light Balancing Filter (Minus Blue) | 400-700nm | |
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| LB080 | Light Balancing Filter (Minus Red) | 400-700nm | |
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| LB120 | Light Balancing Filter (Minus Red) | 400-700nm | |
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| FL550 | Light Balancing Filter (Minus Green) | 400-700nm | |
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Sizes, Ordering and Installation Tutorial Videos | |
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Threaded Mounts |
Slip Mounts |
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