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• Uncoated or with AR Coatings Designed for a Variety
of IR Ranges
• Minimal Chromatic Aberration Due to Low Dispersion
• Ideal for Infrared Applications Requiring Rugged Optics
TECHSPEC® Germanium (Ge) Windows are available off-theshelf
its high index of refraction (around 4.0 from 2 - 14μm), an antireflection
for sufficient transmission in the region of interest.
TECHSPEC® Germanium (Ge) Windows
Diameter
Thickness
Stock No.
(mm)
(mm)
Uncoated
with three anti-reflection coating options: 3 - 5μm for midinfrared
applications, 3 - 12μm for broadband multi-spectral applications,
or 8 - 12μm for thermal imaging applications. Due to
coating is recommended on these germanium windows
Price – Uncoated Stock No.
3 - 5μm AR
Stock No.
3 - 12μm AR
Stock No.
8 - 12μm AR
Price – Coated
1-10 11-25 26+ 1-10 11-25 26+
10.0 1.5 #68-734 £110.50 £99.45
Call For OEM Quantity Pricing
#89-558 #62-643 #47-685 £157.25 £142.38
Germanium with 3-12μm AR Coating
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Germanium (Ge) Windows
Substrate: Germanium (Ge)
Density (g/cm3): 5.33
Knoop Hardness (kg/mm2): 780
Clear Aperture (%): 90
Dimensional Tolerance (mm): +0.0/-0.1
Thickness Tolerance (mm): ±0.1
Surface Quality: 60-40
Surface Flatness: l/10 @ 10.6μm
Parallelism (arcmin): <1
Coating (as noted): Ravg <3% @ 3 - 5μm
Ravg <5% @ 3 - 12μm
Ravg <3% @ 8 - 12μm
Zinc Selenide with 3-12μm AR Coating
0
2 3 4 5 6 7 8 9 10 11 12
Wavelength (μm)
Transmission (%)
Substrate: CVD Laser Grade ZnSe
Density (g/cm³): 5.27
Knoop Hardness (kg/mm²): 120
Clear Aperture (%): 90
Dimensional Tolerance (mm): +0.0/-0.1
Thickness Tolerance (mm): ±0.1
Surface Quality: 60-40
Surface Flatness: l/10 @ 10.6μm
Parallelism (arcmin): <3
Coating (as noted): 3 - 12μm AR, ≤5.0% per surface
8 - 12μm AR, ≤0.5% per surface
• Low Dispersion
• Available Uncoated or AR Coated
• Ideal for Thermal Imaging, FLIR, and Medical Systems
TECHSPEC® Zinc Selenide (ZnSe) Windows are ideal for a wide
variety of infrared applications including thermal imaging, FLIR,
and medical systems. This chemically vapor deposited material
has wide usage in high power CO2 laser systems because of its low
absorption coefficient and high resistance to thermal shock. Zinc
Selenide (ZnSe) is a relatively soft material that scratches easily and
it is not recommended in harsh environments because its Knoop
Hardness is only 120. When handling, apply uniform pressure and
wear Latex finger cots or gloves to prevent contamination.
TECHSPEC® Zinc Selenide (ZnSe) Windows
Diameter
Thickness
Stock No.
(mm)
(mm)
Uncoated
Price – Uncoated Stock No.
3 - 12μm AR
Stock No.
8 - 12μm AR
Price – Coated
1-10 11-25 26+ 1-10 11-25 26+
10.0 1.5 #68-490 £131.75 £118.58
Call For OEM Quantity Pricing
#47-936 #68-498 £178.50 £161.50
Call For OEM Quantity Pricing
12.5 1.0 #68-506 £140.25 £126.22 #68-511 #68-516 £187.00 £170.00
12.5 2.0 #68-491 £140.25 £126.22 #47-937 #68-499 £187.00 £170.00
12.7 1.0 #39-391 £140.25 £126.22 #39-405 #39-419 £187.00 £170.00
12.7 2.0 #39-392 £140.25 £126.22 #39-406 #39-420 £187.00 £170.00
20.0 2.0 #68-492 £221.00 £198.05 #63-210 #68-500 £267.75 £242.67
25.0 1.0 #68-507 £229.50 £205.70 #68-512 #68-517 £323.00 £290.70
25.0 2.0 #68-508 £229.50 £205.70 #68-513 #68-518 £323.00 £290.70
25.0 3.0 #68-493 £229.50 £205.70 #47-938 #68-501 £323.00 £291.55
25.0 5.0 #39-393 £229.50 £206.55 #39-407 #39-421 £323.00 £290.70
25.4 1.0 #39-394 £229.50 £206.55 #39-408 #39-424 £323.00 £290.70
25.4 2.0 #39-396 £229.50 £206.55 #39-409 #39-434 £323.00 £290.70
25.4 3.0 #39-397 £229.50 £206.55 #39-410 #39-436 £323.00 £290.70
25.4 5.0 #39-398 £229.50 £206.55 #39-411 #39-437 £323.00 £290.70
30.0 3.0 #68-494 £335.75 £301.32 #63-211 #68-502 £433.50 £388.45
40.0 4.0 #68-495 £425.00 £380.80 #63-212 #68-503 £522.75 £469.63
50.0 1.0 #68-509 £552.50 £497.25 #68-514 #68-519 £697.00 £628.15
50.0 2.0 #68-510 £552.50 £497.25 #68-515 #68-520 £697.00 £628.15
50.0 3.0 #68-496 £552.50 £497.25 #47-939 #68-504 £697.00 £628.15
50.0 5.0 #39-399 £552.50 £497.25 #39-412 #39-438 £697.00 £628.15
50.8 1.0 #39-400 £552.50 £497.25 #39-413 #39-440 £697.00 £628.15
50.8 2.0 #39-401 £552.50 £497.25 #39-414 #39-464 £697.00 £628.15
50.8 3.0 #39-402 £552.50 £497.25 #39-415 #39-465 £697.00 £628.15
50.8 5.0 #39-404 £552.50 £497.25 #39-416 #39-467 £697.00 £628.15
75.0 6.0 #68-497 £1,321.75 £1,189.58 #48-855 – £1,576.75 £1,419.08
Call For OEM Quantity Pricing
12.5 1.0 #83-341 £131.75 £119.42 #89-559 #83-347 #83-353 £178.50 £162.35
12.5 2.0 #68-735 £131.75 £119.42 #89-560 #62-644 #47-686 £178.50 £162.35
12.5 3.0 #83-342 £131.75 £119.42 #89-561 #83-348 #83-354 £178.50 £162.35
20.0 2.0 #68-736 £153.00 £139.40 #89-562 #64-377 #63-213 £204.00 £182.75
25.0 1.0 #83-343 £161.50 £147.05 #89-563 #83-349 #83-355 £255.00 £231.20
25.0 2.0 #83-344 £161.50 £147.05 #89-564 #83-350 #83-356 £255.00 £231.20
25.0 3.0 #68-737 £161.50 £147.05 #89-565 #62-645 #47-687 £255.00 £231.20
25.4 3.0 #11-862 £161.50 £147.05 #11-865 #11-868 #11-871 £255.00 £231.20
30.0 3.0 #68-738 £212.50 £191.25 #89-566 #64-378 #63-214 £306.00 £275.40
40.0 4.0 #68-739 £318.75 £286.88 #89-567 #64-379 #63-215 £416.50 £373.15
50.0 1.0 #83-345 £391.00 £350.20 #89-568 #83-351 #83-357 £531.25 £478.13
50.0 2.0 #83-346 £391.00 £350.20 #89-569 #83-352 #83-358 £531.25 £478.13
50.0 3.0 #68-740 £391.00 £350.20 #89-570 #62-646 #47-688 £531.25 £478.13
50.8 3.0 #11-863 £391.00 £350.20 #11-866 #11-869 #11-872 £531.25 £478.13
75.0 5.0 #68-741 £773.50 £696.15 #89-571 #64-380 #48-857 £947.75 £851.27
76.2 5.0 #11-864 £773.50 £696.15 #11-867 #11-870 #11-873 £947.75 £851.27
S P ECI A L
HANDLING
Zinc Selenide (ZnSe) Windows
Germanium with 8-12μm AR Coating
7.0 8.0 9.0 10.0 11.0 12.0
Wavelength (μm)
Transmisson (%)
90
80
70
60
50
40
2.0 4.0 6.0 8.0 10.0 12.0 14.0
Transmission (%)
Wavelength (μm)
/www.edmundoptics.co.uk
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