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These plano-concave lenses are manufactured CVD grown Zinc Selenide. They have a low absorption in the infra-red. Negative focusing Zinc Selenide lenses are perfect for thermal imaging and Carbon Dioxide laser focusing applications.
We supply uncoated but a range of anti-reflection coatings can be applied as well for CO2 laser applications.
 Standard Specifications:
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Optical Material:
Diameter Tolerance:
Design Wavelength:
Design Index:
Paraxial Focal Length:
Centration:
Clear Aperture:
Surface Quality:
Wavefront Distortion:
Bevel:
Coating: |
Laser Grade CVD Zinc Selenide
+0.0, -0.15mm
10.6um
2.4028 at 10.6um
±2%
3 arc minutes
>85%
40-20 scratch and dig
lambda/2 at 632.8nm
<0.25mm X 45°
available upon request |
Standard Zinc Selenide Plano-Concave Lenses:
Dia(mm) |
f(mm) |
R1(mm) |
tc(mm) |
te(mm) |
Product Number |
15.20 |
-38.10 |
53.45 |
2.9 |
2.0 |
UQT-PLCAZ0401 |
20.00 |
-50.80 |
71.26 |
2.9 |
2.0 |
UQT-PLCAZ0402 |
20.00 |
-63.50 |
89.08 |
2.9 |
2.0 |
UQT-PLCAZ0403 |
25.40 |
-38.10 |
53.45 |
4.5 |
3.0 |
UQT-PLCAZ0404 |
25.40 |
-63.50 |
89.08 |
3.9 |
3.0 |
UQT-PLCAZ0405 |
25.40 |
-76.20 |
107.93 |
3.8 |
3.0 |
UQT-PLCAZ0406 |
28.00 |
-50.80 |
71.26 |
4.4 |
3.0 |
UQT-PLCAZ0407 |
28.00 |
-63.50 |
89.08 |
4.1 |
3.0 |
UQT-PLCAZ0408 |
28.00 |
-127.00 |
178.15 |
3.5 |
3.0 |
UQT-PLCAZ0409 |
38.10 |
-63.50 |
89.08 |
8.0 |
6.0 |
UQT-PLCAZ0410 |
38.10 |
-76.20 |
107.93 |
7.7 |
6.0 |
UQT-PLCAZ0411 |
38.10 |
-127.00 |
178.15 |
7.0 |
6.0 |
UQT-PLCAZ0412 |
38.10 |
-190.50 |
267.23 |
6.7 |
6.0 |
UQT-PLCAZ0413 |
50.80 |
-127.00 |
178.15 |
9.8 |
8.0 |
UQT-PLCAZ0414 |
50.80 |
-190.50 |
267.23 |
9.2 |
8.0 |
UQT-PLCAZ0415 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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ZnSe reacts readily with acidic substances, generating toxic selenium oxide gas. Never clean with acidic washing solutions. |
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Note that ZnSe is classified as a toxic material by law. Transactions involving ZnSe or products incorporating ZnSe require a certificate of transfer. |
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Disposal of ZnSe optics as general waste is prohibited. Please notify us if you need to dispose of such products. (Ultiquest Technolgies products only.) |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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