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Gallium arsenide plano-concave lenses have a very low absorption in the infra-red. Nogtive focusing GaAs 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.
 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: |
Gallium arsenide
+0.0, -0.15mm
10.6um
4.0028 at 10.6um
±2%
3 arc minutes
>85%
60-40 scratch and dig
lambda/2 at 632.8nm
<0.25mm X 45°
available upon request |
Standard GaAs Plano-Concave Lenses:
Dia (mm) |
EFL (mm) |
R1 (mm) |
Tc (mm) |
Te (mm) |
Part Number |
25.4 |
-38.1 |
86.65 |
2.9 |
2.0 |
UQT-PLCAA0201 |
25.4 |
-50.8 |
115.53 |
2.7 |
2.0 |
UQT-PLCAA0202 |
25.4 |
-63.5 |
144.42 |
2.6 |
2.0 |
UQT-PLCAA0203 |
25.4 |
-76.2 |
173.30 |
2.5 |
2.0 |
UQT-PLCAA0204 |
38.1 |
-50.8 |
115.53 |
4.6 |
3.0 |
UQT-PLCAA0205 |
38.1 |
-63.5 |
144.42 |
4.3 |
3.0 |
UQT-PLCAA0206 |
38.1 |
-76.2 |
173.3 |
4.0 |
3.0 |
UQT-PLCAA0207 |
38.1 |
-127.0 |
288.83 |
3.6 |
3.0 |
UQT-PLCAA0208 |
38.1 |
-190.5 |
433.25 |
3.4 |
3.0 |
UQT-PLCAA0209 |
50.8 |
-127.0 |
288.83 |
7.1 |
6.0 |
UQT-PLCAA0210 |
50.8 |
-190.5 |
433.25 |
6.7 |
6.0 |
UQT-PLCAA0211 |
50.8 |
-254.0 |
577.67 |
6.5 |
6.0 |
UQT-PLCAA0212 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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