- Wavelength Range of 1.2 - 7μm
- Low Density and Dispersion
- Any Focal Lengths for customer's applications
- DLC/AR coating for 3-4 micron (MWIR)
Silicon positive meniscus lenses
Used with the shorter radius facing the longer conjugate, these Silicon meniscus lenses act as focusing element with less aberrations than plano-convex Silicon lenses.
| Silicon positive meniscus lenses |
| Cat# |
Dia,in |
Dia,mm |
EFL, mm |
| Si-pm-12.7-25 |
0.5 |
12.7 |
25.4 |
| Si-pm-12.7-50 |
0.5 |
12.7 |
50.8 |
| Si-pm-25.4-50 |
1.0 |
25.4 |
50.8 |
| Si-pm-25.4-63 |
1.0 |
25.4 |
63.5 |
| Si-pm-25.4-76 |
1.0 |
25.4 |
75.0 |
| Si-pm-25.4-100 |
1.0 |
25.4 |
100 |
| Si-pm-25.4-127 |
1.0 |
25.4 |
127 |
| Si-pm-38.1-50 |
1.5 |
38.1 |
50.8 |
| Si-pm-38.1-63 |
1.5 |
38.1 |
63.5 |
| Si-pm-38.1-76 |
1.5 |
38.1 |
75.0 |
| Si-pm-38.1-100 |
1.5 |
38.1 |
100 |
| Si-pm-38.1-127 |
1.5 |
38.1 |
127 |
| Si-pm-38.1-150 |
1.5 |
38.1 |
150 |
| Si-pm-38.1-200 |
1.5 |
38.1 |
200 |
| Si-pm-50.8-76 |
2.0 |
50.8 |
75 |
| Si-pm-50.8-100 |
2.0 |
50.8 |
100 |
| Si-pm-50.8-127 |
2.0 |
50.8 |
127 |
| Si-pm-50.8-150 |
2.0 |
50.8 |
150 |
| Si-pm-50.8-200 |
2.0 |
50.8 |
200 |
| Any other custom shape, size and focal length are available upon request. |
Custom Silicon meniscus lenses are available in any size and cofiguration.
| Standard Specifications |
| Material |
Silicon optical grade, p or n type |
| Dimensions |
± 0.00/-0.10mm |
| Thickness |
± 0.2mm |
| Focal length tolerance: |
+/-1% at 10.6microns |
| Surfaces |
60/40 |
| Edges |
Fine Ground |
| Surface irregularity |
≤3 Fringes |
| Centration |
3 Arc mins |
Please do not hesitate to contact us for pricing for any custom size and coatings requirements.
See Also: Germanium optics; ZnSe optics
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