- Circular cross-section cylindrical lenses
-
Line imaging
Focal Length: f = R/(n-1)
n: refractive index
R: radius curvature
These plano-concave cylindrical lenses are edged as circular shapes so they can easily be combined with other elements in an optical system. Lenses are supplied uncoated. Anti-reflection coatings are available. Please contact the Lambda’s sales teams for more coating information.
| Material: |
- UV
Fused Silica
- Bk7A
- UV grade CaF2
|
| Surface Flatness: |
- UV
Fused Silica & Bk7a: < λ / 10 @ 633 nm
- CaF2:<λ
/ 4 @ 633 nm
|
| Surface Quality: |
- UV
Fused Silica & Bk7a: <10/5
- CaF2:
<20/10
|
| Centration Error: |
< 3 arc min |
| Focal Length Tolerance: |
< ± 0.5% |
| Design
Focal length: |
- BK7A : 633nm
- UV grade Fused
Silica & CaF2 : 250nm
|
| Diameter Tolerance: |
< + 0.00 / - 0.20 mm |
| Thickness Tolerance: |
< ± 0.25 mm |
| Clear Aperture: |
>85% of central dimension |
|
|
|