OCL4 series double concave lens
1. Material: K9 optical glass or fused silica
2. Design Wavelength: 587.6nm
3. Diameter Tolerance: +0.0/-0.1mm
4. Center Thickness Tolerance: ±0.2mm
5. Surface Figure: <λ/4@632.8nm
6. Focal Length Tolerance: ±2%
7. Centration: ＜3 arc min
8. Bevel：0.2mm×45°
- description
- parameters
|
Model |
Diameter |
Focal Length |
Back focal length |
R1= -R2(mm) |
Center thickness |
Edge thickness |
|
OCL4-010-010 |
10.0 |
-10.0 |
-10.480 |
-10.58 |
1.50 |
4.01 |
|
OCL4-012-012 |
12.5 |
-12.5 |
-12.480 |
-12.64 |
1.50 |
4.81 |
|
OCL4-025-025 |
25.0 |
-25.0 |
-25.66 |
-26.16 |
2.00 |
8.36 |
|
OCL4-040-040 |
40.0 |
-40.0 |
-40.82 |
-41.74 |
2.50 |
12.71 |
|
OCL4-050-050 |
50.0 |
-50.0 |
-50.99 |
-52.15 |
3.00 |
15.77 |
PS： Φ- Diameter，R1- Radius，Tc- Center thickness，Te- Edge thickness，f- Focal Length，fb- Back focal length
