Plan-Concave Lens
Specification:
| Material | BK7 or Fused Silica |
| Design Wavelength | 546.1 nm |
| Design Index | |
|
BK7 |
1.5183 ± 0.0005 |
| Fused Silica | 1.46008±0.00005 |
| Diameter Tolerance | +0.00, -0.15 mm |
| Thickness Tolerance | ±0.2 mm |
| Paraxial Focal Length | ±2% |
| Centration | <3 arc minutes |
| Clear Aperture | >85% |
| Surface Irregularity | λ/4@632.8 nm |
| Surface Quality | 60-40 scratch and dig |
| Protective Bevel | 0.25 mm x 45° |
BK7 Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
TPE201 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
|
TPE202 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
|
TPE203 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
|
TPE204 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
|
TPE205 |
-200.0 |
25.4 |
103.66 |
2.0 |
2.7 |
-201.3 |
|
TPE206 |
-500.0 |
25.4 |
259.15 |
2.0 |
2.3 |
-501.3 |
|
TPE207 |
-1000.0 |
25.4 |
518.3 |
2.0 |
2.2 |
-1001.3 |
Note: Other material, size and coating are available upon request.
Fused Silica Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
TPE301 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
|
TPE302 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
|
TPE303 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
|
TPE304 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
Note: Other material, size and coating are available upon request.
