Double-Convex 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 Double-Convex Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1=R2(mm) |
t c (mm) |
t e(mm) |
f b(mm) |
|
TDX101 |
8.0 |
6.0 |
7.7 |
3.2 |
2.0 |
6.9 |
|
TDX102 |
10.0 |
10.0 |
9.45 |
4.9 |
2.0 |
8.2 |
|
TDX103 |
20.0 |
12.7 |
20.01 |
4.0 |
2.0 |
18.6 |
|
TDX104 |
50.0 |
12.7 |
51.35 |
2.8 |
2.0 |
49.1 |
|
TDX105 |
75.0 |
12.7 |
77.3 |
2.6 |
2.0 |
74.1 |
|
TDX106 |
100.0 |
12.7 |
103.25 |
2.4 |
2.0 |
99.2 |
|
TDX107 |
25.4 |
20.0 |
25.265 |
6.1 |
2.0 |
23.3 |
|
TDX108 |
25.4 |
25.4 |
24.712 |
9.0 |
2.0 |
22.2 |
|
TDX109 |
50.0 |
25.4 |
50.92 |
5.2 |
2.0 |
48.3 |
Note: Other material, size and coating are available upon request.