Material: Bk7, Fused Silica, Sapphire, Germanium, Silicon, MgF2
Specifications
| Material |
Bk7, (other material upon request) |
| Focal Length Tolerance |
2% |
| Fringes |
1-5 |
| Fringes Irregularity |
0.2-0.5 |
| Diameter Tolerance |
0/-0.15 mm |
| Center Thickness(Tc) Tolerance |
0/-0.15 mm |
| Centration |
3 arc minutes |
| Clear Aperture |
90% of diameter |
| Surface Quality: |
40-20 scratch and dig |
| Coating |
Single-layer MgF2 AR Coated |
Product List
| Product No. |
Diameter (mm)
|
Focal Length (mm)
|
R (mm)
|
Center Thickness Tc (mm)
|
Edge Thickness T (mm)
|
| LPX101 |
10.0
|
25.4
|
12.912
|
2.5
|
1.49
|
| LPX102 |
10.0
|
31.5
|
16.27
|
2.3
|
1.51
|
| LPX103 |
10.0
|
40.0
|
20.65
|
2.1
|
1.49
|
| LPX104 |
10.0
|
63.0
|
32.51
|
1.9
|
1.51
|
| LPX251 |
25.4
|
25.4
|
13.112
|
11.16
|
2.00
|
| LPX252 |
25.4
|
40.0
|
20.65
|
6.21
|
2.00
|
| LPX253 |
25.4
|
63.0
|
32.51
|
4.0
|
1.50
|
| LPX254 |
25.4
|
160.0
|
82.60
|
2.95
|
2.0
|
| LPX255 |
25.4
|
500.0
|
258.20
|
2.30
|
2.0
|
| LPX256 |
25.4
|
1000.0
|
516.4
|
2.15
|
2.0
|
Note: special material and size are available
upon request.