Biconvex Lenses
Biconvex lenses have positive focal lengths and form both real and virtual images. The most common biconvex lens is the symmetric-convex lens, which has an identical convex surface on both sides of the lens.
Biconvex Lenses
Specifications: |
 |
| Material |
BK7 grade A optical glass or Fused silica |
| Design Wavelength |
546.1nm |
| Design Index |
1.5183 ±0.0005 |
| Diameter Tolerance |
+0.0, -0.15mm |
| Paraxial Focal Length |
±2% |
| Centration Tolerance |
3 arc minutes |
| Clear Aperture |
>85% |
| Surface Figure |
λ/4 @ 632.8nm |
| Surface Quality |
60-40 Scratch and Dig |
| Bevel |
0.25 mm x 45° |
List of Product Tables
| Part No. |
Focal Length (mm) |
Diameter (mm) |
Material |
Description |
| XLB-001 |
10.0 |
5.0 |
BK7 |
Standard |
| XLB-002 |
10.0 |
8.0 |
BK7 |
Standard |
| XLB-003 |
10.0 |
6.0 |
Fused silica |
Standard |
| XLB-004 |
12.5 |
7.5 |
BK7 |
Standard |
| XLB-005 |
12.5 |
12.5 |
BK7 |
Standard |
| XLB-006 |
15.0 |
12.5 |
Fused silica |
Standard |
| XLB-007 |
20.0 |
12.5 |
BK7 |
Standard |
| XLB-008 |
25.391 |
12.5 |
Fused silica |
Standard |
| XLB-009 |
50.0 |
12.7 |
BK7 |
Standard |
| XLB-010 |
18.0 |
15.0 |
BK7 |
Standard |
| XLB-011 |
50.0 |
20.0 |
BK7 |
Standard |
| XLB-012 |
100.0 |
25.4 |
BK7 |
Standard |
| XLB-013 |
200.0 |
25.4 |
BK7 |
Standard |
| XLB-014 |
200.0 |
30.0 |
BK7 |
Standard |
| XLB-015 |
2000.0 |
42.0 |
BK7 |
Standard |
| XLB-016 |
250.0 |
50.0 |
BK7 |
Standard |
| XLB-017 |
250.0 |
50.8 |
Fused silica |
Standard |
| XLB-018 |
375.0 |
50.8 |
Fused silica |
Standard |
| XLB-019 |
200.0 |
100.0 |
BK7 |
Standard |
| XLB-020 |
1000.0 |
105.0 |
BK7 |
Standard |