N-BK7 Lenses
Description:
Core Optronics supplies the following N-BK7 Lenses:
- N-BK7 Plano Convex Lenses;
N-BK7 Double Convex Lenses;
N-BK7 Double Concave Lenses.
Specifications:
| Material | N-BK7 |
| Design Wavelength | 546.1nm |
| Design Index | 1.5183 ±0.0005 |
| Diameter Tolerance | +0.0, -0.15mm |
| Paraxial Focal Length Tolerance | ±2 |
| Centration | 3 arc minutes |
| Clear Aperture | >85% |
| Surface Figure: Power(N) | <3 |
| Irregularity(N) | <0.5 |
| Surface Quality | 60/40 scratch/dig |
| Bevel | 0.25 mm x 45° |
| Coating | upon customer’s request |