Refractive index | N-BK7 - 1.517 UVFS - 1.453 S-LAH64 - 1.788 |
Design wavelength | 780 nm |
Surface quality | 40-20 scratch & dig (uncoated) |
Clear aperture | >90% of diameter |
Diameter tolerance | +0.0, -0.05 mm |
Bevel | 0.3 mm max @ 45° |
Center thickness tolerance | ≤0.05 mm |
EFL tolerance | ≤0.1% |
Asphere figure error P-V | ±1 µm (<0.6 µm available on request) |
Surface form deviation RMS | ≤0.5 µm |
Centration | <3 arc min |
EKSMA Optics Aspheric Lenses
60.56 kB |
Aspherical lenses are designed to reduce spherical aberration. Complex multi-lens systems designed for compensation of spherical aberration can often be replaced with a single aspheric lense. We offer ex-stock delivery of CNC polished precision plano-convex aspherical lenses made of N-BK7, high refractive index N-LAH64 glass or UV fused silica.
We can produce aspherical lenses of custom design using your drawings or specifications in our CNC lens polishing facility.