Plano Concave Lens – BK7A & UV Grade Fused Silica (PCC)

- UV transmitting Fused Silica & BK7 for Visible Applications
- Anti-reflection coatings for UV & Visible wavelengths
- Concave side can be used as a reflector coating substrate
- Focal Length: f = -R / (n-1)
- n: refractive index
- R: radius curvature
Plano-concave lenses are useful for a wide range of applications. These lenses are manufactured from UV transmitting Fused Silica & BK7A. The lenses are supplied uncoated. Anti-reflection coatings are available. Please contact the Lambda’s sales team for more coating information.
Material: |
UV Fused Silica or Bk7A |
Surface Flatness: |
< λ / 10 @ 633 nm |
Surface Quality: |
<10/5 (both sides) |
Centration Error: |
< 3 arc min |
Radius of Curvature Tolerance: |
< ± 0.5% |
Diameter Tolerance: |
< + 0.00 / – 0.20 mm |
Thickness Tolerance: |
< ± 0.25 mm |
Clear Aperture: |
> 85% of diameter |
Plano Concave Lens – BK7A & UV Grade Fused Silica (PCC)