Convex BK7 mirror blanks
These plano-convex BK7 mirror blanks are polished to λ / 10 surface accuracy with a laser grade finish on both sides. Select a coating appropriate to your application or contact us with your special coating requirements.
| Material: | BK7 grade A |
| Surface Flatness: | < λ / 10 @ 633 nm |
| Surface Quality: | <10/5 (both sides) |
| Centration Error: | < 3 arc min |
| FL (@633nm) Tolerance: | < ± 0.5% |
| Diameter Tolerance: | < + 0.00 / – 0.20 mm |
| Thickness Tolerance: | < ± 0.25 mm |
| Clear Aperture: | >85% of diameter |
| Material | BK7 Grade A |
|---|---|
| Diameter | 0.5" dia, 0.75" dia, 1.0" dia |
| Focal Length | 025mm @ 633nm, 030mm @ 633nm, 038mm @ 633nm, 050mm @ 633nm, 075mm @ 633nm, 100mm @ 633nm, 150mm @ 633nm, 200mm @ 633nm, 250mm @ 633nm, 300mm @ 633nm, 400mm @ 633nm, 500mm @ 633nm, 750mm @ 633nm, 1000mm @ 633nm |
Plano Concave Lens – BK7A & UV Grade Fused Silica (PCC) 
