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BK7 Biconvex Lenses SKU: 111-0440E
• Have positive focal lengths • Converge incident light • Form both real and virtual images • Minimize spherical aberration as well as cancel coma and distortion at unit conjugate ratio Biconvex lenses are all symmetrical, having equal radii on both sides. They are recommended…
Variant specifications
| Specification | Value |
|---|---|
| Diameter | 38.1 mm |
| ROC | 725.4 mm |
| Focal Length | 700 mm |
| CT | 5 mm |
| ET | 4.5 mm |
Shared product specifications
These specifications apply across the BK7 Biconvex Lenses product family.
| Material | BK7 |
| Surface quality | 40-20 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of the diameter |
| Diameter tolerance | +0.00, -0.12 mm |
| Thickness tolerance | ±0.2 mm |
| Surface irregularity | λ / 8 @ 633 nm |
| Concentricity | 3 arcmin |
| Paraxial focal length | ±2% @ 546 nm |
Variant files
Technical drawings, models and data files for SKU 111-0440E.
Product brochures
Shared documentation for the complete product family.