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Biconcave Lenses SKU: 114-1108E
• Have negative focal lengths diverge collimated incident light • Form only virtual images which are seen through the lens • Minimize spherical aberration, coma and distortion at unit conjugate ratio These lenses are symmetrical with equal radii on both sides. The…
Variant specifications
| Specification | Value |
|---|---|
| Material | UVFS |
| Diameter | 12.7 mm |
| CT | 2.8 mm |
| ET | 4 mm |
| ROC | -24.2 mm |
| Focal Length | -25 mm |
| Group | UVFS, Size: dia 12.7 mm |
Shared product specifications
These specifications apply across the Biconcave Lenses product family.
| Material | BK7, UV FS |
| 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: / BK7 / UV FS | ±2% @ 546 nm / ±2% @ 355 nm |
Variant files
Technical drawings, models and data files for SKU 114-1108E.
Product brochures
Shared documentation for the complete product family.