Biconvex Lenses (BCC)
- Bi-concave lenses, Negative magnification
- Focusing or optical imaging
- Focal Length: f = - R / 2 (n-1)
Bi-concave lenses are useful for a wide range of beam expansion or negative imaging applications. These lenses are manufactured from BK7A or UV Fused Silica. These bi-concave lenses may be combined with other lenses to form complex imaging systems. Lenses are supplied uncoated. Anti-reflection coatings are available. Please contact the Lambda’s sales team for more coating information.
| Material: | BK7A or UV Grade Fused Silica |
| Surface Flatness: | <λ / 10 @ 633 nm |
| Surface Quality: | <10/5 (both sides) |
| Centration Error: | < 3 arc min |
| Focal Length Tolerance: | < Typical ± 0.5% |
| Diameter Tolerance: | < + 0.00 / - 0.20 mm |
| Thickness Tolerance: | < ± 0.25 mm |
| Clear Aperture: | > 85% of diameter |
