Bi-Concave lenses
Bi-Concave lenses have negative focal length and are diverging lenses. The optical performance of bi-concave lenses is closely related to the refractive index of the material. Different curvature radi..
Specifications
Bi-Concave lenses have negative focal length and are diverging lenses. The optical performance of bi-concave lenses is closely related to the refractive index of the material. Different curvature radii affect the divergence degree of light beams. Bi-concave lenses always form erect, reduced virtual images.
| Product Name | Bi-Concave Lens |
| Material | Fused Silica, Optical Glass |
| Diameter Tolerance | ±0.1mm, ±0.05mm |
| Center Thickness Tolerance | ±0.1mm, ±0.05mm |
| Centration Error | 1′-3′ |
| Surface Quality | 60/40-20/10 |
| Effective Aperture | ≥90% |
| Surface Figure | λ/4, λ/8 |
| Chamfer | <0.25mmX45° |
| Coating | Customizable |
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