Optical Lenses
2020-05-26
Delfa has thousands of radius tooling for making any kinds of general spherical lenses with different sizes, radius and materials, such as plane-convex lenses, plane-concave lenses, biconvex lenses, biconcave lenses, meniscus lenses, ect. So our customers may benefit a lot from our big tools stocks, which may be saving time and cost for prototype and small amount orders.
Material: Various of flint glass, UV fused silica, IR fused silica, CaF2, MgF2, ZnSe, Si, Ge and other material. Delfa also accept custom lenses and serve for the processing with customer’s materials.
Specifications:
Diameter | 0.6mm—800mm |
Diameter tolerance | Up to +0/-0.005mm |
Radius | 2mm--∞ |
Center thickness tolerance | Up to +0/-0.01mm |
Surface figure | Up to λ/10 @632.8nm |
Paraxial focal length | Up to +/-1% |
Centration | Up to 5 arc seconds |
Surface quality | Up to 10-5 Scratch & Digs |
Clear Aperture | Up to 100% of the diameter |
Bevel | <0.2mmx45° |
Coating | According to your request |
** Other sizes and special shapes are available upon your requests.
