Achromatic Lenses
2020-06-24
Achromatic lenses are the combination of positive and negative elements with different refractive indices. Delfa can serve these lenses with different material and focal length according to your requirements.
Specifications:
Diameter | 0.6mm—100mm |
Diameter tolerance | Up to +0/-0.01mm |
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 material are avaliable upon your request.
