Optical glass achromatic doublet lens

 

Achromatic doublet lens are designed to eliminate chromatic and spherical aberrations inherent in singlet lenses. When used on-axis, an achromatic lens focuses an parallel input beam to a perfect "point", limited only by the effects of diffraction. This performance can be achieved over a broadband of wavelength. Achromatic lenses can be used to collimate and focus laser beams. They can also be used for high-quality imaging on-axis. However, the off-axis performance is significantly worse than the on-axis performance. If your application requires good optical performance off-axis as well as on-axis, multi-element lenses such as our digital imaging lenses are recommended.

Parameters of achromatic doublet lens

 

1.Material:bk7,b270,glass,fused silica,sapphire,znse,caf2,ge,etc.

2.Dia.2mm to 600mm

3.Surace quality:10/5 to 80/50

4.flatness;1/4lambda (general standard)

5.CA:85%

6.Tol.:+/-0.1(general standard)

7.Centration:30 seconds

8.Focal Tol.: +/-1%

9.Coating:AR coating,Al,coating,Golded Coating,sliver coating,etc.