Frequently Asked Questions

The optimal wavelength range for the coated achromatic doublet lenses is 400-700 nm for VIS coated lenses and 700-1050 nm for NIR coated lenses.

All types of materials are available to design the optimal achromats for the unmounted achromatic doublet lenses.

The surface quality of the lenses is 60-40 scratch & dig.

The compound lens system forms an image free from chromatic aberration and significantly reduces coma and chromatic aberration.

The standard specifications for the unmounted achromatic doublet lenses include dimensions tolerance of +0.0, −0.15 mm, focal length tolerance of ±3%, centration of <3 arc minutes, clear aperture of >90%, chamfer of 0.25 mm @ 45°, surface figure of λ/4 @ 632.8 nm, and surface quality of 60–40 scratch & dig.

You May Also Like