Basic Info.

Product Description

We supply achromatic lens. achromatic lens is an achromatic consists of a positive low-index crown glass lens element cemented to a negative high-index flint glass lens element. specification of our achromatic lens as follow: *material:bk7 and zf2(or according to your request) *dia.:+0/-0.05 *center thickness tolerance:+/-0.1 *surface quality: 60-40 scrath/dig *surface figure:0.5-0.2 *centration < 3arc min *chamfer:0.1-0.25*45 degrees *design wavelength:486.1mm,587.6mm,656.3mm (the parameter is demision of nomal lens,so specification will be changed according to different demision and material)