Bk7 Meniscus Spherical Lenses

We are offering bk7 meniscus spherical lenses. bk7 meniscus spherical lenses size and coating of the lenses can be customized according to users’ needs specification material schott bk7 design wavelength 632.8nm focal length tolerance ±1% diameter tolerance +0/-0.1mm thickness tolerance ±0.1mm surface accuracy λ/4@632.8nm surface quality 40-20 centration 90% bevelling