Biconcave N-BK7 lens

Custom N-BK7 lens with two polished concave surfaces

Material :  N-BK7  (our optical glass equivalents chart)

Process : precision optics manufacturing and thin layer deposition

Dimensions:  D24mm, thickness 8mm, radius of curvature 34mm & 199mm

Shape : round lens with both optical surface concave

Aspect : S&D 40/20

Centration : 5′

Optical treatment : AR treatment R<0.5% & 1310 nm

Usage : IR laser sensor lens

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