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N-BK7 meniscus lens

The meniscus lenses are fabricated from RoHS-compliant BK7 glass. N-BK7 meniscus lenses have one concave and one convex surface. For this lens type, the two curvatures are chosen to minimize the spherical aberration at one laser wavelength, hence meniscus lenses are used to control a laser beam of the appropriate wavelength. We offer BK7 meniscus lenses without AR coating and with AR coating.

Custom Made Capabilities:

Material N-BK7 or H-K9L
Dia. tolerance +/-0.02mm
Thickness tolerance +/-0.02mm
Surface quality 60-40, 40-20 or better
Surface flatness Lambda/4 or better
Centering 1 arc min
Chamfer 01mm-0.3mm
Coating AR coated for visible wavelengths or other wavelength ranges
Certificate RoHs

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