H-K9L Wafers (BK7 Equivalent from CDGM)

H-K9L (a common BK7 equivalent) is a high quality optical glass used in lenses and other optical components where the additional benefits of Fused Silica are not required. It is a relatively hard material with extremely low bubble and inclusion content. H-K9L has a low refractive index (≈1.52), low dispersion, and provides excellent transmittance through-out the visible and near infrared spectra, down to 350 nm in the ultraviolet.

Following is a matrix of standard H-K9L wafer specifications which can be produced and shipped quickly – most often within Four weeks.  Our wafers are inspected and packed in a Class 100 Clean Room and certified to the listed specifications.  If you don’t find a product meeting your needs, please contact us and provide your required specifications.  Where appropriate, please use an existing Item Number and describe required exceptions.

Please note that there is a $300 and Ten Piece MINIMUM Order Quantity

H-K9L Material Spec Sheet

Item NumberDiameter (mm)Thickness (mm)QualityPrice EachVolume PricingMore InfoMin
QTY
QtyTotal
25 - 4950 - 99100 +
CGS15402000.780/50$52.90$48.80$45.30$42.3010
CGS15412000.760/40$57.80$53.30$49.50$46.2010
CGS15422000.740/20$66.90$61.80$57.30$53.5010
CGS15432000.720/10$78.50$72.40$67.30$62.8010
CGS15442001.180/50$62.80$58.00$53.80$50.3010
CGS15452001.160/40$67.70$62.50$58.00$54.2010
CGS15462001.140/20$77.80$71.80$66.70$62.2010
CGS15472001.120/10$90.90$83.90$77.90$72.7010

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