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Optical constants of BARBERINI - Sun Protection
D6420: CH - Braun 6420
(0.43583 – 0.65627)
Complex refractive index (
Derived optical constants
Sun Protection Glass; Colour: brown; Application: medium tinted sunglare filter with high UV- and IR- absorption filter category 2 acc. to DIN EN 1836 (for τ v > 18% filter category 3) References
Barberini D6420 glass specifications, 2010-08
Barberini GmbH is a German branch of Barberini S.p.A., the Italian company specializing in ophthalmic materials. Barberini GmbH has been formed after Barberini acquired the ophthalmic division of Schott AG in 2010.
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