Ultraviolet absorbing, fixed tint lenses

Details Ultraviolet absorbing, fixed tint lenses Ultraviolet absorbing, fixed tint lenses

1994-03-25

1995-06-06

Ben, Loha

Optical: systems and elements

Having significant infrared or ultraviolet property

Having ultraviolet absorbing or shielding property

501 65, 501 66, 501 72, 501905, G02B 522, C03C 3089, C03C 408

Patent

active

054227550

ABSTRACT:
A transparent, ultraviolet-absorbing, fixed tint glass that is particularly useful in an ophthalmic lens and has a composition, expressed in weight percent on an oxide basis, consisting essentially of

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patent: 5256607 (1993-10-01), Kerko et al.
patent: 5268335 (1993-12-01), Kerko et al.
patent: 5288668 (1994-02-01), Netter

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