Dual purpose sunglass lens having gold appearance and method of

Details Dual purpose sunglass lens having gold appearance and method of Dual purpose sunglass lens having gold appearance and method of

1987-04-06

1989-02-07

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

350354, 351177, 427166, G02C 710, G02B 523

Patent

active

048027553

ABSTRACT:
A method of manufacturing a dual purpose sunglass lens having a gold appearance, as well as the lens itself, is described wherein a photochromic lens is coated on its front and rear surfaces with a titanium monoxide material. An antireflection substance is overlyed onto the titanium monoxide deposited on the rear surface. The sunglass lens has a transmittance of approximately 10% at 20.degree. C. and a transmittance of approximately 5% at 0.degree. C. in bright sunlight.

REFERENCES:
patent: 3460960 (1969-08-01), Francel et al.
patent: 3516720 (1970-06-01), Mauer
patent: 3936579 (1976-02-01), Ogasawara et al.

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