Diffractive contact lens in relief

Details Diffractive contact lens in relief Diffractive contact lens in relief

1989-11-03

1992-04-14

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

264 17, 264 21, 264 24, 351161, 351177, 359570, 359571, 359743, G02C 704, B29D 1100, G02B 2742, G02B 308

Patent

active

051042126

ABSTRACT:
A diffractive contact lens in relief includes a smoothing layer (50) of optically transparent material having a smooth outside surface (51) and placed over the optical surface (16) in relief so as to immerse the relief.

REFERENCES:
patent: 4055378 (1977-10-01), Feneberg et al.
patent: 4070105 (1978-01-01), Marzouk
patent: 4146306 (1979-03-01), Wallach
patent: 4310391 (1980-07-01), Cohen
patent: 4338005 (1982-07-01), Cohen
patent: 4340283 (1982-07-01), Cohen
patent: 4417790 (1983-11-01), Dawson et al.

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