Spectacle lens

Details Spectacle lens Spectacle lens

1998-04-08

2000-06-06

Epps, Georgia

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351 41, G02C 702

Patent

active

060709804

ABSTRACT:
Disclosed is a spectacle lens which includes a diffractive structure for producing diffraction to correct transverse chromatic aberration caused by a macroscopic surface shape of the spectacle lens. The diffractive structure is composed of a series of rings formed integral with the spectacle lens.

REFERENCES:
patent: 4210391 (1980-07-01), Cohen
patent: 4655565 (1987-04-01), Freeman
patent: 5148314 (1992-09-01), Chen
patent: 5384606 (1995-01-01), Koch et al.
patent: 5446588 (1995-08-01), Missig et al.

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