Optical lens

Details Optical lens Optical lens

1991-05-13

1994-03-29

Sugarman, Scott J.

Optical: systems and elements

Diffraction

From grating

359565, 359570, 359576, 359718, G02B 2744, G02B 518, G02B 1318

Patent

active

052990621

ABSTRACT:
The present invention involves a corrective optical lens construction and process for its manufacture. The lens construction consists of a glass lens having a corrective layer consisting of a blazed grating of annuli whose angles are formed to correct aberrations in the glass lens. In a first embodiment, the corrective layer is formed on one convex surface of the lens. In a second embodiment, the corrective layer is formed on a second convex surface of the lens. Embodiments also describe alternative lens shapes and corrective layer construction. A method of manufacturing the lens is also disclosed in which the resin corrective layer is molded to the glass lens.

REFERENCES:
patent: 4210391 (1980-07-01), Cohen
patent: 4338005 (1982-07-01), Cohen
patent: 4340283 (1982-07-01), Cohen
patent: 4738516 (1988-04-01), Verhoeven et al.
patent: 4838645 (1989-06-01), Machler et al.
patent: 4842969 (1989-06-01), Kawatsuki et al.
patent: 4986641 (1991-01-01), Braat

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