Method of producing aspherical optical elements

Details Method of producing aspherical optical elements Method of producing aspherical optical elements

1979-12-14

1982-03-16

Hoffman, James R.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

264 17, 427165, 427169, G02B 304, G02B 110

Patent

active

043199453

ABSTRACT:
A method of producing an aspherical optical element involves first forming a glass substrate with at least part of one surface having an irregular surface finish and an aspherical profile having a second order accuracy, which can be obtained by automatic tooling methods, and thereafter forming a polymeric material on such surface so as to form a surface making up differences between the aspherical parts of the substrate and a predetermined, desired aspherical profile, i.e. one of the first order of accuracy which can be obtained only by detailed and skilled hand work.

REFERENCES:
patent: 3873191 (1975-03-01), Veret et al.
patent: 3876734 (1975-04-01), Howden
patent: 3920327 (1975-11-01), Howden
patent: 3980399 (1976-09-01), Howden

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