Method of forming contoured optical layers on glass elements

Details Method of forming contoured optical layers on glass elements Method of forming contoured optical layers on glass elements

1982-08-26

1984-02-21

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156634, 156656, 156664, 156245, 156247, 1562737, 1562755, 156289, 156344, 264 17, 428336, 428417, B29C 1900, B44C 122, B32B 3100, C03C 1500

Patent

active

044328320

ABSTRACT:
A method for forming an optical layer having an aspheric surface on a given surface area of a glass optical element to change the optical performance characteristics of the glass element. A cavity having a shape complementary to that of the aspheric surface is first formed in a tool and afterwards plated with at least one metal release layer preferably of silver. The cavity is then filled with a UV curable epoxy and then brought into registration with the optical element. The epoxy is then hardened by exposure of the epoxy to ultraviolet radiation. Tool and element are then separated and the metal release layer, which adheres to the epoxy, is then chemically removed.

REFERENCES:
patent: 2404314 (1946-07-01), Rogers
patent: 2406361 (1946-08-01), Fairbank et al.
patent: 3971841 (1976-07-01), Rubinstein

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