Method of making protective optical components

Details Method of making protective optical components Method of making protective optical components

1975-10-28

1976-12-21

Whitby, Edward G.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351177, 156 731, 264 1, 264 88, 428436, G02C 706, G02C 702

Patent

active

039985318

ABSTRACT:
A method of making opthalmic lenses is disclosed comprising the steps of forming at least a major body portion of a first lens body from a transparent plastic resinous material having an index of refraction greater than that of crown glass, rough shaping the first lens body portion to provide the lens configuration, selecting first and second thin plano glass shields having the respective shapes to form the different sides of the main body portion, shaping the first lens body portion between the shields by means of pressure and bonding each of the shields to the respective sides of the first lens portion.

REFERENCES:
patent: 2361589 (1944-10-01), Bennett et al.
patent: 2453665 (1948-11-01), Kropa
patent: 3396214 (1968-08-01), Crandon

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