Plastic spectacle lens and method for making

Details Plastic spectacle lens and method for making Plastic spectacle lens and method for making

1992-04-20

1994-12-13

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351177, G02C 702

Patent

active

053733320

ABSTRACT:
A plastic spectacle lens includes a protuberance portion intergrally formed with a peripheral portion of one of the concave and convex sides thereof for indicating information thereof. Indication of the class and the power of the lens in the protuberance portion facilitates determination of specifications of the lens.

REFERENCES:
patent: 4619504 (1986-10-01), Daniels et al.
Horne, D. F.; Spectacle Lens Technology; Crane Russak and Company, Inc; New York; 1978; p. 118.

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