Optical device

Details Optical device Optical device

1992-05-26

1996-01-09

Shafer, Ricky D.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

351 57, 351 59, 351155, 351158, 359481, G02C 708, G02C 902, G02B 2500

Patent

active

054833019

ABSTRACT:
An optical device which is worn by a person which can be quickly adapted for use in magnifying objects distant from the person or as eyeglasses which allows a person to view objects according to their normal size and dimension. The optical device can be readily adapted for use by individuals requiring different corrective lens to compensate for poor eyesight.

REFERENCES:
patent: 2459021 (1949-01-01), Frommer
patent: 2978955 (1961-04-01), Frommer
patent: 3945712 (1976-03-01), Crock et al.
patent: 4637696 (1987-01-01), Wilkins
patent: 4807985 (1989-02-01), Feinbloom
patent: 4929075 (1990-05-01), Eliakim

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