Optical magnifier apparatus

Details Optical magnifier apparatus Optical magnifier apparatus

1991-08-28

1992-12-01

Arnold, Bruce Y.

Optical: systems and elements

Lens

With viewed object or viewed field illumination

359808, 359810, G02B 2702, G02B 702

Patent

active

051684055

ABSTRACT:
A magnifying assembly of the type employing a lens surrounded by a plastic or metal holding is placed in a light diffuser, which light diffuser is an annular member having an open top which is associated with a peripheral flange upon which the magnifying lens rests. The member has a bottom opening which is associated with an annular curved flange which is abraded so as to uniformly diffuse light over the surface of a document to be read whereby the area enclosed by the bottom opening of the annual member is uniformly illuminated by a light source.

REFERENCES:
patent: 1784168 (1930-12-01), Bander
patent: 2087081 (1937-07-01), Bock
patent: 2905054 (1959-09-01), Logan
patent: 4206978 (1980-06-01), Leopoldi
patent: 4567123 (1986-01-01), Ohtaka et al.
patent: 4763986 (1988-08-01), Sego
patent: 4859032 (1989-08-01), Feinbloom

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