Plastic optical viewer

Details Plastic optical viewer Plastic optical viewer

2008-05-08

2010-11-23

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S362000, C359S647000, C359S661000, C359S744000

Reexamination Certificate

active

07839581

ABSTRACT:
An optical viewer is disclosed which incorporates plastic lenses which reduce the weight and cost of the optical viewer. In accordance with an important aspect of the invention, the optical design of the viewer is configured to compensate for the inferior optical characteristics of the plastic lenses to provide an optical viewer with comparable performance relative to optical viewers with glass lenses.

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patent: 6667832 (2003-12-01), Caplan
patent: 6704142 (2004-03-01), Caplan
patent: RE39162 (2006-07-01), Caplan

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