Optical lens system

Details Optical lens system Optical lens system

2007-12-03

2009-02-17

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S715000

Reexamination Certificate

active

07492532

ABSTRACT:
An optical lens system includes a first lens having positive lens power; a second lens having negative lens power; a third lens having positive lens power; and a fourth lens having negative lens power, wherein the first through fourth lenses are sequentially arranged from a subject.

REFERENCES:
patent: 6950246 (2005-09-01), Amanai
patent: 2006-126494 (2006-05-01), None
patent: 2004-60621 (2004-07-01), None
patent: 2006-70814 (2006-06-01), None

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