Optical imaging system

Details Optical imaging system Optical imaging system

2006-06-21

2008-12-16

Choi, William C (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

C359S723000, C359S771000

Reexamination Certificate

active

07466497

ABSTRACT:
An optical imaging system is provided comprising a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive or negative power; and a fourth lens group having a positive or negative power.

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patent: 2005-1027 (2002-01-01), None
Park, Young-Woo; Patent Application Publication No: US 2004/0136097 A1; Publication Date: Jul. 15, 2004; “Photographing Lens;” . . . .

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