Subminiature imaging optical system

Details Subminiature imaging optical system Subminiature imaging optical system

2007-07-19

2008-11-25

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S717000, C359S796000, C359S797000

Reexamination Certificate

active

07457053

ABSTRACT:
A subminiature imaging optical system includes a first lens including a first lens part having a convex object-side surface, a second lens part having an object-side surface in contact with an image-side surface of the first lens part, and a third lens part having an object-side surface in contact with an image-side surface of the second lens part and a concave image-side surface, about the optical axis; and a second lens including a fourth lens part having an object-side surface with a convex center and a concave peripheral portion about the optical axis, a fifth lens part having an object-side surface in contact with an image-side surface of the fourth lens part, and a sixth lens part having an object-side surface in contact with an image-side surface of the fifth lens part, and an image-side surface with a concave center and a convex peripheral portion about the optical axis.

REFERENCES:
patent: 2003/0193605 (2003-10-01), Yamaguchi
patent: WO 2004/027880 (2004-04-01), None
patent: WO 2005/073778 (2005-08-01), None

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