Variable-power optical system and electronic device using same

Details Variable-power optical system and electronic device using same Variable-power optical system and electronic device using same

2004-11-10

2009-06-02

Perkey, W. B. (Department: 2862)

Photography

Camera detail

C359S687000

Reexamination Certificate

active

07540671

ABSTRACT:
The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom optical system comprises a lens group having negative refracting power and a lens group having positive refracting power. At least one lens is formed by molding of a first lens blank (11) that provides a surface including at least an optical function surface after molding, and a second lens blank (12) that provides a surface other than said surface including at least an optical function surface after molding, wherein the first lens blank (11) and the second lens blank (12) are integrated into a one-piece lens (10).

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European Search Report of EP 04799705.1, dated May 2, 2007.

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