Zoom lens and image pickup device having the same

Optical: systems and elements – Lens – With variable magnification

Reexamination Certificate

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Details

C359S682000, C359S683000, C359S684000, C359S685000, C359S691000, C359S717000, C359S740000, C359S793000

Reexamination Certificate

active

08045275

ABSTRACT:
A compact wide-angle zoom lens and an image pickup device having the same. The zoom lens includes a first lens group having a negative refractive power and a second lens group having a positive refractive power in an order from an object side to an image side, performs zooming by varying a distance between the first and second lens groups, and performs focusing by using a first lens closest to the object side in the second lens group.

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patent: 6917477 (2005-07-01), Takatsuki
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patent: 6989941 (2006-01-01), Tomioka
patent: 7050240 (2006-05-01), Tomioka
patent: 7280284 (2007-10-01), Ishii
patent: 7359125 (2008-04-01), Kimura et al.
patent: 7652827 (2010-01-01), Taguchi et al.
patent: 2003/0179466 (2003-09-01), Takatsuki

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