Television – Camera – system and detail – Optics
Reexamination Certificate
2003-07-15
2008-10-14
Ye, Lin (Department: 2622)
Television
Camera, system and detail
Optics
C348S240100, C348S240300, C348S240990, C348S305000, C348S324000, C348S342000, C348S360000, C348S363000, C359S738000, C359S739000, C359S888000, C359S889000, C359S894000
Reexamination Certificate
active
07436449
ABSTRACT:
The invention relates to an electronic imaging system such a video camera or digital camera, whose thickness or size is reduced while performance degradation is reduced as much as possible. The system comprises a zoom lens system comprising a first G1, a second G2, a third G3and a fourth lens group G4and an aperture stop S, and an electronic image pickup device located on its image side I and covered with a cover glass CG. The image of a subject is formed on the photoreceptive surface of the electronic image pickup device for conversion into electric signals. The system satisfies the following conditions (1) and (2).in-line-formulae description="In-line Formulae" end="lead"?a≦4 μm (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?F>a (2)in-line-formulae description="In-line Formulae" end="tail"?Here a is the horizontal pixel pitch in μm of the electronic image pickup device and F is the F-number of the zoom lens system at its wide-angle end.
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Kenyon & Kenyon LLP
Olympus Corporation
Ye Lin
Yoder, III Chriss S
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