Television – Camera – system and detail – Optics
Reexamination Certificate
2007-07-13
2010-11-16
Ometz, David L (Department: 2622)
Television
Camera, system and detail
Optics
C348S345000, C348S348000, C348S349000, C348S353000, C348S354000, C396S121000, C396S139000, C396S140000
Reexamination Certificate
active
07834929
ABSTRACT:
An imaging apparatus includes an imaging unit configured to photoelectrically convert light of an object image formed by an imaging optical system to generate a signal, a first detection unit configured to detect a focusing state of the imaging optical system based on the signal generated by the imaging unit, a sensor configured to generate a signal different from the signal generated by the imaging unit without using the imaging optical system, and a second detection unit configured to detect an in-focus position of the imaging optical system based on the signal generated by the sensor. The sensor is located such that an amount of overlap between a detection range of the first detection unit and a detection range of the second detection unit at a first object distance is equal to an amount of overlap between those at a second object distance that is close to an infinite distance side compared to the first object distance.
REFERENCES:
patent: 5848301 (1998-12-01), Nonaka
patent: 5974272 (1999-10-01), Kiesow et al.
patent: 6222996 (2001-04-01), Nonaka
patent: 6522393 (2003-02-01), Higashino
patent: 2001-290072 (2001-10-01), None
patent: 2002-258147 (2002-09-01), None
patent: 2005-189533 (2005-07-01), None
patent: 2005-308770 (2005-11-01), None
patent: 2006-072384 (2006-03-01), None
patent: 2006-119222 (2006-05-01), None
Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Le Quang V
Ometz David L
LandOfFree
Imaging apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Imaging apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4219566