	US 7,595,475 B2
	Image-pickup apparatus having a focus controller and an exposure controller
Hidenori Taniguchi, Zama (Japan)
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan)
Filed on Jul. 28, 2008, as Appl. No. 12/181,001.
Claims priority of application No. 2007-203141 (JP), filed on Aug. 03, 2007.
Prior Publication US 2009/0032678 A1, Feb. 05, 2009
Int. Cl. H01L 27/00 (2006.01)

U.S. Cl. 250—208.1 [250/201.4]

4 Claims

1. An image-pickup apparatus comprising:

a focus detector which generates focus detection information by using light from an image-pickup optical system;

a photometer which generates photometry information by using the light from the image-pickup optical system;

a focus controller which performs focus control; and

an exposure controller which performs exposure control,

wherein the photometer includes a first photoelectric conversion part and a second photoelectric conversion part which have different spectral sensitivity characteristics and are formed to at least partially overlap each other in a light entrance direction from the image-pickup optical system, the photometer generating the photometry information based on an output from the first photoelectric conversion part,

wherein the focus controller performs the focus control by using the focus detection information and focus correction information obtained based on the output from the first photoelectric conversion part and an output from the second photoelectric conversion part, and

wherein the exposure controller performs the exposure control by using the photometry information and exposure correction information obtained based on the output from the first photoelectric conversion part and the output from the second photoelectric conversion part.