Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryo Yamasaki0
Date of Patent
February 1, 2011
0Patent Application Number
114782430
Date Filed
June 28, 2006
0Patent Primary Examiner
Patent abstract
A focus detecting apparatus includes a splitter for splitting a light from an image pickup lens to form at least a pair of images, a photoelectric conversion element for photoelectrically converting at least the pair of images, the focus detecting apparatus detecting a focusing status of the image pickup lens based on a signal from the photoelectric conversion element, and a light blocking mask for blocking the light from entering the photoelectric conversion element, the light blocking mask having a curve shape in a moving direction of the image that varies according to an image height.
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