초록 ▼

A focus detection apparatus including an image signal storage type sensor having a plurality of pixels and a storage time control circuit for controlling an intensity level of the sensor, wherein the storage time of an image signal in the sensor is controlled such that the image signal has an optima

A focus detection apparatus including an image signal storage type sensor having a plurality of pixels and a storage time control circuit for controlling an intensity level of the sensor, wherein the storage time of an image signal in the sensor is controlled such that the image signal has an optimal level, and focus detection is performed on the basis of the image signal whose storage time is controlled. A pixel output range used for focus detection and a sensor area used for storage time control are changed on the basis of the focus detection result.

대표청구항 ▼

A focus detection apparatus comprising: (a) a sensor section, having a plurality of pixels, for receiving light incident through an optical system and storing an image signal corresponding to the received light; (b) a storage time control circuit for controlling storage time of an image signal on th

A focus detection apparatus comprising: (a) a sensor section, having a plurality of pixels, for receiving light incident through an optical system and storing an image signal corresponding to the received light; (b) a storage time control circuit for controlling storage time of an image signal on the basis of an output from said sensor section such that a stored image signal has a predetermined level; (c) a focus detector for detecting a focus state on the basis of outputs from the pixels of said sensor section; and (d) a sensor section switching circuit for determining an operation range of said sensor section in accordance with a detection operation result of said focus detector, and for allowing the focus state detection operation of said focus detector and storage time control on the basis of the determined operation range.