| 摘要 |
There is disclosed a focus detection device having a light receiving section in which charges are generated and accumulated based on quantities of received lights and a charge accumulating section in which the charges accumulated in the light receiving section are transferred and accumulated. The focus detection device starts the accumulation of the charge in the light receiving section, when the charge accumulating section retains a reset state, and the device cancels the reset state of the charge accumulating section at a predetermined timing before the charges accumulated in the light receiving section are transferred to the accumulating section Moreover/alternatively, a focus detection device using a plurality of photo sensors is disclosed. A phase of a reading signal of a part of the photo sensors is different from that of a reading signal of another part.
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