IMAGING APPARATUS AND DARK CHARGE MEASURING METHOD

摘要

An imaging apparatus including: a solid-state imaging device including pixels arranged in rows and columns, the device including: an OB pixel unit including rows of light-shielding pixels among the pixels; and a valid pixel unit including pixels allowing light from the subject to enter among the pixels; an exposure control unit which exposes the second pixel unit; a read line selecting unit which sequentially selects one or more pixel rows of the OB pixel unit, at different timings during exposure of the valid pixel unit, and causes each of pixels of the one or more pixel rows to output a pixel signal; and a dark charge measuring unit which measures the quantity of dark charge due to dark current of the device using current ones of pixel signals, each time pixel signals are output from the OB pixel unit through the selection by the read line selecting unit.

主权项

1. An imaging apparatus which images a subject, the imaging apparatus comprising:
a solid-state imaging device in which a plurality of pixels are arranged in rows and columns, the solid-state imaging device including: a first pixel unit in which a plurality of rows of pixels shielded from light among the plurality of pixels are arranged; and a second pixel unit in which pixels allowing light from the subject to enter among the plurality of pixels are arranged; an exposure control unit configured to expose the second pixel unit; a row selecting unit configured to sequentially select one or more pixel rows of the first pixel unit, at a plurality of timings different from each other during exposure of the second pixel unit, and cause each of pixels of the one or more pixel rows selected to output a pixel signal; and a dark charge measuring unit configured to measure a quantity of dark charge due to dark current of the solid-state imaging device using current ones of pixel signals, each time pixel signals are output from the first pixel unit through the selection by the row selecting unit.