Patent ID: 8913115

Claim:
An imaging device, comprising: a CMOS image sensor configured to have a plurality of photoelectric conversion elements corresponding to a plurality of lines, with start of an accumulation period of electric charge by the plural photoelectric conversion elements being different depending on each of the lines, and read the accumulated electric charge to repeatedly output the read electric charge as an image signal; a light source configured to irradiate an imaging range of the CMOS image sensor; a detector configured to detect a motion vector of an image imaged by the CMOS image sensor; a comparator configured to compare the motion vector detected by the detector with a threshold value; and a controller configured to control the light source so as to cause the light source to irradiate the imaging range within a span during which the accumulation periods of the plural photoelectric conversion elements overlap with one another, and wherein the controller sets a first irradiation time of the light source when the value of the motion vector detected by the detector is smaller than the threshold value, and sets a second irradiation time of the light source shorter than the first irradiation time when the value of the motion vector detected by the detector is equal to or larger than the threshold value.