Patent ID: 6973262

Claim:
A wide-angle field distance-measuring camera having a distance-measuring device, the distance-measuring device comprising: a pair of reception lenses for forming an image of a subject on a pair of line sensors, wherein the pair of line sensors convert the subject image formed by the reception lenses into electric signals in accordance with an intensity of light; integral control means for performing integral control of the pair of line sensors; calculation means for calculating data corresponding to a camera-to-subject distance based on subject image data generated from the pair of line sensors; monitor means for monitoring subject-brightness information used in the integral control; monitor control means for setting a monitor area and outputting monitor data; and low-brightness-area determination means for determining a low brightness area included in output data of the line sensors in consideration of an influence of one of (i) a deterioration in performance of the reception lenses and (ii) a degradation in sensitivity of the sensors, wherein the output data of the line sensors is obtained by integration.