Patent ID: 7750970
Filing Date: 2010-07-06
Classification: G02B,G03B

Abstract:
1. A distance-measuring device capable of executing distance measurement at a plurality of points in a photography screen, comprising: two optical systems having a parallax therebetween; an image pick up element formed on a semiconductor substrate for picking up two images formed by the optical systems; a sensor array having pixel rows, a detection pixel pitch of the sensor array being able to be switched between at least fine and rough pitches; specifying means for setting the detection pixel pitch of the sensor array at the rough pitch to determine an outline of an image existing in a detection field of the sensor array so as to specify an object, a distance to which should be measured; and means for setting the detection pixel pitch of the sensor array at the fine pitch to determine the distance to the object specified by the specifying means, wherein the detection pixel pitch of the sensor array is set by summing signals output from adjacent pixels.