| 摘要 |
PROBLEM TO BE SOLVED: To obtain a small-sized distance-measuring apparatus by which a distance can be measured precisely with few errors even when a projected image lacks partly. SOLUTION: The reflected light of spot projected light from a projection means 104 is received by two sensor arrays 105, 106. Signals which are added by a ring CCD 113b and a ring CCD 114b are subjected difference calculation by turning on and off the spot projected light, and a distance up to an object to be measured is found on the basis of relative values of signals subjected to difference calculation on the sensor arrays 105, 106. The two sensor arrays 105, 106 constitute a baseline length, and the projection means 104 is arranged so as to be offset from the baseline length. |
