| 摘要 |
PROBLEM TO BE SOLVED: To increase measuring points in horizontal direction without reducing measurable distance by photographing a subject irradiated with a plurality of line lights, obtaining the distance data from the positions of line lights detected from the image and integrating them. SOLUTION: Laser light from a laser source 1 is split in a plurality of line lights with an optical system, the emission of the light source 1 is turned on and off by a laser driver 2 synchronizing with the driving of the rotation mirror 3, the line lights reflected with the rotation mirror 3 are projected to the subject and the subject is photographed with each camera 5a to 5h. The line lights from the photographed image are detected with light detectors 7a to 7h, the distances are calculated with the line lights detected with distance calculators 8a to 8h and are integrated to a distance data at the view point of a color camera 6 in a distance integrator 9. By this, distance measurement can be done for a plurality of line lights without using a half mirror and the like so that distance measurement having increased measuring points in horizontal direction can be done without reducing the measurable distance. |
