| 摘要 |
<p>In the multi point range finding device according to this invention, the photosensitive means 11 for detecting the light reflected from the subject (3) incudes the position sensitive detectors (PSDs) (20a to 20c) which are disposed at positions and intervals corresponding to plural light-irradiating sources (4a to 4c), and the semiconductor resistance elements (21a to 21c), each of the PSDs (20a to 20c) and each of the semiconductor resistance elements (21a to 21c) are connected in series to each other, and a set of the PSDs (20a to 20c) as well as a set of the semiconductor resistance elements (21a to 21c) are connected in parallel with one another. The photoelectric currents generated in the PSDs (20a to 20c) are output through common output electrodes E1 and E2. With this structure, a compact multipoint range finding device having high precision can be produced in low cost. <IMAGE></p> |
