| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized and inexpensive photosensor and a three- dimensional shape measuring device capable of highly accurately measuring a distance to an object in a short time. SOLUTION: This photosensor is provided with two-dimensionally arrayed plural signal generation means 96 which is equipped with a photoelectric conversion part 90 for converting incident light to a signal current, a sampling part 91 for sampling the signal current in a prescribed cycle, a storage part 92 for storing signal charges corresponding to the sampled signal current and a discharge part 93 for discharging unwarted charges stored in the photoelectric conversion part and a parasitic capacitance formed at the periphery in the period in which the sampling part does not perform sampling, and also provided with a read means 97 for reading the signal charges stored in the storage part of the plural signal generation means. |
