| 摘要 |
PROBLEM TO BE SOLVED: To measure, at high speed, distance information of an object within a measuring space, for example, as to whether the object is separated by a specified distance from a measuring device. SOLUTION: Projectors 1L, 1R project pulse lights to the interior of a measuring space so that irradiation lights L11-L13 and L21-L23 cross each other and a pulse interval of reflected lights from the intersection points is made to time intervals corresponding to the distance to the intersection points. Imaging device 2 detects the reflected lights from the object within the measuring space to pick up the image of the object for multiple times. Synchronous detector part 33A detects a time-series pixel signal having the pulse interval corresponding to the distance to the intersection points, as a measuring object, from among the time-series pixel signal output from each pixel in multiple images. COPYRIGHT: (C)2009,JPO&INPIT
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