| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small and high precision three dimensional ranging device which can ensure scanning angle of 180 degrees. Ž<P>SOLUTION: This ranging device includes: scanning mechanism which rotates a deflecting mirror 9 obliquely-positioned to level surface around its perpendicular axial center P1; light projector 3 for emitting measured light along light axis L1 located around the axial center and slanted by a certain degree of θ to the axial center; a light collection optical system 6 for collecting reflections to the measured light emitted from the light projector and deviation-reflected by the deflecting mirror 9; a single light-receiving section 5 for detecting the collected reflections; a drive controller which drives the light projector so that one measured light may be emitted at different timing from each mutually-different position along circumferential direction of the axial center P1; and a distance calculating section which calculates angle of the measuring object from scanning angle of the measured light emitted from the scanning mechanism, while calculating distance to the above measuring object from delay time of the reflection to the measured light scanned from the light projector towards measuring target space by the scanning mechanism. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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