The light sensing portion which light from the standard sphere detection device, the standard sphere position detection device, and

摘要

The standard sphere position detection device (200) the 1st image pickup element which the standard sphere detection device which is used (100), the laser illuminant (1), from this laser illuminant (1) light condensing, the standard sphere which is categorized to anterior focus position or the vicinity the light condensing lens which is irradiated to (6) (5), and this light condensing lens (5) is arranged in back focus position, standard sphere absorbing light, detects reflected light from (6) (8), the optical unit which it possesses (50) with, this optical unit (50) the datum point the drive section which it turns moves focusing on (14,15) with, reflected lightOn the basis of light absorbent position, in order particular reflected light the 1st image pickup element (8) to arrive in specified standard position O, the drive section (14,15) controlling, optical unit (50) the control section which it turns moves (60) with the empty it constitutes, it forms three dimensional coordinate measurement equipment this standard sphere position detection device (200) due to.