Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1992-04-22
1993-07-06
Hellner, Mark
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 4, G01C 308
Patent
active
052258823
ABSTRACT:
A moving body measuring apparatus which can measure a distance and/or an azimuth angle to a moving body using a laser beam in a minimized measuring cycle with a simplified scanning mechanism under a minimized influence of a disturbance of the background light or the sunlight. Laser light is first shaped into a fan beam by expanding the same in a first direction by a fan beam shaping optical system. The fan beam is deflected in a second direction perpendicular to the first direction to scan by a uniaxial light scanning mechanism and is irradiated upon a target. Reflected light of the fan beam is deflected by the uniaxial light scanning mechanism and introduced into an optical detector by way of a light receiving optical system.
REFERENCES:
patent: 3687556 (1972-08-01), Price et al.
patent: 4477184 (1984-10-01), Endo
patent: 4948246 (1990-08-01), Shigematsu
patent: 4950075 (1990-08-01), Ichinose et al.
Hosokawa Tetsuo
Nakajima Kazumitsu
Hellner Mark
NEC Corporation
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