Method and device for the noncontact optical measurement of path

Details Method and device for the noncontact optical measurement of path Method and device for the noncontact optical measurement of path

1989-05-22

1990-11-27

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

358107, G01C 300, G01C 500

Patent

active

049731521

ABSTRACT:
A method and a device for the non-contact optical measurement of paths uses light of a monochromatic coherent light source (1) to generate a light spot (7) on the object (6) to be measured, having a diffusely scattering surface. An optical system (14) is provided to image the light spot (7) on a position-determining image recorder (10). A device (5) for deflecting the light beam (2) emitted by the light source through a small angle or offset is provided in the beam path between the light source (1) and the object (6).

REFERENCES:
patent: 3773422 (1973-11-01), Stavis et al.
patent: 4011403 (1977-03-01), Epstein
patent: 4494874 (1985-01-01), DiMatteo et al.
patent: 4534650 (1985-08-01), Clerget et al.
patent: 4652749 (1987-03-01), Stern
patent: 4708483 (1987-11-01), Lorenz

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