Method of and device for measuring position coordinates

Details Method of and device for measuring position coordinates Method of and device for measuring position coordinates

1994-05-16

1996-01-02

Pham, Hoa Q.

Optics: measuring and testing

By polarized light examination

With light attenuation

356387, 356386, G01B 1110

Patent

active

054813611

ABSTRACT:
Two or three-dimensional position coordinates of a plurality of objects are measured without contact by installing at least one set of light emitting and receiving optical systems on opposite sides of the plurality of objects. During measurement, the light emitting optical system emits a laser beam towards the plurality of objects from a plurality of different directions, and light boundaries generated by the plurality of objects are detected by the light receiving optical system. A computer and a processor are provided to compute two or three-dimensional position coordinates of and distances between centers of the plurality of objects from outputs of the light receiving optical system. Where three-dimensional position coordinates of the plurality of objects are required, one of the object and the light emitting and receiving optical systems is moved vertically relative to the other.

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