The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 02, 1996

Filed:

May. 16, 1994
Applicant:
Inventors:

Naoto Yumiki, Hirakata, JP;

Hironori Honsho, Neyagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356375 ; 356387 ; 356386 ;
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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