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.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Aug. 28, 1989
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
25022711 ; 25022729 ;
Abstract
A fiber optical displacement sensor having a wider range of measurable distances and displacements. The fiber optical displacement sensor includes collimation device, attached to ends of projecting and receiving optical fibers, for collimating a projection beam to be emitted from an end of the projecting optical fiber facing toward a surface to be measured and a reflected beam to be received by an end of the receiving optical fiber facing toward the surface to be measured.