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:
Jul. 09, 1991
Filed:
Sep. 08, 1989
Applicant:
Inventor:
Masahiko Kanda, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356 40 ; 350 961 ; 356 731 ;
Abstract
In a fiber optical probe for measuring or sensing a reflectance spectrum, an illuminating light supplying optical fiber (1) and a light receiving optical fiber (2) are coupled in parallel to form a fiber bundle (3). A lens (4) is provided on sensing end surfaces of both types of fibers of the fiber bundle. The fiber bundle is inserted in a heat shrinkable polyethylene tube and the tube is shrunken by heat to form a coating jacket (6). The coating jacket extends beyond the end of the fiber bundle to cover the periphery of the lens, so that the lens is fixed to the fiber bundle.