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:
Dec. 29, 1987
Filed:
Apr. 02, 1986
Applicant:
Inventor:
Yuzuru Doi, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250227 ; 1283031 ; 356 731 ;
Abstract
An apertured reflection plate obliquely oriented with respect to a fiber optical axis allows light to be introduced through the aperture to a condenser lens for introduction to the fiber. Light reflected from the exit face of the fiber will come out of the entrance end face, be spread by the lens and be reflected by the outer regions of the reflection plate to a light detecting element. In response to an abnormal detection signal, the laser can be disabled.