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:
Oct. 16, 1990
Filed:
Jun. 09, 1989
Takashi Koizumi, Kanagawa, JP;
Tadashi Uekusa, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An optical density measuring system has a light projecting system which includes a light source and an optical fiber bundle which transmits light emitted from the light source to the specimen. The optical fiber bundle consists of first and second portions which are connected by an optical fiber connector. The connector includes a first optical fiber plug which holds the light emanating end face of the first portion of the bundle, a second optical fiber plug which holds the light incident end face of the second portion of the bundle, a plug holder which can be mated with both the first and second optical fiber plugs in such a manner that the light emanating end face of the first portion and the light incident end face of the second portion are closely opposed to each other, and an optical filter which transmits only light having a selected wavelength and is mounted on the plug holder in a position in which the optical filter is interposed between the light emanating end face of the first portion and the light incident end face of the second portion.