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. 07, 1993
Filed:
Oct. 09, 1992
Tatsumi Sato, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
An integrating sphere has two openings, at which light-receiving and light-emitting ends of an optical fiber sample are attached. A light-receiving opening is provided opposite one of these openings, and another light-receiving opening opposite from none of those other openings. A monochromatic light beam from a source such as a spectroscope is passed through a lens or the like to be made convergent and introduced into the integrating sphere through each of the light-receiving openings. The difference in the optical path length between the two measurements is entirely due to the presence or absence of the optical fiber sample, and the spectral transmissivity of the sample can be measured accurately.