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:
Mar. 14, 2006
Filed:
Sep. 11, 2002
Nobufumi Mori, Kaisei-machi, JP;
Takeharu Tani, Kaisei-machi, JP;
Nobufumi Mori, Kaisei-machi, JP;
Takeharu Tani, Kaisei-machi, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
A sensor comprising a light source for emitting a light beam, and a measuring chip. The measuring chip includes a dielectric block transparent to the light beam, a thin film layer formed on the dielectric block, and a liquid-sample holding mechanism for holding a liquid sample. The sensor also comprises an optical system for making the light beam enter the dielectric block at an angle of incidence so that a total internal reflection condition is satisfied at an interface between the dielectric block and the thin film layer. The sensor further comprises a photodetector for detecting the intensity of the light beam totally reflected at the interface, and a measuring section for measuring a state of attenuated total reflection, based on the result of detection obtained by the photodetector. The irradiation energy of the light beam at the interface is 100 mJ/mmor less.