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:
Aug. 21, 2001
Filed:
Oct. 04, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/145 ;
U.S. Cl.
CPC ...
G01N 2/145 ;
Abstract
A highly sensitive optical sensor in a simple structure for detecting a chemical substance dissolved or dispersed in water is provided. The optical sensor (,) comprises a detecting element (,) having a polymer thin film, a light source unit (,) for emitting light for irradiating the polymer thin film, and a photodetector (,) for detecting the intensity of light reflected from the polymer thin film. The detecting element (,), the light source unit (,), and the photo-detector (,) are integrally mounted in a housing. The polymer thin film is formed on a highly reflective substrate or an optically transparent substrate so as to interact with a chemical substance dissolved or dispersed in water flowing through a water channel (,).