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. 07, 2006
Filed:
Sep. 20, 2002
Applicants:
William S. Yerazunis, Acton, MA (US);
Dermot Diamond, Coolquoy, IE;
Paul H. Dietz, Hopkinton, MA (US);
Inventors:
William S. Yerazunis, Acton, MA (US);
Dermot Diamond, Coolquoy, IE;
Paul H. Dietz, Hopkinton, MA (US);
Assignee:
Mitsubishi Electric Research Labs, Inc., Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/78 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chemochromic sensor includes multiple bi-directional LEDs, each optically aligned with one or more test areas. Each LED is used as both a light emitter when driven in forward bias, and as a light detector when driven in reverse bias. By alternating the bias on the LEDs, multi-way light measurements of the test area can be obtained.