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. 24, 1987
Filed:
Oct. 15, 1985
Applicant:
Inventors:
Kenneth A Wickersheim, Menlo Park, CA (US);
Mei H Sun, Los Altos, CA (US);
Stanley O Heinemann, Irvine, CA (US);
Assignee:
Luxtron Corporation, Mountain View, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
374161 ; 374131 ; 374129 ; 2504581 ; 2504591 ;
Abstract
An optical temperature measurement technique that utilizes the decaying luminescent intensity characteristic of a sensor composed of a luminescent material that is excited to luminescence by a light pulse or other periodic or other intermittent source of radiation. The luminescent emissions of a preferred sensor exhibit an approximately exponential decay with time that is the average of a distribution of chemically reproducible crystallites and are repeatable with a high degree of accuracy regardless of excitation level or prior temperature history of the sensor.