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:
Jun. 05, 2012
Filed:
Apr. 16, 2009
Seiichiro Kinugasa, Tokyo, JP;
Atsushi Kato, Tokyo, JP;
Shunji Ichida, Tokyo, JP;
Yamatake Corporation, Tokyo, JP;
Abstract
A fluorescent light temperature sensor for producing a temperature signal from a fluorescent light of an optically stimulated fluorescent material is provided with: an LED for projecting light onto the fluorescent material; a driving circuit for driving the light projecting element; a photo diode for receiving the fluorescent light that is emitted from the fluorescent material; a signal processing circuit for producing the temperature signal from the output signal from the photo diode; and an APC circuit for controlling the driving of the driving circuit so as to maintain a uniform light projecting intensity from the LED based on the output signal of the photo diode.