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:
Jan. 12, 2016
Filed:
Oct. 18, 2010
Takahiko Yamamuro, Tokyo, JP;
Shigeki Harada, Tokyo, JP;
Takahiko Yamamuro, Tokyo, JP;
Shigeki Harada, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A switching power source for driving a light emitting element, a pulse-drive switching element connected in parallel to the light emitting element, a photodetector for detecting an intensity of an output light output from the light emitting element, a current detecting element for detecting a current flowing from the switching power source, and an operation processing unit that controls an operation of the switching power source by performing a feedback loop operation based on a detection result from the photodetector and a feedback loop operation based on a detection result from the current detecting element are provided to stabilize an emission waveform even when the light emitting element is subjected to a pulsed emission.