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:
Apr. 01, 2014
Filed:
Mar. 31, 2011
Applicant:
Gerald R. Wootton, Cambridge, CA;
Inventor:
Gerald R. Wootton, Cambridge, CA;
Assignee:
ATS Automation Tooling Systems Inc., Cambridge, Ontario, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 7/24 (2006.01); H01L 33/08 (2010.01);
U.S. Cl.
CPC ...
Abstract
A light generating system comprising: a plurality of solid state emitters (SSEs) and a stability control system for controlling the spectral stability of the SSEs. In a particular case, the stability control system may comprise: a power regulator to regulate power supplied to a sub-set of the plurality of SSEs; a constant current circuit connected to the power regulator to provide a constant current to the sub-set of SSEs; a current regulation set point connected to the constant current circuit; and a controller configured to set the regulation set point based on metrology relating to the state of the SSEs.