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:
Aug. 04, 2009
Filed:
Aug. 21, 2007
Applicant:
George E. Matheson, North Vancouver, CA;
Inventor:
George E. Matheson, North Vancouver, CA;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/04 (2006.01); G01J 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a light source comprising one or more light-emitting elements, one or more photosensors and, a photosensor light guide, such as, for example, a substantially planar light guide. The photosensor light guide is generally configured to capture and guide some of the light emitted from the one or more light-emitting elements to one or more photosensors optically coupled thereto, the light sensed thereby being useable as a basis for controlling the respective outputs of the one or more light-emitting elements.