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. 21, 2009
Filed:
Sep. 07, 2004
Gert W. Bruning, Sleepy Hollow, NY (US);
Gert W. Bruning, Sleepy Hollow, NY (US);
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A lamp assembly () employs a reflector () defining a light reflecting area (), and a heat sink () defining a circuit housing area (). A LED assembly () is disposed within the light reflecting area () and heat sink () dissipates heat away from LED assembly (). One or more LEDs of LED assembly () emit a light in response to a flow of a LED current through the LEDs. One or more optical power sensors of LED assembly () sense an emission of the light by LED(s). A LED driver circuit () is disposed within the circuit housing area () to control the flow of the LED current through the LED(s) as a function of a sensing of the emission of the light by the optical power sensor(s) and a desired level of one or more lighting variables associated with the LED(s).