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. 07, 2007
Filed:
Jul. 19, 2004
Joseph Mazzochette, Cherry Hill, NJ (US);
Greg E. Blonder, Summit, NJ (US);
Joseph Mazzochette, Cherry Hill, NJ (US);
Greg E. Blonder, Summit, NJ (US);
Lamina Ceramics, Inc., Westampton, NJ (US);
Abstract
A packaged LED array for high temperature operation comprises a metal base, the metal base including an underlying thermal connection pad. One or more layers of ceramic overly the metal base. The array includes a plurality of LED dice, each LED die having electrodes. And, the LED thermally coupled to the metal base. A driver circuit is electrically connected to the LED die electrodes and controls the LED array current. An LED driver is mounted within the LED array package, and thermally coupled to the metal base. In a second embodiment, one or more of the LED dice can be switched from the driver to a measurement circuit and used as a photodetector to measure the light output of the LED array. The measured photodetector signal can further be used as a feedback signal to control the LED array light output.