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:
Feb. 14, 2012
Filed:
Dec. 11, 2007
Martinus Petrus Joseph Peeters, Eindhoven, NL;
Virginie Mercier, Eindhoven, NL;
Martinus Petrus Joseph Peeters, Eindhoven, NL;
Virginie Mercier, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Proposed is a lighting device (), comprising LEDs () mounted on a transparent substrate (), provided with a transparent electrically conductive layer () and a contact pad (). The contact pad has a second part (), extending away from a first part (), for further reducing the current density in the conductive layer (). This is advantageous for making the lighting device robust to large power dissipation, especially under high current testing conditions. Moreover, as the voltage drop over transparent conductive layer is reduced, the efficiency of the lighting device is increased.