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:
Dec. 14, 2010
Filed:
Oct. 31, 2005
Applicant:
Hosein Ali Razavi, San Diego, CA (US);
Inventor:
Hosein Ali Razavi, San Diego, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An illumination source comprises a plurality of groups of serially-coupled light emitting diodes (LEDs). The LEDs in each group have an emission-spectrum that is common to that group. At least one group has a different emission-spectrum from at least one other group and at least one group of LEDs has a different number of LEDs than at least one other group.