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:
May. 01, 2007
Filed:
Aug. 05, 2004
Applicants:
Rizal Jaffar, Melaka, MY;
Len LI Kevin Lim, Perak, MY;
Joon Chok Lee, Sarawak, MY;
Inventors:
Assignee:
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/25 (2006.01);
U.S. Cl.
CPC ...
Abstract
Optical feedback for controlling color of light from a light source is provided. Incident optical energy of the light is detected as a function of discrete steps of wavelength. For each discrete step of wavelength, an X, Y and Z tristimulus subvalue is produced. All the X, Y and Z tristimulus subvalues for all the discrete steps are summed together to produce an X, Y and Z tristimulus value for the light. The X, Y and Z tristimulus values are used as feedback in controlling color of the light generated by the light source.