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:
Nov. 11, 2008
Filed:
Dec. 19, 2005
Applicants:
Zili LI, Barrington, IL (US);
Tomasz L. Klosowiak, Glenview, IL (US);
Min-xian M. Zhang, Inverness, IL (US);
Inventors:
Zili Li, Barrington, IL (US);
Tomasz L. Klosowiak, Glenview, IL (US);
Min-Xian M. Zhang, Inverness, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Light from a plurality of light sources is combined in a beam combiner. Photo-sensors are used to sense the intensity of each light source. Signals from the photo-sensors may be used to control the intensity of the light sources. The photo-sensors can be located in the beam combiner or located in the fringe of a collimated beam produced by the beam combiner. The illumination system has application in laser-scanning micro-projectors, for example.