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:
Jul. 07, 2009
Filed:
May. 13, 2004
Applicant:
Arthur Berman, San Jose, CA (US);
Inventor:
Arthur Berman, San Jose, CA (US);
Assignee:
LightMaster Systems, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hollow sphere with a scattering (e.g., white diffusive) interior surface directs light input from at least one input light source to an exit. The exit has a reflective polarizer that passes light of a selected polarization to an output. Light of other polarization(s) is reflected back into the sphere where it becomes unpolarized because of reflections and may eventually be returned to the exit at the selected polarization. The illuminator is well suited as a light source for light management systems of various configurations.