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:
Jan. 13, 2009
Filed:
Feb. 07, 2005
Applicants:
Huei-pei Kuo, Cupertino, CA (US);
Laurence Hubby, Palo Alto, CA (US);
Steven L Naberhuis, Fremont, CA (US);
Xia Sheng, Los Altos, CA (US);
Inventors:
Huei-Pei Kuo, Cupertino, CA (US);
Laurence Hubby, Palo Alto, CA (US);
Steven L Naberhuis, Fremont, CA (US);
Xia Sheng, Los Altos, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); G03B 21/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of making a louver device for a light guide screen. More specifically, in a specific embodiment, a transparent layer is provided. A plurality of similarly angled surfaces are established within the transparent layer. The angled surfaces are coated with a light-reflective material such that the coated surfaces define a plurality of light paths through the transparent layer.