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Light pipe containing material
   
Document Number
US Patent 7520651
Issued Date
April 21, 2009
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Abstract
The present invention relates to an article of manufacture for detecting motion that includes a substrate with a plurality of volumes of material, where each volume is capable of transmitting light from one location on a surface of the substrate to a second location. The present invention also relates to an article of manufacture having a motion detector with a substrate with a first surface, and a volume of material contained within the substrate and adapted to transmit light from a first location on the first surface to at least a second location. The present invention also relates to methods of making the articles and to methods of transmitting information and detecting motion.
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Number of Claims:
18
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Published
April 21, 2009
Application Number
11/744,422
Filed
May 4, 2007
US Classification
362/576   362/555
Int'l Classification
F21S   4/00   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation of U.S. application Ser. No. 10/694,481, filed 27 Oct. 2003 now U.S. Pat. No. 7,229,203 and entitled "Light Pipe Containing Material", which claims the benefit of U.S. Provisional Application No. 60/500,124, filed on Sep. 4, 2003. Both applications are incorporated in their entirety by this reference.
USPTO Field of Search
362/554   362/551   362/576  
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