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. 05, 1996
Filed:
Mar. 08, 1995
Mary E Kingsbury, Taylor, TX (US);
Siemens Rolm Communications Inc., Santa Clara, CA (US);
Abstract
A light transmission device includes a multiplicity of lightpipes of differing lengths wherein light output from each of the lightpipes has substantially a same intensity when light applied to an input end of each of the lightpipes has substantially another same intensity. In accordance with a preferred embodiment of the present invention, an area of a surface of the input end of each of the lightpipes is textured and the size of the area which is textured is varies from lightpipe to lightpipe. A method in accordance with the invention transmits light through lightpipes of different lengths. The light transmittivity of each of the lightpipes is regulated so that the light output from each of the lightpipes has substantially the same intensity.