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. 16, 2007
Filed:
Mar. 10, 2004
Chris H. Jenson, Twinsburg, OH (US);
John M. Davenport, Middleburg Heights, OH (US);
Roger F. Buelow, Ii, Gates Mills, OH (US);
Brian Doucet, Akron, OH (US);
Chris H. Jenson, Twinsburg, OH (US);
John M. Davenport, Middleburg Heights, OH (US);
Roger F. Buelow, II, Gates Mills, OH (US);
Brian Doucet, Akron, OH (US);
Fiberstars, Inc., Solon, OH (US);
Abstract
A light pipe with side-light extraction by light pipe-surface alteration includes an optical light pipe with a plastic light-carrying portion covered with a fluoropolymer cladding. A plurality of light-extraction devices is spaced along an active section of the light pipe for emission of side light over only a range from about 2 to 270 degrees of the cross-sectional circumference of the light pipe in the active section. The light-extraction devices have inlets passing through the cladding and optically contacting the plastic light-carrying portion. Another form of light pipe with side-light extraction by light pipe-surface alteration includes an optical light pipe with a plastic light-carrying portion. An active section of the light pipe for side light emission comprises an axisymmetrical change of area of cross section of the light pipe that generally diminishes from an inlet end of the active section, through the active section.