Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-01-16
2007-01-16
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling structure
Reexamination Certificate
active
10797383
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.
REFERENCES:
patent: 5228765 (1993-07-01), Jones
patent: 5307245 (1994-04-01), Myers et al.
patent: 5406641 (1995-04-01), Bigley, Jr. et al.
patent: 5673344 (1997-09-01), Li et al.
patent: 5982969 (1999-11-01), Sugiyama et al.
patent: 6104371 (2000-08-01), Wang et al.
patent: 6137928 (2000-10-01), Albrecht
patent: 6304693 (2001-10-01), Buelow, II et al.
patent: 6307987 (2001-10-01), Wang et al.
patent: 6347172 (2002-02-01), Keller et al.
patent: 6563993 (2003-05-01), Imamura et al.
patent: 6597834 (2003-07-01), Hata
patent: 7-198950 (1995-08-01), None
RD-390016-A, Sep. 1996, RD, Anon.
RD-388052-A, Jul. 1996, RD, Anon.
2 Pages entitled “Uniglo Backlighting” from http://www.poly-optical.com/uniglo.html webpage (when last viewed on May 2, 2004) showing uniform extraction of light from a light guide—admitted as prior art.
2 Pages entitled “Design of Luxaura Light Guide” http://www.luxaura.com/tech.shtml webpage (when last viewed on May 2, 2004) showing light emitting in a radial swath—admitted as prior art.
Specification and drawings for U.S. Appl. No. 10/796,830, filed Mar. 9, 2004, for Light Pipe with Directional Side-Light Extraction by Roger F. Buelow II, John M. Davenport, and Chris Jenson. This application is copending with the present application and is assigned, or subject to assignment, to the same assignee as the present application.
Specification and drawings for U.S. Appl. No. 10/797,761, filed Mar. 10, 2004, for Light Pipe with Side Light Extraction by Roger F. Buelow II, Chris H. Jenson, and John M. Davenport. This application is copending with the present application and is assigned, or subject to assignment, to the same assignee as the present application.
Specification and drawings for U.S. Appl. No. 10/108,279, filed Apr. 18, 2005, for Efficient Luminaire with Directional Side-Light Extraction by William J. Cassarly, Thomas L.R. Davenport, John M. Davenport, and Chris H. Jenson. This application is copending with the present application and is assigned, or subject to assignment, to the same assignee as the present application.
Buelow, II Roger F.
Davenport John M.
Doucet Brian
Jenson Chris H.
Bruzga Charles E.
Bruzga & Associates
Fiberstars, Inc.
Font Frank G.
Rude Timothy L.
LandOfFree
Side-light extraction by light pipe-surface alteration and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Side-light extraction by light pipe-surface alteration and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Side-light extraction by light pipe-surface alteration and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3825823