Light pipe with side-light extraction

Optical waveguides – Having particular optical characteristic modifying chemical... – Of waveguide core

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S123000, C385S144000, C385S901000, C362S582000

Reexamination Certificate

active

10797761

ABSTRACT:
A light pipe with uniform side-light emission has a core comprising a polymer, and a fluoropolymer cladding on the core with a lower refractive index than the core. Light-scattering material is distributed within the core along an active section of light pipe in which side-light emission is desired, with a density gradient chosen to achieve uniform side-light emission. Another light pipe with uniform side-light emission has a core comprising a polymer, and a fluoropolymer cladding on the core with a lower refractive index than the core. Light-scattering material is distributed within at least one of the cladding and the core along an active section of light pipe in which side-light emission is desired, with a density gradient chosen to yield uniform side light emission, and substantially only in a radial swath, along the longitudinal axis of the light pipe, of substantially less than 360 degrees.

REFERENCES:
patent: 4422719 (1983-12-01), Orcutt
patent: 5579429 (1996-11-01), Naum
patent: 5937127 (1999-08-01), Zarian et al.
patent: 5982969 (1999-11-01), Sugiyama et al.
patent: 6154595 (2000-11-01), Yokogawa et al.
patent: 6278827 (2001-08-01), Sugiyama et al.
patent: 6563993 (2003-05-01), Imamura et al.
patent: 6621973 (2003-09-01), Hoffman
patent: 6714711 (2004-03-01), Lieberman et al.
patent: 0 841 141 (1998-05-01), None
patent: 06-118238 (1994-04-01), None
patent: 6-69903 (1994-09-01), None
patent: WO 98/08024 (1997-08-01), None
patent: WO 02/052314 (2002-07-01), None
1 page entitled “Technical Notes” from http://www.zeusinc.com/zeus-catalog-11.pdf webpage (when last viewed on May 2, 2004) showing products produced by extrusion technology—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. 10/797,383, filed Mar. 10, 2004, for Light Pipe with Side Light Extraction by Roger F. Buelow II, Chris H. Jenson, and John M. Davenport.
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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Light pipe with side-light extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light pipe with side-light extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light pipe with side-light extraction will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3746701

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.