Illumination – Edge lighted panel – Light guide
Reexamination Certificate
2005-11-22
2005-11-22
Husar, Stephen (Department: 2875)
Illumination
Edge lighted panel
Light guide
C362S551000, C362S610000
Reexamination Certificate
active
06966685
ABSTRACT:
An illumination system employs a light distribution cylinder with an exterior surface in the form of a plurality of progressively smaller-diameter cylindrical steps. The outside surface of each cylindrical step is interrupted by V-shaped grooves perpendicular to the axis of the cylinder. Each surface of these V-shaped grooves acts to internally reflect divergent light from a light source positioned at the end of the tube. The light distribution cylinders may be solid or hollow and configured with bilateral symmetry to receive light from either end. The illumination system rearranges divergent directional light from a light source into non-directional light emitted in a cylindrical pattern useful for area illumination.
REFERENCES:
patent: 3535018 (1970-10-01), Vasilatos
patent: 4195907 (1980-04-01), Zamja et al.
patent: 4344110 (1982-08-01), Ruediger
patent: 4422719 (1983-12-01), Orcutt
patent: 4466697 (1984-08-01), Daniel
patent: 4662728 (1987-05-01), Whitehead
patent: 4750798 (1988-06-01), Whitehead
patent: 4834495 (1989-05-01), Whitehead et al.
patent: 4906070 (1990-03-01), Cobb, Jr.
patent: 4936668 (1990-06-01), Mori
patent: 5083549 (1992-01-01), Cho et al.
patent: 5276693 (1994-01-01), Long et al.
patent: 5418384 (1995-05-01), Yamana et al.
patent: 5434754 (1995-07-01), Li et al.
patent: 5542017 (1996-07-01), Koike
patent: 5664862 (1997-09-01), Redmond et al.
patent: 6031958 (2000-02-01), McGaffigan
patent: 6160948 (2000-12-01), McGaffigan
patent: 6337946 (2002-01-01), McGaffigan
patent: 6595673 (2003-07-01), Ferrante et al.
patent: 6829412 (2004-12-01), Li
patent: 11084135 (1999-03-01), None
Chan Sin Wing
Li Li Man
Li Ying Hung
Louie Derek Chi Hang
Pun Ashley Min Hang
Alix Yale & Ristas, LLP
Husar Stephen
Sawhney Hargobind S.
World Hint Limited
LandOfFree
Distributed light illumination system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distributed light illumination system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed light illumination system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3500873