Refraction-type led ceiling lamp

Details Refraction-type led ceiling lamp Refraction-type led ceiling lamp

2011-06-07

2011-06-07

Husar, Stephen F (Department: 2875)

Illumination

With static structure

Wall or ceiling

C362S148000, C362S294000, C362S364000, C362S612000, C362S625000

Reexamination Certificate

active

07954975

ABSTRACT:
A refraction-type LED ceiling lamp, especially a plate-type ceiling lamp which is used on an indoor ceiling, includes primarily a fiber light guide plate, a reflection surface of which is provided with multiple chip-shape reflection elements, distributed in arrays. A chip size of the reflection elements decreases gradually toward an entrance surface by a geometric series; whereas, a gap between the reflection elements increases gradually. A reflection curve of the reflection element allows light to be projected out uniformly and a required illumination angle to be achieved.

REFERENCES:
patent: 6296372 (2001-10-01), Rhomberg
patent: 6355961 (2002-03-01), Forbes
patent: 6540373 (2003-04-01), Bailey
patent: 7311423 (2007-12-01), Frecska et al.
patent: 7547112 (2009-06-01), Kim
patent: 2001/0046131 (2001-11-01), Hoelen et al.

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