Light guide apparatus for enhancing light source utilization...

Illumination – Light fiber – rod – or pipe – Specific material

Reexamination Certificate

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Details

C362S559000, C362S560000, C362S561000, C362S260000, C362S330000

Reexamination Certificate

active

07033059

ABSTRACT:
A light guide apparatus for enhancing light source utilization efficiency includes a light guide sheet, a light coupling structure and a light emerging structure. The light coupling structure is arranged on a surface of the light guide sheet and opposite to a light source. The light emerging structure is disposed on a surface of light guide sheet. Lights emitted by the light source enters into the light guide sheet via the light coupling structure and evenly emitted to outer environment via said light emerging structure, thereby enhancing light source utilization efficiency.

REFERENCES:
patent: 3641332 (1972-02-01), Reick et al.
patent: 5253151 (1993-10-01), Mepham
patent: 6336728 (2002-01-01), Deloy
patent: 6347873 (2002-02-01), Hosseini et al.
patent: 6407781 (2002-06-01), Kitada
patent: 6435686 (2002-08-01), Gotou et al.
patent: 2004/0008524 (2004-01-01), Lee et al.
patent: 2003079019 (2003-10-01), None

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