LED FLUORESCENT ILLUMINATION APPARATUS

WIPO Patent Application WO/2013/129362

A1

Provided is an LED fluorescent illumination apparatus that radiates light that is close to natural light and easy on the eyes, and wherein the manufacturing process thereof can be made easier and more low-cost, and the light distribution angle of which can be expanded to a mounting appliance side (ceiling surface, wall surface, etc.). The LED fluorescent illumination apparatus (1) is provided with: a heat sink (6) that radiates heat generated by a substrate (4); the substrate (4) comprising a turn-on circuit, and that is held by the heat sink (6); a flat-plate shaped LED light-source unit (3) provided on the front face of the substrate (4); a cover that comprises a translucent material, and that houses the heat sink (6), the substrate (4), and the LED light-source unit (3). The LED fluorescent illumination apparatus (1) is provided with a light guiding diffuser (5) that comprises a translucent material and that has recess/protrusion processing applied to the surface thereof, the light guiding diffuser (5) being processed so as to have a shape wherein light radiated by the LED light-source unit (3) is reflected diffusely inside the light guiding diffuser (5) due to recesses/protrusions formed on the surface thereof by the recess/protrusion processing, and the diffusely reflected light is further reflected.

SHIMIZU MASAHIRO (JP)
NOCHI EIJI (JP)
NOCHI KOJI (JP)
TANIGUCHI MIKA (JP)
MITANI KAZUHIRO (JP)

PCT/JP2013/054869

September 06, 2013

February 26, 2013

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ENUZU ENTPR INCORPOLATED (JP)
SHIMIZU MASAHIRO (JP)

F21S2/00; F21V29/00; F21Y101/02

JP2010003683A	2010-01-07
JP2012009451A	2012-01-12
JP2009302028A	2009-12-24
JP2010212043A	2010-09-24
JP2011233358A	2011-11-17

OGASAWARA YOSHINORI (JP)
Yoshinori Ogasawara (JP)

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