LED PLANAR LIGHTING SYSTEM BASED ON LIGHT-GUIDE PLATES AND METHOD FOR INSTALLING SAME

WIPO Patent Application WO/2012/165907

A2

After a finishing material for a ceiling is installed in a ceiling of an indoor space without installing an electric-wire pipe, LED planar lighting devices based on light-guide plates are directly attached to a surface of the ceiling finishing material at desired positions without cutting the ceiling finishing material. Separately, a converter for converting common alternating current voltage into direct current voltage, which is required for operating a plurality of LEDs in the planar lighting devices, is installed at a readily accessible position, and connected to each planar lighting device through cables for low direct current voltage. The wiring path of the cables comprises a ceiling section, which reaches each planar lighting device across the ceiling finishing material. The cables in the ceiling section are wired such that the cables are not buried within a metal electric-wire pipe but are attached to an outer surface of a lower portion of the ceiling finishing material or a finishing-material support member, or are mounted on the ceiling finishing material or the finishing-material support member. Each planar lighting device may be formed into various shapes as desired, and light-scattering elements of the light-guide plates are finely engraved through a sand blasting performed in a single step or in two steps.

MYUNG BEOM-YOUNG (KR)

PCT/KR2012/004356

December 06, 2012

June 01, 2012

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HGM CO LTD (KR)
MYUNG BEOM-YOUNG (KR)

F21V21/03; F21V8/00; F21V23/00

KR100950957B1	2010-04-02
JP2001338526A	2001-12-07
KR100985505B1	2010-10-05
KR100961236B1	2010-06-03
KR100505282B1	2005-07-29

PARK, HEEJIN (KR)
박희진 (KR)

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