PLANAR LIGHTING SYSTEM

PROBLEM TO BE SOLVED: To provide a sidelight type planar lighting system improving the utilization efficiency of outgoing light from point-like light sources. SOLUTION: Fixed walls 16-19 extending from a housing frame 14 have first projecting parts 21-24 projecting alternately from the upper side an...

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Bibliographische Detailangaben
Hauptverfasser:	OISHI NARIYUKI, TERADA NAOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sidelight type planar lighting system improving the utilization efficiency of outgoing light from point-like light sources. SOLUTION: Fixed walls 16-19 extending from a housing frame 14 have first projecting parts 21-24 projecting alternately from the upper side and the lower side, at the tip parts. A light entry surface 11c of a light guide plate 11 has second projecting parts 25-28 respectively projecting to be vertically alternate with the first projecting parts 21-24, at the parts facing the respective fixed walls 16-19. The fixed walls 16-19 are connected to the light entry surface 11c by fitting the first projecting parts 21-24 and the second projecting parts 25-28. The respective point-like light sources are arranged in partitions 15a, 15b, 15c formed of spaces between the fixed walls 16-19. The camber and waviness of the light guide plate 11 are thereby straightened to improve the bonding efficiency of the point-like light sources and the light guide plate 11, and leakage light outgoing sideward and backward from the point-like light sources can be reflected and made incident to the light entry surface 11c. COPYRIGHT: (C)2005,JPO&NCIPI