SIDE EDGE TYPE PLANAR LIGHT-EMITTING DEVICE

SIDE EDGE TYPE PLANAR LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To solve such a problem that heat from LED chips structures a heat spot at a light-incident face part of a light guide plate resulting in an insufficient heat-radiating effect. SOLUTION: A dispersion plate 11 is arranged at a light-irradiating face 1c side of the light guide pl...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KOTANI TAIJI, MIYAKE YASUYUKI, SANO MANAMI
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
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-PORTABLE LIGHTING DEVICES
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To solve such a problem that heat from LED chips structures a heat spot at a light-incident face part of a light guide plate resulting in an insufficient heat-radiating effect. SOLUTION: A dispersion plate 11 is arranged at a light-irradiating face 1c side of the light guide plate 1, and a light-distributing graphite sheet 13 is arranged at a face contrary to a light-irradiating face 1d side together with a reflecting sheet 12. Linear light-emitting units 2, 3 are arranged at light-incident end faces 1a, 1b of the light guide plate 1. The light guide plate 1 or the like and the linear light-emitting units 2, 3 are fixed to a case 5 through a metal plate 4. Heat from the LED chips 21, 31 of the linear light-emitting units 2, 3 is quickly dispersed to a whole light-distributing graphite sheet 13 to be efficiently radiated to the case 5 through the metal plate 4. COPYRIGHT: (C)2011,JPO&INPIT