PLANAR LIGHTING DEVICE AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a planar lighting device that can restrain light leakage and attain suitable optical characteristics, and method for manufacturing the same.SOLUTION: The planar lighting device includes light source parts 1 to 5 having light emitting surfaces s1 for emitting planar l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOTSUKA MASATO, KAWAI SHINJI, HORIKAWA TOMOTAKA, KAWASHIMA SATOYUKI
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 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 NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a planar lighting device that can restrain light leakage and attain suitable optical characteristics, and method for manufacturing the same.SOLUTION: The planar lighting device includes light source parts 1 to 5 having light emitting surfaces s1 for emitting planar light, and a frame 7 arranged at an outer peripheral side of the light source parts 1 to 5 and retaining the light source parts 1 to 5. The frame 7 is formed in a frame shape for surrounding the light source parts 1 to 5, and has a reflection part 7a for reflecting light, and an absorption part 7b integrally formed on at least a part of an outer peripheral side of the reflection part 7a and absorbing light. Connecting surfaces 7a1, 7b1 of the reflection part 7a and the absorption part 7b are inclined on an outer peripheral side against a direction perpendicular to the light emitting surface s1.