SIDE EDGE TYPE SURFACE LIGHT-EMITTING DEVICE

To provide a side edge type surface light-emitting device that can be reduced in manufacturing cost.SOLUTION: A side edge type surface light-emitting device comprises: a light guide plate 1 which has an emission surface Se on an upper side, a light distribution control surface Sd on a lower side, an...

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Bibliographische Detailangaben
Hauptverfasser:	OKI YOJI, GOH LINGWEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADVERTISING BLASTING CRYPTOGRAPHY 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 DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING HEATING LABELS OR NAME-PLATES LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	To provide a side edge type surface light-emitting device that can be reduced in manufacturing cost.SOLUTION: A side edge type surface light-emitting device comprises: a light guide plate 1 which has an emission surface Se on an upper side, a light distribution control surface Sd on a lower side, and an incidence surface Sin on a side surface connecting the emission surface Se and the light distribution control surface Sd; a light source which is provided on the incidence surface Sin side of the light guide plate 1, for example, a plurality of light-emitting diodes (LED) elements 2; an upper prism sheet 3 which has a plurality of prisms provided opposite the emission surface Se side of the light guide plate 1 along a parallel direction (Y direction) of the incidence surface Sin and an emission surface provided on an upper side; and a lower prism sheet 4A which has a plurality of triangular prisms 41A provided on an upper side opposite the light distribution control surface Sd of the light guide plate 1 along a right-angled direction (X direction) of the incidence surface Sin of the light guide plate 1 and a flat surface 42A provided on a lower side.SELECTED DRAWING: Figure 1 【課題】製造コストを低減できるサイドエッジ型面発光装置を提供する。【解決手段】サイドエッジ型面発光装置は、上側に出射面Ｓｅ、下側に配光制御面Ｓｄ、出射面Ｓｅと配光制御面Ｓｄとを繋ぐ側面に入射面Ｓｉｎを有する導光板１と、導光板１の入射面Ｓｉｎ側に設けられた光源たとえば複数の発光ダイオード（ＬＥＤ）素子２と、導光板１の出射面Ｓｅ側に対向して入射面Ｓｉｎの平行方向（Ｙ方向）に沿って設けられた複数のプリズム及び上側に出射面を有する上プリズムシート３と、導光板１の配光制御面Ｓｄに対向して導光板１の入射面Ｓｉｎの直角方向（Ｘ方向）に沿って上側に設けられた複数の三角プリズム４１Ａ及び下側に設けられた平坦面４２Ａを有する下プリズムシート４Ａとを備えている。【選択図】図１