PLANAR LIGHTING DEVICE

• Main Authors: FUJIWARA MASAYA, MORISHITA TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: 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; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a planar lighting device that can narrow a frame without deterioration in strength of a spacer.SOLUTION: A planar lighting device includes a substrate, a diffuser and a spacer. The substrate is disposed with multiple light sources in a two-dimensional manner. The diffuser is disposed on an emission side of the substrate. The spacer supports an end of the diffuser, has a diffuser-side width that is smaller than a light source-side width and has a frame side with a surface that faces an emission surface while being inclined thereto in at least the part thereof.SELECTED DRAWING: Figure 4 【課題】スペーサの強度を低下させることなく狭額縁化を可能とした面状照明装置を提供すること。【解決手段】実施形態の面状照明装置は、基板と、ディフューザと、スペーサとを備える。前記基板は、複数の光源が２次元に配置される。前記ディフューザは、前記基板の出射側に配置される。前記スペーサは、前記ディフューザの端部を支持し、前記光源側の幅よりも前記ディフューザ側の幅が小さく、出射面に傾斜して対面する面を有する枠辺を少なくとも一部に有する。【選択図】図４