LUMINAIRE

PROBLEM TO BE SOLVED: To provide a direct type luminaire using a light-emitting diode, which suppresses deterioration of light quantity and reduces glare.SOLUTION: A luminaire includes: on a surface of a substrate, a light source module comprising a mounting substrate mounted with one or more light-...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA TATSU, KUZE KATSURO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY NON-PORTABLE LIGHTING DEVICES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a direct type luminaire using a light-emitting diode, which suppresses deterioration of light quantity and reduces glare.SOLUTION: A luminaire includes: on a surface of a substrate, a light source module comprising a mounting substrate mounted with one or more light-emitting diodes, and a light guide wall installed on a light emission side with respect to the mounting substrate; and on the light emission surface side of the light source module, a light diffusion member containing a light diffusion layer formed by a thermoplastic resin composition containing a light diffusion agent. In the luminaire, the relative light beam permeability of the light diffusion member is 2 or more and 20 or less, and a light distribution angle is 15° or more and 70° or less.SELECTED DRAWING: Figure 1 【課題】発光ダイオードを用いた直下型照明器具において、光量の低下が抑制され、かつ眩しさを低減させた照明器具を提供する。【解決手段】基板の表面に、１以上の発光ダイオードが実装された実装基板及び該実装基板より出光側に設置された導光壁よりなる光源モジュールと、該光源モジュールの出光面側に、光拡散剤が含有された熱可塑性樹脂組成物より形成される光拡散層を含む光拡散部材と、を備えた照明器具であって、上記光拡散部材の相対光線透過度が２以上２０以下であり、かつ、配光角が１５°以上７０°以下であることを特徴とする。【選択図】図１