PROBLEM TO BE SOLVED: To achieve improvement of uniformity while suppressing increase in manufacturing cost.SOLUTION: A light emitting device 1 includes: a light source 2; and a long light guide body 3 having an incident surface 30 where light radiated from the light source 2 enters, and for emitting a part of light to the outside while guiding the light entering the incident surface 30 in a direction being separated from the light source 2. The light emitting device 1 includes an opposing member 4 having an opposing surface 41 opposing to the light guide body 3 along a longer direction of the light guide body 3. At least a part of the opposing member 4 is constituted so that the longer the distance from the light source 2 along the longer direction of the light guide body 3 is, the higher the luminance on the opposing surface 41 becomes.SELECTED DRAWING: Figure 1
【課題】製造コストの上昇を抑えつつ均斉度の向上を図る。【解決手段】発光装置1は、光源2と、光源2から放射される光が入射する入射面30を有し、入射面30に入射する光を光源2から離れる向きに導光しつつ光の一部を外に出射する長尺の導光体3とを備える。発光装置1は、導光体3の長手方向に沿って導光体3と対向する対向面41を有する対向部材4を備える。対向部材4の少なくとも一部は、導光体3の長手方向に沿った光源2からの距離が大きくなるほど、対向面41における輝度を高くするように構成されている。【選択図】 図1
LIGHT EMITTING DEVICE AND MOBILE BODY
発光装置及び移動体
2018-11-01
Patent
Elektronische Ressource
Japanisch
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES |
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