PROBLEM TO BE SOLVED: To provide a vehicular lamp cluster in which a light emission area of a light guide body in an outgoing radiation plane can be changed in a long direction.SOLUTION: A vehicular lamp cluster 100 comprises a light source 1, a light guide body 2, and a light amount control part 3. The light guide body 2 comprises one end part 21a where a light of the light source 1 enters, the other end part 21b opposite to the one end part 21a, and an outgoing radiation plane 22 for radiating the light of the light source 1 toward a prescribed direction between the one end part 21a and the other end part 21b. The light amount control part 3 changes the light amount of the light source 1 so that a light emission area on the outgoing radiation plane 22 is changed. The vehicular lamp cluster 100 can change radiation distance of the light source 1 in a range up to the other end part 21b in which the one end part 21a of the light guide body 2 is a base point, by changing the light amount of the light source 1 arranged on the one end part 21a side of the light guide body 2, and can change the light emission area on the outgoing radiation plane 22 according to the radiation distance.SELECTED DRAWING: Figure 1
【課題】簡易な構成で、導光体の出射面における発光領域が長さ方向に変化可能な車両用灯火器を提供する。【解決手段】車両用灯火器100は、光源1と、導光体2と、光量制御部3と、を備える。導光体2は、光源1の光が入射する一端部21aと、一端部21aと反対側の他端部21bと、一端部21aと他端部21bとの間で、入射した光源1の光を所定の方向に出射する出射面22と、を有する。光量制御部3は、出射面22における発光領域が変化するように、光源1の光量を変化させる。上記の車両用灯火器100は、導光体2の一端部21a側に配置された光源1の光量を変化させることで、導光体2の一端部21aを基点として他端部21bまでの間で、光源1の照射距離を変化させることができ、その照射距離に応じて出射面22における発光領域を変化させることができる。【選択図】図1
VEHICULAR LAMP CLUSTER
車両用灯火器
2017-01-19
Patent
Elektronische Ressource
Japanisch
IPC: | 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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