To provide a technology that reduce luminosity unevenness of irradiation light from a vehicular lighting system using a liquid crystal element.SOLUTION: A vehicular lighting system includes a lamp unit 100a (100b) disposed in a vehicle front part and including: a light source 1 controlled by a control device 102 and emitting light; two liquid crystal elements 7a, 7b controlled by the control device 102 and forming irradiation light using light emitted by the light source 1; and a projection lens 8 for projecting irradiation light formed by the liquid crystal elements 7a, 7b toward a periphery of a vehicle. The two liquid crystal elements 7a, 7b are arranged while overlapping on each other so that visual directions defined in accordance with orientation directions of respective liquid crystal layers become mutually opposite directions.SELECTED DRAWING: Figure 2
【課題】液晶素子を用いた車両用灯具システムの照射光の明るさムラを軽減する技術を提供する。【解決手段】車両用灯具システムにおいて、車両前部に配置されるランプユニット100a(100b)は、制御装置102に制御されて光を出射する光源1と、制御装置102に制御され、光源1から出射する光を用いて照射光を形成する2つの液晶素子7a、7bと、液晶素子7a、7bにより形成される照射光を車両の周囲へ投射する投影レンズ8と、を含む。2つの液晶素子7a、7bは、各々の液晶層の配向方向に応じて定まる視認方向が互いに逆方向となるように重ねて配置されている。【選択図】図2
VEHICULAR LIGHTING SYSTEM
車両用灯具システム
2021-06-24
Patent
Electronic Resource
Japanese
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... |
VEHICULAR LIGHTING FIXTURE, AND VEHICULAR LIGHTING SYSTEM
European Patent Office | 2015
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