PROBLEM TO BE SOLVED: To provide a technology which achieves both improvement of visibility and reduction of discomfort in emitting light from a vehicle lamp structured by using an LED or the like.SOLUTION: A lighting control device 1 controls a lighting on/off state of a light source 2 including a plurality of lamp units 2a-2c which have a semiconductor light emitting element respectively, and the device includes a control part 10 for generating and outputting a control signal, and a light source drive part 13 for driving the plurality of lamp units based on the control signal. Respective luminous intensities of light beams emitted from the first lamp unit and the second lamp unit driven by the light source drive part based on the control signal decline from a first value which is larger than 0 to a second value which is smaller than the first value in a common period, and the respective luminous intensities gradually decline to the second value while maintaining a relationship that the luminous intensity of the first lamp unit is lower than the luminous intensity of the second lamp unit at any time point in the common period.SELECTED DRAWING: Figure 1
【課題】LED等を用いて構成される車両用灯具の発光時における視認性の向上と違和感の軽減を両立する技術を提供する。【解決手段】各々が半導体発光素子を有する複数のランプユニット2a〜2cを含む光源2の点消灯状態を制御するための点灯制御装置1であって、制御信号を生成し出力する制御部10とこの制御信号に基づいて複数のランプユニットを駆動する光源駆動部13を含む。制御信号に基づいて光源駆動部により駆動されて第1ランプユニット及び第2ランプユニットから出射する光は、共通期間内において各々の光度が0より大きい第1値からこれより小さい第2値へ低下するものであり、当該共通期間内の何れの時点においても、第1ランプユニットの光度が第2ランプユニットの光度よりも低いという関係を保ったまま各々の光度が前記第2値まで漸減する、。【選択図】図1
LIGHTING CONTROL DEVICE OF VEHICLE LAMP, VEHICLE LAMP SYSTEM
車両用灯具の点灯制御装置、車両用灯具システム
2018-09-13
Patent
Electronic Resource
Japanese
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 / H05B ELECTRIC HEATING , Elektrische Heizung |
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