PROBLEM TO BE SOLVED: To provide a head lamp comprising plural light emission elements arranged in a matrix-state, capable of emitting bright radiation light without discomfort, and optionally changing light distribution during lighting of an ADB, and a lighting device thereof.SOLUTION: A lighting device 6 comprises: a switch control part 35 for switching first power feeding lines 12a to 12e which are electrified by a power supply part 21 for every time zone; and a current control part 38 for controlling current used for electrifying respective second power feeding lines 13a to 13g by the power supply part 21 for every time zone. The current control part 38 controls the current so that, an LED 11 arranged on a center of the matrix lights brighter than LEDs 11 arranged in the surrounding of the matrix.SELECTED DRAWING: Figure 3
【課題】マトリクス状に配列した複数個の発光素子を備える前照灯において、明るく違和感のない照射光を発し、ADBなどの点灯時に配光を任意に変化させることができる前照灯及びその点灯装置を提供する。【解決手段】点灯装置6は、電源部21が通電する第1給電線12a〜12eを時間区間ごとに切り替える切替制御部35と、電源部21がそれぞれの第2給電線13a〜13gに通電する電流を時間区間ごとに制御する電流制御部38とを備える。電流制御部38は、マトリクスの中央部に配置されたLED11がマトリクスの周辺部に配置されたLED11よりも明るく点灯するように電流を制御する。【選択図】図3
HEAD LAMP AND LIGHTING DEVICE THEREOF
前照灯及びその点灯装置
2016-12-08
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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