To provide a light source device and a vehicular lighting fixture that can adjust a current value to be supplied to a light-emitting element for each group using a simple constitution.SOLUTION: In a light source device comprising a plurality of light-emitting elements (3a-3c4) in which current is supplied from a power supply (1), when n is an integer being more than or equal to 2 and m is an integer being more than or equal to 1 and less than n, the plurality of light-emitting elements (3a-3c4) are arranged in n groups from a first group to an n-th group which are sequentially connected in an order of high potential or in an order of low potential, and the n groups are arranged such that the number of the light-emitting elements (3a-3c4) belonging to a (m+1)-th group is larger than the number of the light-emitting elements (3a-3c4) belonging to a m-th group in all m.SELECTED DRAWING: Figure 1
【課題】簡便な構成でグループ毎に発光素子に対して供給する電流値を調整することが可能な光源装置及び車両用灯具を提供する。【解決手段】電源(1)から電流が供給される複数の発光素子(3a〜3c4)を備える光源装置であって、nは2以上の整数、mは1以上n未満の整数としたとき、複数の発光素子(3a〜3c4)は、電位が高い順あるいは電位が低い順に逐次接続された第1〜第nまでのn個のグループに配置され、n個のグループは、全てのmにおいて第(m+1)グループに属する発光素子(3a〜3c4)の個数が、第mグループに属する発光素子(3a〜3c4)の個数より多く配置される。【選択図】図1
LIGHT SOURCE DEVICE AND VEHICULAR LIGHTING FIXTURE
光源装置及び車両用灯具
2019-04-11
Patent
Elektronische Ressource
Japanisch
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / 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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen |
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