LIGHTING DEVICE

To provide a lighting device capable of easily securing required brightness in an entire vehicle in an emergency with a simple constitution and further improving safety at the time of evacuation without increase in cost.SOLUTION: This vehicle is provided with an indoor lamp 11 which is arranged in a state of irradiating throughout the whole of the front/rea direction of the vehicle in a passenger cabin in a railroad vehicle 1; a vehicle body power source 20 which supplies electric power to the indoor lamp 11; and a battery 30 which is charged with a current from the vehicle body power source 20. The indoor lamp 11 includes a general lamp light source 12 and a spare lamp light source 13 which is lighted at an illuminance lower than the general lamp light source 12. Power is supplied from the vehicle body power source 20 to the general lamp light source 12 without intervention of the battery 30, and power is supplied from the vehicle body power source 20 to the spare lamp light source 13 via the battery 30. In an emergency, power is supplied only from the battery 30 only to the spare lamp light source 13, and the spare lamp light source 13 is lighted at the low illuminance as it is.SELECTED DRAWING: Figure 1 【課題】簡易な構成により非常時には車両全体で必要な明るさを容易に確保することができ、コストアップを招くことなく避難時の安全性をより向上することができる照明装置を提供する。【解決手段】鉄道車両１の客室内にて車両の前後方向の全体に亘り照射する状態に配置される室内灯１１と、室内灯１１に電力を供給する車体電源２０と、車体電源２０からの電流により充電されるバッテリ３０と、を備える。室内灯１１は、一般灯光源１２と、これより低い照度で点灯する予備灯光源１３と、を含み、一般灯光源１２には、車体電源２０よりバッテリ３０を介さず電力が供給される一方、予備灯光源１３には、車体電源２０よりバッテリ３０を介して電力が供給される。非常時に、バッテリ３０から予備灯光源１３にのみ電力が供給され、該予備灯光源１３は、そのまま低い照度で点灯する。【選択図】図１