发明名称 |
Illumination device |
摘要 |
An illumination device includes a light emitting unit; and a lighting circuit, to which the light emitting unit is installed, for supplying an output voltage to the light emitting unit. The light emitting unit includes a light emitting element which is connected to an output terminal of the lighting circuit and emits light by the output voltage supplied from the lighting circuit; and a current limiting unit which limits a current flowing into the light emitting element portion from the lighting circuit at the time when the light emitting unit is installed to the lighting circuit. |
申请公布号 |
US9510411(B2) |
申请公布日期 |
2016.11.29 |
申请号 |
US201213398023 |
申请日期 |
2012.02.16 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
Hayashi Miyo;Mizukawa Hiromitsu |
分类号 |
H05B37/00;H05B33/08 |
主分类号 |
H05B37/00 |
代理机构 |
Bacon & Thomas, PLLC |
代理人 |
Bacon & Thomas, PLLC |
主权项 |
1. An illumination device comprising:
a light emitting unit; and a lighting circuit, to which the light emitting unit is installed, for supplying a direct current (DC) output voltage to the light emitting unit, wherein the light emitting unit includes a light emitting element which is connected to output terminals of the lighting circuit and emits light by the DC output voltage supplied from the lighting circuit; and a current limiting unit which limits a current flowing into the light emitting element from the lighting circuit at the moment when the light emitting unit is installed to the lighting circuit; wherein the current limiting unit does not limit the current flowing into the light emitting element from the lighting circuit in a normal lighting mode; wherein the current flowing into the light emitting element at the moment when the light emitting unit is installed to the lighting circuit is smaller than a current flowing into the light emitting element in the normal lighting mode; and wherein the light emitting unit further includes a power terminal detachably connected to the lighting circuit. |
地址 |
Osaka JP |