公开(公告)号：US20150237698A1

公开(公告)日：2015-08-20

申请号：US14617106

申请日：2015-02-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Akira TAKAHASHI ,  Kazuhiro TAKEDA ,  Toshiaki ISOGAI

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  Y02B20/346

Abstract: An LED lamp is used being connected to an external switch for performing an ON-OFF operation. The LED lamp, when causing a light emitting module to emit light in a first lighting mode, controls a power supply circuit to cause the light emitting module to emit light at a first brightness for a predetermined time period from when a timer circuit is activated, and to cause the light emitting module to emit light at a second brightness lower than the first brightness, after passage of the predetermined time period. The LED lamp, when causing the light emitting module to emit light in a second lighting mode, controls the power supply circuit to cause the light emitting module to continue to emit light at the first brightness irrespective of a state of the timer circuit.

Abstract translation: 使用LED灯连接到外部开关用于执行ON-OFF操作。 当LED灯在第一照明模式下使发光模块发光时，控制电源电路使得发光模块在从定时器电路被激活的预定时间段内以第一亮度发光， 并且在经过所述预定时间段之后使所述发光模块以比所述第一亮度低的第二亮度发光。 LED灯在使发光模块在第二点亮模式下发光时，控制电源电路使发光模块以与第一亮度相同的方式继续发光，而与定时器电路的状态无关。