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公开(公告)号：US11346507B2
公开(公告)日：2022-05-31
申请号：US17236922
申请日：2021-04-21
发明人： Xiaojun Ren , Kun Xiao , Yimin Zhu , Zhifeng Bao
IPC分类号： F21K9/232 , F21K9/233 , F21V3/02 , F21V29/60 , F21V29/85 , F21V31/00 , F21V3/06 , F21Y115/10
摘要： An LED lamp, comprising a base; a lamp envelope coupled to the base; a support module accommodated in the lamp envelope, a first inner cavity being formed between the support module and the lamp envelope, the first inner cavity containing therein a first gas medium; a driver module accommodated in the first inner cavity and coupled to the support module; and an LED inner vessel accommodated in the first inner cavity and coupled to at least one of the support module and the driver module, a sealed second inner cavity being formed within the LED inner vessel, and the second inner cavity containing therein a second gas medium and an LED light source module.
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公开(公告)号：US11564295B2
公开(公告)日：2023-01-24
申请号：US17538349
申请日：2021-11-30
发明人： Yimin Zhu , Pan Yao , Jie Gao , Xiangjin Mo , Jiachen Yang , Kun Xiao
摘要： Disclosed are a filament device for an illumination device, the illumination device, and a dimming method for the illumination device. The illumination device comprises: a dimming unit electrically connected to an external power supply, a first illumination unit which is electrically connected to the dimming unit and to which an input voltage from the external power supply is applied, a second illumination unit which is electrically connected to the dimming unit and to which an input voltage from the external power supply is applied, a unidirectional conduction unit electrically connected to the first illumination unit and the second illumination unit, a first current-limiting unit electrically connected to the first illumination unit; and a second current-limiting unit electrically connected to the second illumination unit, wherein the amplitude of the input voltage varies on the basis of a phase-cut angle of the dimming unit, when the amplitude of the input voltage varied on the basis of the phase-cut angle satisfies a first predetermined condition, the unidirectional conduction unit is in a turn-on state, and the illumination device operated in a first operation mode; and when the amplitude of the input voltage varied on the basis of the phase-cut angle satisfies a second predetermined condition, the unidirectional conduction unit is in a turn-off state, and the illumination device operates in a second operation mode. The effect of deepening the dimming depth is achieved.
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