Invention Grant
- Patent Title: Lighting device and illumination apparatus including same
- Patent Title (中): 照明装置和包括其的照明装置
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Application No.: US14518391Application Date: 2014-10-20
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Publication No.: US09370060B2Publication Date: 2016-06-14
- Inventor: Akinori Hiramatu , Hiroshi Kido , Junichi Hasegawa , Shigeru Ido , Daisuke Ueda
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2013-242189 20131122
- Main IPC: H05B33/08
- IPC: H05B33/08
Abstract:
A lighting device includes: a plurality of DC power supply circuits. A plurality of light sources and switching units are connected to each of the DC power supply circuits, the switching units being configured to respectively switch electrical connection between the light sources and said each of the DC power supply circuits. A difference in rated voltage between any two light sources connected to one of the plurality of DC power supply circuits in common is smaller than a difference in rated voltage between two light sources respectively connected to different DC power supply circuits of the plurality of DC power supply circuits.
Public/Granted literature
- US20150145422A1 LIGHTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME Public/Granted day:2015-05-28
Information query
