Invention Grant
- Patent Title: Lighting apparatus
- Patent Title (中): 照明设备
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Application No.: US14217618Application Date: 2014-03-18
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Publication No.: US09581655B2Publication Date: 2017-02-28
- Inventor: Masahide Tanaka , Mitsunori Nagashima , Akinobu Sawada
- Applicant: Rohm Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Rohm Co., Ltd.
- Current Assignee: Rohm Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Fish & Richardson P.C.
- Priority: JP2010116578 20100520; JP2010120740 20100526; JP2010123678 20100531
- Main IPC: G08B21/00
- IPC: G08B21/00 ; G01R31/36 ; H05B33/08 ; H05B37/02
Abstract:
A lighting apparatus of the present invention includes: a light source; a power source unit arranged to power the light source; a detector unit arranged to detect the deterioration of ability of the power source unit to power the light source; and a determination unit arranged to determine the life of the power source unit in response to the detector unit.
Public/Granted literature
- US20140197840A1 Lighting Apparatus Public/Granted day:2014-07-17
Information query
