Invention Grant
- Patent Title: Light control apparatus and lighting appliance using the same
- Patent Title (中): 照明控制装置及使用其的照明器具
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Application No.: US12679717Application Date: 2008-09-24
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Publication No.: US08344651B2Publication Date: 2013-01-01
- Inventor: Hirofumi Takaki , Shin Ukegawa , Minoru Maehara , Hirofumi Konishi , Masanao Okawa
- Applicant: Hirofumi Takaki , Shin Ukegawa , Minoru Maehara , Hirofumi Konishi , Masanao Okawa
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2007-248105 20070925
- International Application: PCT/JP2008/067191 WO 20080924
- International Announcement: WO2009/041438 WO 20090402
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B39/04 ; H05B41/36 ; H05B37/00 ; H05B39/00 ; H05B41/14 ; H05B41/16 ; H05B41/24

Abstract:
It is an object to provide a light control apparatus and a lighting appliance using the same which enables to increase luminous efficiency in the light control. The lighting appliance includes a light source and a light control apparatus. The light control apparatus includes an electric current output circuit which outputs a constant electric current for lighting to a light source configured of an organic electroluminescence device, an electric current control circuit which controls an intensity of a driving electric current outputted from the electric current output circuit, and the electric current control circuit biases a direct current component so as to vary the driving electric current periodically between a predetermined maximum value and a predetermined minimum value and flows in the same direction at all times in the light control of the light source.
Public/Granted literature
- US20100219768A1 LIGHT CONTROL APPARATUS AND LIGHTING APPLIANCE USING THE SAME Public/Granted day:2010-09-02
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