Title:
A lighting device and the light using this
Document Type and Number:
Japanese Patent JP6078903
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting device and lighting fixture using the same, capable of simplifying signal processing of detection signals of a plurality of heat sensors.SOLUTION: The present invention comprises: a lighting circuit 1a that supplies electric power to a plurality of light sources 31 comprised of LED elements Ld1; heat sensors 32 that are provided at each of the light sources 31, detects temperatures of the light sources 31 and outputs individual temperature detection signals; a typical signal creation circuit 22 that creates one typical temperature signal from individual temperature detection signals of each of the heat sensors 32; and a control circuit 15 that increases and decreases output power of the lighting circuit on the basis of the typical temperature signal.
Inventors:
Shigeru Well
Taishi Kido
Takeshi Kamoi
Akinori Hiramatsu
Junichi Hasegawa
Matsuzaki Nobutoshi
Daisuke Yamahara
Taishi Kido
Takeshi Kamoi
Akinori Hiramatsu
Junichi Hasegawa
Matsuzaki Nobutoshi
Daisuke Yamahara
Application Number:
JP2013018730A
Publication Date:
February 15, 2017
Filing Date:
February 01, 2013
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H05B37/02
Domestic Patent References:
| JP2003188415A | ||||
| JP2012119336A | ||||
| JP2011113643A |
Foreign References:
| US20050122065 |
Attorney, Agent or Firm:
Keisei Nishikawa
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