Title:
LED ILLUMINATION DEVICE AND METHOD FOR CONTROLLING LIGHTING THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/038104
Kind Code:
A1
Abstract:
[Problem] To provide: an LED illumination device for indoor/outdoor lighting functioning as mobile lighting and as emergency-use lighting; and a method for controlling the lighting thereof. [Solution] This LED illumination device comprises: an LED array (208) arranged upon a flat surface; a secondary battery (110) for operating the LED array (208) in the event of no power supply from a commercial power source; a DC converter (202) that drives the LED array (208) and is also for charging the secondary battery (110); voltage comparison units (205, 604) that compare a probe voltage and a charge voltage for charging a secondary battery means or compare the probe voltage and a ground voltage; and a switching unit (209) that turns the output from the voltage comparison unit (205) on and off. The voltage comparison unit (205) controls so as to turn on the LED array, by outputting the output voltage for the secondary battery means during power outages, in accordance with the comparison with the probe voltage.
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Inventors:
YAMADA TOMONOBU (JP)
ITO KIYONORI (JP)
ITO KIYONORI (JP)
Application Number:
PCT/JP2013/000809
Publication Date:
March 13, 2014
Filing Date:
February 14, 2013
Export Citation:
Assignee:
NEO LOGIS INC (JP)
International Classes:
F21L4/00; H05B37/02; F21S2/00; F21S9/02; F21V23/00; H02J9/02; F21Y101/02; H05B45/50
Foreign References:
| JP2010073334A | 2010-04-02 | |||
| JPH0898434A | 1996-04-12 |
Attorney, Agent or Firm:
MAYAMA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation M eye Py (JP)
Patent business corporation M eye Py (JP)
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