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Patent Searching and Data


Title:
ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/079619
Kind Code:
A1
Abstract:
Provided is an illumination device in which a lighting part for notifying a decrease in the remaining capacity of a battery is easy to see. This illumination device (1) comprises: a lighting circuit that lights up LEDs (5a, 5b); and a control circuit that controls the output of the lighting circuit. When the surrounding brightness becomes darker than a predetermined value, the control circuit controls the lighting circuit so as to light up the LED (5a) with power from a commercial power supply. When a lighting operation is performed using a lighting switch (8), the control circuit lights up the LED (5b) with power from a battery. A lighting part (9) is provided so as to emit light from a portion of a device body (2) located on the upper side thereof in a state where a plug (4) provided on the back surface of the device body (2) is connected to a power supply outlet. When the remaining capacity of the battery falls below a predetermined capacity, the control circuit notifies the decrease in battery capacity by lighting up the lighting part (9).

Inventors:
OKUURA KEIICHIRO
SASAKI KOSUKE
SO YUJIN
Application Number:
PCT/JP2014/005317
Publication Date:
June 04, 2015
Filing Date:
October 20, 2014
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F21S8/00; F21S2/00; F21S9/02; F21V23/00; H05B37/02; F21L4/00; F21Y101/02
Foreign References:
JP3108623U2005-04-28
JP3144739U2008-09-11
US20050117343A12005-06-02
JPH09265814A1997-10-07
US20040105279A12004-06-03
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
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