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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2011/077828
Kind Code:
Disclosed is a portable lighting device (1), comprising a device main body (10); a solar panel (20) positioned on the front surface of the device main body (10); an accumulator (40) and a lighting unit (50), which are housed within the device main body (10); and a chassis (10b). The lighting unit (50) further comprises a printed circuit board (51) and LEDs (52), and is mounted upon the chassis (10b). The chassis (10b) further comprises a flat radiator unit (11), which is located between the solar panel (20) and the lighting unit (50). The printed circuit board (51) makes thermal contact with the radiator unit (11) by being in a state of close contact with one primary surface of the radiator unit (11) via a thermal conduction member therebetween, and the solar panel (20) is adhesively anchored upon the chassis (10b) by being placed in contact with the other primary surface of the radiator unit (11) via an adhesive layer therebetween. It is thus possible to configure a portable lighting device, comprising a solar panel, which is capable of offering desirable radiation properties and alleviating uneven illumination even when the thickness of the device main body is reduced.

IKEMOTO, Jun (())
池本 準 (())
TANAKA, Hidehiko (())
Application Number:
Publication Date:
June 30, 2011
Filing Date:
October 25, 2010
Export Citation:
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SHARP KABUSHIKI KAISHA (22-22, Nagaike-cho Abeno-ku, Osaka-sh, Osaka 22, 〒5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町22番22号 Osaka, 〒5458522, JP)
IKEMOTO, Jun (())
池本 準 (())
International Classes:
F21L4/00; F21S9/03; F21V29/00; F21Y101/02
Foreign References:
Attorney, Agent or Firm:
Fukami Patent Office, p.c. (Nakanoshima Central Tower, 2-7 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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