Title:
GUIDANCE DISPLAY BOARD
Document Type and Number:
WIPO Patent Application WO/2013/024897
Kind Code:
A1
Abstract:
[Problem] To provide a guidance display board having a light-emitting body whereby light emission that is bright enough to irradiate a light-accumulating phosphor can be obtained with little power consumption by using an ultraviolet light-emitting diode, and which by being installed on the backside of a display board can evenly illuminate the entire display board. [Solution] Provided is a guidance display board, comprising: a display board body provided with a guidance mark formed by coating or imprinting a transparent substrate with a light-accumulating phosphor; a columnar light-emitting body for illuminating the light-accumulating phosphor; and a solar light panel for generating power to be provided to the columnar light-emitting body. The guidance display board is characterized in that the columnar light-emitting body comprises a cylindrical light guide body comprising quart glass; an ultraviolet light-emitting diode which uses the power supplied from the solar light panel and whereby ultraviolet light is incident on the cylindrical light guide body from an end section of the cylindrical light guide body; and at least one light-reflecting layer strip which is provided following the longitudinal direction of the cylindrical light guide body and to a side of the cylindrical light guide body not facing the display panel body.
Inventors:
TAKAHASHI KIN ETSU (JP)
Application Number:
PCT/JP2012/070897
Publication Date:
February 21, 2013
Filing Date:
August 17, 2012
Export Citation:
Assignee:
IMPACT KK (JP)
IINA KK (JP)
PLANET KK (JP)
KARASAWA MARI (JP)
TAKAHASHI KIN ETSU (JP)
IINA KK (JP)
PLANET KK (JP)
KARASAWA MARI (JP)
TAKAHASHI KIN ETSU (JP)
International Classes:
G09F13/20; G09F13/42
Foreign References:
| JPH06282234A | 1994-10-07 | |||
| JP2003015558A | 2003-01-17 | |||
| JP2000076916A | 2000-03-14 | |||
| JP2002140026A | 2002-05-17 | |||
| JPH09146482A | 1997-06-06 | |||
| JP2010537249A | 2010-12-02 | |||
| JP2003100101A | 2003-04-04 | |||
| JPH02117583U | 1990-09-20 | |||
| JPH09230810A | 1997-09-05 | |||
| JP2012043630A | 2012-03-01 |
Attorney, Agent or Firm:
KUDO, ICHIRO (JP)
Ichiro Kudo (JP)
Ichiro Kudo (JP)
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Claims:
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