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Title:
DISPLAY LAMP
Document Type and Number:
Japanese Patent JP2012009343
Kind Code:
A
Abstract:

To provide a display lamp capable of preventing front and rear sides of a light guide plate from being kept installed in reverse.

The display lamp includes a plate-shaped light guide plate 8, light sources 13 irradiating light on side faces of the light guide plate 8, and a display plate 3 arranged at a front side of the light guide plate 8. Reflection patterns 17 for reflecting light from the light sources 13 to a front side of the light guide plate 8 are formed on a rear face of the light guide plate 8, and a display pattern Q for displaying that the front and rear sides of the light guide plate 8 are reversed is formed on the rear face of the light guide plate 8 as the light from the light source 13 is blocked when the front and rear sides of the light guide plate 8 are installed in reverse.


Inventors:
SAITO ISAO
Application Number:
JP2010000145360
Publication Date:
January 12, 2012
Filing Date:
June 25, 2010
Export Citation:
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Assignee:
PANASONIC ELEC WORKS CO LTD
International Classes:
F21S2/00; F21S9/02; F21Y101/02; F21Y103/00
Domestic Patent References:
JP2010102188A2010-05-06
JPH0550403U1993-07-02
JPH05273403A1993-10-22
JP2010102188A2010-05-06
Attorney, Agent or Firm:
西川 惠清
水尻 勝久
坂口 武
北出 英敏



 
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