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Patent Searching and Data


Title:
LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP3234410
Kind Code:
B2
Abstract:

PURPOSE: To effectively use lamp light and improve its maintainability.
CONSTITUTION: A lighting device comprises a base board 2 attached to a main body 1, a display panel 4 having a light guide board 40 whose one face is set to a diffusion reflection face, a lamp 30 which radiates light from the end face of the light guide board 40 to the inside of the light guide board, and a reflection board 35 which surrounds the lamp and guides the lamp light to the end face of the light guide board. The reflection board 35 is integrally provided with a lamp holder 36 for holding the lamp 30, and the reflection board 35 and the display panel 4 are fixed to the base board 2. Positional relation between the lamp and the light guide board in the display panel is hard to deviate, the lamp held by the lamp holder which is integrally provided with the reflection board is easy to handle, and the positional relation between the lamp and the reflection board is constant.


Inventors:
Yasuo Shimizu
Masaharu Michiura
Hideki Mori
Hitoshi Kuriaki
Kaneyuki Murase
Katsumi Watanabe
Application Number:
JP20777494A
Publication Date:
December 04, 2001
Filing Date:
August 31, 1994
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
Kuroi Denki Co., Ltd.
International Classes:
G02B6/00; F21S9/02; F21V7/00; F21V8/00; F21V17/00; F21V29/505; G09F13/18; F21Y103/00; (IPC1-7): F21S9/02; F21V7/20; F21V8/00; G09F13/18
Domestic Patent References:
JP62201494A
JP714410A
JP69005U
JP391614U
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)