JPS58166681U

JPS58166681U - Lighting mechanism

Info

Publication number: JPS58166681U
Application number: JP6316582U
Authority: JP
Inventors: 二井　隆義
Original assignee: 日本航空電子工業株式会社
Priority date: 1982-04-30
Filing date: 1982-04-30
Publication date: 1983-11-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の照光機構の一例の構造を示す図、第２図
は長辺と短辺の比の大きい輪郭を有する長方形の表示部
の一例を示す図、第３図は本考案にか）る照光機構の構
造を断面により示す図、第４図は光束の代表的な径路を
示す図である。１．１２・・・筐体、３．１３・・・空室、７・・・表
示部、１０・・・光源、２１・・・プリズム、２２・・
・頂角部、２４．２４’・・・挟辺、２６・・・反射板
。Fig. 1 is a diagram showing the structure of an example of a conventional illumination mechanism, Fig. 2 is a diagram showing an example of a rectangular display section having a contour with a large ratio of long sides to short sides, and Fig. 3 is a diagram showing the structure of an example of a conventional illumination mechanism. ) is a cross-sectional view showing the structure of the illumination mechanism, and FIG. 4 is a view showing a typical path of a light beam. 1.12... Housing, 3.13... Vacant room, 7... Display section, 10... Light source, 21... Prism, 22...
・Vertex corner, 24.24'...Nippet side, 26...Reflector.

Claims

[Scope of utility model registration request]

In an illumination mechanism for uniformly illuminating a display unit having an outline with a large ratio of long sides to short sides from inside the housing, a right angle whose apex is formed into an arc shape is provided in a cavity provided inside the housing. A triangular plate-like prism, a rectangular reflecting plate, and a light source are arranged, and the reflecting plate is fixed to one side of the prism at an angle with respect to the display surface, and the light source is fixed to the other side of the prism. A lighting mechanism characterized by being placed on the side.