JPH0446329U

JPH0446329U -

Info

Publication number: JPH0446329U
Application number: JP8700490U
Authority: JP
Priority date: 1990-08-22
Filing date: 1990-08-22
Publication date: 1992-04-20

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す第２図の
−断面図、第２図は第１図の発光部付操作スイ
ツチを適用した電話機の平面図、第３図は第１図
における動作説明図、第４図は従来例を示す発光
部付操作スイツチの断面図、第５図は同従来例の
動作説明図である。図において、９は電話機、１０はハンドセツト
、１１はダイヤルボタン、１２は押しボタンスイ
ツチ、１３は押しボタン、１３ａは境界面、１４
はレンズ、１４ａは入射面、１４ｂは出射面、１
５は筺体、１５ａはボタン孔、１６はプリント配
線基板、１７はＬＥＤ、１８は固定接点、１９は
ラバーコンタクト、１９ａは可動接点部、１９ｂ
は逃げ部である。なお、図中同一符号は同一、ま
たは相当部分を示す。 Fig. 1 is a cross-sectional view of Fig. 2 showing an embodiment of this invention, Fig. 2 is a plan view of a telephone to which the light-emitting operation switch of Fig. 1 is applied, and Fig. 3 shows the operation in Fig. 1. FIG. 4 is a sectional view of a conventional operation switch with a light emitting part, and FIG. 5 is an explanatory diagram of the operation of the conventional example. In the figure, 9 is a telephone, 10 is a handset, 11 is a dial button, 12 is a push button switch, 13 is a push button, 13a is a boundary surface, 14
is a lens, 14a is an entrance surface, 14b is an exit surface, 1
5 is a housing, 15a is a button hole, 16 is a printed wiring board, 17 is an LED, 18 is a fixed contact, 19 is a rubber contact, 19a is a movable contact part, 19b
is the escape part. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A light emitting device in which a light emitting section is provided inside the operating switch, a lens is built into a predetermined part of the operating section opposite to the light emitting section, and the incident surface of the lens on the light emitting section side is larger than the exit surface outside the operating section. In a part-operated switch, the input surface has a curved shape with the light emitting part side convex, and this curved surface shape is such that the light entering from the input surface is totally reflected at the interface between the lens and the operation part and reaches the output surface. An operation switch with a light emitting part, characterized by having a set curvature.