JPS62155429U

JPS62155429U -

Info

Publication number: JPS62155429U
Application number: JP4346286U
Authority: JP
Priority date: 1986-03-25
Filing date: 1986-03-25
Publication date: 1987-10-02
Also published as: JPH0339872Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は縦断面図、第２図は要部の分解斜視図、第３図
は第１図と異なる状態での縦断面図である。図中、１は第１のフイルム（第１の板状部材）
、２，７は光拡散部、３は遮光フイルム、４はス
ペーサ、４ａは円孔、５は保持板、５ａは透孔部
、６は第２のフイルム（第２の板状部材）、８は
球体（光伝達体）、９は補強板、１０は発光ダイ
オード（投光素子）、１１はホトトランジスタ（
受光素子）を示す。 The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view of the main parts, and FIG. 3 is a longitudinal sectional view in a different state from FIG. 1. In the figure, 1 is the first film (first plate member)
, 2 and 7 are light diffusion parts, 3 is a light-shielding film, 4 is a spacer, 4a is a circular hole, 5 is a holding plate, 5a is a through-hole part, 6 is a second film (second plate-like member), 8 9 is a reinforcing plate, 10 is a light emitting diode (light emitting element), and 11 is a phototransistor (
light receiving element).

Claims

[Scope of utility model registration request]

a retainer plate having a through hole penetrating in the thickness direction;
Light-guiding first lenses are arranged on the upper and lower surfaces of this holding plate in a superimposed manner, each having a substantially equal optical refractive index, and at least one of which is made of a flexible material.
and a second plate-like member, and the inside of the through hole of the holding plate is arranged so as to be in point contact or line contact with the first and second plate-like members, and each of the plate-like members an elastically deformable light transmitting body having substantially the same optical refractive index; a light projecting element arranged to project light into the first plate-like member; and light from within the second plate-like member. and a light-receiving element that is arranged to receive light and generates a switching signal in a light-receiving state,
When the light transmitting body is compressively deformed by the pressing operation of at least one of the first and second plate-like members and the contact area between them increases, the light emitted from the light projecting element is transmitted to both of the plate-like members. and a switch device configured such that light is received by the light receiving element through a light transmitting body.