JPH0249145U

JPH0249145U -

Info

Publication number: JPH0249145U
Application number: JP12709488U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-05

Description

[Brief explanation of drawings]

第１図は本考案を適用することができる一例で
ある反射型フオトセンサの断面図、第２図以下は
本考案の実施例を示し、第２図はケースと防塵部
材の接着部の断面図、第３図も同部分の断面図、
第４図は全体断面図、第５図は平面図、第６図以
下は加圧部材により防塵部材をケース面に密着さ
せる場合の実施例を示し第６図は断面図、第７図
ａは断面図、第７図ｂは第７図ａのＢ−Ｂ断面図
、第８図は正面図、第９図ａは断面図、第９図ｂ
は第９図ａのＢ−Ｂ断面図である。１……ケース、２，３……発光側及び受光側光
ガイド、２−１，３−１……発光側及び受光側光
ガイド開口部、４……発光ダイオード（発光素子
）、５……フオトトランジスタ（受光素子）、６
……ガラス（防塵部材）、７……溝、８……ガラ
ス押え（加圧部材）、９……接着部。 FIG. 1 is a sectional view of a reflective photo sensor which is an example to which the present invention can be applied, FIG. Figure 3 is also a cross-sectional view of the same part.
Figure 4 is an overall sectional view, Figure 5 is a plan view, Figures 6 and below show an embodiment in which the dustproof member is brought into close contact with the case surface by a pressure member, Figure 6 is a sectional view, and Figure 7a is a 7b is a sectional view taken along line B-B of FIG. 7a, FIG. 8 is a front view, FIG. 9a is a sectional view, and FIG. 9b is a sectional view.
is a sectional view taken along line B-B in FIG. 9a. 1... Case, 2, 3... Light emitting side and light receiving side light guide, 2-1, 3-1... Light emitting side and light receiving side light guide opening, 4... Light emitting diode (light emitting element), 5... Phototransistor (light receiving element), 6
...Glass (dustproof member), 7...Groove, 8...Glass presser (pressure member), 9...Adhesive portion.

Claims

[Scope of Claim for Utility Model Registration] (1) A light emitting side of a case in which a light emitting element that irradiates light to a detected object and a light receiving element that receives reflected light from the detected object are each integrally formed. In a reflective photo sensor that is provided in a light guide and a light receiving side light guide, and the surface of the case where both light guides are open is covered with a dustproof member, the space between the openings of the case surface is A reflective photo sensor comprising: an adhesive portion for adhering the dustproof member to the case; and a groove between the adhesive portion and both openings. (2) A light-emitting element that irradiates light to an object to be detected and a light-receiving element that receives light reflected from the object to be detected are installed in the light-emitting side light guide and the light-receiving side light guide, respectively, of an integrally formed case. In the reflective photo sensor, the surface of the case in which both the light guides are open is covered with a dustproof member, wherein the case includes a pressure member having a pressure part integrally formed with the case. A reflection type photo sensor, wherein the pressure member brings the dustproof member into close contact between both openings of the case surface where both the light guides are opened.