JPH026215U

JPH026215U -

Info

Publication number: JPH026215U
Application number: JP8470188U
Authority: JP
Priority date: 1988-06-27
Filing date: 1988-06-27
Publication date: 1990-01-16
Anticipated expiration: 2003-06-27
Also published as: JPH0546016Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の斜視図、第２図は
同上の断面図、第３図は光導波路の断面図、第４
図は光配線板を備える電子回路ブロツクの斜視図
、第５図は従来例の斜視図、第６図は同上の動作
説明のための断面図、第７図は従来例の斜視図で
ある。１はカム、３は操作つまみ、４は光配線板、１
１は角孔、１２はシヤフト、２１は遮光体、２２
は透光窓、１４ａ，１４ｂは光導波路、３０は突
起である。 FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of an optical waveguide, and FIG.
5 is a perspective view of an electronic circuit block including an optical wiring board, FIG. 5 is a perspective view of a conventional example, FIG. 6 is a sectional view for explaining the operation of the same, and FIG. 7 is a perspective view of the conventional example. 1 is a cam, 3 is an operation knob, 4 is an optical wiring board, 1
1 is a square hole, 12 is a shaft, 21 is a light shield, 22
14 is a transparent window, 14a and 14b are optical waveguides, and 30 is a protrusion.

Claims

[Scope of Claim for Utility Model Registration] (1) Light projecting means for projecting light onto a detection area, light receiving means for receiving reflected waves from objects within the detection area, and detecting the presence or absence of an object based on the output of the light receiving means. and a signal processing means for making a calculation judgment and outputting an object detection signal, the operation display section and the electronic circuit section of each of the above means are optically connected by an optical wiring board formed using an optical waveguide, a mirror, etc., and the above-mentioned It is used in an optical sensor in which a sensor function setting part for setting sensitivity etc. is formed on an optical wiring board using an optical waveguide. , a light-shielding body having a transparent window perforated therethrough that allows light from the optical waveguide inserted into the square hole and separated by the square hole to pass through, and a plate that urges the light-shielding body inserted into the square hole in a direction to be removed. a spring, a cam with which the top surface of the light shield comes into elastic contact; an operating knob formed on the top surface of the light shield, the cam being integrally formed with the shaft and allowing the light shield to be freely inserted into and removed from the square hole; An optical volume characterized by comprising a guide for guiding the movement of a light shielding body by a shaft. (2) Multiple optical waveguides are divided by square holes, and multiple light shielding bodies inserted into the square holes can be freely inserted and removed using multiple cams formed on one shaft of the operating knob. In the optical volume that
2. The optical volume according to claim 1, wherein the light shielding guide is sandwiched between cams.