JPH045662U

JPH045662U -

Info

Publication number: JPH045662U
Application number: JP4633590U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-20

Description

[Brief explanation of the drawing]

第１図は本考案第一実施例の光結合装置を示す
平面図、第２図は本考案第二実施例の光結合装置
を示す平面図、第３図は同じくその出力波形図、
第４図は従来技術１に係る光結合装置の平面図、
第５図は同じくその斜視図、第６図は同じくその
スリツトを形成するための金型を示す斜視図、第
７図は従来技術２に係る光結合装置の斜視図、第
８図は同じくその出力波形図である。１１……光結合装置本体、１２……発光素子、
１３……受光素子、１５……通過路、１６……発
光面、１７……投光窓、１８……受光面、１９…
…採光窓。 FIG. 1 is a plan view showing an optical coupling device according to a first embodiment of the present invention, FIG. 2 is a plan view showing an optical coupling device according to a second embodiment of the present invention, and FIG. 3 is a diagram of its output waveform.
FIG. 4 is a plan view of an optical coupling device according to prior art 1;
FIG. 5 is a perspective view of the same, FIG. 6 is a perspective view of a mold for forming the slit, FIG. 7 is a perspective view of the optical coupling device according to Prior Art 2, and FIG. 8 is a perspective view of the same. It is an output waveform diagram. 11... Optical coupling device main body, 12... Light emitting element,
13... Light receiving element, 15... Passing path, 16... Light emitting surface, 17... Light projecting window, 18... Light receiving surface, 19...
...Lighting window.

Claims

[Scope of utility model registration request]

The presence or absence of an object to be detected is detected without contact, and a light emitting element and a light receiving element are arranged opposite to each other across a passage of the object to be detected, so as to be optically coupled inside an optical coupling device main body. A light emitting window for projecting light from the light emitting element to the light receiving element side is formed on the light emitting surface of the device main body, and the light emitted from the light projecting window is formed on the light receiving surface of the device main body. In an optical coupling device in which a lighting window for directing light from an element to the light receiving element is formed, the lighting window is eccentric with respect to the light projection window in a direction perpendicular to the optical axis, and
An optical coupling device characterized in that a light projection window and a daylight window are arranged so as to overlap each other with a width smaller than that of each window.