JPH0285321U

JPH0285321U -

Info

Publication number: JPH0285321U
Application number: JP16504988U
Authority: JP
Priority date: 1988-12-22
Filing date: 1988-12-22
Publication date: 1990-07-04

Description

[Brief explanation of the drawing]

第１図から第４図迄は、本考案による光学式エ
ンコーダを示すためのもので、第１図は全体構成
を示す断面図、第２図は要部の拡大平面図、第３
図は他の実施例を示す要部の拡大平面図、第３Ａ
図及び第３Ｂ図は発光部の他の実施例を示す拡大
正面図、第４図は第１図の要部の他の実施例を示
す拡大正面図、第５図は従来構成を示す断面図で
ある。１は基台、２は軸受、３は回転軸、４は回転ス
リツト円板、５は受光側固定スリツト板、５ｂは
非光反射面、６は受光部、９は発光部、２０はマ
スク体、２０ａは光透過孔、２５は発光側固定ス
リツト板である。 1 to 4 are for showing the optical encoder according to the present invention. FIG. 1 is a sectional view showing the overall configuration, FIG. 2 is an enlarged plan view of the main parts, and FIG.
The figure is an enlarged plan view of main parts showing another embodiment, No. 3A.
3B and 3B are enlarged front views showing other embodiments of the light emitting section, FIG. 4 is an enlarged front view showing other embodiments of the main parts of FIG. 1, and FIG. 5 is a sectional view showing the conventional configuration. It is. 1 is a base, 2 is a bearing, 3 is a rotating shaft, 4 is a rotating slit disk, 5 is a fixed slit plate on the light receiving side, 5b is a non-light reflective surface, 6 is a light receiving part, 9 is a light emitting part, 20 is a mask body , 20a is a light transmission hole, and 25 is a fixed slit plate on the light emitting side.

Claims

[Claims for Utility Model Registration] (1) A rotating shaft 3 rotatably provided on a bearing 2 disposed on a base 1, and a rotating slit disk provided on the rotating shaft 3 and having a large number of rotating slits. 4, a light emitting section 9 disposed near one side of the rotating slit disk 4, and the rotating slit disk 4.
The light-receiving side fixed slit plate 5 includes a light-receiving section 6 disposed near the other surface side and a light-receiving-side fixed slit plate 5 disposed between the rotating slit disk 4 and the light-receiving section 6. An optical encoder characterized in that a non-light reflective surface 5b is formed on the surface of the plate 5. (2) The optical encoder according to claim 1, characterized in that a light-emitting side fixed slit plate 25 is disposed between the light-emitting section 9 and the rotating slit disk 4. (3) The light emitting section 9 is provided with a mask body 20 having a light transmission hole 20a, and the light from the light emitting section 9 is emitted to the outside through the light transmission hole 20a. The optical encoder according to claim 1 or 2.