JPS6065625U

JPS6065625U - optical rotary encoder

Info

Publication number: JPS6065625U
Application number: JP15969783U
Authority: JP
Inventors: 岸本　史郎
Original assignee: 三菱電機株式会社
Priority date: 1983-10-13
Filing date: 1983-10-13
Publication date: 1985-05-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来装置の概要を示す斜視図、第２図は第１図
装置の要部を示す正面図、第３図は第２図装置の■−■
線断面を示す接続構成図、第４図ａ、　ｂは第１図〜第
３図に示した従来装置の動作説明図、第５図ａ、　ｂは
それぞれ第４図ａ、　ｂの動作波形図、第６図はこの考
案の一実施例による光学式ロータリーエンコーダの概要
を示す斜視図、第７図は第６図実施例の要部を示す正面
図、・第８図は第７図実施例の■−■線断面の接続構成
図、第９図ａ、　ｂは第６図〜第８図に示した同実施例
の動作説明図である。図に於て、２は回転スリット、板、４はスリット、５及
び１２は遮光板、６及び１３は第１のスリット列、７及
び１４は第２のスリット列、８はＬＥＤ、１０ａ、１０
ｂはＰＴｒである。なお、図中、同一符号は同−又は相
当部分を示す。Fig. 1 is a perspective view showing an overview of the conventional device, Fig. 2 is a front view showing the main parts of the device shown in Fig. 1, and Fig. 3 is a schematic view of the device shown in Fig. 2.
A connection configuration diagram showing a line cross section, FIGS. 4a and 4b are explanatory diagrams of the operation of the conventional device shown in FIGS. 1 to 3, and FIGS. 5a and b are operation waveform diagrams of FIGS. 4a and b, respectively. , Fig. 6 is a perspective view showing an outline of an optical rotary encoder according to an embodiment of this invention, Fig. 7 is a front view showing the main parts of the embodiment of Fig. 6, and Fig. 8 is a diagram showing the embodiment of Fig. 7. FIGS. 9a and 9b are diagrams illustrating the operation of the same embodiment shown in FIGS. 6 to 8. FIGS. In the figure, 2 is a rotating slit, a plate, 4 is a slit, 5 and 12 are light shielding plates, 6 and 13 are first slit rows, 7 and 14 are second slit rows, 8 is an LED, 10a, 10
b is PTr. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A rotating disk fixed to a rotating shaft, a radial first row of slits provided on the rotating disk, and the first slit row being arranged on the same rotating plane at equal division positions, A light-shielding plate having second slit rows arranged in a configuration equal to the rows and arranged parallel to the rotating disk; and further, a light emitting light disposed so as to face each other across the rotating disk and the light-shielding plate. and a first and second light receiving element, the light emitted from the light emitting element passes through a first slit row on the rotating disk and a second slit row on the light shielding plate and reaches each of the light receiving elements. The first light receiving element and the second light receiving element are arranged so that the slit rows are positioned on each optical path of the first light receiving element and the second light receiving element, and the slit rows are arranged at a pitch of one quarter of the first slit row in the rotational direction of the rotating disk. In an optical rotary encoder in which a second slit row is divided into two groups and arranged on a light-shielding plate so as to be biased, the second slit row is divided into two groups in two stages in a radial direction. An optical rotary encoder characterized in that the first light receiving element and the second light receiving element are also arranged in a radial direction.