JPH0372314U

JPH0372314U -

Info

Publication number: JPH0372314U
Application number: JP13342889U
Authority: JP
Priority date: 1989-11-16
Filing date: 1989-11-16
Publication date: 1991-07-22

Description

[Brief explanation of drawings]

第１図Ａ，Ｂは、本考案の光学式角度検出装置
の概略構成を示す図、第２図はＣＣＤセンサの感
光部と円板の中心線との関係を示す図、第３図Ａ
，Ｂはそれぞれ円板のスリツトパターンを示す図
、第４図はＣＣＤセンサより信号を取り出し出力
信号を得るための基本回路構成を示すブロツク図
、第５図は信号処理回路に加えられるの信号のタ
イミングチヤート図、第６図は信号処理回路にお
ける信号処理の方向の流れを示すフローチヤート
図である。図中、１……発光ダイオード、２……レンズ、
３……円板、４……ＣＣＤセンサ、５……感光部
、６……中心線、７……回転軸、８……ＣＣＤセ
ンサ制御回路、９……信号処理回路。 Figures 1A and 1B are diagrams showing the schematic configuration of the optical angle detection device of the present invention, Figure 2 is a diagram showing the relationship between the photosensitive part of the CCD sensor and the center line of the disk, and Figure 3A
, B are diagrams showing the slit pattern of the disk, Figure 4 is a block diagram showing the basic circuit configuration for extracting signals from the CCD sensor and obtaining output signals, and Figure 5 is a diagram showing the signals added to the signal processing circuit. FIG. 6 is a flowchart showing the direction of signal processing in the signal processing circuit. In the figure, 1... light emitting diode, 2... lens,
3... Disk, 4... CCD sensor, 5... Photosensitive section, 6... Center line, 7... Rotating shaft, 8... CCD sensor control circuit, 9... Signal processing circuit.

Claims

[Scope of Claim for Utility Model Registration] (1) A light source made of a light emitting element or a combination of a light emitting element and a lens, a plurality of reference slits in one track (circular ring), and a plurality of reference slits mounted on a rotating shaft, and between each reference slit. a rotary plate provided with an information slit for identifying the reference slit, and arranged perpendicularly to the reference slit;
An optical angle detection device comprising: a photosensitive section having a linear image sensor that receives light from the light source. (2) The optical angle detection device according to claim (1), characterized in that a plurality of reference slits having different slit widths are provided within one track of the rotary plate. (3) The optical angle detection device according to claim (1) or (2), wherein the slits formed in the rotary plate have a slit-like pattern that transmits or reflects light from the light source.