JPH0175818U - - Google Patents
Info
- Publication number
- JPH0175818U JPH0175818U JP1987171416U JP17141687U JPH0175818U JP H0175818 U JPH0175818 U JP H0175818U JP 1987171416 U JP1987171416 U JP 1987171416U JP 17141687 U JP17141687 U JP 17141687U JP H0175818 U JPH0175818 U JP H0175818U
- Authority
- JP
- Japan
- Prior art keywords
- light
- rotating plate
- emitting element
- rotating
- transmit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案の一実施例の斜視図、第２図は
第１図のスリツト付円板の部分拡大図、第３図は
第１図の発光素子と受光素子の取付を説明する断
面図、第４図は上記実施例のブロツク図、第５図
は上記実施例の波形図、第６図は他の実施例を示
すスリツト付円板の部分拡大図、第７図は他の実
施例を示すスリツト付円板の部分拡大図、第８図
は従来例の斜視図、第９図は従来例のスリツト付
円板の部分拡大図である。
１……回転軸、２……スリツト付円板、３ａ…
…回転数検出用スリツト、３ｂ……位置基準用ス
リツト、４ａ，４ｂ……発光素子、５ａ，５ｂ…
…受光素子、９ａ，９ｂ，９ｃ……コンパレータ
、１０……Ｄ型フリツプフロツプ回路。
Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a partially enlarged view of the disc with slits shown in Fig. 1, and Fig. 3 is a cross section illustrating the attachment of the light emitting element and light receiving element shown in Fig. 1. Fig. 4 is a block diagram of the above embodiment, Fig. 5 is a waveform diagram of the above embodiment, Fig. 6 is a partially enlarged view of a disk with slits showing another embodiment, and Fig. 7 is another embodiment. FIG. 8 is a perspective view of a conventional example, and FIG. 9 is a partial enlarged view of a conventional disk with slits. 1... Rotating shaft, 2... Disc with slit, 3a...
...Slit for rotation speed detection, 3b...Slit for position reference, 4a, 4b...Light emitting element, 5a, 5b...
...Photodetector, 9a, 9b, 9c...Comparator, 10...D-type flip-flop circuit.
Claims (1)
分と遮蔽する部分とが交互に配列されたパターン
を有すると共に回転体の回転軸に固定された回転
板と、該回転板からの透過光を受光する受光素子
とを備え、上記回転板に配列されたパターンの上
記光を透過する部分のうち、少なくとも１つが他
の光を透過する部分に比べて光の透過量が小さく
なるようにしてあることを特徴とする光学式ロー
タリーエンコーダ。 A light-emitting element, a rotating plate having a pattern in which parts that transmit light from the light-emitting element and parts that block light from the light-emitting element are arranged alternately, and a rotating plate fixed to a rotating shaft of a rotating body, and a rotating plate that transmits light transmitted from the rotating plate. and a light-receiving element that receives light, and at least one of the light-transmitting portions of the pattern arranged on the rotary plate is configured to transmit a smaller amount of light than the other light-transmitting portions. An optical rotary encoder characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171416U JPH0175818U (en) | 1987-11-11 | 1987-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171416U JPH0175818U (en) | 1987-11-11 | 1987-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0175818U true JPH0175818U (en) | 1989-05-23 |
Family
ID=31463231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171416U Pending JPH0175818U (en) | 1987-11-11 | 1987-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0175818U (en) |
-
1987
- 1987-11-11 JP JP1987171416U patent/JPH0175818U/ja active Pending
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