JPH01107918U - - Google Patents
Info
- Publication number
- JPH01107918U JPH01107918U JP225688U JP225688U JPH01107918U JP H01107918 U JPH01107918 U JP H01107918U JP 225688 U JP225688 U JP 225688U JP 225688 U JP225688 U JP 225688U JP H01107918 U JPH01107918 U JP H01107918U
- Authority
- JP
- Japan
- Prior art keywords
- rotational position
- position detection
- rows
- slits
- photodetector
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000003491 array Methods 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案にかかる光検出器の一実施例の
構成図、第２図は従来における光学式のロータリ
ーエンコーダに用いる符号板の構成例を示した図
、第３図は第２図のエンコーダに使用する光検出
器の構成例を示した図である。
２０…チツプ、２１，２２…フオトダイオード
アレイ、２３，２３１，２３２…原点検出用フオ
トダイオード、２４，２５…信号処理回路。
Fig. 1 is a block diagram of an embodiment of the photodetector according to the present invention, Fig. 2 is a block diagram showing an example of the structure of a code plate used in a conventional optical rotary encoder, and Fig. 3 is a block diagram of an embodiment of the photodetector according to the present invention. It is a diagram showing an example of the configuration of a photodetector used in an encoder. 20... Chip, 21, 22... Photo diode array, 23, 23 1 , 23 2 ... Photo diode for origin detection, 24, 25... Signal processing circuit.
Claims (1)
のピツチで２列の回転位置検出用スリツト列が形
成されている光学式のロータリーエンコーダに用
い、この符号板のスリツトの通過光を検出する光
検出器において、 前記２列の回転位置検出用スリツトを通過した
光をそれぞれ検出する２個の回転位置検出用フオ
トダイオードアレイと、これらのフオトダイオー
ドアレイの検出信号の処理回路が１チツプ内に形
成されたことを特徴とする光検出器。[Claims for Utility Model Registration] Used in an optical rotary encoder in which the code plate is disc-shaped and has two rows of rotational position detection slit rows formed at predetermined pitches along the circumferential direction; The photodetector for detecting the light passing through the slits of the code plate includes two photodiode arrays for rotational position detection, each of which detects the light passing through the two rows of slits for rotational position detection; A photodetector characterized in that a detection signal processing circuit is formed within one chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP225688U JPH01107918U (en) | 1988-01-12 | 1988-01-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP225688U JPH01107918U (en) | 1988-01-12 | 1988-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01107918U true JPH01107918U (en) | 1989-07-20 |
Family
ID=31202867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP225688U Pending JPH01107918U (en) | 1988-01-12 | 1988-01-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01107918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020932A (en) * | 2012-07-18 | 2014-02-03 | Mitsutoyo Corp | Photodetector for photoelectric encoder and photoelectric encoder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224315B2 (en) * | 1982-10-12 | 1987-05-27 | Yoshitaka Kuroki |
-
1988
- 1988-01-12 JP JP225688U patent/JPH01107918U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224315B2 (en) * | 1982-10-12 | 1987-05-27 | Yoshitaka Kuroki |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020932A (en) * | 2012-07-18 | 2014-02-03 | Mitsutoyo Corp | Photodetector for photoelectric encoder and photoelectric encoder |
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