JPH02618U - - Google Patents
Info
- Publication number
- JPH02618U JPH02618U JP7773688U JP7773688U JPH02618U JP H02618 U JPH02618 U JP H02618U JP 7773688 U JP7773688 U JP 7773688U JP 7773688 U JP7773688 U JP 7773688U JP H02618 U JPH02618 U JP H02618U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- optical sensor
- parts
- detection pattern
- light
- 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 15
- 239000011521 glass Substances 0.000 claims 3
- 230000003287 optical effect Effects 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Optical Transform (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7773688U JPH02618U (en:Method) | 1988-06-14 | 1988-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7773688U JPH02618U (en:Method) | 1988-06-14 | 1988-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02618U true JPH02618U (en:Method) | 1990-01-05 |
Family
ID=31302701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7773688U Pending JPH02618U (en:Method) | 1988-06-14 | 1988-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02618U (en:Method) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06160061A (ja) * | 1992-11-26 | 1994-06-07 | Seikosha Co Ltd | 回転体の位置検出装置 |
| WO2005050141A1 (ja) * | 2003-11-20 | 2005-06-02 | Mitsubishi Denki Kabushiki Kaisha | 光学式エンコーダ |
-
1988
- 1988-06-14 JP JP7773688U patent/JPH02618U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06160061A (ja) * | 1992-11-26 | 1994-06-07 | Seikosha Co Ltd | 回転体の位置検出装置 |
| WO2005050141A1 (ja) * | 2003-11-20 | 2005-06-02 | Mitsubishi Denki Kabushiki Kaisha | 光学式エンコーダ |
| US7285769B2 (en) | 2003-11-20 | 2007-10-23 | Mitsubishi Denki Kabushiki Kaisha | Optical encoder with reduced reflected light error having a light non-transparent portion with inclined surfaces |
| US7538313B2 (en) | 2003-11-20 | 2009-05-26 | Mitsubishi Denki Kabushiki Kaisha | Optical encoder having a no track portion of an optical scale being placed at a position symmetrical to a light non-transparent portion within an irradiation region of incident light |
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