JPS6325320U - - Google Patents
Info
- Publication number
- JPS6325320U JPS6325320U JP11911686U JP11911686U JPS6325320U JP S6325320 U JPS6325320 U JP S6325320U JP 11911686 U JP11911686 U JP 11911686U JP 11911686 U JP11911686 U JP 11911686U JP S6325320 U JPS6325320 U JP S6325320U
- Authority
- JP
- Japan
- Prior art keywords
- speed detection
- rotational speed
- substrate
- detection pattern
- reflection type
- 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 13
- 239000000758 substrate Substances 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
Landscapes
- Optical Transform (AREA)
Description
第１図及び第２図は夫々本考案光反射式回転速
度検出装置の一実施例の要部を示す断面図及び分
解斜視図、第３図はプリント基板９の開口部１９
と反射形ホトインタラプタ１０の大小関係を示す
線図、第４図は第１図例における回転速度検出用
パターン７とスポツトサイズとの関係を示す線図
、第５図及び第６図は夫々従来の光反射式回転速
度検出装置の要部を示す断面図及び分解斜視図、
第７図は第５図例における回転速度検出用パター
ンとスポツトサイズとの関係を示す線図、第８図
及び第９図は夫々本発明の説明に供する線図であ
る。
１はターンテーブル、３はターンテーブル基部
、７は回転速度検出用パターン、７Ａは反射パタ
ーン、７Ｂは吸収パターン、８は回転速度検出用
パターン板、９はプリント基板、１０は反射形ホ
トインタラプタ、１１は発光部、１１Ａは発光部
面、１２は受光部、１２Ａは受光部面、１９は開
口部である。
1 and 2 are a cross-sectional view and an exploded perspective view, respectively, showing essential parts of an embodiment of the light reflection type rotational speed detection device of the present invention, and FIG. 3 is an opening 19 of the printed circuit board 9.
FIG. 4 is a diagram showing the relationship between the rotational speed detection pattern 7 and the spot size in the example shown in FIG. 1, and FIGS. A sectional view and an exploded perspective view showing the main parts of the light reflection type rotation speed detection device,
FIG. 7 is a diagram showing the relationship between the rotational speed detection pattern and the spot size in the example shown in FIG. 5, and FIGS. 8 and 9 are diagrams for explaining the present invention, respectively. 1 is a turntable, 3 is a turntable base, 7 is a rotational speed detection pattern, 7A is a reflection pattern, 7B is an absorption pattern, 8 is a rotational speed detection pattern plate, 9 is a printed circuit board, 10 is a reflective photointerrupter, 11 is a light emitting part, 11A is a light emitting part surface, 12 is a light receiving part, 12A is a light receiving part surface, and 19 is an opening part.
Claims (1)
に該回転速度検出用パターンに対向して基板を配
し、該基板に発光部と受光部とを近接して有する
光検出器を配する様に成された光反射式回転速度
検出装置において、上記基板に開口部を設け、該
開口部を通して上記光検出器の発光部面と受光部
面とが上記回転速度検出用パターンと対向する様
に上記光検出器を上記基板の上記回転速度検出用
パターンとは反対側の面に配する様にしたことを
特徴とする光反射式回転速度検出装置。 A rotational speed detection pattern is provided on the rotating part, a substrate is arranged opposite to the rotational speed detection pattern, and a photodetector having a light emitting part and a light receiving part close to each other is arranged on the substrate. In the light reflection type rotational speed detection device, an opening is provided in the substrate, and the photodetector is configured such that the light emitting surface and the light receiving surface of the photodetector face the rotational speed detection pattern through the opening. 1. A light reflection type rotation speed detection device, characterized in that a light reflection type rotation speed detection device is arranged on a surface of the substrate opposite to the rotation speed detection pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11911686U JPS6325320U (en) | 1986-08-02 | 1986-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11911686U JPS6325320U (en) | 1986-08-02 | 1986-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6325320U true JPS6325320U (en) | 1988-02-19 |
Family
ID=31006194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11911686U Pending JPS6325320U (en) | 1986-08-02 | 1986-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325320U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329469U (en) * | 1976-08-12 | 1978-03-13 | ||
| JPS5886413A (en) * | 1981-11-19 | 1983-05-24 | Matsushita Electric Ind Co Ltd | Sine wave encoder |
-
1986
- 1986-08-02 JP JP11911686U patent/JPS6325320U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329469U (en) * | 1976-08-12 | 1978-03-13 | ||
| JPS5886413A (en) * | 1981-11-19 | 1983-05-24 | Matsushita Electric Ind Co Ltd | Sine wave encoder |
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