JPS6340035U - - Google Patents
Info
- Publication number
- JPS6340035U JPS6340035U JP13381486U JP13381486U JPS6340035U JP S6340035 U JPS6340035 U JP S6340035U JP 13381486 U JP13381486 U JP 13381486U JP 13381486 U JP13381486 U JP 13381486U JP S6340035 U JPS6340035 U JP S6340035U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- hole
- semiconductor laser
- lens holder
- 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.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Optical Transform (AREA)
- Analogue/Digital Conversion (AREA)
Description
第１図は本考案の一実施例に係るロータリーエ
ンコーダ要部の一部を断面にした図、第２図はレ
ンズホルダーを回転したときの光路の変化を示す
説明図、第３図は従来のロータリーエンコーダの
概略構成図、第４図は出力波形図である。
３０…回転符号板、４０…受光素子、５０…基
板、５２…孔、６０…半導体レーザ、５４…中心
線、７０…レンズホルダー、８０…レンズ。
Fig. 1 is a cross-sectional view of a part of the main part of a rotary encoder according to an embodiment of the present invention, Fig. 2 is an explanatory diagram showing changes in the optical path when the lens holder is rotated, and Fig. 3 is a diagram of a conventional rotary encoder. A schematic configuration diagram of the rotary encoder, and FIG. 4 is an output waveform diagram. 30... Rotation code plate, 40... Light receiving element, 50... Substrate, 52... Hole, 60... Semiconductor laser, 54... Center line, 70... Lens holder, 80... Lens.
Claims (1)
レーザと、円周方向に沿つて複数のスリツトが形
成された回転符号板と、該スリツトを透過した半
導体レーザの光を受光する受光素子と、半導体レ
ーザと回転符号板の間に位置するレンズと、該レ
ンズを保持したレンズホルダーとを備えたロータ
リーエンコーダにおいて、レンズホルダーを基板
の孔に回転自在に取付けるとともに、レンズを該
孔の中心線から偏心させてレンズホルダーに固定
したことを特徴とするロータリーエンコーダ。 a semiconductor laser fixed to a substrate having a hole for light passage; a rotary code plate having a plurality of slits formed along the circumferential direction; a light-receiving element that receives the light of the semiconductor laser transmitted through the slits; In a rotary encoder equipped with a lens located between a semiconductor laser and a rotary code plate, and a lens holder holding the lens, the lens holder is rotatably attached to a hole in a substrate, and the lens is decentered from the center line of the hole. A rotary encoder characterized by being fixed to a lens holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13381486U JPH0425616Y2 (en) | 1986-09-01 | 1986-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13381486U JPH0425616Y2 (en) | 1986-09-01 | 1986-09-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6340035U true JPS6340035U (en) | 1988-03-15 |
| JPH0425616Y2 JPH0425616Y2 (en) | 1992-06-19 |
Family
ID=31034469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13381486U Expired JPH0425616Y2 (en) | 1986-09-01 | 1986-09-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425616Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59167743U (en) * | 1983-04-26 | 1984-11-09 | 三浦 義範 | Vehicle collision prevention indicator |
| JPH0376311U (en) * | 1989-11-27 | 1991-07-31 |
-
1986
- 1986-09-01 JP JP13381486U patent/JPH0425616Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59167743U (en) * | 1983-04-26 | 1984-11-09 | 三浦 義範 | Vehicle collision prevention indicator |
| JPH0376311U (en) * | 1989-11-27 | 1991-07-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425616Y2 (en) | 1992-06-19 |
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