JPS63161318U - - Google Patents
Info
- Publication number
- JPS63161318U JPS63161318U JP5553387U JP5553387U JPS63161318U JP S63161318 U JPS63161318 U JP S63161318U JP 5553387 U JP5553387 U JP 5553387U JP 5553387 U JP5553387 U JP 5553387U JP S63161318 U JPS63161318 U JP S63161318U
- Authority
- JP
- Japan
- Prior art keywords
- optical encoder
- light
- reticle
- view
- scale
- 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 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Optical Transform (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図〜第７図はこの考案の一実施例を示した
ものであつて、第１図Ａは検出出力を説明する波
形図、第１図Ｂは上記検出出力に対応させたトラ
ツキングの説明図、第２図はレテイクルのスリツ
トパターンの配置を説明する平面図、第３図はク
ロストークを説明する断面図、第４図は記録再生
装置全体の断面図、第５図は光学式エンコーダの
分解斜視図、第６図は光学式エンコーダの部分断
面図、第７図は光学式エンコーダの部分平面図で
ある。第８図〜第１０図は従来例を示したもので
あつて、第８図はレテイクルのスリツトパターン
の配置を説明する平面図、第９図はクロストーク
を説明する断面図、第１０図Ａは検出出力を説明
する波形図、第１０図Ｂは上記検出出力に対応さ
せたトラツキングの説明図である。
なお図面に用いられている符号において、１６
……光学式エンコーダ、１７……発光素子、１８
……受光素子、１９……スケール、２０……レテ
イクル、２０ａ……スリツトパターン、Ａ，，
Ｂ，……スリツトパターンの位相である。
Figures 1 to 7 show an embodiment of this invention, in which Figure 1A is a waveform diagram explaining the detection output, and Figure 1B is an explanation of tracking corresponding to the detection output. Figure 2 is a plan view explaining the arrangement of the slit pattern of the reticle, Figure 3 is a sectional view explaining crosstalk, Figure 4 is a sectional view of the entire recording/reproducing device, and Figure 5 is an optical encoder. FIG. 6 is a partial sectional view of the optical encoder, and FIG. 7 is a partial plan view of the optical encoder. 8 to 10 show a conventional example, in which FIG. 8 is a plan view explaining the arrangement of the slit pattern of the reticle, FIG. 9 is a cross-sectional view explaining crosstalk, and FIG. 10 A is a waveform diagram illustrating the detection output, and FIG. 10B is a diagram illustrating tracking corresponding to the detection output. In addition, in the symbols used in the drawings, 16
...Optical encoder, 17...Light emitting element, 18
... Light receiving element, 19 ... Scale, 20 ... Reticle, 20a ... Slit pattern, A,,
B, . . . is the phase of the slit pattern.
Claims (1)
れて相対的に移動されるスケール及びレテイクル
とからなる光学式エンコーダにおいて、 前記レテイクルに設けられて前記スケールの長
さ方向において互いに近接された２つのスリツト
パターンの位相を１８０°に設定したことを特徴
とする光学式エンコーダ。[Claims for Utility Model Registration] An optical encoder comprising a light-emitting element, a light-receiving element, a scale and a reticle that are disposed between these and are relatively movable; An optical encoder characterized in that the phases of two slit patterns that are close to each other in the horizontal direction are set at 180°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5553387U JPS63161318U (en) | 1987-04-13 | 1987-04-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5553387U JPS63161318U (en) | 1987-04-13 | 1987-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63161318U true JPS63161318U (en) | 1988-10-21 |
Family
ID=30883514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5553387U Pending JPS63161318U (en) | 1987-04-13 | 1987-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161318U (en) |
-
1987
- 1987-04-13 JP JP5553387U patent/JPS63161318U/ja active Pending
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