JPH0272925U - - Google Patents
Info
- Publication number
- JPH0272925U JPH0272925U JP15188388U JP15188388U JPH0272925U JP H0272925 U JPH0272925 U JP H0272925U JP 15188388 U JP15188388 U JP 15188388U JP 15188388 U JP15188388 U JP 15188388U JP H0272925 U JPH0272925 U JP H0272925U
- Authority
- JP
- Japan
- Prior art keywords
- scale
- light emitting
- slit
- main scale
- index 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Landscapes
- Optical Transform (AREA)
Description
第１図、第２図はこの考案の一実施例を示し、
第１図はインデツクススケールのスリツト窓群と
発光素子のボンデイングワイヤの位置関係図、第
２図は受光素子の出力を示すグラフで示す図、第
３図〜第１０図は従来の光学式エンコーダを示し
、第３図は概要構造断面図、第４図は第３図の矢
印Ａ方向から見た側面図、第５図は第３図の矢印
Ｂ方向から見た側面図、第６図は第３図の断面Ｃ
Ｃ図、第７図は第５図のインデツクススケールの
スリツト窓群と発光素子のボンデイングワイヤの
位置関係図、第８図はＤ面における断面ＥＥの光
量分布図、第９図はＤ面における断面ＦＦの光量
分布図、第１０図は受光素子の出力を示すグラフ
で示す図である。
図において１は回転軸、２はメインスチール、
３はインデツクススケール、３ａ，３ｂはスリツ
ト窓群、４，５受光素子、６，７は発光素子、６
ａ，７ａはチツプ、６ｄ，７ｄはボンデイングワ
イヤである。なお各図中、同一符号は同一、又は
相当部分を示す。
Figures 1 and 2 show an embodiment of this invention,
Figure 1 is a diagram showing the positional relationship between the index scale slit window group and the bonding wire of the light emitting element, Figure 2 is a graph showing the output of the light receiving element, and Figures 3 to 10 are a diagram of the conventional optical encoder. Fig. 3 is a schematic cross-sectional view of the structure, Fig. 4 is a side view seen from the direction of arrow A in Fig. 3, Fig. 5 is a side view seen from the direction of arrow B in Fig. 3, and Fig. 6 is a side view of the structure. Cross section C in Figure 3
Figure C and Figure 7 are positional relationship diagrams of the slit window group of the index scale in Figure 5 and the bonding wire of the light emitting element, Figure 8 is a light intensity distribution diagram of cross section EE on the D plane, and Figure 9 is a diagram of the light intensity distribution on the D plane. FIG. 10, which is a light intensity distribution diagram of the cross-sectional FF, is a graph showing the output of the light receiving element. In the figure, 1 is the rotation axis, 2 is the main steel,
3 is an index scale, 3a and 3b are slit window groups, 4 and 5 are light receiving elements, 6 and 7 are light emitting elements, 6
A and 7a are chips, and 6d and 7d are bonding wires. In each figure, the same reference numerals indicate the same or equivalent parts.
補正 昭６３．１２．２７
図面の簡単な説明を次のように補正する。
明細書第７頁第１９行目の「メインスチール」
を「メインスケール」と訂正する。Amendment December 27, 1983 The brief description of the drawing is amended as follows. "Main steel" on page 7, line 19 of the specification
is corrected as "main scale".
Claims (1)
えたメインスケールと、該メインスケールと対向
し、電気的に１８０°位相のずれたスリツト窓群
を有したインデツクススケールと、該インデツク
ススケールと上記メインスケールの両側に対向し
て配置された少なくとも２個の発光素子と少なく
とも２個の受光素子を有するものにおいて、上記
発光素子のボンデイングワイヤの長手方向の中心
線を、上記インデツクススケールのスリツト窓群
中心線に対して、左右対称に配置したことを特徴
とした光学式エンコーダ。 A main scale with slit windows of equal pitch fixed to a rotating shaft, an index scale with a group of slit windows facing the main scale and electrically out of phase by 180°, and the index scale. In the device having at least two light emitting elements and at least two light receiving elements disposed facing each other on both sides of the main scale, the longitudinal center line of the bonding wire of the light emitting element is aligned with the slit of the index scale. An optical encoder characterized by being arranged symmetrically with respect to the center line of the window group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988151883U JPH0731128Y2 (en) | 1988-11-22 | 1988-11-22 | Optical encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988151883U JPH0731128Y2 (en) | 1988-11-22 | 1988-11-22 | Optical encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0272925U true JPH0272925U (en) | 1990-06-04 |
| JPH0731128Y2 JPH0731128Y2 (en) | 1995-07-19 |
Family
ID=31426318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988151883U Expired - Lifetime JPH0731128Y2 (en) | 1988-11-22 | 1988-11-22 | Optical encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731128Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63217222A (en) * | 1987-03-06 | 1988-09-09 | Mitsutoyo Corp | Photoelectric displacement detecting device |
-
1988
- 1988-11-22 JP JP1988151883U patent/JPH0731128Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63217222A (en) * | 1987-03-06 | 1988-09-09 | Mitsutoyo Corp | Photoelectric displacement detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731128Y2 (en) | 1995-07-19 |
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