JPS63190914U - - Google Patents
Info
- Publication number
- JPS63190914U JPS63190914U JP8079887U JP8079887U JPS63190914U JP S63190914 U JPS63190914 U JP S63190914U JP 8079887 U JP8079887 U JP 8079887U JP 8079887 U JP8079887 U JP 8079887U JP S63190914 U JPS63190914 U JP S63190914U
- Authority
- JP
- Japan
- Prior art keywords
- scale plate
- scale
- light
- optical position
- relative movement
- 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 9
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Description
第１図は本考案の一実施例の斜視図、第２図は
本考案の他の実施例の第２のスケール部のみを拡
大して示した平面図、第３図は本考案のさらに他
の実施例を示す正面図、第４図は従来の光学式位
置検出器の一例を示す斜視図である。
１……スケール板、１ａ……第１のスケール部
、１ｂ……第２のスケール部、２……光源、２ａ
……第１の光源、２ｂ……第２の光源、３，３′
……光学位置検出素子、３ａ……第１の光学位置
検出素子、３ｂ……第２の光学位置検出素子、４
……第１の透光スリツト、５−１，５−２〜５−
ｎ……第２の透光スリツト、１０……可動スリツ
ト板、１１……透光スリツト、１２……光源、１
３……光学位置検出素子、θ，θ′……傾斜角度
、ｐ……ピツチ、ｆ……所定距離。
Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is an enlarged plan view of only the second scale portion of another embodiment of the present invention, and Fig. 3 is a further embodiment of the present invention. FIG. 4 is a front view showing an embodiment of the present invention, and FIG. 4 is a perspective view showing an example of a conventional optical position detector. DESCRIPTION OF SYMBOLS 1... Scale plate, 1a... First scale part, 1b... Second scale part, 2... Light source, 2a
...First light source, 2b...Second light source, 3, 3'
...Optical position detection element, 3a...First optical position detection element, 3b...Second optical position detection element, 4
...First transparent slit, 5-1 , 5-2 to 5-
n...Second transparent slit, 10...Movable slit plate, 11...Transparent slit, 12...Light source, 1
3...Optical position detection element, θ, θ'...Inclination angle, p...Pitch, f...Predetermined distance.
Claims (1)
ル板の一側に配置された光源と、該スケール板の
他側に配置された光学位置検出素子とを備え、光
源及び光学位置検出素子とスケール板とを相対移
動させることにより直線的変位量を検出するよう
にした光学式位置検出器において、前記スケール
板をその相対移動方向に直角な方向で２分割して
第１のスケール部及び第２のスケール部となし、
該第１のスケール部にはスケール板の相対移動方
向に対して比較的小さな傾斜角度で穿設した第１
の透光スリツトを設け、該第２のスケール部には
スケール板の相対移動方向に対して前記第１の透
光スリツトの傾斜角度よりも大きな傾斜角度に穿
設した第２の透光スリツトを前記第１の透光スリ
ツトに対応するように設けたことを特徴とする光
学式位置検出器。 A scale plate having a transparent slit, a light source disposed on one side of the scale plate, and an optical position detection element disposed on the other side of the scale plate, the light source, the optical position detection element, and the scale plate In an optical position detector that detects linear displacement by relatively moving the scale plate, the scale plate is divided into two in a direction perpendicular to the direction of relative movement of the scale plate, and a first scale portion and a second scale portion are formed. department,
The first scale portion is provided with a first hole formed at a relatively small inclination angle with respect to the direction of relative movement of the scale plate.
A second light-transmitting slit is provided in the second scale part, and the second light-transmitting slit is bored at an angle of inclination larger than that of the first light-transmitting slit with respect to the direction of relative movement of the scale plate. An optical position detector, characterized in that it is provided so as to correspond to the first light-transmitting slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8079887U JPS63190914U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8079887U JPS63190914U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190914U true JPS63190914U (en) | 1988-12-08 |
Family
ID=30931936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8079887U Pending JPS63190914U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190914U (en) |
-
1987
- 1987-05-29 JP JP8079887U patent/JPS63190914U/ja active Pending