JPH0221513U - - Google Patents
Info
- Publication number
- JPH0221513U JPH0221513U JP9961488U JP9961488U JPH0221513U JP H0221513 U JPH0221513 U JP H0221513U JP 9961488 U JP9961488 U JP 9961488U JP 9961488 U JP9961488 U JP 9961488U JP H0221513 U JPH0221513 U JP H0221513U
- Authority
- JP
- Japan
- Prior art keywords
- fixed substrate
- rotary disk
- optical encoder
- slit rows
- thin film
- 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
- 239000000758 substrate Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 2
Landscapes
- Optical Transform (AREA)
Description
第１図はこの考案の一実施例による光学式エン
コーダを示す基本構造断面図、第２図は従来の光
学式エンコーダを示す基本構造断面図である。
図において、１はレンズ付発光素子、２は受光
素子、３は回転デイスク、４は固定基板、５は格
子パターン、１１は誘電体光学薄膜である。なお
図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a sectional view of the basic structure of an optical encoder according to an embodiment of this invention, and FIG. 2 is a sectional view of the basic structure of a conventional optical encoder. In the figure, 1 is a light emitting element with a lens, 2 is a light receiving element, 3 is a rotating disk, 4 is a fixed substrate, 5 is a grating pattern, and 11 is a dielectric optical thin film. In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
の間に１つ以上のスリツト列を有する回転デイス
クまたは可動直尺と、１つ以上のスリツト列を有
する固定基板より構成される光学式エンコーダに
おいて、前記回転デイスクまたは直尺及び前記固
定基板の表裏に誘電体光学薄膜を１層以上適切な
厚さ形成したことを特徴とする光学式エンコーダ
。 An optical encoder comprising a rotary disk or movable straight rod having one or more slit rows between one or more pairs of mutually opposing light emitting elements and light receiving elements, and a fixed substrate having one or more slit rows, An optical encoder characterized in that one or more layers of a dielectric optical thin film are formed to an appropriate thickness on the front and back surfaces of the rotary disk or straight scale and the fixed substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9961488U JPH0221513U (en) | 1988-07-27 | 1988-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9961488U JPH0221513U (en) | 1988-07-27 | 1988-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221513U true JPH0221513U (en) | 1990-02-13 |
Family
ID=31326938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9961488U Pending JPH0221513U (en) | 1988-07-27 | 1988-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221513U (en) |
-
1988
- 1988-07-27 JP JP9961488U patent/JPH0221513U/ja active Pending