JPS63141420U - - Google Patents
Info
- Publication number
- JPS63141420U JPS63141420U JP3429887U JP3429887U JPS63141420U JP S63141420 U JPS63141420 U JP S63141420U JP 3429887 U JP3429887 U JP 3429887U JP 3429887 U JP3429887 U JP 3429887U JP S63141420 U JPS63141420 U JP S63141420U
- Authority
- JP
- Japan
- Prior art keywords
- pit pattern
- detection device
- recording layer
- substrate
- recorded
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 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を示す装置の斜視図
、第２図は同上装置に使用する符号板の一実施例
を示す断面図である。
１……符号板、１１……基板、１２……取付穴
、１３……記録層、１４……保護層、１５……ピ
ツトパターン、２……ピツトパターン検出装置。
FIG. 1 is a perspective view of a device showing an embodiment of the present invention, and FIG. 2 is a sectional view showing an embodiment of a code plate used in the same device. DESCRIPTION OF SYMBOLS 1... Code plate, 11... Substrate, 12... Mounting hole, 13... Recording layer, 14... Protective layer, 15... Pit pattern, 2... Pit pattern detection device.
Claims (1)
る記録層を形成するとともに、前記記録層に位置
情報を示すピツトパターンを記録し、前記ピツト
パターンに対向させて光学的に検出するピツトパ
ターン検出装置を配設してなる光学式角度検出装
置。 A recording layer whose optical characteristics are changed by a light beam is formed on the surface of the substrate, a pit pattern indicating position information is recorded on the recording layer, and a pit pattern detection device for optically detecting the pit pattern is arranged opposite to the pit pattern. Optical angle detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3429887U JPS63141420U (en) | 1987-03-07 | 1987-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3429887U JPS63141420U (en) | 1987-03-07 | 1987-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63141420U true JPS63141420U (en) | 1988-09-19 |
Family
ID=30842712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3429887U Pending JPS63141420U (en) | 1987-03-07 | 1987-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141420U (en) |
-
1987
- 1987-03-07 JP JP3429887U patent/JPS63141420U/ja active Pending
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