JPS6210641Y2 - - Google Patents
Info
- Publication number
- JPS6210641Y2 JPS6210641Y2 JP7366481U JP7366481U JPS6210641Y2 JP S6210641 Y2 JPS6210641 Y2 JP S6210641Y2 JP 7366481 U JP7366481 U JP 7366481U JP 7366481 U JP7366481 U JP 7366481U JP S6210641 Y2 JPS6210641 Y2 JP S6210641Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- scale
- output
- signals
- lens
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000001427 coherent effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000010363 phase shift Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7366481U JPS6210641Y2 (de) | 1981-05-21 | 1981-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7366481U JPS6210641Y2 (de) | 1981-05-21 | 1981-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57185918U JPS57185918U (de) | 1982-11-25 |
| JPS6210641Y2 true JPS6210641Y2 (de) | 1987-03-13 |
Family
ID=29869437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7366481U Expired JPS6210641Y2 (de) | 1981-05-21 | 1981-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6210641Y2 (de) |
-
1981
- 1981-05-21 JP JP7366481U patent/JPS6210641Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57185918U (de) | 1982-11-25 |
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