JPH059722B2 - - Google Patents
Info
- Publication number
- JPH059722B2 JPH059722B2 JP740183A JP740183A JPH059722B2 JP H059722 B2 JPH059722 B2 JP H059722B2 JP 740183 A JP740183 A JP 740183A JP 740183 A JP740183 A JP 740183A JP H059722 B2 JPH059722 B2 JP H059722B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- laser beam
- magnetic
- signal
- prism
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
- G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP740183A JPS59133412A (ja) | 1983-01-21 | 1983-01-21 | 組立精度測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP740183A JPS59133412A (ja) | 1983-01-21 | 1983-01-21 | 組立精度測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59133412A JPS59133412A (ja) | 1984-07-31 |
| JPH059722B2 true JPH059722B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-02-05 |
Family
ID=11664859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP740183A Granted JPS59133412A (ja) | 1983-01-21 | 1983-01-21 | 組立精度測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59133412A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1983
- 1983-01-21 JP JP740183A patent/JPS59133412A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59133412A (ja) | 1984-07-31 |