JPS6252386B2 - - Google Patents
Info
- Publication number
- JPS6252386B2 JPS6252386B2 JP9115981A JP9115981A JPS6252386B2 JP S6252386 B2 JPS6252386 B2 JP S6252386B2 JP 9115981 A JP9115981 A JP 9115981A JP 9115981 A JP9115981 A JP 9115981A JP S6252386 B2 JPS6252386 B2 JP S6252386B2
- Authority
- JP
- Japan
- Prior art keywords
- master
- disk
- compressed air
- glass master
- feed table
- 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
- 239000011521 glass Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 23
- 238000006073 displacement reaction Methods 0.000 description 13
- 239000011295 pitch Substances 0.000 description 11
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
- G11B19/2027—Turntables or rotors incorporating balancing means; Means for detecting imbalance
Landscapes
- Rotational Drive Of Disk (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56091159A JPS57205863A (en) | 1981-06-12 | 1981-06-12 | Generating device for disc recording original |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56091159A JPS57205863A (en) | 1981-06-12 | 1981-06-12 | Generating device for disc recording original |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57205863A JPS57205863A (en) | 1982-12-17 |
| JPS6252386B2 true JPS6252386B2 (enExample) | 1987-11-05 |
Family
ID=14018713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56091159A Granted JPS57205863A (en) | 1981-06-12 | 1981-06-12 | Generating device for disc recording original |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57205863A (enExample) |
-
1981
- 1981-06-12 JP JP56091159A patent/JPS57205863A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57205863A (en) | 1982-12-17 |
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