KR930003870B1 - 광헤드의 트랙킹장치 - Google Patents
광헤드의 트랙킹장치 Download PDFInfo
- Publication number
- KR930003870B1 KR930003870B1 KR1019900004823A KR900004823A KR930003870B1 KR 930003870 B1 KR930003870 B1 KR 930003870B1 KR 1019900004823 A KR1019900004823 A KR 1019900004823A KR 900004823 A KR900004823 A KR 900004823A KR 930003870 B1 KR930003870 B1 KR 930003870B1
- Authority
- KR
- South Korea
- Prior art keywords
- tracking
- optical head
- objective lens
- light
- signal
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900004823A KR930003870B1 (ko) | 1990-04-09 | 1990-04-09 | 광헤드의 트랙킹장치 |
DE4037732A DE4037732A1 (de) | 1990-04-09 | 1990-11-27 | Spurlaufvorrichtung fuer einen optischen kopf |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900004823A KR930003870B1 (ko) | 1990-04-09 | 1990-04-09 | 광헤드의 트랙킹장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910018992A KR910018992A (ko) | 1991-11-30 |
KR930003870B1 true KR930003870B1 (ko) | 1993-05-14 |
Family
ID=19297795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900004823A KR930003870B1 (ko) | 1990-04-09 | 1990-04-09 | 광헤드의 트랙킹장치 |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR930003870B1 (de) |
DE (1) | DE4037732A1 (de) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL186205C (nl) * | 1977-12-17 | 1990-10-01 | Victor Company Of Japan | Inrichting voor het optisch registreren van signalen op een registratiemedium. |
JP2557896B2 (ja) * | 1987-07-31 | 1996-11-27 | 株式会社東芝 | ディスク装置 |
-
1990
- 1990-04-09 KR KR1019900004823A patent/KR930003870B1/ko not_active IP Right Cessation
- 1990-11-27 DE DE4037732A patent/DE4037732A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE4037732C2 (de) | 1992-02-20 |
KR910018992A (ko) | 1991-11-30 |
DE4037732A1 (de) | 1991-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19970829 Year of fee payment: 7 |
|
LAPS | Lapse due to unpaid annual fee |