JPH0250532B2 - - Google Patents
Info
- Publication number
- JPH0250532B2 JPH0250532B2 JP56123701A JP12370181A JPH0250532B2 JP H0250532 B2 JPH0250532 B2 JP H0250532B2 JP 56123701 A JP56123701 A JP 56123701A JP 12370181 A JP12370181 A JP 12370181A JP H0250532 B2 JPH0250532 B2 JP H0250532B2
- Authority
- JP
- Japan
- Prior art keywords
- holder
- reading element
- information
- light beam
- disk
- 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
- 230000003287 optical effect Effects 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
-
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56123701A JPS5826329A (ja) | 1981-08-07 | 1981-08-07 | 光学式情報再生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56123701A JPS5826329A (ja) | 1981-08-07 | 1981-08-07 | 光学式情報再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5826329A JPS5826329A (ja) | 1983-02-16 |
| JPH0250532B2 true JPH0250532B2 (en]) | 1990-11-02 |
Family
ID=14867196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56123701A Granted JPS5826329A (ja) | 1981-08-07 | 1981-08-07 | 光学式情報再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826329A (en]) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960742U (ja) * | 1982-10-12 | 1984-04-20 | 日本コロムビア株式会社 | 光ピツクアツプの角度調整装置 |
| JPS609022U (ja) * | 1983-06-25 | 1985-01-22 | 日本電気ホームエレクトロニクス株式会社 | 光ピツクアツプにおける対物レンズの傾き調整装置 |
| JPS6074218U (ja) * | 1983-10-26 | 1985-05-24 | 株式会社ケンウッド | 光ピツクアツプの取付状態調整構造 |
| JPS6082726U (ja) * | 1983-11-14 | 1985-06-07 | 富士通テン株式会社 | レ−ザピツクアツプの光軸調整装置 |
| JPS60111512U (ja) * | 1983-12-28 | 1985-07-29 | アルパイン株式会社 | 光学式読み取り装置の光学ヘツド調整装置 |
| JPS60214463A (ja) * | 1984-04-11 | 1985-10-26 | Pioneer Electronic Corp | デイスクプレ−ヤ |
| JPH087315A (ja) * | 1994-06-21 | 1996-01-12 | Sony Corp | 光学ピックアップ |
-
1981
- 1981-08-07 JP JP56123701A patent/JPS5826329A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5826329A (ja) | 1983-02-16 |
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