JPS5054305A - - Google Patents
Info
- Publication number
- JPS5054305A JPS5054305A JP49048255A JP4825574A JPS5054305A JP S5054305 A JPS5054305 A JP S5054305A JP 49048255 A JP49048255 A JP 49048255A JP 4825574 A JP4825574 A JP 4825574A JP S5054305 A JPS5054305 A JP S5054305A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
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
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- 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
- G11B7/082—Aligning the head or the light source relative to the record carrier otherwise than during transducing, e.g. adjusting tilt set screw during assembly of head
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08576—Swinging-arm positioners
-
- 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
- G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7315453A FR2227591B1 (nl) | 1973-04-27 | 1973-04-27 | |
| FR7337361A FR2248571B2 (nl) | 1973-10-19 | 1973-10-19 | |
| FR7346959A FR2256496A2 (nl) | 1973-12-28 | 1973-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5054305A true JPS5054305A (nl) | 1975-05-14 |
Family
ID=27250103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49048255A Pending JPS5054305A (nl) | 1973-04-27 | 1974-04-27 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5054305A (nl) |
| DE (1) | DE2420423A1 (nl) |
| IT (1) | IT1010107B (nl) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117016A (en) * | 1975-04-07 | 1976-10-14 | Matsushita Electric Ind Co Ltd | Recording and refroducing device |
| JPS54149813U (nl) * | 1978-04-10 | 1979-10-18 | ||
| JPS60253032A (ja) * | 1976-05-12 | 1985-12-13 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 光学走査装置 |
-
1974
- 1974-04-26 DE DE2420423A patent/DE2420423A1/de active Pending
- 1974-04-26 IT IT21923/74A patent/IT1010107B/it active
- 1974-04-27 JP JP49048255A patent/JPS5054305A/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117016A (en) * | 1975-04-07 | 1976-10-14 | Matsushita Electric Ind Co Ltd | Recording and refroducing device |
| JPS60253032A (ja) * | 1976-05-12 | 1985-12-13 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 光学走査装置 |
| JPH0322656B2 (nl) * | 1976-05-12 | 1991-03-27 | Fuiritsupusu Furuuiranpenfuaburiken Nv | |
| JPS54149813U (nl) * | 1978-04-10 | 1979-10-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1010107B (it) | 1977-01-10 |
| DE2420423A1 (de) | 1974-10-31 |