AR214353A1 - Aparato lector de un portador de grabacion reflector de radiacion - Google Patents
Aparato lector de un portador de grabacion reflector de radiacionInfo
- Publication number
- AR214353A1 AR214353A1 AR270983A AR27098378A AR214353A1 AR 214353 A1 AR214353 A1 AR 214353A1 AR 270983 A AR270983 A AR 270983A AR 27098378 A AR27098378 A AR 27098378A AR 214353 A1 AR214353 A1 AR 214353A1
- Authority
- AR
- Argentina
- Prior art keywords
- reading device
- recording carrier
- radiation reflector
- reflector recording
- radiation
- Prior art date
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
- G11B7/08—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
- G11B7/0908—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 focusing only
- G11B7/0909—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 focusing only by astigmatic methods
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7703076A NL7703076A (nl) | 1977-03-22 | 1977-03-22 | Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR214353A1 true AR214353A1 (es) | 1979-05-31 |
Family
ID=19828205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AR270983A AR214353A1 (es) | 1977-03-22 | 1978-02-06 | Aparato lector de un portador de grabacion reflector de radiacion |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS53117403A (pt) |
| AR (1) | AR214353A1 (pt) |
| AT (1) | AT369580B (pt) |
| AU (1) | AU510218B2 (pt) |
| BE (1) | BE865083A (pt) |
| BR (1) | BR7801690A (pt) |
| CA (1) | CA1109560A (pt) |
| CH (1) | CH627016A5 (pt) |
| DE (1) | DE2810616A1 (pt) |
| DK (1) | DK145868C (pt) |
| ES (1) | ES468055A1 (pt) |
| FR (1) | FR2385171A1 (pt) |
| IT (1) | IT1093316B (pt) |
| MX (1) | MX143603A (pt) |
| NL (1) | NL7703076A (pt) |
| NZ (1) | NZ186732A (pt) |
| PL (1) | PL113996B1 (pt) |
| SE (1) | SE424676B (pt) |
| YU (1) | YU39193B (pt) |
| ZA (1) | ZA78216B (pt) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1131361A (en) * | 1977-05-11 | 1982-09-07 | Fumitaka Kotaka | Focus servo device for use in optical read-out device of information |
| FR2460022B1 (fr) * | 1979-06-25 | 1987-09-11 | Hitachi Ltd | Systeme optique de reproduction d'informations |
| NL7907216A (nl) * | 1979-09-28 | 1981-03-31 | Philips Nv | Optisch fokusfout-detektiestelsel. |
| JPS59125727U (ja) * | 1983-02-15 | 1984-08-24 | パイオニア株式会社 | 光学式情報ピツクアツプ装置 |
| NL8400674A (nl) * | 1984-03-02 | 1985-10-01 | Philips Nv | Inrichting voor het inschrijven en/of uitlezen van informatie in een spoor van een reflekterende registratiedrager, met een fokusregeling met verminderde spot offsetgevoeligheid. |
| JPS6139942A (ja) * | 1984-08-01 | 1986-02-26 | Matsushita Electric Ind Co Ltd | 光ピツクアツプ |
| US4609813A (en) * | 1985-03-18 | 1986-09-02 | International Business Machines Corporation | Optical systems employing ovate light beams |
| JPS6310326A (ja) * | 1986-07-01 | 1988-01-16 | Sanyo Electric Co Ltd | 光ピツクアツプ装置 |
| DE3828146A1 (de) * | 1988-08-19 | 1990-02-22 | Philips Patentverwaltung | Elektrodynamischer aktuator fuer eine optische einschreib- und ausleseeinheit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2271590B1 (pt) * | 1974-01-15 | 1978-12-01 | Thomson Brandt | |
| NL182990C (nl) * | 1975-07-07 | 1988-06-16 | Philips Nv | Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager. |
| FR2325987A1 (fr) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | Dispositif de lecture optique d'un enregistrement |
| GB1532345A (en) * | 1976-06-25 | 1978-11-15 | Hitachi Ltd | Information play-back apparatus |
| JPS5337722A (en) * | 1976-09-20 | 1978-04-07 | Ebata Shiyouji Kk | Method of producing concrete piles |
| NL7703077A (nl) * | 1977-03-22 | 1978-09-26 | Philips Nv | Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager. |
-
1977
- 1977-03-22 NL NL7703076A patent/NL7703076A/xx not_active Application Discontinuation
-
1978
- 1978-01-12 ZA ZA00780216A patent/ZA78216B/xx unknown
- 1978-02-06 AR AR270983A patent/AR214353A1/es active
- 1978-03-11 DE DE19782810616 patent/DE2810616A1/de active Pending
- 1978-03-15 CA CA298,999A patent/CA1109560A/en not_active Expired
- 1978-03-17 MX MX172816A patent/MX143603A/es unknown
- 1978-03-17 IT IT21340/78A patent/IT1093316B/it active
- 1978-03-17 DK DK120578A patent/DK145868C/da not_active IP Right Cessation
- 1978-03-20 AU AU34294/78A patent/AU510218B2/en not_active Expired
- 1978-03-20 NZ NZ186732A patent/NZ186732A/xx unknown
- 1978-03-20 PL PL1978205453A patent/PL113996B1/pl unknown
- 1978-03-20 AT AT0196578A patent/AT369580B/de not_active IP Right Cessation
- 1978-03-20 BR BR7801690A patent/BR7801690A/pt unknown
- 1978-03-20 BE BE186087A patent/BE865083A/xx not_active IP Right Cessation
- 1978-03-20 SE SE7803138A patent/SE424676B/sv not_active IP Right Cessation
- 1978-03-20 CH CH302678A patent/CH627016A5/de not_active IP Right Cessation
- 1978-03-20 ES ES468055A patent/ES468055A1/es not_active Expired
- 1978-03-21 YU YU00673/78A patent/YU39193B/xx unknown
- 1978-03-22 JP JP3182778A patent/JPS53117403A/ja active Pending
- 1978-03-22 FR FR7808294A patent/FR2385171A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7803138L (sv) | 1978-09-23 |
| IT7821340A0 (it) | 1978-03-17 |
| CA1109560A (en) | 1981-09-22 |
| NZ186732A (en) | 1981-02-11 |
| AT369580B (de) | 1983-01-10 |
| MX143603A (es) | 1981-06-05 |
| DK120578A (da) | 1978-09-23 |
| AU510218B2 (en) | 1980-06-12 |
| ATA196578A (de) | 1982-05-15 |
| ZA78216B (en) | 1979-08-29 |
| PL113996B1 (en) | 1981-01-31 |
| AU3429478A (en) | 1979-09-27 |
| FR2385171A1 (fr) | 1978-10-20 |
| IT1093316B (it) | 1985-07-19 |
| YU67378A (en) | 1982-06-30 |
| DK145868C (da) | 1983-09-12 |
| CH627016A5 (en) | 1981-12-15 |
| ES468055A1 (es) | 1978-11-16 |
| SE424676B (sv) | 1982-08-02 |
| JPS53117403A (en) | 1978-10-13 |
| YU39193B (en) | 1984-08-31 |
| DK145868B (da) | 1983-03-21 |
| BR7801690A (pt) | 1979-01-02 |
| NL7703076A (nl) | 1978-09-26 |
| BE865083A (fr) | 1978-09-20 |
| PL205453A1 (pl) | 1978-12-18 |
| DE2810616A1 (de) | 1978-09-28 |
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