NO762927L - - Google Patents
Info
- Publication number
- NO762927L NO762927L NO762927A NO762927A NO762927L NO 762927 L NO762927 L NO 762927L NO 762927 A NO762927 A NO 762927A NO 762927 A NO762927 A NO 762927A NO 762927 L NO762927 L NO 762927L
- Authority
- NO
- Norway
- Prior art keywords
- focusing device
- slot
- housing
- cover plate
- plate
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7510150,A NL178283C (nl) | 1975-08-28 | 1975-08-28 | Afspeelinrichting, in het bijzonder videospeler. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO762927L true NO762927L (da) | 1977-03-01 |
Family
ID=19824366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO762927A NO762927L (da) | 1975-08-28 | 1976-08-25 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3977684A (da) |
| JP (1) | JPS5731369Y2 (da) |
| AU (1) | AU505740B2 (da) |
| CA (1) | CA1070014A (da) |
| DE (1) | DE2636648C3 (da) |
| DK (1) | DK382776A (da) |
| ES (1) | ES451006A1 (da) |
| FR (1) | FR2322419A1 (da) |
| GB (1) | GB1554294A (da) |
| IT (1) | IT1071196B (da) |
| NL (1) | NL178283C (da) |
| NO (1) | NO762927L (da) |
| SE (1) | SE414090B (da) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2615605C2 (de) * | 1976-04-09 | 1978-06-01 | Polygram Gmbh, 2000 Hamburg | Scheibenförmiger Informationsträger und Verfahren zu seiner Herstellung |
| NL7605374A (nl) * | 1976-05-20 | 1977-11-22 | Philips Nv | Inrichting voor het met behulp van een stralen- bundel optisch uitlezen en/of beschrijven van een roterende plaat. |
| NL7801870A (nl) * | 1978-02-20 | 1979-08-22 | Philips Nv | Optische platenspeler. |
| NL8004379A (nl) * | 1980-07-31 | 1982-03-01 | Philips Nv | Inrichting voor het met behulp van een stralingsbundel inschrijven en/of uitlezen van informatie op een roterende informatieschijf. |
| US4488279A (en) * | 1980-10-20 | 1984-12-11 | Discovision Associates | Video recorder-playback machine |
| CA1159150A (en) * | 1980-10-20 | 1983-12-20 | Richard L. Wilkinson | Video recorder-playback machine |
| JPS57181401A (en) * | 1981-05-01 | 1982-11-08 | Toshiba Corp | Optical information processor |
| NL8204023A (nl) * | 1982-10-19 | 1984-05-16 | Philips Nv | Inrichting voor het optisch uitlezen en/of inschrijven van informatie. |
| TW200502945A (en) * | 2003-07-02 | 2005-01-16 | Asustek Comp Inc | Heat dissipation apparatus of optical pickup head |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US728867A (en) * | 1901-02-15 | 1903-05-26 | Francis W H Clay | Process of making sound-reproducing records. |
| US2270996A (en) * | 1936-06-22 | 1942-01-27 | Pintsch Julius Kg | Arrangement and process for the production of endless sound films |
| DE2051840B2 (de) * | 1970-10-22 | 1972-05-25 | Electroacustic Gmbh, 2300 Kiel | Abspielgeraet fuer rotierende, folienartig flexible bildplatten |
| US3839601A (en) * | 1971-07-06 | 1974-10-01 | Gakken Co Ltd | Optical record sheet and device for reproducing sound therefrom |
-
1975
- 1975-08-28 NL NLAANVRAGE7510150,A patent/NL178283C/xx not_active IP Right Cessation
- 1975-10-20 US US05/624,120 patent/US3977684A/en not_active Expired - Lifetime
-
1976
- 1976-08-14 DE DE2636648A patent/DE2636648C3/de not_active Expired
- 1976-08-23 CA CA259,654A patent/CA1070014A/en not_active Expired
- 1976-08-24 AU AU17081/76A patent/AU505740B2/en not_active Expired
- 1976-08-25 GB GB35335/76A patent/GB1554294A/en not_active Expired
- 1976-08-25 DK DK382776A patent/DK382776A/da unknown
- 1976-08-25 NO NO762927A patent/NO762927L/no unknown
- 1976-08-25 SE SE7609380A patent/SE414090B/xx not_active IP Right Cessation
- 1976-08-25 IT IT69079/76A patent/IT1071196B/it active
- 1976-08-25 JP JP1976113050U patent/JPS5731369Y2/ja not_active Expired
- 1976-08-26 ES ES451006A patent/ES451006A1/es not_active Expired
- 1976-08-26 FR FR7625823A patent/FR2322419A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU1708176A (en) | 1978-03-02 |
| IT1071196B (it) | 1985-04-02 |
| CA1070014A (en) | 1980-01-15 |
| US3977684A (en) | 1976-08-31 |
| ES451006A1 (es) | 1977-08-01 |
| DE2636648B2 (de) | 1981-03-19 |
| JPS5231325U (da) | 1977-03-04 |
| SE414090B (sv) | 1980-07-07 |
| DK382776A (da) | 1977-03-01 |
| AU505740B2 (en) | 1979-11-29 |
| NL7510150A (nl) | 1977-03-02 |
| SE7609380L (sv) | 1977-03-01 |
| NL178283B (nl) | 1985-09-16 |
| GB1554294A (en) | 1979-10-17 |
| DE2636648C3 (de) | 1981-12-10 |
| FR2322419A1 (fr) | 1977-03-25 |
| FR2322419B1 (da) | 1980-05-16 |
| JPS5731369Y2 (da) | 1982-07-09 |
| NL178283C (nl) | 1986-02-17 |
| DE2636648A1 (de) | 1977-03-10 |
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