BE876144A - Dispositif pour l'exploration point par point d'une face d'information - Google Patents
Dispositif pour l'exploration point par point d'une face d'informationInfo
- Publication number
- BE876144A BE876144A BE0/195074A BE195074A BE876144A BE 876144 A BE876144 A BE 876144A BE 0/195074 A BE0/195074 A BE 0/195074A BE 195074 A BE195074 A BE 195074A BE 876144 A BE876144 A BE 876144A
- Authority
- BE
- Belgium
- Prior art keywords
- point
- exploration
- information face
- face
- information
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
- G02B27/4238—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in optical recording or readout devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Numerical Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7805069A NL7805069A (nl) | 1978-05-11 | 1978-05-11 | Inrichting voor puntsgewijze aftasting van een infor- matievlak. |
Publications (1)
Publication Number | Publication Date |
---|---|
BE876144A true BE876144A (fr) | 1979-11-09 |
Family
ID=19830816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/195074A BE876144A (fr) | 1978-05-11 | 1979-05-09 | Dispositif pour l'exploration point par point d'une face d'information |
Country Status (22)
Country | Link |
---|---|
US (1) | US4242579A (fr) |
JP (1) | JPS54155008A (fr) |
AR (1) | AR219161A1 (fr) |
AT (1) | AT372799B (fr) |
AU (1) | AU528609B2 (fr) |
BE (1) | BE876144A (fr) |
BR (1) | BR7902788A (fr) |
CA (1) | CA1145040A (fr) |
DD (1) | DD143832A5 (fr) |
DE (1) | DE2917932C2 (fr) |
DK (1) | DK150046C (fr) |
ES (1) | ES480406A1 (fr) |
FR (1) | FR2425694B1 (fr) |
GB (1) | GB2021281B (fr) |
IT (1) | IT1112554B (fr) |
NL (1) | NL7805069A (fr) |
NO (1) | NO791541L (fr) |
NZ (1) | NZ190392A (fr) |
PL (1) | PL131561B1 (fr) |
SE (1) | SE443466B (fr) |
YU (1) | YU110079A (fr) |
ZA (1) | ZA792065B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5856236A (ja) * | 1981-09-28 | 1983-04-02 | Hitachi Ltd | 光学的トラック位置検出装置およびそれを用いた光学的記録再生装置 |
US4534021A (en) * | 1981-12-10 | 1985-08-06 | Discovision Associates | Angularly multiplexed optical recording medium |
JPS59119548A (ja) * | 1982-12-25 | 1984-07-10 | Pioneer Electronic Corp | 光学式ピツクアツプ装置 |
JPS63225927A (ja) * | 1987-03-13 | 1988-09-20 | Pioneer Electronic Corp | 焦点誤差検出装置 |
NL8801327A (nl) * | 1988-05-24 | 1989-12-18 | Philips Nv | Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode. |
CN1275230A (zh) * | 1998-06-15 | 2000-11-29 | 皇家菲利浦电子有限公司 | 用于扫描光记录载体的装置 |
EP0965981A3 (fr) * | 1998-06-16 | 2009-11-25 | Koninklijke Philips Electronics N.V. | Dispositif d'exploration d'un support d'enregistrement optique |
JP2006523907A (ja) * | 2003-03-28 | 2006-10-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光記録担体及び光走査装置 |
TW200508662A (en) * | 2003-07-04 | 2005-03-01 | Koninkl Philips Electronics Nv | Optical diffraction element |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3770340A (en) * | 1972-08-21 | 1973-11-06 | Technical Operations Inc | Coherent optical system with expanded bandwidth and noise suppression |
US3919562A (en) * | 1974-05-20 | 1975-11-11 | Zenith Radio Corp | Slit detector for optical detector system |
NL177157C (nl) * | 1975-02-28 | 1985-08-01 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur. |
US4065786A (en) * | 1975-09-30 | 1977-12-27 | Rca Corporation | Videodisc playback system |
NL7600843A (nl) * | 1976-01-28 | 1977-08-01 | Philips Nv | Inrichting voor het uitlezen van een registratie- drager waarop informatie, bijvoorbeeld en/of ge- luidsinformatie, is aangebracht. |
CA1091966A (fr) * | 1976-10-15 | 1980-12-23 | Chiaki Kojima | Appareil de lecture de signaux enregistres sur support |
-
1978
- 1978-05-11 NL NL7805069A patent/NL7805069A/xx not_active Application Discontinuation
- 1978-07-17 US US05/925,230 patent/US4242579A/en not_active Expired - Lifetime
-
1979
- 1979-04-30 ZA ZA792065A patent/ZA792065B/xx unknown
- 1979-05-03 CA CA000327035A patent/CA1145040A/fr not_active Expired
- 1979-05-04 DE DE2917932A patent/DE2917932C2/de not_active Expired
- 1979-05-07 AU AU46810/79A patent/AU528609B2/en not_active Ceased
- 1979-05-08 BR BR7902788A patent/BR7902788A/pt unknown
- 1979-05-08 NO NO791541A patent/NO791541L/no unknown
- 1979-05-08 NZ NZ190392A patent/NZ190392A/xx unknown
- 1979-05-08 AR AR276448A patent/AR219161A1/es active
- 1979-05-08 DK DK189679A patent/DK150046C/da not_active IP Right Cessation
- 1979-05-08 SE SE7903979A patent/SE443466B/sv not_active IP Right Cessation
- 1979-05-08 GB GB7915802A patent/GB2021281B/en not_active Expired
- 1979-05-08 IT IT22460/79A patent/IT1112554B/it active
- 1979-05-09 BE BE0/195074A patent/BE876144A/fr unknown
- 1979-05-09 ES ES480406A patent/ES480406A1/es not_active Expired
- 1979-05-10 YU YU01100/79A patent/YU110079A/xx unknown
- 1979-05-10 JP JP5758079A patent/JPS54155008A/ja active Granted
- 1979-05-10 PL PL1979215491A patent/PL131561B1/pl unknown
- 1979-05-10 DD DD79212781A patent/DD143832A5/de unknown
- 1979-05-11 FR FR7912053A patent/FR2425694B1/fr not_active Expired
- 1979-05-11 AT AT0352079A patent/AT372799B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU4681079A (en) | 1979-11-15 |
NZ190392A (en) | 1982-06-29 |
YU110079A (en) | 1982-06-30 |
DE2917932C2 (de) | 1983-01-20 |
PL131561B1 (en) | 1984-11-30 |
AU528609B2 (en) | 1983-05-05 |
DK150046B (da) | 1986-11-24 |
JPS54155008A (en) | 1979-12-06 |
JPS6343820B2 (fr) | 1988-09-01 |
DK150046C (da) | 1987-07-13 |
IT7922460A0 (it) | 1979-05-08 |
SE443466B (sv) | 1986-02-24 |
IT1112554B (it) | 1986-01-20 |
FR2425694A1 (fr) | 1979-12-07 |
PL215491A1 (fr) | 1980-03-24 |
NL7805069A (nl) | 1979-11-13 |
AT372799B (de) | 1983-11-10 |
AR219161A1 (es) | 1980-07-31 |
SE7903979L (sv) | 1979-11-12 |
CA1145040A (fr) | 1983-04-19 |
ES480406A1 (es) | 1979-12-16 |
US4242579A (en) | 1980-12-30 |
NO791541L (no) | 1979-11-13 |
FR2425694B1 (fr) | 1988-07-08 |
GB2021281B (en) | 1982-06-23 |
BR7902788A (pt) | 1979-11-27 |
ATA352079A (de) | 1983-03-15 |
GB2021281A (en) | 1979-11-28 |
DK189679A (da) | 1979-11-12 |
DE2917932A1 (de) | 1979-11-15 |
DD143832A5 (de) | 1980-09-10 |
ZA792065B (en) | 1980-12-31 |
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