CA1145040A - Apparatus for the pointwise scanning of an information surface - Google Patents
Apparatus for the pointwise scanning of an information surfaceInfo
- Publication number
- CA1145040A CA1145040A CA000327035A CA327035A CA1145040A CA 1145040 A CA1145040 A CA 1145040A CA 000327035 A CA000327035 A CA 000327035A CA 327035 A CA327035 A CA 327035A CA 1145040 A CA1145040 A CA 1145040A
- Authority
- CA
- Canada
- Prior art keywords
- objective system
- scanning
- radiation
- information
- order
- 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
Links
- 230000005855 radiation Effects 0.000 claims abstract description 44
- 238000005286 illumination Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000011896 sensitive detection Methods 0.000 claims description 2
- YUBJPYNSGLJZPQ-UHFFFAOYSA-N Dithiopyr Chemical compound CSC(=O)C1=C(C(F)F)N=C(C(F)(F)F)C(C(=O)SC)=C1CC(C)C YUBJPYNSGLJZPQ-UHFFFAOYSA-N 0.000 abstract 1
- 210000001747 pupil Anatomy 0.000 description 34
- 230000000694 effects Effects 0.000 description 7
- 235000008504 concentrate Nutrition 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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 Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Numerical Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7805069 | 1978-05-11 | ||
| NL7805069A NL7805069A (nl) | 1978-05-11 | 1978-05-11 | Inrichting voor puntsgewijze aftasting van een infor- matievlak. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1145040A true CA1145040A (en) | 1983-04-19 |
Family
ID=19830816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000327035A Expired CA1145040A (en) | 1978-05-11 | 1979-05-03 | Apparatus for the pointwise scanning of an information surface |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US4242579A (enExample) |
| JP (1) | JPS54155008A (enExample) |
| AR (1) | AR219161A1 (enExample) |
| AT (1) | AT372799B (enExample) |
| AU (1) | AU528609B2 (enExample) |
| BE (1) | BE876144A (enExample) |
| BR (1) | BR7902788A (enExample) |
| CA (1) | CA1145040A (enExample) |
| DD (1) | DD143832A5 (enExample) |
| DE (1) | DE2917932C2 (enExample) |
| DK (1) | DK150046C (enExample) |
| ES (1) | ES480406A1 (enExample) |
| FR (1) | FR2425694B1 (enExample) |
| GB (1) | GB2021281B (enExample) |
| IT (1) | IT1112554B (enExample) |
| NL (1) | NL7805069A (enExample) |
| NO (1) | NO791541L (enExample) |
| NZ (1) | NZ190392A (enExample) |
| PL (1) | PL131561B1 (enExample) |
| SE (1) | SE443466B (enExample) |
| YU (1) | YU110079A (enExample) |
| ZA (1) | ZA792065B (enExample) |
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 (en) * | 1998-06-16 | 2009-11-25 | Koninklijke Philips Electronics N.V. | Device for scanning an optical record carrier |
| WO2004086388A1 (en) * | 2003-03-28 | 2004-10-07 | Koninklijke Philips Electronics N.V. | Optical record carrier and optical scanning device |
| WO2005003826A1 (en) * | 2003-07-04 | 2005-01-13 | Koninklijke Philips Electronics N.V. | 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 (en) * | 1976-10-15 | 1980-12-23 | Chiaki Kojima | Apparatus for reading signals recorded on a record carrier |
-
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/en 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 AR AR276448A patent/AR219161A1/es active
- 1979-05-08 NZ NZ190392A patent/NZ190392A/xx unknown
- 1979-05-08 IT IT22460/79A patent/IT1112554B/it active
- 1979-05-08 DK DK189679A patent/DK150046C/da not_active IP Right Cessation
- 1979-05-08 GB GB7915802A patent/GB2021281B/en not_active Expired
- 1979-05-08 SE SE7903979A patent/SE443466B/sv not_active IP Right Cessation
- 1979-05-08 BR BR7902788A patent/BR7902788A/pt unknown
- 1979-05-08 NO NO791541A patent/NO791541L/no unknown
- 1979-05-09 BE BE0/195074A patent/BE876144A/xx unknown
- 1979-05-09 ES ES480406A patent/ES480406A1/es not_active Expired
- 1979-05-10 JP JP5758079A patent/JPS54155008A/ja active Granted
- 1979-05-10 PL PL1979215491A patent/PL131561B1/pl unknown
- 1979-05-10 YU YU01100/79A patent/YU110079A/xx unknown
- 1979-05-10 DD DD79212781A patent/DD143832A5/de unknown
- 1979-05-11 AT AT0352079A patent/AT372799B/de not_active IP Right Cessation
- 1979-05-11 FR FR7912053A patent/FR2425694B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DD143832A5 (de) | 1980-09-10 |
| ES480406A1 (es) | 1979-12-16 |
| US4242579A (en) | 1980-12-30 |
| PL131561B1 (en) | 1984-11-30 |
| SE7903979L (sv) | 1979-11-12 |
| NZ190392A (en) | 1982-06-29 |
| BR7902788A (pt) | 1979-11-27 |
| NL7805069A (nl) | 1979-11-13 |
| BE876144A (fr) | 1979-11-09 |
| IT1112554B (it) | 1986-01-20 |
| DK150046C (da) | 1987-07-13 |
| NO791541L (no) | 1979-11-13 |
| AU4681079A (en) | 1979-11-15 |
| YU110079A (en) | 1982-06-30 |
| JPS6343820B2 (enExample) | 1988-09-01 |
| DK150046B (da) | 1986-11-24 |
| GB2021281B (en) | 1982-06-23 |
| IT7922460A0 (it) | 1979-05-08 |
| GB2021281A (en) | 1979-11-28 |
| DE2917932A1 (de) | 1979-11-15 |
| ATA352079A (de) | 1983-03-15 |
| DE2917932C2 (de) | 1983-01-20 |
| ZA792065B (en) | 1980-12-31 |
| SE443466B (sv) | 1986-02-24 |
| DK189679A (da) | 1979-11-12 |
| FR2425694A1 (fr) | 1979-12-07 |
| FR2425694B1 (fr) | 1988-07-08 |
| AU528609B2 (en) | 1983-05-05 |
| JPS54155008A (en) | 1979-12-06 |
| AT372799B (de) | 1983-11-10 |
| PL215491A1 (enExample) | 1980-03-24 |
| AR219161A1 (es) | 1980-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |