SE443466B - Apparat for punktvis avsokning av en informationsyta - Google Patents

Apparat for punktvis avsokning av en informationsyta

Info

Publication number: SE443466B
Authority: SE; Sweden
Prior art keywords: information; scanning; radiation; detector; lens system
Prior art date: 1978-05-11

Application number

SE7903979A

Other languages

English (en)

Swedish (sv)

Other versions

SE7903979L (sv

Inventor

G Bouwhuis

Original Assignee

Philips Nv

Priority date (The priority date 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 date listed.)

1978-05-11

Filing date

1979-05-08

Publication date

1986-02-24

1979-05-08 Application filed by Philips Nv filed Critical Philips Nv

1979-11-12 Publication of SE7903979L publication Critical patent/SE7903979L/

1986-02-24 Publication of SE443466B publication Critical patent/SE443466B/sv

Links

230000005855 radiation Effects 0.000 claims description 37
210000001747 pupil Anatomy 0.000 claims description 21
230000003287 optical effect Effects 0.000 claims description 16
238000005286 illumination Methods 0.000 claims description 7
230000001154 acute effect Effects 0.000 claims description 2
230000000694 effects Effects 0.000 description 5
239000011241 protective layer Substances 0.000 description 3
239000010902 straw Substances 0.000 description 3
230000001427 coherent effect Effects 0.000 description 2
239000012141 concentrate Substances 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
239000000428 dust Substances 0.000 description 2
CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 2
238000000034 method Methods 0.000 description 2
239000002245 particle Substances 0.000 description 2
229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
206010010071 Coma Diseases 0.000 description 1
230000005856 abnormality Effects 0.000 description 1
201000009310 astigmatism Diseases 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
239000010410 layer Substances 0.000 description 1
230000001151 other effect Effects 0.000 description 1
230000036961 partial effect Effects 0.000 description 1
230000010287 polarization Effects 0.000 description 1
230000002829 reductive effect Effects 0.000 description 1
239000004065 semiconductor Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000010257 thawing Methods 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 Head (AREA)
Optical Recording Or Reproduction (AREA)
Numerical Control (AREA)

SE7903979A 1978-05-11 1979-05-08 Apparat for punktvis avsokning av en informationsyta SE443466B (sv)

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 (2)

Publication Number	Publication Date
SE7903979L SE7903979L (sv)	1979-11-12
SE443466B true SE443466B (sv)	1986-02-24

Family

ID=19830816

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7903979A SE443466B (sv)	1978-05-11	1979-05-08	Apparat for punktvis avsokning av en informationsyta

Country Status (22)

Country	Link
US (1)	US4242579A (es)
JP (1)	JPS54155008A (es)
AR (1)	AR219161A1 (es)
AT (1)	AT372799B (es)
AU (1)	AU528609B2 (es)
BE (1)	BE876144A (es)
BR (1)	BR7902788A (es)
CA (1)	CA1145040A (es)
DD (1)	DD143832A5 (es)
DE (1)	DE2917932C2 (es)
DK (1)	DK150046C (es)
ES (1)	ES480406A1 (es)
FR (1)	FR2425694B1 (es)
GB (1)	GB2021281B (es)
IT (1)	IT1112554B (es)
NL (1)	NL7805069A (es)
NO (1)	NO791541L (es)
NZ (1)	NZ190392A (es)
PL (1)	PL131561B1 (es)
SE (1)	SE443466B (es)
YU (1)	YU110079A (es)
ZA (1)	ZA792065B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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.
JP2002518781A (ja) *	1998-06-15	2002-06-25	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	光記録担体の走査装置
EP0965981A3 (en) *	1998-06-16	2009-11-25	Koninklijke Philips Electronics N.V.	Device for scanning an optical record carrier
CN1764961A (zh) *	2003-03-28	2006-04-26	皇家飞利浦电子股份有限公司	光学记录载体和光学扫描设备
ATE366423T1 (de) *	2003-07-04	2007-07-15	Koninkl Philips Electronics Nv	Optisches beugungselement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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 SE SE7903979A patent/SE443466B/sv not_active IP Right Cessation
- 1979-05-08 GB GB7915802A patent/GB2021281B/en not_active Expired
- 1979-05-08 BR BR7902788A patent/BR7902788A/pt unknown
- 1979-05-08 NZ NZ190392A patent/NZ190392A/xx unknown
- 1979-05-08 DK DK189679A patent/DK150046C/da not_active IP Right Cessation
- 1979-05-08 NO NO791541A patent/NO791541L/no unknown
- 1979-05-08 IT IT22460/79A patent/IT1112554B/it active
- 1979-05-08 AR AR276448A patent/AR219161A1/es active
- 1979-05-09 ES ES480406A patent/ES480406A1/es not_active Expired
- 1979-05-09 BE BE0/195074A patent/BE876144A/xx unknown
- 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 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
DK150046B (da)	1986-11-24
NZ190392A (en)	1982-06-29
YU110079A (en)	1982-06-30
DD143832A5 (de)	1980-09-10
DE2917932A1 (de)	1979-11-15
FR2425694A1 (fr)	1979-12-07
JPS6343820B2 (es)	1988-09-01
AT372799B (de)	1983-11-10
ZA792065B (en)	1980-12-31
US4242579A (en)	1980-12-30
AU4681079A (en)	1979-11-15
GB2021281B (en)	1982-06-23
CA1145040A (en)	1983-04-19
AR219161A1 (es)	1980-07-31
DK189679A (da)	1979-11-12
NO791541L (no)	1979-11-13
PL215491A1 (es)	1980-03-24
PL131561B1 (en)	1984-11-30
JPS54155008A (en)	1979-12-06
IT1112554B (it)	1986-01-20
SE7903979L (sv)	1979-11-12
NL7805069A (nl)	1979-11-13
ATA352079A (de)	1983-03-15
FR2425694B1 (fr)	1988-07-08
ES480406A1 (es)	1979-12-16
AU528609B2 (en)	1983-05-05
GB2021281A (en)	1979-11-28
DE2917932C2 (de)	1983-01-20
BE876144A (fr)	1979-11-09
DK150046C (da)	1987-07-13
BR7902788A (pt)	1979-11-27
IT7922460A0 (it)	1979-05-08

Legal Events

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 7903979-8

Effective date: 19890525

Format of ref document f/p: F

Publication	Publication Date	Title
EP0012603B1 (en)	1984-04-04	Method and apparatus for tracking an optically readable information track
CN1030987A (zh)	1989-02-08	对信息面进行光扫描的装置
US4716283A (en)	1987-12-29	Optical head for focusing a light beam on an optical disk
SE443466B (sv)	1986-02-24	Apparat for punktvis avsokning av en informationsyta
KR100326688B1 (ko)	2002-06-20	광주사장치및방사원검출장치
KR100255264B1 (ko)	2000-05-01	정보 평면 광학 주사 장치
US4843603A (en)	1989-06-27	Concentric photodetector arrangement for focusing and tracking
JP2690943B2 (ja)	1997-12-17	光デイスク装置
EP1005031A2 (en)	2000-05-31	Multi-beam optical pickup apparatus appropriately controlling distance between objective lens and optical information recording medium.
JP3503995B2 (ja)	2004-03-08	光ディスク装置
JPS6329337B2 (es)	1988-06-13
KR940012274A (ko)	1994-06-23	광픽업 장치
KR830000430B1 (ko)	1983-03-08	광학적 방사선 정보담체(Carrier)의 독취장치
KR900008379B1 (ko)	1990-11-17	광학식 헤드장치
KR100711345B1 (ko)	2007-04-27	더블 레이어 수광소자 및 이를 이용한 광픽업장치
US20070247984A1 (en)	2007-10-25	Optical Record Carrier and Optical Scanning Device
JPH0743835B2 (ja)	1995-05-15	フォーカス誤差検出装置
KR100444989B1 (ko)	2004-08-21	광스폿 크기의 조절 방법
KR100268032B1 (ko)	2000-10-16	구면 수차 보상용 광 픽업 장치
KR100339345B1 (ko)	2002-11-27	광픽업장치
KR100186398B1 (ko)	1999-04-15	광픽업장치
JPS5829151A (ja)	1983-02-21	光学的記録再生装置における焦点誤差検出装置
JPS60234242A (ja)	1985-11-20	光学ヘツド
JPH0795373B2 (ja)	1995-10-11	光学式情報読取り装置
JP2001034965A (ja)	2001-02-09	フォーカスエラー検出装置