NL182990C - Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager. - Google Patents

Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager.

Info

Publication number
NL182990C
NL182990C NLAANVRAGE7508052,A NL7508052A NL182990C NL 182990 C NL182990 C NL 182990C NL 7508052 A NL7508052 A NL 7508052A NL 182990 C NL182990 C NL 182990C
Authority
NL
Netherlands
Prior art keywords
radiation
reading
record carrier
quadrant detector
reflecting record
Prior art date
Application number
NLAANVRAGE7508052,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7508052A (nl
NL182990B (nl
Inventor
Carel Arthur Jan Dr Ir Simons
Hendrik T Lam
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NLAANVRAGE7508052,A priority Critical patent/NL182990C/xx
Priority to US05/610,329 priority patent/US4011400A/en
Priority to ZA00763198A priority patent/ZA763198B/xx
Priority to AR263574A priority patent/AR210605A1/es
Priority to IT68653/76A priority patent/IT1070490B/it
Priority to AU15492/76A priority patent/AU500837B2/en
Priority to GB27593/76A priority patent/GB1549035A/en
Priority to CA256,175A priority patent/CA1067618A/en
Priority to DK301276A priority patent/DK301276A/da
Priority to BR7604376A priority patent/BR7604376A/pt
Priority to CH859676A priority patent/CH607214A5/xx
Priority to ES449567A priority patent/ES449567A1/es
Priority to NO762344A priority patent/NO762344L/no
Priority to PL1976190944A priority patent/PL107461B1/pl
Priority to BE168656A priority patent/BE843809A/xx
Priority to JP7975976A priority patent/JPS52129246A/ja
Priority to NZ181366A priority patent/NZ181366A/xx
Priority to SE7607643A priority patent/SE414432B/xx
Priority to DE2630308A priority patent/DE2630308C2/de
Priority to AT496876A priority patent/AT344265B/de
Priority to FR7620753A priority patent/FR2317727A1/fr
Publication of NL7508052A publication Critical patent/NL7508052A/xx
Publication of NL182990B publication Critical patent/NL182990B/xx
Application granted granted Critical
Publication of NL182990C publication Critical patent/NL182990C/xx

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
    • 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
    • G02B27/40—Optical focusing aids
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Automatic Focus Adjustment (AREA)
NLAANVRAGE7508052,A 1975-07-07 1975-07-07 Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager. NL182990C (nl)

Priority Applications (21)

Application Number Priority Date Filing Date Title
NLAANVRAGE7508052,A NL182990C (nl) 1975-07-07 1975-07-07 Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager.
US05/610,329 US4011400A (en) 1975-07-07 1975-09-04 Apparatus for reading an optically readable reflecting information structure
ZA00763198A ZA763198B (en) 1975-07-07 1976-06-01 Apparatus for reading an optically readable reflecting information structure
AR263574A AR210605A1 (es) 1975-07-07 1976-06-09 Aparato lector de una estructura de informacion reflectora opticamente legible
AU15492/76A AU500837B2 (en) 1975-07-07 1976-07-02 Optically reading record carriers
GB27593/76A GB1549035A (en) 1975-07-07 1976-07-02 Reading optical records
CA256,175A CA1067618A (en) 1975-07-07 1976-07-02 Apparatus for reading an optically readable reflecting information structure
DK301276A DK301276A (da) 1975-07-07 1976-07-02 Apparat til aflesning af en optisk afleselig reflekterende informationsstruktur
IT68653/76A IT1070490B (it) 1975-07-07 1976-07-02 Dispositivo per la lettura di informazioni leggibili otticamente particolarmente di registrazioni televisive su disco
NZ181366A NZ181366A (en) 1975-07-07 1976-07-05 Composite focusing and centring detector for optical record reading
BR7604376A BR7604376A (pt) 1975-07-07 1976-07-05 Aparelho para a leitura de uma estrutura refletora de radiacoes contendo informacoes gravadas numa trilha que podem ser lidas oticamente
NO762344A NO762344L (xx) 1975-07-07 1976-07-05
PL1976190944A PL107461B1 (pl) 1975-07-07 1976-07-05 Urzadzenie do odczytu optycznie odczytywalnej odbijajacej promieniowanie struktury informacyjnej nosnika zapisu
BE168656A BE843809A (fr) 1975-07-07 1976-07-05 Dispositif pour la lecture d'un porte-enregistrement presentant une structure d'information reflectrice lisible par voie optique
JP7975976A JPS52129246A (en) 1975-07-07 1976-07-05 Light reflection record carrier reader
CH859676A CH607214A5 (xx) 1975-07-07 1976-07-05
SE7607643A SE414432B (sv) 1975-07-07 1976-07-05 Apparat for avlesning av en stralningsreflekterande uppteckningsberare
ES449567A ES449567A1 (es) 1975-07-07 1976-07-05 Un aparato para leer un portador de registro de radiacion.
DE2630308A DE2630308C2 (de) 1975-07-07 1976-07-06 Vorrichtung zum Auslesen eines strahlungsreflektierenden Aufzeichnungsträgers
AT496876A AT344265B (de) 1975-07-07 1976-07-07 Vorrichtung zum auslesen eines strahlungsreflektierenden aufzeichnungstraegers, auf dem information in einer optisch auslesbaren spurfoermigen informationsstruktur angebracht ist
FR7620753A FR2317727A1 (fr) 1975-07-07 1976-07-07 Dispositif pour la lecture d'un porteur d'enregistrement presentant une structure d'information reflectrice lisible par voie optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7508052,A NL182990C (nl) 1975-07-07 1975-07-07 Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager.

Publications (3)

Publication Number Publication Date
NL7508052A NL7508052A (nl) 1977-01-11
NL182990B NL182990B (nl) 1988-01-18
NL182990C true NL182990C (nl) 1988-06-16

Family

ID=19824096

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7508052,A NL182990C (nl) 1975-07-07 1975-07-07 Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager.

Country Status (21)

Country Link
US (1) US4011400A (xx)
JP (1) JPS52129246A (xx)
AR (1) AR210605A1 (xx)
AT (1) AT344265B (xx)
AU (1) AU500837B2 (xx)
BE (1) BE843809A (xx)
BR (1) BR7604376A (xx)
CA (1) CA1067618A (xx)
CH (1) CH607214A5 (xx)
DE (1) DE2630308C2 (xx)
DK (1) DK301276A (xx)
ES (1) ES449567A1 (xx)
FR (1) FR2317727A1 (xx)
GB (1) GB1549035A (xx)
IT (1) IT1070490B (xx)
NL (1) NL182990C (xx)
NO (1) NO762344L (xx)
NZ (1) NZ181366A (xx)
PL (1) PL107461B1 (xx)
SE (1) SE414432B (xx)
ZA (1) ZA763198B (xx)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325987A1 (fr) * 1975-09-29 1977-04-22 Thomson Brandt Dispositif de lecture optique d'un enregistrement
FR2330108A1 (fr) * 1975-10-31 1977-05-27 Hitachi Ltd Appareil de restitution d'informations
GB1532345A (en) * 1976-06-25 1978-11-15 Hitachi Ltd Information play-back apparatus
JPS5398802A (en) * 1977-02-09 1978-08-29 Mitsubishi Electric Corp Optical reproducer
NL7703077A (nl) * 1977-03-22 1978-09-26 Philips Nv Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager.
NL7703076A (nl) * 1977-03-22 1978-09-26 Philips Nv Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager.
CA1131361A (en) * 1977-05-11 1982-09-07 Fumitaka Kotaka Focus servo device for use in optical read-out device of information
JPS54160212A (en) * 1978-06-09 1979-12-18 Hitachi Ltd Optical head for information processing
JPS6038771B2 (ja) * 1978-06-19 1985-09-03 パイオニア株式会社 光学式情報読取装置のサ−ボ装置
US4243850A (en) * 1979-02-07 1981-01-06 Eastman Kodak Company Apparatus for tracking a record track on a video disc
NL7904724A (nl) * 1979-06-18 1980-12-22 Philips Nv Optische aftastinrichting met fokusseerstelsel.
NL7907216A (nl) * 1979-09-28 1981-03-31 Philips Nv Optisch fokusfout-detektiestelsel.
JPS5744236A (en) * 1980-08-29 1982-03-12 Matsushita Electric Ind Co Ltd Optical information reproducer
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device
US4385373A (en) * 1980-11-10 1983-05-24 Eastman Kodak Company Device for focus and alignment control in optical recording and/or playback apparatus
JPS57111837A (en) * 1980-12-27 1982-07-12 Olympus Optical Co Ltd Signal detecting system of optical information reader
JPS57186237A (en) * 1981-05-12 1982-11-16 Pioneer Video Corp Crosstalk eliminating device for recorded information reproducing device
US4458144A (en) * 1981-06-30 1984-07-03 Storage Technology Corporation Apparatus for reading information stored in a track pattern on a radiation reflecting record
US4412743A (en) * 1981-09-08 1983-11-01 Discovision Associates Off-axis light beam defect detector
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
JPS5854457A (ja) * 1981-09-28 1983-03-31 Hitachi Ltd 異常時デ−タのフリ−ズ方式
JPS5870434A (ja) * 1981-10-22 1983-04-26 Toshiba Corp 光学ヘツド
NL8105579A (nl) * 1981-12-11 1983-07-01 Philips Nv Optisch fokusfoutdetektiestelsel.
JPS59191144A (ja) * 1983-04-14 1984-10-30 Sony Corp 光ピツクアツプのトラツキングサ−ボ回路
JPS60258738A (ja) * 1984-05-18 1985-12-20 Olympus Optical Co Ltd トラック検索方法
US4617654A (en) * 1984-06-12 1986-10-14 National Semiconductor Corporation Matrix circuit for optical disc systems
JPS61264521A (ja) * 1985-05-20 1986-11-22 Hitachi Ltd 光学式読取再生装置
US4799210A (en) * 1986-11-05 1989-01-17 Unisys Corporation Fiber optic read/write head for an optical disk memory system
US4905216A (en) * 1986-12-04 1990-02-27 Pencom International Corporation Method for constructing an optical head by varying a hologram pattern
US4879706A (en) * 1987-07-29 1989-11-07 Laser Magnetic Storage International Company Method and apparatus for focus and tracking in an optical disk system
JPS6435730A (en) * 1987-07-31 1989-02-06 Sony Corp Focussing error detector
JPH01173323A (ja) * 1987-12-26 1989-07-10 Toshiba Corp 情報処理装置
US4958245A (en) * 1988-04-07 1990-09-18 Insite Peripherals, Inc. Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities
US5412634A (en) * 1990-02-16 1995-05-02 Deutsche Thomson-Brandt Gmbh Optical scanning device for a disc player including improved focusing apparatus
CN1267913C (zh) * 2001-11-12 2006-08-02 松下电器产业株式会社 光头及盘式记录重放装置
EP3330883A1 (en) 2016-11-30 2018-06-06 Veco B.V. Personal data storage and reading system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160138C (nl) * 1972-05-11 1979-09-17 Philips Nv Inrichting voor het uitlezen van een vlakke registratie- drager.
FR2212070A6 (xx) * 1972-08-25 1974-07-19 Thomson Csf
FR2266932B1 (xx) * 1973-03-02 1977-09-02 Thomson Brandt
US3932701A (en) * 1975-01-29 1976-01-13 Zenith Radio Corporation Self-compensating focus system for a reflective video disc

Also Published As

Publication number Publication date
NZ181366A (en) 1979-07-11
SE7607643L (sv) 1978-01-06
AU500837B2 (en) 1979-05-31
NL7508052A (nl) 1977-01-11
BE843809A (fr) 1977-01-05
DK301276A (da) 1977-01-08
DE2630308A1 (de) 1977-01-13
DE2630308C2 (de) 1983-05-05
FR2317727A1 (fr) 1977-02-04
JPS6129049B2 (xx) 1986-07-04
US4011400A (en) 1977-03-08
ES449567A1 (es) 1977-08-01
GB1549035A (en) 1979-08-01
IT1070490B (it) 1985-03-29
ATA496876A (de) 1977-11-15
PL107461B1 (pl) 1980-02-29
ZA763198B (en) 1978-01-25
BR7604376A (pt) 1977-07-26
AT344265B (de) 1978-07-10
CA1067618A (en) 1979-12-04
FR2317727B1 (xx) 1981-10-09
CH607214A5 (xx) 1978-11-30
AR210605A1 (es) 1977-08-31
SE414432B (sv) 1980-07-28
NO762344L (xx) 1977-01-10
AU1549276A (en) 1978-01-05
NL182990B (nl) 1988-01-18
JPS52129246A (en) 1977-10-29

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee