NL7706753A - DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER. - Google Patents

DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER.

Info

Publication number
NL7706753A
NL7706753A NL7706753A NL7706753A NL7706753A NL 7706753 A NL7706753 A NL 7706753A NL 7706753 A NL7706753 A NL 7706753A NL 7706753 A NL7706753 A NL 7706753A NL 7706753 A NL7706753 A NL 7706753A
Authority
NL
Netherlands
Prior art keywords
reading
information carrier
optical radiation
reflecting information
reflecting
Prior art date
Application number
NL7706753A
Other languages
Dutch (nl)
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
Priority claimed from NL7703123A external-priority patent/NL7703123A/en
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL7706753A priority Critical patent/NL7706753A/en
Priority to US05/834,243 priority patent/US4270045A/en
Priority to AR271114A priority patent/AR217276A1/en
Priority to DE19782810566 priority patent/DE2810566A1/en
Priority to CA299,001A priority patent/CA1116294A/en
Priority to DD78204290A priority patent/DD135654A5/en
Priority to IT21384/78A priority patent/IT1093249B/en
Priority to AU34292/78A priority patent/AU516903B2/en
Priority to JP53032272A priority patent/JPS6028055B2/en
Priority to BR7801692A priority patent/BR7801692A/en
Priority to GB10887/78A priority patent/GB1589035A/en
Priority to DK124478A priority patent/DK124478A/en
Priority to SE7803140A priority patent/SE424677B/en
Priority to AT0200278A priority patent/AT371275B/en
Priority to ES468083A priority patent/ES468083A1/en
Priority to BE186137A priority patent/BE865140A/en
Priority to FR7808297A priority patent/FR2385173A1/en
Publication of NL7706753A publication Critical patent/NL7706753A/en

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
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • 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
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • G11B2007/0924—Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)
NL7706753A 1977-03-23 1977-06-20 DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER. NL7706753A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
NL7706753A NL7706753A (en) 1977-03-23 1977-06-20 DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER.
US05/834,243 US4270045A (en) 1977-06-20 1977-09-19 Apparatus for reading an optical radiation-reflecting information carrier for controlling focus
AR271114A AR217276A1 (en) 1977-03-23 1978-02-16 READING DEVICE OF AN INFORMATION CARRIER OPTICAL RADIATION REFLECTOR
DE19782810566 DE2810566A1 (en) 1977-03-23 1978-03-11 DEVICE FOR READING AN OPTICAL RADIATION REFLECTING RECORDERING MEDIA
CA299,001A CA1116294A (en) 1977-03-23 1978-03-15 Apparatus for reading an optical radiation-reflecting record carrier
SE7803140A SE424677B (en) 1977-03-23 1978-03-20 DEVICE FOR READING AN OPTICAL RADIATION REFLECTING RECORDER
JP53032272A JPS6028055B2 (en) 1977-03-23 1978-03-20 Optical radiation reflective information carrier reading device
IT21384/78A IT1093249B (en) 1977-03-23 1978-03-20 APPARATUS TO READ A REELECTIVE RECORDING SUPPORT FOR OPTICAL RADIATIONS
AU34292/78A AU516903B2 (en) 1977-03-23 1978-03-20 Optically reading a record carrier
DD78204290A DD135654A5 (en) 1977-03-23 1978-03-20 DEVICE FOR READING AN OPTICAL RADIATION REFLECTIVE RECORDING VEHICLE
BR7801692A BR7801692A (en) 1977-03-23 1978-03-20 APPARATUS TO READ AN OPTICAL RADIATION REFLECTOR INFORMATION SUPPORT
GB10887/78A GB1589035A (en) 1977-03-23 1978-03-20 Optical record reader
DK124478A DK124478A (en) 1977-03-23 1978-03-20 DEVICE FOR READING A REGISTRATION CARRIER REFLECTING OPTICAL RADIATION
AT0200278A AT371275B (en) 1977-03-23 1978-03-21 DEVICE FOR READING AN OPTICALLY READABLE RADIATION REFLECTING DATA CARRIER
ES468083A ES468083A1 (en) 1977-03-23 1978-03-21 Optical record reader
BE186137A BE865140A (en) 1977-03-23 1978-03-21 DEVICE FOR READING A RECORDING HOLDER REFLECTING OPTICAL RADIATION
FR7808297A FR2385173A1 (en) 1977-03-23 1978-03-22 DEVICE FOR READING A RECORDING HOLDER REFLECTING OPTICAL RADIATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7703123A NL7703123A (en) 1977-03-23 1977-03-23 DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING REGISTRATION CARRIER.
NL7706753A NL7706753A (en) 1977-03-23 1977-06-20 DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER.

Publications (1)

Publication Number Publication Date
NL7706753A true NL7706753A (en) 1978-12-22

Family

ID=26645307

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7706753A NL7706753A (en) 1977-03-23 1977-06-20 DEVICE FOR READING AN OPTICAL RADIATION-REFLECTING INFORMATION CARRIER.

Country Status (16)

Country Link
JP (1) JPS6028055B2 (en)
AR (1) AR217276A1 (en)
AT (1) AT371275B (en)
AU (1) AU516903B2 (en)
BE (1) BE865140A (en)
BR (1) BR7801692A (en)
CA (1) CA1116294A (en)
DD (1) DD135654A5 (en)
DE (1) DE2810566A1 (en)
DK (1) DK124478A (en)
ES (1) ES468083A1 (en)
FR (1) FR2385173A1 (en)
GB (1) GB1589035A (en)
IT (1) IT1093249B (en)
NL (1) NL7706753A (en)
SE (1) SE424677B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7809635A (en) * 1978-09-22 1980-03-25 Philips Nv DEVICE FOR READING AN OPTICAL REGISTRATION CARRIER CONTAINING A RADIATION-REFLECTING INFORMATION STRUCTURE.
NL186353C (en) * 1979-06-12 1990-11-01 Philips Nv DEVICE FOR IMAGING A MASK PATTERN ON A SUBSTRATE EQUIPPED WITH AN OPTO-ELECTRONIC DETECTION SYSTEM FOR DETERMINING A DEROGATION BETWEEN THE IMAGE OF A PROJECT SYSTEM AND THE SUBSTRATE PLATE.
FR2460523A1 (en) * 1979-06-29 1981-01-23 Thomson Csf SEMICONDUCTOR LASER SOURCE OPTICAL READING HEAD AND DEVICE FOR REFLECTING AN INFORMATION MEDIUM COMPRISING SUCH AN OPTICAL HEAD
JPS5870434A (en) * 1981-10-22 1983-04-26 Toshiba Corp Optical head
JPS57186240A (en) * 1981-11-09 1982-11-16 Teac Co Optical reproducing device
JPS59119548A (en) * 1982-12-25 1984-07-10 Pioneer Electronic Corp Optical pickup device
JPS59125727U (en) * 1983-02-15 1984-08-24 パイオニア株式会社 Optical information pickup device
US4630927A (en) * 1983-02-15 1986-12-23 General Electric Company Optical projector
JPS60197950A (en) * 1984-03-22 1985-10-07 Toshiba Corp Optical head
JPH0626972Y2 (en) * 1986-10-03 1994-07-20 パイオニア株式会社 Optical pickup device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313716A1 (en) * 1975-06-03 1976-12-31 Thomson Brandt OPTICAL READING SYSTEM BY REFLECTION OF AN INFORMATION MEDIA

Also Published As

Publication number Publication date
JPS53118103A (en) 1978-10-16
DK124478A (en) 1978-09-24
FR2385173B1 (en) 1985-05-10
DE2810566C2 (en) 1988-01-21
BE865140A (en) 1978-09-21
BR7801692A (en) 1979-01-02
AR217276A1 (en) 1980-03-14
CA1116294A (en) 1982-01-12
SE7803140L (en) 1978-09-24
DE2810566A1 (en) 1978-09-28
AT371275B (en) 1983-06-10
DD135654A5 (en) 1979-05-16
IT7821384A0 (en) 1978-03-20
IT1093249B (en) 1985-07-19
SE424677B (en) 1982-08-02
AU516903B2 (en) 1981-06-25
JPS6028055B2 (en) 1985-07-02
FR2385173A1 (en) 1978-10-20
AU3429278A (en) 1979-09-27
ATA200278A (en) 1982-10-15
ES468083A1 (en) 1978-12-16
GB1589035A (en) 1981-05-07

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Legal Events

Date Code Title Description
BV The patent application has lapsed