ZA757054B - Apparatus for optically reading a radiation-reflecting record carrier - Google Patents

Apparatus for optically reading a radiation-reflecting record carrier

Info

Publication number
ZA757054B
ZA757054B ZA757054A ZA757054A ZA757054B ZA 757054 B ZA757054 B ZA 757054B ZA 757054 A ZA757054 A ZA 757054A ZA 757054 A ZA757054 A ZA 757054A ZA 757054 B ZA757054 B ZA 757054B
Authority
ZA
South Africa
Prior art keywords
radiation
record carrier
optically reading
reflecting record
reflecting
Prior art date
Application number
ZA757054A
Other languages
English (en)
Inventor
K Bulthuis
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
Publication of ZA757054B publication Critical patent/ZA757054B/xx

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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Sowing (AREA)
ZA757054A 1974-11-29 1975-11-10 Apparatus for optically reading a radiation-reflecting record carrier ZA757054B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7415574,A NL181693C (nl) 1974-11-29 1974-11-29 Inrichting voor het langs optische weg uitlezen van een stralingsreflekterende registratiedrager.

Publications (1)

Publication Number Publication Date
ZA757054B true ZA757054B (en) 1977-06-29

Family

ID=19822558

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA757054A ZA757054B (en) 1974-11-29 1975-11-10 Apparatus for optically reading a radiation-reflecting record carrier

Country Status (20)

Country Link
US (1) US3991275A (xx)
JP (1) JPS5627932B2 (xx)
AR (1) AR210100A1 (xx)
AT (1) AT347148B (xx)
AU (1) AU500611B2 (xx)
BE (1) BE836047A (xx)
BR (1) BR7507847A (xx)
CA (1) CA1065059A (xx)
CH (1) CH600478A5 (xx)
DE (1) DE2552391C3 (xx)
DK (1) DK137253B (xx)
ES (1) ES443061A1 (xx)
FR (1) FR2293030A1 (xx)
GB (1) GB1519819A (xx)
IT (1) IT1052684B (xx)
NL (1) NL181693C (xx)
NO (1) NO753991L (xx)
PL (1) PL107136B1 (xx)
SE (1) SE410910B (xx)
ZA (1) ZA757054B (xx)

Families Citing this family (12)

* 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
NL7600479A (nl) * 1976-01-19 1977-07-21 Philips Nv Automatisch optisch focusseersysteem.
CA1091966A (en) * 1976-10-15 1980-12-23 Chiaki Kojima Apparatus for reading signals recorded on a record carrier
JPS6032175B2 (ja) * 1977-05-18 1985-07-26 バスフ アクチェン ゲゼルシャフト 版木及びレリ−フ版木を製造するために改良された光重合可能な物質
NL8005633A (nl) * 1980-10-13 1982-05-03 Philips Nv Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestruktuur.
US4466087A (en) * 1981-01-08 1984-08-14 Xerox Corporation Optical memory system for a reading/writing, verifying and tracking module
JPS58171731A (ja) * 1983-02-21 1983-10-08 Mitsubishi Electric Corp デイスク再生装置
US4678288A (en) * 1984-04-27 1987-07-07 Spectra-Physics, Inc. Trifocal lens for a laser instrument
JPS6332738A (ja) * 1987-05-29 1988-02-12 Mitsubishi Electric Corp ディスク再生装置
JPS6332739A (ja) * 1987-05-29 1988-02-12 Mitsubishi Electric Corp ディスク再生装置
US4786798A (en) * 1987-06-18 1988-11-22 Spectra-Physics Inc. Beam forming and collection lens assembly for laser scanner system
JPH06506788A (ja) * 1992-01-17 1994-07-28 ウエルチ　アリン，インコーポレイティド 光源と光検出器とそれらを用いた装置

Family Cites Families (3)

* 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.
NL169668C (nl) * 1972-09-02 1982-08-02 Philips Nv Inrichting voor het uitlezen van een schijfvormige informatiedrager.
FR2222665B1 (xx) * 1973-03-21 1975-10-31 Thomson Brandt

Also Published As

Publication number Publication date
JPS5177020A (xx) 1976-07-03
AU500611B2 (en) 1979-05-24
DE2552391B2 (de) 1979-11-15
ES443061A1 (es) 1977-04-16
FR2293030B1 (xx) 1982-02-26
DK137253B (da) 1978-02-06
CA1065059A (en) 1979-10-23
DK534075A (xx) 1976-05-30
JPS5627932B2 (xx) 1981-06-27
FR2293030A1 (fr) 1976-06-25
BR7507847A (pt) 1976-08-10
ATA898175A (de) 1978-04-15
IT1052684B (it) 1981-07-20
NL7415574A (nl) 1976-06-01
GB1519819A (en) 1978-08-02
CH600478A5 (xx) 1978-06-15
DE2552391C3 (de) 1980-07-31
BE836047A (fr) 1976-05-28
US3991275A (en) 1976-11-09
NL181693B (nl) 1987-05-04
AU8695475A (en) 1977-06-02
SE7513269L (sv) 1976-05-31
AR210100A1 (es) 1977-06-30
PL107136B1 (pl) 1980-01-31
NL181693C (nl) 1987-10-01
NO753991L (xx) 1976-06-01
DK137253C (xx) 1978-07-10
DE2552391A1 (de) 1976-08-12
SE410910B (sv) 1979-11-12
AT347148B (de) 1978-12-11

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