CH569327A5 - - Google Patents

Info

Publication number
CH569327A5
CH569327A5 CH1246973A CH1246973A CH569327A5 CH 569327 A5 CH569327 A5 CH 569327A5 CH 1246973 A CH1246973 A CH 1246973A CH 1246973 A CH1246973 A CH 1246973A CH 569327 A5 CH569327 A5 CH 569327A5
Authority
CH
Switzerland
Application number
CH1246973A
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 NL7211996A external-priority patent/NL7211996A/xx
Priority claimed from NL7212044A external-priority patent/NL7212044A/xx
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH569327A5 publication Critical patent/CH569327A5/xx

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Radiography Using Non-Light Waves (AREA)
CH1246973A 1972-09-02 1973-08-30 CH569327A5 (en:Method)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7211996A NL7211996A (en:Method) 1972-09-02 1972-09-02
NL7212044A NL7212044A (en:Method) 1972-09-05 1972-09-05

Publications (1)

Publication Number Publication Date
CH569327A5 true CH569327A5 (en:Method) 1975-11-14

Family

ID=26644797

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1246973A CH569327A5 (en:Method) 1972-09-02 1973-08-30

Country Status (15)

Country Link
JP (1) JPS5330453B2 (en:Method)
AR (1) AR198680A1 (en:Method)
AT (1) AT328002B (en:Method)
BE (1) BE804328A (en:Method)
CA (1) CA1005907A (en:Method)
CH (1) CH569327A5 (en:Method)
DK (1) DK135558B (en:Method)
ES (1) ES418390A1 (en:Method)
FR (1) FR2198203B1 (en:Method)
GB (1) GB1441175A (en:Method)
IT (1) IT990420B (en:Method)
NO (1) NO141671C (en:Method)
PL (1) PL86219B1 (en:Method)
SE (1) SE394154B (en:Method)
YU (1) YU39711B (en:Method)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1013854A (en) * 1973-02-20 1977-07-12 John S. Winslow Videodisc mastering system
FR2280150B1 (fr) * 1974-07-26 1977-01-07 Thomson Brandt Dispositif de detection d'ecart de mise au point d'une tete de lecture optique par rapport a une surface de lecture
JPS5922289B2 (ja) * 1975-11-20 1984-05-25 ソニー株式会社 ジヨウホウケンシユツソウチ
JPS5916331B2 (ja) * 1975-11-27 1984-04-14 パイオニア株式会社 コウガクシキシンゴウヨミトリソウチ
US4097895A (en) * 1976-03-19 1978-06-27 Rca Corporation Multilayer optical record
FR2470391A1 (fr) * 1979-11-21 1981-05-29 Thomson Csf Dispositif optique stigmatique d'emission-reception de rayonnements coherents et tete optique d'enregistrement-lecture comprenant un tel dispositif
NL8004892A (nl) * 1980-08-29 1982-04-01 Philips Nv Inrichting voor het verwerken van optische informatie en werkwijze voor het vervaardigen van een coma-correctieplaat zoals toegepast in een dergelijke inrichting.
JPS5997713U (ja) * 1982-12-20 1984-07-02 市川毛織株式会社 スキマ−
JPS6234127A (ja) * 1985-08-08 1987-02-14 Konishiroku Photo Ind Co Ltd 光変調方式

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673412A (en) * 1970-03-02 1972-06-27 Trw Inc Radiant energy beam scanning method and apparatus
JPS5443710B2 (en:Method) * 1972-03-15 1979-12-21

Also Published As

Publication number Publication date
AU5978073A (en) 1975-03-06
YU231773A (en) 1982-06-30
BE804328A (fr) 1974-02-28
PL86219B1 (en:Method) 1976-05-31
DK135558B (da) 1977-05-16
IT990420B (it) 1975-06-20
NO141671C (no) 1980-04-16
NO141671B (no) 1980-01-07
CA1005907A (en) 1977-02-22
JPS4965726A (en:Method) 1974-06-26
ES418390A1 (es) 1976-03-16
FR2198203A1 (en:Method) 1974-03-29
DE2341824B2 (de) 1976-10-14
AT328002B (de) 1976-02-25
YU39711B (en) 1985-04-30
DE2341824A1 (de) 1974-03-14
FR2198203B1 (en:Method) 1979-08-03
SE394154B (sv) 1977-06-06
JPS5330453B2 (en:Method) 1978-08-26
GB1441175A (en) 1976-06-30
DK135558C (en:Method) 1977-10-24
ATA756073A (de) 1975-05-15
AR198680A1 (es) 1974-07-15

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased