IT990311B - DEVICE FOR READING INFORMATION FROM A DISK-SHAPED RECORDING MEDIA - Google Patents

DEVICE FOR READING INFORMATION FROM A DISK-SHAPED RECORDING MEDIA

Info

Publication number
IT990311B
IT990311B IT5215073A IT5215073A IT990311B IT 990311 B IT990311 B IT 990311B IT 5215073 A IT5215073 A IT 5215073A IT 5215073 A IT5215073 A IT 5215073A IT 990311 B IT990311 B IT 990311B
Authority
IT
Italy
Prior art keywords
disk
recording media
reading information
shaped recording
reading
Prior art date
Application number
IT5215073A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT990311B publication Critical patent/IT990311B/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
IT5215073A 1972-08-26 1973-08-23 DEVICE FOR READING INFORMATION FROM A DISK-SHAPED RECORDING MEDIA IT990311B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7211676A NL7211676A (en) 1972-08-26 1972-08-26

Publications (1)

Publication Number Publication Date
IT990311B true IT990311B (en) 1975-06-20

Family

ID=19816797

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5215073A IT990311B (en) 1972-08-26 1973-08-23 DEVICE FOR READING INFORMATION FROM A DISK-SHAPED RECORDING MEDIA

Country Status (12)

Country Link
JP (1) JPS5245201B2 (en)
AT (1) AT324449B (en)
AU (1) AU474741B2 (en)
BE (1) BE804026A (en)
CA (1) CA1006265A (en)
CH (1) CH556122A (en)
DE (1) DE2342737C3 (en)
ES (1) ES418154A1 (en)
FR (1) FR2197290B1 (en)
GB (1) GB1442218A (en)
IT (1) IT990311B (en)
NL (1) NL7211676A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222665B1 (en) * 1973-03-21 1975-10-31 Thomson Brandt
JPS5169930A (en) * 1974-12-16 1976-06-17 Victor Company Of Japan
JPS54128705A (en) * 1978-03-29 1979-10-05 Mansei Kogyo Kk Reflecting beam path controller for optical information reader
JPS6114012Y2 (en) * 1978-06-12 1986-05-01
JPS553496U (en) * 1979-07-02 1980-01-10
JPS58128032A (en) * 1982-01-27 1983-07-30 Asahi Optical Co Ltd Detection method of focusing position for optical type information reproducer
JPS59160836A (en) * 1983-12-23 1984-09-11 Olympus Optical Co Ltd Driving device for projection lens
JPS59160833A (en) * 1983-12-23 1984-09-11 Olympus Optical Co Ltd Driving device for projection lens
JPS62295276A (en) * 1986-06-13 1987-12-22 Toshiba Corp Information reproducing device
KR102106456B1 (en) 2016-03-31 2020-05-04 주식회사 엘지화학 Electrode assembly, preperation method thereof and lithium secondary battery comprising the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126492A5 (en) * 1971-02-08 1972-10-06 Thomson Csf

Also Published As

Publication number Publication date
ES418154A1 (en) 1976-03-16
FR2197290B1 (en) 1977-02-25
DE2342737B2 (en) 1976-02-12
JPS4965845A (en) 1974-06-26
AT324449B (en) 1975-08-25
GB1442218A (en) 1976-07-14
CA1006265A (en) 1977-03-01
DE2342737A1 (en) 1974-03-07
DE2342737C3 (en) 1982-03-11
JPS5245201B2 (en) 1977-11-14
CH556122A (en) 1974-11-15
BE804026A (en) 1974-02-25
AU474741B2 (en) 1976-07-29
AU5954173A (en) 1975-02-27
FR2197290A1 (en) 1974-03-22
NL7211676A (en) 1974-02-28

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