JPS50136051A - - Google Patents

Info

Publication number
JPS50136051A
JPS50136051A JP49042401A JP4240174A JPS50136051A JP S50136051 A JPS50136051 A JP S50136051A JP 49042401 A JP49042401 A JP 49042401A JP 4240174 A JP4240174 A JP 4240174A JP S50136051 A JPS50136051 A JP S50136051A
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Pending
Application number
JP49042401A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP49042401A priority Critical patent/JPS50136051A/ja
Publication of JPS50136051A publication Critical patent/JPS50136051A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP49042401A 1974-04-15 1974-04-15 Pending JPS50136051A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP49042401A JPS50136051A (fr) 1974-04-15 1974-04-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49042401A JPS50136051A (fr) 1974-04-15 1974-04-15

Publications (1)

Publication Number Publication Date
JPS50136051A true JPS50136051A (fr) 1975-10-28

Family

ID=12635034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49042401A Pending JPS50136051A (fr) 1974-04-15 1974-04-15

Country Status (1)

Country Link
JP (1) JPS50136051A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119005A (en) * 1977-03-24 1978-10-18 Siwecki Thomas Method and device for storing and referring to information
JPS54107707A (en) * 1978-02-13 1979-08-23 Toshiba Corp Optical information recorder
JPS5589922A (en) * 1978-12-27 1980-07-08 Hitachi Ltd Information recorder
JPS56163533A (en) * 1980-05-19 1981-12-16 Matsushita Electric Ind Co Ltd Optical recorder and reproducer
JPS5738336U (fr) * 1981-04-23 1982-03-01
JPS616613A (ja) * 1984-06-20 1986-01-13 Hitachi Ltd 自動焦点機構
JPH01214810A (ja) * 1988-02-23 1989-08-29 Nec Corp 合焦点検出装置
US5740138A (en) * 1994-09-06 1998-04-14 Kabushiki Kaisha Toshiba Apparatus for recording information on a primary optical disk to manufacture optical disks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1284809A (en) * 1970-06-11 1972-08-09 Mitsubishi Electric Corp A laser processing apparatus
JPS4885025A (fr) * 1972-02-15 1973-11-12
JPS48101927A (fr) * 1972-04-05 1973-12-21

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1284809A (en) * 1970-06-11 1972-08-09 Mitsubishi Electric Corp A laser processing apparatus
JPS4885025A (fr) * 1972-02-15 1973-11-12
JPS48101927A (fr) * 1972-04-05 1973-12-21

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119005A (en) * 1977-03-24 1978-10-18 Siwecki Thomas Method and device for storing and referring to information
JPS6244333B2 (fr) * 1977-03-24 1987-09-19 Siwecki Thomas
JPS54107707A (en) * 1978-02-13 1979-08-23 Toshiba Corp Optical information recorder
JPS5951050B2 (ja) * 1978-02-13 1984-12-12 株式会社東芝 光情報記録装置
JPS5589922A (en) * 1978-12-27 1980-07-08 Hitachi Ltd Information recorder
JPS606015B2 (ja) * 1978-12-27 1985-02-15 株式会社日立製作所 情報記録装置
JPS56163533A (en) * 1980-05-19 1981-12-16 Matsushita Electric Ind Co Ltd Optical recorder and reproducer
JPS6232532B2 (fr) * 1980-05-19 1987-07-15 Matsushita Electric Ind Co Ltd
JPS5738336U (fr) * 1981-04-23 1982-03-01
JPS616613A (ja) * 1984-06-20 1986-01-13 Hitachi Ltd 自動焦点機構
JPH01214810A (ja) * 1988-02-23 1989-08-29 Nec Corp 合焦点検出装置
US5740138A (en) * 1994-09-06 1998-04-14 Kabushiki Kaisha Toshiba Apparatus for recording information on a primary optical disk to manufacture optical disks

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