JPS49131127A - - Google Patents

Info

Publication number
JPS49131127A
JPS49131127A JP4538473A JP4538473A JPS49131127A JP S49131127 A JPS49131127 A JP S49131127A JP 4538473 A JP4538473 A JP 4538473A JP 4538473 A JP4538473 A JP 4538473A JP S49131127 A JPS49131127 A JP S49131127A
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.)
Granted
Application number
JP4538473A
Other languages
Japanese (ja)
Other versions
JPS5240962B2 (cs
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 JP4538473A priority Critical patent/JPS5240962B2/ja
Publication of JPS49131127A publication Critical patent/JPS49131127A/ja
Publication of JPS5240962B2 publication Critical patent/JPS5240962B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP4538473A 1973-04-20 1973-04-20 Expired JPS5240962B2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4538473A JPS5240962B2 (cs) 1973-04-20 1973-04-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4538473A JPS5240962B2 (cs) 1973-04-20 1973-04-20

Publications (2)

Publication Number Publication Date
JPS49131127A true JPS49131127A (cs) 1974-12-16
JPS5240962B2 JPS5240962B2 (cs) 1977-10-15

Family

ID=12717760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4538473A Expired JPS5240962B2 (cs) 1973-04-20 1973-04-20

Country Status (1)

Country Link
JP (1) JPS5240962B2 (cs)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195860A (cs) * 1975-02-19 1976-08-23
JPS5263793A (en) * 1975-11-21 1977-05-26 Pioneer Electronic Corp Optical signal reader
JPS5266447A (en) * 1975-11-28 1977-06-01 Japanese National Railways<Jnr> Focus adjusting device in optical measuring apparatus
JPH06215406A (ja) * 1993-01-13 1994-08-05 Matsushita Electric Ind Co Ltd 光ヘッド
JPH06231476A (ja) * 1993-02-03 1994-08-19 Nec Corp フォーカシング誤差検出器
JPH0765407A (ja) * 1993-08-25 1995-03-10 Matsushita Electric Ind Co Ltd 光ヘッド

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195860A (cs) * 1975-02-19 1976-08-23
JPS5263793A (en) * 1975-11-21 1977-05-26 Pioneer Electronic Corp Optical signal reader
JPS5266447A (en) * 1975-11-28 1977-06-01 Japanese National Railways<Jnr> Focus adjusting device in optical measuring apparatus
JPH06215406A (ja) * 1993-01-13 1994-08-05 Matsushita Electric Ind Co Ltd 光ヘッド
JPH06231476A (ja) * 1993-02-03 1994-08-19 Nec Corp フォーカシング誤差検出器
JPH0765407A (ja) * 1993-08-25 1995-03-10 Matsushita Electric Ind Co Ltd 光ヘッド

Also Published As

Publication number Publication date
JPS5240962B2 (cs) 1977-10-15

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