JPS5640A - Optical information reproducing unit - Google Patents

Optical information reproducing unit

Info

Publication number
JPS5640A
JPS5640A JP7584479A JP7584479A JPS5640A JP S5640 A JPS5640 A JP S5640A JP 7584479 A JP7584479 A JP 7584479A JP 7584479 A JP7584479 A JP 7584479A JP S5640 A JPS5640 A JP S5640A
Authority
JP
Japan
Prior art keywords
light
lens
center
focus error
sensitivity
Prior art date
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
JP7584479A
Other languages
English (en)
Inventor
Mitsushige Kondo
Kazuo Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7584479A priority Critical patent/JPS5640A/ja
Publication of JPS5640A publication Critical patent/JPS5640A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP7584479A 1979-06-13 1979-06-13 Optical information reproducing unit Pending JPS5640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7584479A JPS5640A (en) 1979-06-13 1979-06-13 Optical information reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7584479A JPS5640A (en) 1979-06-13 1979-06-13 Optical information reproducing unit

Publications (1)

Publication Number Publication Date
JPS5640A true JPS5640A (en) 1981-01-06

Family

ID=13587914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7584479A Pending JPS5640A (en) 1979-06-13 1979-06-13 Optical information reproducing unit

Country Status (1)

Country Link
JP (1) JPS5640A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865252A (ja) * 1981-10-12 1983-04-18 Nippon Bio Res Center:Kk ｌ型β‐アミノイソプロパノールの製造方法
JPS60214892A (ja) * 1984-04-11 1985-10-28 Nippon Mining Co Ltd 微生物を利用してオレフインからエポキシドを製造する方法
JPS61162832A (ja) * 1985-01-14 1986-07-23 Olympus Optical Co Ltd 光学式ピツクアツプ
JPH02123526A (ja) * 1988-11-01 1990-05-11 Olympus Optical Co Ltd 光学的情報記録再生装置
KR100238084B1 (ko) * 1997-05-17 2000-02-01 윤종용 Tes오프셋의 보정기능을 지닌 광픽업

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865252A (ja) * 1981-10-12 1983-04-18 Nippon Bio Res Center:Kk ｌ型β‐アミノイソプロパノールの製造方法
JPS6325578B2 (ja) * 1981-10-12 1988-05-26 Nippon Baiorisaachi Sentaa Kk
JPS60214892A (ja) * 1984-04-11 1985-10-28 Nippon Mining Co Ltd 微生物を利用してオレフインからエポキシドを製造する方法
JPS6313678B2 (ja) * 1984-04-11 1988-03-26 Nippon Mining Co
JPS61162832A (ja) * 1985-01-14 1986-07-23 Olympus Optical Co Ltd 光学式ピツクアツプ
JPH02123526A (ja) * 1988-11-01 1990-05-11 Olympus Optical Co Ltd 光学的情報記録再生装置
KR100238084B1 (ko) * 1997-05-17 2000-02-01 윤종용 Tes오프셋의 보정기능을 지닌 광픽업

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