JPS5640A - Optical information reproducing unit - Google Patents
Optical information reproducing unitInfo
- 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
Links
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
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)
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 |
-
1979
- 1979-06-13 JP JP7584479A patent/JPS5640A/ja active Pending
Cited By (7)
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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