JPS5619176A - Optical information reader - Google Patents

Optical information reader

Info

Publication number
JPS5619176A
JPS5619176A JP9627379A JP9627379A JPS5619176A JP S5619176 A JPS5619176 A JP S5619176A JP 9627379 A JP9627379 A JP 9627379A JP 9627379 A JP9627379 A JP 9627379A JP S5619176 A JPS5619176 A JP S5619176A
Authority
JP
Japan
Prior art keywords
polarization
read
reflected
polarized
splitter
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.)
Granted
Application number
JP9627379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6215936B2 (enrdf_load_stackoverflow
Inventor
Noriaki Tsukada
Ikuyuki Miyazawa
Kazuo Okada
Hiroshi Sugawara
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 JP9627379A priority Critical patent/JPS5619176A/ja
Publication of JPS5619176A publication Critical patent/JPS5619176A/ja
Publication of JPS6215936B2 publication Critical patent/JPS6215936B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
JP9627379A 1979-07-25 1979-07-25 Optical information reader Granted JPS5619176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9627379A JPS5619176A (en) 1979-07-25 1979-07-25 Optical information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9627379A JPS5619176A (en) 1979-07-25 1979-07-25 Optical information reader

Publications (2)

Publication Number Publication Date
JPS5619176A true JPS5619176A (en) 1981-02-23
JPS6215936B2 JPS6215936B2 (enrdf_load_stackoverflow) 1987-04-09

Family

ID=14160528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9627379A Granted JPS5619176A (en) 1979-07-25 1979-07-25 Optical information reader

Country Status (1)

Country Link
JP (1) JPS5619176A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755547A (en) * 1980-09-22 1982-04-02 Olympus Optical Co Ltd Information reader of photomagnetic recording medium
JPS57133537A (en) * 1981-02-06 1982-08-18 Sharp Corp Magnetic and optical recording and reproducing head
JPS57169947A (en) * 1981-04-14 1982-10-19 Sharp Corp Magnetic optical head
JPS59119730U (ja) * 1983-01-29 1984-08-13 三菱重工業株式会社 油漬配線用中間継手
JPS59168951A (ja) * 1983-03-16 1984-09-22 Sanyo Electric Co Ltd 光磁気デイスク装置
JPS6064424U (ja) * 1983-10-05 1985-05-07 三洋電機株式会社 光磁気デイスク装置
JPS6122449A (ja) * 1984-07-10 1986-01-31 Matsushita Electric Ind Co Ltd 光学的ピツクアツプ
US4964110A (en) * 1987-05-28 1990-10-16 Sony Corporation Apparatus for reproducing a magneto-optical disk using a shot noise reduction circuit
JPH0316500A (ja) * 1989-06-14 1991-01-24 Hitachi Ltd ヘッドホン出力連動音声出力ボリウム
JPH08212615A (ja) * 1995-12-13 1996-08-20 Sharp Corp 光磁気記憶装置の光学装置
US6049518A (en) * 1995-08-31 2000-04-11 Sanyo Electric Co., Ltd. Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642151U (ja) * 1992-11-26 1994-06-03 株式会社タナカヤ 部分貼着段ボールシート

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625617A (en) * 1970-07-15 1971-12-07 Honeywell Inc Kerr effect read-out system for an optical memory
US4101947A (en) * 1976-10-04 1978-07-18 Eastman Kodak Company Narrow track magnetic-head recorder
JPS53112039A (en) * 1977-03-09 1978-09-30 Philips Nv Optical memory for mechanically addressing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625617A (en) * 1970-07-15 1971-12-07 Honeywell Inc Kerr effect read-out system for an optical memory
US4101947A (en) * 1976-10-04 1978-07-18 Eastman Kodak Company Narrow track magnetic-head recorder
JPS53112039A (en) * 1977-03-09 1978-09-30 Philips Nv Optical memory for mechanically addressing

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755547A (en) * 1980-09-22 1982-04-02 Olympus Optical Co Ltd Information reader of photomagnetic recording medium
JPS57133537A (en) * 1981-02-06 1982-08-18 Sharp Corp Magnetic and optical recording and reproducing head
JPS57169947A (en) * 1981-04-14 1982-10-19 Sharp Corp Magnetic optical head
JPS59119730U (ja) * 1983-01-29 1984-08-13 三菱重工業株式会社 油漬配線用中間継手
JPS59168951A (ja) * 1983-03-16 1984-09-22 Sanyo Electric Co Ltd 光磁気デイスク装置
JPS6064424U (ja) * 1983-10-05 1985-05-07 三洋電機株式会社 光磁気デイスク装置
JPS6122449A (ja) * 1984-07-10 1986-01-31 Matsushita Electric Ind Co Ltd 光学的ピツクアツプ
US4964110A (en) * 1987-05-28 1990-10-16 Sony Corporation Apparatus for reproducing a magneto-optical disk using a shot noise reduction circuit
JPH0316500A (ja) * 1989-06-14 1991-01-24 Hitachi Ltd ヘッドホン出力連動音声出力ボリウム
US6049518A (en) * 1995-08-31 2000-04-11 Sanyo Electric Co., Ltd. Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards
US6122242A (en) * 1995-08-31 2000-09-19 Sanyo Electric Co., Ltd. Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards
US6137764A (en) * 1995-08-31 2000-10-24 Sanyo Electric Co., Ltd. Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards
US6167019A (en) * 1995-08-31 2000-12-26 Sanyo Electric Co., Ltd. Optical Disc cd recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards
JPH08212615A (ja) * 1995-12-13 1996-08-20 Sharp Corp 光磁気記憶装置の光学装置

Also Published As

Publication number Publication date
JPS6215936B2 (enrdf_load_stackoverflow) 1987-04-09

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