JPS6446243A - Optical pickup device - Google Patents

Optical pickup device

Info

Publication number
JPS6446243A
JPS6446243A JP62202295A JP20229587A JPS6446243A JP S6446243 A JPS6446243 A JP S6446243A JP 62202295 A JP62202295 A JP 62202295A JP 20229587 A JP20229587 A JP 20229587A JP S6446243 A JPS6446243 A JP S6446243A
Authority
JP
Japan
Prior art keywords
light beams
laser light
recording medium
photo detecting
detecting parts
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
JP62202295A
Other languages
Japanese (ja)
Other versions
JP2590912B2 (en
Inventor
Hiroshi Yoshitoshi
Hidehiro Kume
Yoshiyuki Matsumoto
Koji Mimori
Etsushi Yamamoto
Hiroshi Oikami
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP62202295A priority Critical patent/JP2590912B2/en
Publication of JPS6446243A publication Critical patent/JPS6446243A/en
Application granted granted Critical
Publication of JP2590912B2 publication Critical patent/JP2590912B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)

Abstract

PURPOSE:To obtain an information reading output and a correct detecting output to detect a focus error, etc., by properly separating reflected laser light beams from a recording medium and the laser light beams toward the recording medium, and making them reach first and second photo detecting parts. CONSTITUTION:First and second photo detecting parts 35 and 36 are formed on a semiconductor substrate 34, and a semiconductor laser element 37 and a reflecting surface part 40 are provided on the semiconductor substrate 34. A beam splitter part 41, etc., which guide laser light beams L2 reflected from a laser element 37 by the reflecting surface part 40 to a recording medium part 44 side and guide laser light beams L2' from the recording medium 44 side through a light path different from that of the laser light beams L2 to the side of the first and second photo detecting parts 35 and 36, are provided. Thus, the reflected laser light beams from the recording medium 44 can be properly guided to the respective first and second photo detecting part 35 and 36, and the proper information reading output, etc., can be obtained from the photo detecting parts 35 and 36.
JP62202295A 1987-08-13 1987-08-13 Optical pickup device Expired - Fee Related JP2590912B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62202295A JP2590912B2 (en) 1987-08-13 1987-08-13 Optical pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62202295A JP2590912B2 (en) 1987-08-13 1987-08-13 Optical pickup device

Publications (2)

Publication Number Publication Date
JPS6446243A true JPS6446243A (en) 1989-02-20
JP2590912B2 JP2590912B2 (en) 1997-03-19

Family

ID=16455178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62202295A Expired - Fee Related JP2590912B2 (en) 1987-08-13 1987-08-13 Optical pickup device

Country Status (1)

Country Link
JP (1) JP2590912B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150244A (en) * 1987-12-07 1989-06-13 Matsushita Electric Ind Co Ltd Optical head device
JPH03189932A (en) * 1989-12-19 1991-08-19 Matsushita Electric Ind Co Ltd Optical pickup device
JPH0461635A (en) * 1990-06-27 1992-02-27 Nec Corp Semiconductor element for optical disk
JPH05144074A (en) * 1991-11-22 1993-06-11 Sharp Corp Semiconductor laser device
US5293038A (en) * 1992-04-08 1994-03-08 Matsushita Electric Industrial Co., Ltd. Optical pick-up head apparatus wherein hollographic optical element and photodetector are formed on semiconductor substrate
WO1995018444A1 (en) * 1993-12-27 1995-07-06 Sony Corporation Optical device
WO1999023645A1 (en) * 1997-10-31 1999-05-14 Siemens Aktiengesellschaft Optoelectronic sensor module
US6185237B1 (en) 1996-06-24 2001-02-06 Matsushita Electric Industrial Co., Ltd. Semiconductor laser
EP0981063A3 (en) * 1992-07-14 2003-09-17 Seiko Epson Corporation Polarizer, optical element, and optical head
JP2017069241A (en) * 2015-09-28 2017-04-06 京セラ株式会社 Semiconductor laser element package and semiconductor laser device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150244A (en) * 1987-12-07 1989-06-13 Matsushita Electric Ind Co Ltd Optical head device
JPH03189932A (en) * 1989-12-19 1991-08-19 Matsushita Electric Ind Co Ltd Optical pickup device
JPH0461635A (en) * 1990-06-27 1992-02-27 Nec Corp Semiconductor element for optical disk
JPH05144074A (en) * 1991-11-22 1993-06-11 Sharp Corp Semiconductor laser device
US5293038A (en) * 1992-04-08 1994-03-08 Matsushita Electric Industrial Co., Ltd. Optical pick-up head apparatus wherein hollographic optical element and photodetector are formed on semiconductor substrate
EP0981063A3 (en) * 1992-07-14 2003-09-17 Seiko Epson Corporation Polarizer, optical element, and optical head
WO1995018444A1 (en) * 1993-12-27 1995-07-06 Sony Corporation Optical device
CN1046813C (en) * 1993-12-27 1999-11-24 索尼公司 Optical device
US6185237B1 (en) 1996-06-24 2001-02-06 Matsushita Electric Industrial Co., Ltd. Semiconductor laser
WO1999023645A1 (en) * 1997-10-31 1999-05-14 Siemens Aktiengesellschaft Optoelectronic sensor module
JP2017069241A (en) * 2015-09-28 2017-04-06 京セラ株式会社 Semiconductor laser element package and semiconductor laser device

Also Published As

Publication number Publication date
JP2590912B2 (en) 1997-03-19

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees