JPS6450249A - Reader for optical recording disk - Google Patents

Reader for optical recording disk

Info

Publication number
JPS6450249A
JPS6450249A JP62207032A JP20703287A JPS6450249A JP S6450249 A JPS6450249 A JP S6450249A JP 62207032 A JP62207032 A JP 62207032A JP 20703287 A JP20703287 A JP 20703287A JP S6450249 A JPS6450249 A JP S6450249A
Authority
JP
Japan
Prior art keywords
optical
optical system
pickup
access
track information
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
JP62207032A
Other languages
Japanese (ja)
Inventor
Toru Kuwabara
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 JP62207032A priority Critical patent/JPS6450249A/en
Publication of JPS6450249A publication Critical patent/JPS6450249A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To shorten the access time of an optical pickup, by incorporating two or more optical systems in the optical pickup, and arranging the objective lens of each optical system along the radius direction of an optical disk. CONSTITUTION:The optical disk 1 incorporates two pairs of optical systems A and B, and the optical system A being positioned nearer to the center of the optical disk 1 takes charge of access at an inner peripheral side, and the optical system B separated from the center takes charge of the access at an outer peripheral side. In other words, assuming that the optical system A, when reading track information at the inner periphery of the optical disk 1, receives an instruction to read the track information at the outer periphery next, the optical pickup 10 moves in the radius direction toward the outside. And when another optical system B arrives at a targeted track, the pickup stops, simultaneously, the optical system B reads the track information. In such a way, it is possible to shorten the access time as the optical pickup.
JP62207032A 1987-08-20 1987-08-20 Reader for optical recording disk Pending JPS6450249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62207032A JPS6450249A (en) 1987-08-20 1987-08-20 Reader for optical recording disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62207032A JPS6450249A (en) 1987-08-20 1987-08-20 Reader for optical recording disk

Publications (1)

Publication Number Publication Date
JPS6450249A true JPS6450249A (en) 1989-02-27

Family

ID=16533073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62207032A Pending JPS6450249A (en) 1987-08-20 1987-08-20 Reader for optical recording disk

Country Status (1)

Country Link
JP (1) JPS6450249A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100224893B1 (en) * 1996-12-04 1999-10-15 윤종용 Comkpoible optical pickup apparatus
KR100467378B1 (en) * 1996-05-09 2005-06-27 소니 가부시끼 가이샤 Optical pickup and disc player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467378B1 (en) * 1996-05-09 2005-06-27 소니 가부시끼 가이샤 Optical pickup and disc player
KR100224893B1 (en) * 1996-12-04 1999-10-15 윤종용 Comkpoible optical pickup apparatus

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