JPS6457243A - Scanning light beam generating device - Google Patents

Scanning light beam generating device

Info

Publication number
JPS6457243A
JPS6457243A JP62214624A JP21462487A JPS6457243A JP S6457243 A JPS6457243 A JP S6457243A JP 62214624 A JP62214624 A JP 62214624A JP 21462487 A JP21462487 A JP 21462487A JP S6457243 A JPS6457243 A JP S6457243A
Authority
JP
Japan
Prior art keywords
light beam
plane
polarization
coincides
incident light
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
JP62214624A
Other languages
Japanese (ja)
Other versions
JP2776812B2 (en
Inventor
Tatsuya Narahara
Masahiko Chatani
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 JP62214624A priority Critical patent/JP2776812B2/en
Priority to GB8819254A priority patent/GB2209089B/en
Priority to US07/232,690 priority patent/US5046061A/en
Priority to NL8802052A priority patent/NL8802052A/en
Priority to DE3828461A priority patent/DE3828461C2/en
Publication of JPS6457243A publication Critical patent/JPS6457243A/en
Application granted granted Critical
Publication of JP2776812B2 publication Critical patent/JP2776812B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To obtain an optimum incident light beam, in an acousto-optical deflecting element by a simple constitution, by turning the plane of polarization of a laser luminous flux which is emitted from a semiconductor laser. CONSTITUTION:A sum laser luminous flux LBO which is linearly polarized so that the plane of polarization coincides with the short axis direction is emitted from a semiconductor laser 22, and its plane of polarization is turned by 90 deg. by a rotator 24, by which an incident light beam LB12 whose cross section is an elliptical shape is obtained so that the plane of polarization coincides with the long axis direction. Subsequently, the incident light beam LB12 is made incident on an acousto-optical deflecting element 25 so that its long axis coincides with the deflecting direction. In such a way, a scanning light beam LB13 whose light intensity is higher can be generated by a simple constitution.
JP62214624A 1987-08-26 1987-08-28 Scanning light beam generator Expired - Fee Related JP2776812B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62214624A JP2776812B2 (en) 1987-08-28 1987-08-28 Scanning light beam generator
GB8819254A GB2209089B (en) 1987-08-26 1988-08-12 Optical recording and/or reproducing apparatus.
US07/232,690 US5046061A (en) 1987-08-26 1988-08-16 Optical light beam scanner with zero order beam reflector
NL8802052A NL8802052A (en) 1987-08-26 1988-08-18 OPTICAL RECORDING AND / OR PLAYBACK DEVICE.
DE3828461A DE3828461C2 (en) 1987-08-26 1988-08-22 Method and device for optical recording and / or reproduction of information on a recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62214624A JP2776812B2 (en) 1987-08-28 1987-08-28 Scanning light beam generator

Publications (2)

Publication Number Publication Date
JPS6457243A true JPS6457243A (en) 1989-03-03
JP2776812B2 JP2776812B2 (en) 1998-07-16

Family

ID=16658813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62214624A Expired - Fee Related JP2776812B2 (en) 1987-08-26 1987-08-28 Scanning light beam generator

Country Status (1)

Country Link
JP (1) JP2776812B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114516A (en) * 1982-12-21 1984-07-02 Fujitsu Ltd Optical switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114516A (en) * 1982-12-21 1984-07-02 Fujitsu Ltd Optical switch

Also Published As

Publication number Publication date
JP2776812B2 (en) 1998-07-16

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Legal Events

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