JPS60132620U - Beam position adjustment device for optical recording and reproducing equipment - Google Patents

Beam position adjustment device for optical recording and reproducing equipment

Info

Publication number
JPS60132620U
JPS60132620U JP2000484U JP2000484U JPS60132620U JP S60132620 U JPS60132620 U JP S60132620U JP 2000484 U JP2000484 U JP 2000484U JP 2000484 U JP2000484 U JP 2000484U JP S60132620 U JPS60132620 U JP S60132620U
Authority
JP
Japan
Prior art keywords
light
order light
optical recording
position adjustment
zero
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
JP2000484U
Other languages
Japanese (ja)
Inventor
青木　吉男
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP2000484U priority Critical patent/JPS60132620U/en
Publication of JPS60132620U publication Critical patent/JPS60132620U/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はビームと情報トラックとの関係を示す図で、同
図ａは副ビームが他のトラックに位置している状態を示
す図、同図すは所望の位置関係を示す図、第２図は光学
系の一例を示す図、第３図は本考案に係る光検出器を示
す図である。 １３・・・０次光用光検出器（第３の発光素子）、１４
．１５・・・±１次光用光検出器（第１及び第２の受光
素子）。FIG. 1 is a diagram showing the relationship between beams and information tracks; FIG. The figure shows an example of an optical system, and FIG. 3 shows a photodetector according to the present invention. 13... Photodetector for 0th order light (third light emitting element), 14
．． 15...±1st-order light photodetector (first and second light receiving elements).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] レーザビームを回折した±１次光を情報トラックに前後
して集光照射せしめ前記±１次光の反射ビームを第１・
第２の受光素子に入射してトラッキング状態を検出する
と共に０次光を情報トラック中央に集光照射せしめ０次
光の反射ビームを第３の受光素子に入射して再生出力を
得るようにした光学記録再生装置において、前記第１・
第２の受光素子を複数個に分割し、各分割された受光部
の検出出力に基づき前記±１次光の初期位置を調整する
ようにしたことを特徴とする光学記録再生装置のビーム
位置調整装置。The ±1st order light diffracted from the laser beam is condensed and irradiated back and forth on the information track, and the reflected beam of the ±1st order light is used as the first and second order light.
The zero-order light is incident on the second light-receiving element to detect the tracking state, and the zero-order light is focused and irradiated onto the center of the information track, and the reflected beam of the zero-order light is incident on the third light-receiving element to obtain reproduction output. In the optical recording/reproducing device, the first
Beam position adjustment of an optical recording and reproducing device, characterized in that the second light receiving element is divided into a plurality of parts, and the initial position of the ±1st order light is adjusted based on the detection output of each divided light receiving part. Device.
JP2000484U 1984-02-14 1984-02-14 Beam position adjustment device for optical recording and reproducing equipment Pending JPS60132620U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000484U JPS60132620U (en) 1984-02-14 1984-02-14 Beam position adjustment device for optical recording and reproducing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000484U JPS60132620U (en) 1984-02-14 1984-02-14 Beam position adjustment device for optical recording and reproducing equipment

Publications (1)

Publication Number Publication Date
JPS60132620U true JPS60132620U (en) 1985-09-04

Family

ID=30510094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000484U Pending JPS60132620U (en) 1984-02-14 1984-02-14 Beam position adjustment device for optical recording and reproducing equipment

Country Status (1)

Country Link
JP (1) JPS60132620U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103737A (en) * 1988-10-12 1990-04-16 Nec Home Electron Ltd Method and device for detecting objective lens position of optical head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103737A (en) * 1988-10-12 1990-04-16 Nec Home Electron Ltd Method and device for detecting objective lens position of optical head

Similar Documents

Publication Publication Date Title
EP0285661A4 (en) Focal spot position detector of an optical data recording/reproducing apparatus.
JPS6391819U (en)
CA2002381A1 (en) Optical pickup device
EP0348221A3 (en) An optical pickup apparatus
JPS60132620U (en) Beam position adjustment device for optical recording and reproducing equipment
JPS59125727U (en) Optical information pickup device
JPS61214143A (en) Photodetector element
JPS59138024U (en) optical recording and reproducing device
JPS59138025U (en) optical recording and reproducing device
JPS5960736U (en) light detector
JPS59153630U (en) optical playback device
JPS5982337U (en) optical pick up
JPS60169723U (en) optical disc player
JPH02149941A (en) Photo detector
JPS59125726U (en) optical recording and reproducing device
JPS6313414U (en)
JPS60192122U (en) Tracking control circuit for optical head device
JPS5875342U (en) Optical information reproducing device
JPS58163030U (en) information reproducing device
JPS5995432U (en) Optical system pick-up
JPH01116913U (en)
JPS5978526U (en) optical pickup device
JPS60180325U (en) Focus error signal detection device
JPS60183922U (en) Servo circuit for optical disks
JPS59157223U (en) Optical pickup device