KR970071511A - Magnetically-assisted optical pickup actuator - Google Patents

Magnetically-assisted optical pickup actuator Download PDF

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Publication number
KR970071511A
KR970071511A KR1019960013007A KR19960013007A KR970071511A KR 970071511 A KR970071511 A KR 970071511A KR 1019960013007 A KR1019960013007 A KR 1019960013007A KR 19960013007 A KR19960013007 A KR 19960013007A KR 970071511 A KR970071511 A KR 970071511A
Authority
KR
South Korea
Prior art keywords
objective lens
lens holder
magnetic
optical pickup
pickup actuator
Prior art date
Application number
KR1019960013007A
Other languages
Korean (ko)
Inventor
이광석
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960013007A priority Critical patent/KR970071511A/en
Publication of KR970071511A publication Critical patent/KR970071511A/en

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Abstract

본 발명은 컴팩트 디스크 플레이어용 광 픽업 액츄에이터에 관한 것으로서, 특히, 안착된 디스크의 반사면에 초점을 집속시키기 위한 대물렌즈(80)와, 상기 대물렌즈(80)를 지지하고, 그 측면의 요홈(71)에 트랙킹조정코일(73) 및 포커싱조정코일(72)이 설치되어 있는 대물렌즈홀더(70)를 구비하는 광 픽업 액츄에이터에 있어서, 상기 대물렌즈홀더(70)의 중심부에 형성되어 상,하로 관통 형성된 회전공(74)과, 상기 대물렌즈홀더(70)의 측면부에 일정깊이 함몰되어 형성된 다수개의 설치홈(76)과, 상기 회전공(75)에 끼워져 대물렌즈홀더(70)의 중심을 잡아주는 회전축(65)이 형성되고, 상기 트랙킹조정코일(73) 및 포커싱조정코일(72)에 자기력을 발생시키는 영구자석(64)이 설치되는 외측요오크(61)가 외주면에 형성된 베이스 플레이트(60)와, 상기 대물렌즈홀더(70) 및 베이스 플레이트(60)의 적소에 형성되어 베이스 플레이트(60)의 회적축(65)에 끼워진 대물렌즈홀더(70)를 자기 부상시켜주는 자기부상부재(100)로 구성된 것을 특징으로 하는 자기 부상식 광픽업 액츄에이터인바, 광픽업 액츄에이터의 구성을 간략화 하여 생산성 및 조립성을 증대시킬 뿐만아니라 액츄에이터의 서보성능을 현저하게 증대시키는 효과를 갖는다.The present invention relates to an optical pickup actuator for a compact disc player, and more particularly to an optical pickup actuator for focusing an objective lens 80 on a reflecting surface of a mounted disc, And an objective lens holder 70 in which a tracking adjusting coil 73 and a focusing adjusting coil 72 are provided on the objective lens holder 71. The objective lens holder 70 is formed at the center of the objective lens holder 70, A plurality of mounting grooves 76 formed at predetermined depths in the side surface of the objective lens holder 70 so as to be rotatable about the center of the objective lens holder 70 And an outer yoke 61 provided with a permanent magnet 64 for generating a magnetic force to the tracking adjusting coil 73 and the focusing adjusting coil 72 is formed on a base plate 60, the objective lens holder 70, And a magnetic levitation member (100) which is formed at a proper position of the island plate (60) and magnetically levitates an objective lens holder (70) sandwiched by a rotation axis (65) of the base plate (60) Pickup actuator, the structure of the optical pickup actuator is simplified, and productivity and assemblability are increased, and the servo performance of the actuator is remarkably increased.

Description

자기 부상식 광픽업 액츄에이터Magnetically-assisted optical pickup actuator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제3도는 본 발명에 따른 자기 부상식 광픽업 액츄에이터의 분해사시도, 제4도는 본 발명에 따른 자기 부상식광픽업 액츄에이터의 결합상태 사시도, 제5도는 본 발명에 따른 광픽업 액츄에이터의 동작상태를 보인 단면.FIG. 5 is a perspective view of the optical pick-up actuator according to the present invention. FIG. 5 is an exploded perspective view of the optical pick-up actuator according to the present invention. section.

Claims (2)

안착된 디스크의 반사면에 초점을 집속시키기 위한 대물렌즈(80)와, 상기 대물렌즈(80)를 지지하고, 그 측면의 요홈(71)에 트랙킹조정코일(73) 및 포커싱조정코일(72)이 설치되어 있는 대물렌즈홀더(70)를 구비하는 광 픽업 액츄에이터에 있어서, 상기 대물렌즈홀더(70)의 중심부에 형성되어 상,하로 관통 형성된 회전공(74)과, 상기 대물렌즈홀더(70)의 측면부에 일정깊이 함몰되어 형성된 다수개의 설치홈(76)과, 상기 회전공(75)에 끼워져 대물렌즈홀더(70)의 중심을 잡아주는 회전축(65)이 형성되고, 상기 트랙킹조정코일(73) 및 포커싱조정코일(72)에 자기력을 발생시키는 영구자석(64)이 설치되는 외측요오크(61)가 외주면에 형성된 베이스 플레이트(60)와, 상기 대물렌즈홀더(70) 및 베이스 플레이트(60)의 적소에 형성되어 베이스 플레이트(60)의 회전축(65)에 끼워진 대물렌즈홀더(70)를 자기 부상시켜주는 자기부상부재(100)로 구성된 것을 특징으로 하는 자기 부상식 광픽업 액츄에이터.And a tracking adjusting coil 73 and a focusing adjusting coil 72 are mounted on the groove 71 on the side of the objective lens 80. The objective lens 80 focuses the objective lens 80, The objective lens holder 70 includes an objective lens holder 70 and an objective lens holder 70. The objective lens holder 70 includes a rotation hole 74 formed at the center of the objective lens holder 70 and passing through the objective lens holder 70, And a rotation axis 65 for holding the center of the objective lens holder 70 is inserted into the rotation hole 75. The tracking adjustment coil 73 And an outer yoke 61 having an outer yoke 61 on which a permanent magnet 64 for generating a magnetic force is provided on the focusing adjusting coil 72. The objective lens holder 70 and the base plate 60 And is inserted into the rotation shaft 65 of the base plate 60 Water lens holder 70 to which the magnetic levitation magnetic levitation member 100, the magnetic unit sense the optical pickup actuator, characterized in that consisting of. 제1항에 있어서, 상기 자기부상부재(100)는 상기 대물렌즈홀더(70)의 설치홈(76)에 부착되는 고정철편(90)과, 상기 고정철편(90)의 대응된 위치에 설치되어 고정철편(90)에 강력한 자기력을 가해주는 자기부상자석(101)과, 상기 자기부상자석(101)을 지지하기 위해 베이스 플레이트(60)의 측면 모서리에 돌출 형성된 자기 부상요오크(67)로 구성된 것을 특징으로 하는 자기 부상식 광픽업 액츄에이터.The magnetic levitation member (100) according to claim 1, wherein the magnetic levitation member (100) comprises a fixed iron piece (90) attached to an installation groove (76) of the objective lens holder (70) A magnetic floating magnet 101 for applying a strong magnetic force to the fixed iron piece 90 and a magnetic levitation yoke 67 protruding from the side edge of the base plate 60 for supporting the magnetic floating magnet 101 And the optical pickup actuator is a magnetic pickup. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960013007A 1996-04-26 1996-04-26 Magnetically-assisted optical pickup actuator KR970071511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960013007A KR970071511A (en) 1996-04-26 1996-04-26 Magnetically-assisted optical pickup actuator

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Application Number Priority Date Filing Date Title
KR1019960013007A KR970071511A (en) 1996-04-26 1996-04-26 Magnetically-assisted optical pickup actuator

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KR970071511A true KR970071511A (en) 1997-11-07

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KR1019960013007A KR970071511A (en) 1996-04-26 1996-04-26 Magnetically-assisted optical pickup actuator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100808270B1 (en) * 2005-11-28 2008-02-29 한국기계연구원 A maglev-type position control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100808270B1 (en) * 2005-11-28 2008-02-29 한국기계연구원 A maglev-type position control apparatus

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E601 Decision to refuse application