KR970071511A - Magnetically-assisted optical pickup actuator - Google Patents
Magnetically-assisted optical pickup actuator Download PDFInfo
- 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
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- Optical Recording Or Reproduction (AREA)
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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013007A KR970071511A (en) | 1996-04-26 | 1996-04-26 | Magnetically-assisted optical pickup actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013007A KR970071511A (en) | 1996-04-26 | 1996-04-26 | Magnetically-assisted optical pickup actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970071511A true KR970071511A (en) | 1997-11-07 |
Family
ID=66216754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960013007A KR970071511A (en) | 1996-04-26 | 1996-04-26 | Magnetically-assisted optical pickup actuator |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970071511A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100808270B1 (en) * | 2005-11-28 | 2008-02-29 | 한국기계연구원 | A maglev-type position control apparatus |
-
1996
- 1996-04-26 KR KR1019960013007A patent/KR970071511A/en not_active Application Discontinuation
Cited By (1)
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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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |