KR950020484A - Slim Optical Pickup Actuator - Google Patents

Slim Optical Pickup Actuator Download PDF

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Publication number
KR950020484A
KR950020484A KR1019930030155A KR930030155A KR950020484A KR 950020484 A KR950020484 A KR 950020484A KR 1019930030155 A KR1019930030155 A KR 1019930030155A KR 930030155 A KR930030155 A KR 930030155A KR 950020484 A KR950020484 A KR 950020484A
Authority
KR
South Korea
Prior art keywords
objective lens
optical pickup
thin film
film magnet
base member
Prior art date
Application number
KR1019930030155A
Other languages
Korean (ko)
Other versions
KR960015206B1 (en
Inventor
한만준
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 KR1019930030155A priority Critical patent/KR960015206B1/en
Publication of KR950020484A publication Critical patent/KR950020484A/en
Application granted granted Critical
Publication of KR960015206B1 publication Critical patent/KR960015206B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 슬림형 광픽업 액츄에이터에 관한 것으로, 와이어 서스펜션(23)에 의해 부유되는 형태로 설치되는 렌즈고정부재(20)의 단부에 박막형 자석(24)을 설치하고, 그 박막형 자석(24)을 설치하고, 그 박막형 자석(24)이 설치된 위치와 대응하는 광픽업 베이스부재(10)상에 형성된 다수의 요홈(14)내에 수납되어 상기 박막형 자석(24)과의 자기 작용에 의해 대물렌즈(21)의 수직 및 수평방향 구동을 행하는 다수의 전자석 코일(15)로 구성되고, 상기 전자석 코일(15)은 상기 베이스부재(10)상에서 상기 대물렌즈(21)의 자기부상에 의한 수직 및 수평방향 이동을 수행하는 보이스코일로 구성되며, 상기 렌즈고정부재(20)의 양단에 설치되는 상기 박막형 자석(21)의 두께는 그 대물렌즈(21)의 두께와 동일하거나 작게 형성되어 광픽업 베이스부재(10)상에 설치되어 전류방향에 따라 전자석으로 작용하는 보이스코일(15)고 대물렌즈(21)의 주변에 설치된 상기 박막형 자석(15)과의 상호작용에 의해 포커싱과 트랙킹동작이 이루어지도록 함으로써 광픽업 장치의 소형화와 경량화가 가능하도록 된 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slim type optical pickup actuator, wherein a thin film magnet (24) is provided at an end of the lens fixing member (20) installed in a floating form by a wire suspension (23), and the thin film magnet (24) is installed. In addition, the objective lens 21 is housed in a plurality of grooves 14 formed on the optical pickup base member 10 corresponding to the position where the thin film magnet 24 is installed, and magnetically acts on the thin film magnet 24. It consists of a plurality of electromagnet coils 15 for vertical and horizontal driving of the electromagnet coil 15, the electromagnet coil 15 is a vertical and horizontal movement by the magnetic levitation of the objective lens 21 on the base member 10 Comprising a voice coil to perform, the thickness of the thin-film magnet 21 is provided on both ends of the lens fixing member 20 is formed the same or smaller than the thickness of the objective lens 21, the optical pickup base member 10 Installed on the current room The optical pickup device can be made smaller and lighter by focusing and tracking by interaction with the voice coil 15 acting as an electromagnet and the thin film magnet 15 installed around the objective lens 21. It is to be done.

Description

슬림형 광픽업 액츄에이터Slim Optical Pickup Actuator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 슬림형 광픽업 액츄에이터를 설명하는 도면,2 is a view illustrating a slim type optical pickup actuator according to the present invention;

제3도는 제2도에 도시된 렌즈고정부재와 베이스부재의 관계를 설명하는 측면도이다.FIG. 3 is a side view illustrating the relationship between the lens fixing member and the base member shown in FIG.

Claims (3)

베이스부재(10)내에 수용되어 정보기록매체의 정보기록면에 대해 레이저 비임을 방사하는 레이저광원과 상기 레이저광원에서 방사된 레이저비임이 상기 정보기록매체의 정보기록면상에 집광되도록 작용하는 대물렌즈(21)를 갖추어 구성된 광픽업 장치에 있어서, 중앙에 상기 대물렌즈(21)가 고정되고 양단이 복수의 서스펜센(23)에 의해 지지되는 렌즈고정부재(20)의 양단에 설치되는 복수의 박막형 자석(24)과 그 박막자석(24)이 설치된 위치와 대응하는 상기 베이스부재(10)상에 형성된 요홈(14)내에 수납되어 상기 박막형 자석(24)과의 자기작용에 의해 상기 대물렌즈(21)의 포커싱 및 트랙킹을 위한 위치조정을 행하는 복수의 전자석 코일(15)로 구성된 것을 특징으로 하는 슬림형 광픽업 액츄에이터.The objective lens 21 accommodated in the base member 10 and acting to cause the laser light source radiating the laser beam to the information recording surface of the information recording medium and the laser beam emitted from the laser light source to be focused on the information recording surface of the information recording medium. In the optical pickup device comprising a plurality of thin-film magnets are provided at both ends of the lens fixing member 20, the objective lens 21 is fixed in the center and both ends are supported by a plurality of suspense (23) The objective lens 21 is accommodated in the recess 14 formed on the base member 10 corresponding to the position where the thin film magnet 24 is installed and the magnetic lens interacts with the thin film magnet 24. Slim optical pickup actuator, characterized in that consisting of a plurality of electromagnet coils 15 for positioning and focusing for tracking. 제1항에 있어서, 상기 전자석 코일(15)은 상기 베이스부재(10)상에서 상기 대물렌즈(21)의 수직방향 및 수평방향을 이동을 행하는 보이스코일(15)로 구성되는 것을 특징으로 하는 슬림형 광픽업 액츄에이터.The slim type light beam according to claim 1, wherein the electromagnet coil (15) comprises a voice coil (15) which moves in the vertical and horizontal directions of the objective lens (21) on the base member (10). Pickup actuator. 제1항에 있어서, 상기 렌즈고정부재(20)의 양단에 설치되는 상기 박막형 자석(24)의 두께는 그 대물렌즈(21)의 두께와 동일하거나 작게 형성되는 것을 특징으로 하는 슬림형 광픽업 액츄에이터.The slim optical pickup actuator according to claim 1, wherein a thickness of the thin film magnet (24) provided at both ends of the lens fixing member (20) is equal to or smaller than that of the objective lens (21). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930030155A 1993-12-28 1993-12-28 Slim type optical pick-up KR960015206B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930030155A KR960015206B1 (en) 1993-12-28 1993-12-28 Slim type optical pick-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930030155A KR960015206B1 (en) 1993-12-28 1993-12-28 Slim type optical pick-up

Publications (2)

Publication Number Publication Date
KR950020484A true KR950020484A (en) 1995-07-24
KR960015206B1 KR960015206B1 (en) 1996-11-01

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ID=19373177

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930030155A KR960015206B1 (en) 1993-12-28 1993-12-28 Slim type optical pick-up

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100366407B1 (en) * 1996-06-11 2003-03-03 엘지전자 주식회사 Actuator for optical pickup and optical pickup device using the same
KR20050075120A (en) * 2004-01-15 2005-07-20 삼성전자주식회사 Actuator for mobile type optical recording/reproducing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100366407B1 (en) * 1996-06-11 2003-03-03 엘지전자 주식회사 Actuator for optical pickup and optical pickup device using the same
KR20050075120A (en) * 2004-01-15 2005-07-20 삼성전자주식회사 Actuator for mobile type optical recording/reproducing apparatus

Also Published As

Publication number Publication date
KR960015206B1 (en) 1996-11-01

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