KR960015646A - Optical pickup drive - Google Patents

Optical pickup drive Download PDF

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Publication number
KR960015646A
KR960015646A KR1019940025555A KR19940025555A KR960015646A KR 960015646 A KR960015646 A KR 960015646A KR 1019940025555 A KR1019940025555 A KR 1019940025555A KR 19940025555 A KR19940025555 A KR 19940025555A KR 960015646 A KR960015646 A KR 960015646A
Authority
KR
South Korea
Prior art keywords
movable part
movable
optical
support means
optical pickup
Prior art date
Application number
KR1019940025555A
Other languages
Korean (ko)
Other versions
KR0141786B1 (en
Inventor
최인호
Original Assignee
이헌조
엘지전자 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 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940025555A priority Critical patent/KR0141786B1/en
Publication of KR960015646A publication Critical patent/KR960015646A/en
Application granted granted Critical
Publication of KR0141786B1 publication Critical patent/KR0141786B1/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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 광픽업 구동장치에 관한 것으로, 종래의 광픽업 구동장치는 가동부(3)와 고정부(6)가 분리된 상태에서 상기 가동부(3)가 소정의 탄성수단에 의해 지지됨으로써 가동부 외부에 별도의 탄성지지수단을 설치해야하므로, 기기의 박형화가 어렵고, 이러한 탄성지지수단으로 인해 부품이 증대되어 원가가 상승되는 문제점이 있었는 바, 대물렌즈와 광학가동부품으로 구성한 가동부와; 상기 가동부의 중심부에 삽입되는 가동축과, 상기 광학가동부품과 상호작용하는 광학고정부품으로 구성하여 상기 가동부의 가동축 방향으로의 이동 및 회전을 가능케하는 고정부로 이루어져 포커싱/트랙킹을 수행하는 광픽업 구동장치에 있어서, 상기 고정부 또는 가동부 어느 한편에 부착된 포커싱/트랙킹용 마그네트와; 다른 한편에 상기 마그네트와 대향하여 부착된 자성체로 구성된 지지수단을 포함하여서 된 본 발명을 제공하여 대물렌즈가 부착된 가동부와 가동부의 회동을 허용하면서 가동부를 고정하는 고정부간의 결합을 기구적 수단을 이용하지 않고 자기력에 의해 유지시키도록 한 것이다.The present invention relates to an optical pickup driving apparatus. In the conventional optical pickup driving apparatus, the movable portion 3 is supported by a predetermined elastic means in a state in which the movable portion 3 and the fixed portion 6 are separated from each other. Since it is necessary to install a separate elastic support means, it is difficult to reduce the thickness of the device, there is a problem that the cost is increased by increasing the parts due to the elastic support means, the movable part consisting of the objective lens and the optical movable parts; Optical focusing / tracking is composed of a movable shaft inserted into the center of the movable part and an optical fixing part which interacts with the optical movable part to enable movement and rotation in the direction of the movable shaft of the movable part. A pickup drive device comprising: a focusing / tracking magnet attached to either the fixed or movable part; On the other hand, the present invention includes a support means composed of a magnetic body attached to face the magnet to provide a mechanical means for coupling the movable part to which the objective lens is attached and the fixing part to fix the movable part while allowing the movable part to rotate. It is to be maintained by magnetic force without using.

Description

광픽업 구동장치Optical pickup drive

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도 내지 제5도는 본 발명에 의한 광픽업 구동장치를 보인 것으로,2 to 5 show an optical pickup driving apparatus according to the present invention,

제2도는 광픽업 구동장치의 전체적인 구성도,2 is an overall configuration diagram of an optical pickup driving apparatus,

제3도는 광픽업 구동장치의 가동부를 보인 것으로,3 shows the movable part of the optical pickup drive device.

(가)는 평면도,(A) a floor plan,

(나)는 측면도,(B) the side view,

(다)는 정면도,(C) is a front view,

제4도는 광픽업 구동장치의 고정부를 보인 것으로,4 is a view illustrating a fixing part of the optical pickup driving device.

(가)는 평면도,(A) a floor plan,

(나)는 정면도,(B) front view,

제5도는 광픽업 구동장치의 지지수단을 보인 것으로,5 shows the support means of the optical pickup drive device,

(가)는 포커싱 가동시의 구성도,(A) Configuration diagram at the time of focusing operation,

(나)는 트랙킹 가동시의 구성도,(B) configuration diagram at the time of tracking operation,

(다)는 포커싱 가동시의 주파수 특성을 보인 그래프,(C) is a graph showing the frequency characteristics during focusing operation,

(라)는 트랙킹 가동시의 주파수 특성을 보인 그래프.(D) is a graph showing the frequency characteristics during tracking operation.

Claims (1)

대물렌즈와 광학가동부품으로 구성한 가동부와; 상기 가동부의 중심부에 삽입되는 가동축과, 상기 광학가동부품과 상호작용하는 광학고정부품으로 구성하여 상기 가동부의 가동측 방향으로의 이동 및 회전을 가능케하는 고정부로 이루어져 포커싱/트랙킹을 수행하는 광픽업 구동장치에 있어서, 상기 고정부 또는 가동부 어느 한편에 부착된 포커싱/트랙킹용 마그네트와 다른 한편에 상기 마그네트와 대향하여 부착된 자성체로 구성된 지지수단을 포함하는 것을 특징으로 하는 광픽업 구동장치.A movable part composed of an objective lens and an optical movable part; Optical focusing / tracking is composed of a movable shaft inserted into the center of the movable part and an optical fixing part which interacts with the optical movable part to enable movement and rotation in the movable side direction of the movable part. A pickup driving apparatus comprising: a support means composed of a focusing / tracking magnet attached to one of the fixed part or the movable part and a magnetic body attached to the other opposite to the magnet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940025555A 1994-10-06 1994-10-06 Optical drive KR0141786B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940025555A KR0141786B1 (en) 1994-10-06 1994-10-06 Optical drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940025555A KR0141786B1 (en) 1994-10-06 1994-10-06 Optical drive

Publications (2)

Publication Number Publication Date
KR960015646A true KR960015646A (en) 1996-05-22
KR0141786B1 KR0141786B1 (en) 1998-07-15

Family

ID=19394536

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940025555A KR0141786B1 (en) 1994-10-06 1994-10-06 Optical drive

Country Status (1)

Country Link
KR (1) KR0141786B1 (en)

Also Published As

Publication number Publication date
KR0141786B1 (en) 1998-07-15

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