KR970050319A - Optical pick-up actuator with simple structure - Google Patents

Optical pick-up actuator with simple structure Download PDF

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Publication number
KR970050319A
KR970050319A KR1019950050361A KR19950050361A KR970050319A KR 970050319 A KR970050319 A KR 970050319A KR 1019950050361 A KR1019950050361 A KR 1019950050361A KR 19950050361 A KR19950050361 A KR 19950050361A KR 970050319 A KR970050319 A KR 970050319A
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KR
South Korea
Prior art keywords
objective lens
permanent magnet
fixing
fixing groove
actuator
Prior art date
Application number
KR1019950050361A
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Korean (ko)
Other versions
KR0181816B1 (en
Inventor
송기석
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950050361A priority Critical patent/KR0181816B1/en
Publication of KR970050319A publication Critical patent/KR970050319A/en
Application granted granted Critical
Publication of KR0181816B1 publication Critical patent/KR0181816B1/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 단순구조를 갖는 광픽-업 액츄에이터에 관한 것으로서, 광픽-업 액츄에이터의 포커싱 조정코일 및 트랙킹 조정코일이 부설되는 대물렌즈 홀더와 요크의 구조를 단순화하여 조립이 용이하도록 하며, 대물렌즈 홀더의 구동력 중심을 안정화 할 수 있도록 한 것으로, 이를 위해 본 발명은 상면 소정위치에 레이져빔 통과공(10)이 형성되고 이 통과공(10)으로 외각지게 동심원형으로 소정직경의 제1고정홈(220), 제2고정홈(230)이 형서어되며 일측이 "ㄴ"형태로 직각되는 측면부에 복수의 고정공(210)이 형성된 플레이트(200)와, 상기 제1고정홈(220), 제2고정홈(230)에 끼움가능하게 소정두께 및 직경을 갖는 제1영구자석(300), 제2영구자석(400)과, 상기 고정공(210)에 끼워지는 와이어(500)와, 상기 와이어에 지지되도록 양측에 복수의 삽입공(610)이 형성되고 상측 중아에 디스크 반사면에 초점을 집속하는 대물렌즈(630)를 설치하기 위해 소정직경의 장착공(620)이 형성된 대물렌즈 홀더(600)와, 상기 대물렌즈 홀더(600)의 하부 및 양측 소정위치에 권선되어 대물렌즈(630)를 광축방향으로의 움직임을 제어하는 포커싱 조정코일(700)과 래디얼 방향으로 움직임을 제어하는 트랙킹 조정코일(800)로 설치되어 구성된 것이다.The present invention relates to an optical pick-up actuator having a simple structure, which simplifies the assembly of an objective lens holder and a yoke to which a focusing adjustment coil and a tracking adjustment coil of an optical pick-up actuator are installed, and to facilitate assembly. In order to stabilize the center of the driving force, the present invention has a laser beam through-hole 10 is formed in a predetermined position on the upper surface and the first fixing groove 220 of a predetermined diameter in a concentric circular shape to the outside through the through-hole 10. ), The second fixing groove 230 is formed and the plate 200 is formed with a plurality of fixing holes 210 in the side portion at right angles of one side "b" form, and the first fixing groove 220, the second A first permanent magnet 300 and a second permanent magnet 400 having a predetermined thickness and diameter to be fitted into the fixing groove 230, a wire 500 fitted into the fixing hole 210, and the wire. A plurality of insertion holes 610 are formed on both sides to be supported, and the upper side An objective lens holder 600 having a predetermined diameter mounting hole 620 for installing an objective lens 630 focusing on a disk reflecting surface in the middle child, and predetermined positions of the lower and both sides of the objective lens holder 600. It is wound on the objective lens 630 is configured to be installed by the focusing adjustment coil 700 for controlling the movement in the optical axis direction and the tracking adjustment coil 800 for controlling the movement in the radial direction.

Description

단순구조를 갖는 광 픽업 액츄에이터Optical Pickup Actuator with Simple Structure

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

제3도는 본 발명 액츄에이터의 요부구성을 나타낸 분리 사시도.Figure 3 is an exploded perspective view showing the main configuration of the actuator of the present invention.

Claims (3)

광기록 매체인 디스크 수직하빙에 설치되어 래디얼 방향 및 광측방향으로 직선 이동하면서 트랙위치를 검출하는 광픽-업 액츄에이터에 있어서, 상면 소정위치에 레이져빔 통과금(10)이 형성되고 이 통과공(10)으로 외각지게 동심원형으로 소정직경의 제1고정홈(220)과 제2고정홈(230)이 형성되며 일측 측면부에 복수의 고정공(210)이 형성된 플레이트(200)와, 상기 제1고정홈(220), 제2고정홈(230)에 끼워져 자기장을 발생하는 제1영구자석(300) 및 제2영구자석(400)과, 상기 고정공(210)에 관통되어 지지되는 소정길이의 와이어(500)와, 상기 와이어(500)에 지지되도록 양축에 복수의 삽입공(610)과 그 일측 중앙에 디스크 반사면에 초점을 집속하는 대물렌즈(630)가 설치되기 위해 소정직경의 장착공(620)이 형성된 대물렌즈 홀더(600)와, 상기 대물렌즈 홀더(600)의 하부 및 양측 소정위치에 권선되어 대물렌즈(630)를 광축방향으로의 움직임을 제어하는 포커싱 조정코일(700)과 래디얼 방향으로 움직임을 제어하는 트랙킹 조정코일(800)로 설치되어 구성된 것을 특징으로 하는 단순구조를 갖는 광픽-업 액츄에이터.In an optical pick-up actuator installed in a disc vertical hive, which is an optical recording medium, and detecting a track position while linearly moving in a radial direction and an optical side direction, a laser beam pass-through 10 is formed at a predetermined position on an upper surface thereof, and the through-hole 10 A plate 200 having a first fixing groove 220 and a second fixing groove 230 having a predetermined diameter and having a plurality of fixing holes 210 formed at one side surface thereof, the first fixing groove being formed concentrically to the outside. The first permanent magnet 300 and the second permanent magnet 400 inserted into the groove 220 and the second fixing groove 230 to generate a magnetic field, and wires having a predetermined length penetrated and supported by the fixing hole 210. 500 and a mounting hole having a predetermined diameter in order to be provided with a plurality of insertion holes 610 at both shafts so as to be supported by the wire 500, and an objective lens 630 for focusing the disk reflection surface at one center thereof. 620, the objective lens holder 600 is formed, and the lower and both of the objective lens holder 600 A simple structure characterized in that the winding is configured to a focusing adjustment coil 700 for controlling the movement of the objective lens 630 in the optical axis direction and a tracking adjustment coil 800 for controlling the movement in the radial direction. Optical pick-up actuator having. 제1항에 있어서, 제1영구자석(300)은 제1고정(220)홈에 상측이 N극 방향으로 끼워져 고정되고, 제2영구자석(400)은 제2고정홈(230)에 상측이 S극방향으로 끼워져 고정되도록 한 것을 특징으로 하는 단순구조를 갖는 광픽-업 액츄에이터.According to claim 1, the first permanent magnet 300 is fixed to the upper side is inserted into the N-pole direction in the first fixing 220 groove, the second permanent magnet 400 is the upper side in the second fixing groove 230 An optical pick-up actuator having a simple structure, characterized in that it is fitted in the S-pole direction to be fixed. 제1항에 있어서, 제1 영구 자석(300) 및 제2 영구 자석(400)은 제1,2고정홈(220)(230)의 상측보다 소정 길이 돌출되게 끼워져 고정되어 소정 높이의 자기장이 형성되도록 한 것을 특징으로 하는 단순구조를 갖는 광픽-업 액츄에이터.According to claim 1, The first permanent magnet 300 and the second permanent magnet 400 is inserted and fixed to protrude a predetermined length than the upper side of the first, second fixing grooves 220, 230 to form a magnetic field of a predetermined height Optical pick-up actuator having a simple structure, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950050361A 1995-12-15 1995-12-15 A compact optical pick up actuator KR0181816B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950050361A KR0181816B1 (en) 1995-12-15 1995-12-15 A compact optical pick up actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950050361A KR0181816B1 (en) 1995-12-15 1995-12-15 A compact optical pick up actuator

Publications (2)

Publication Number Publication Date
KR970050319A true KR970050319A (en) 1997-07-29
KR0181816B1 KR0181816B1 (en) 1999-04-15

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ID=19440403

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950050361A KR0181816B1 (en) 1995-12-15 1995-12-15 A compact optical pick up actuator

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Publication number Publication date
KR0181816B1 (en) 1999-04-15

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