KR950009551Y1 - Optical pick up apparatus - Google Patents
Optical pick up apparatus Download PDFInfo
- Publication number
- KR950009551Y1 KR950009551Y1 KR2019930013924U KR930013924U KR950009551Y1 KR 950009551 Y1 KR950009551 Y1 KR 950009551Y1 KR 2019930013924 U KR2019930013924 U KR 2019930013924U KR 930013924 U KR930013924 U KR 930013924U KR 950009551 Y1 KR950009551 Y1 KR 950009551Y1
- Authority
- KR
- South Korea
- Prior art keywords
- objective lens
- suspension
- optical pickup
- pickup device
- body portion
- Prior art date
Links
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
- G11B7/0932—Details of sprung supports
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
내용 없음.No content.
Description
제1도는 통상적인 광픽업(Optical Pick-Up)장치의 분리사시도.1 is an exploded perspective view of a conventional optical pick-up device.
제2도는 종래 광픽업장치의 서스펜션(Suspension)의 사시도.2 is a perspective view of a suspension of a conventional optical pickup device.
제3도는 본 고안에 따른 광픽업장치의 서스펜션의 분리사시도.Figure 3 is an exploded perspective view of the suspension of the optical pickup device according to the present invention.
제4도는 본 고안의 결합상태 사시도이다.4 is a perspective view of the coupled state of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
40 : 서스펜션 42 : 몸체부40: suspension 42: body
44 : 절개부 46 : 지지리브44: incision 46: support rib
48 : 광픽업장치 50 : 요오크48: optical pickup device 50: yoke
56 : 대물렌즈 58 : 대물렌즈홀더56: objective lens 58: objective lens holder
60 : 트랙킴조정코일 62 : 포커싱조정코일60: track Kim adjustment coil 62: focusing adjustment coil
본 고안은 광픽업장치(Optical Pick-Up)의 서스펜션(Suspension)에 관한 것으로, 더욱 상세하게는 각종 광학디스크플레이어에 적용되는 리니어트랙킹(Linear Tracking)방식의 광픽업장치에서 대물렌즈홀더의 좌우 양측 상하부에 설치되어 광축 및 래디얼(Radial)방향으로 요동하는 대물렌즈를 지지하는 서스펜션의 개량에 관한 것이다.The present invention relates to a suspension of an optical pick-up device, and more particularly, to the left and right sides of an objective lens holder in an optical pickup device of a linear tracking method applied to various optical disc players. The present invention relates to an improvement of a suspension provided at an upper and lower part to support an objective lens that swings in an optical axis and a radial direction.
일반적으로, 콤팩트디스크플레이어(CDP)나 레이저디스크플레이어(LDP) 또는 이들을 함께 사용할 수 있도록 구성한 멀티디스크플레이어(MDP)같은 각종 광학디스크플레이어에는 광기록매체인 디스크의 수직하방에서 디스크의 래디얼방향으로 직선이동하면서 디스크상의 원하는 트랙위치를 검출하고, 검출된 트랙위치에서는 디스크면상에 기록된 피트(Pit)에 레이저광을 입사시킨 다음, 그 반사광을 광학계를 통하여 검출하고, 이렇게 검출된 반사광을 신호로 변환시키는 방법으로 디스크면상의 기록내용을 재생하는 리니어트랙킹방식의 광픽업장치가 설치된다.In general, various optical disc players, such as a compact disc player (CDP), a laser disc player (LDP), or a multi disc player (MDP) configured to be used together, have a straight line in the radial direction of the disc in the vertical direction of the disc, which is an optical recording medium. While moving, the desired track position on the disc is detected, and at the detected track position, laser light is incident on a pit recorded on the disc surface. In this way, a linear tracking optical pickup apparatus for reproducing the recorded contents on the disc surface is provided.
이와 같은 리니어트랙킹방식의 광픽업장치(10)는 제1도에 도시된 바와 같이, 중앙부에 레이저통과공(12)이 형성된 베이스플레이트(14)상에 상기 레이저통과공(12)을 사이에 두고 전후방향으로 'U'자형의 요오크(16)를 설치하고, 그 요오크(16)내에는 자석(18)을 설치하는 한편, 상기 요오크(16) 사이의 레이저통과공(12) 윗쪽에는 디스크의 반사면에 촛점을 접속시키기 위한 대물렌즈(20)와, 상기 대물렌즈(20)를 잡아주는 대물렌즈홀더(22)를 동일축상에 설치하되, 상기 대물렌즈홀더(22)의 전후방향 외측에는 상기 대물렌즈(20)의 래디얼방향으로의 움직임을 제어하는 트랙킹조정코일(Tracking Coil)(24)을, 그 좌우방향 외측에는 상기 대물렌즈(20)의 광축방향으로의 움직임을 제어하는 포커싱조정코일(Focussing Coil)(26)을 설치한 구조로 이루어지는 바, 이 같은 구조의 광픽업광치(10)에서 상기 대물렌즈(20)의 광축 및 래디얼방향으로의 요동을 지지해주는 서스펜션(28)은 제2도에 도시된 바와 같이, 외부의 충격발생시 그 진동감쇠를 위하여 얇은 금속편 또는 구리박편을 재질로 하여 형성하고, 그 설치시에는 대물렌즈홀더(22)의 좌우양측면으로부터 돌설되는 결합돌기(30)에 선단을 끼워 결합하고, 그 후단은 별도의 결합구(32)를 이용하여 양쪽의 것을 서로 연결시키도록 되어 있다.In the linear tracking optical pickup device 10, as shown in FIG. 1, the laser passing hole 12 is interposed on a base plate 14 having a laser passing hole 12 formed at the center thereof. A 'U' shaped yoke 16 is installed in the front-rear direction, and a magnet 18 is installed in the yoke 16, and above the laser passing hole 12 between the yokes 16. An objective lens 20 for connecting the focus to the reflective surface of the disk and an objective lens holder 22 for holding the objective lens 20 are provided on the same axis, and the front and rear sides of the objective lens holder 22 are disposed. There is a tracking adjustment coil (Tracking Coil) 24 for controlling the movement of the objective lens 20 in the radial direction, and focusing adjustment for controlling the movement of the objective lens 20 in the optical axis direction outside the left and right directions. An optical pick having such a structure has a structure in which a coil (Focussing Coil) 26 is provided. As shown in FIG. 2, the suspension 28, which supports the optical axis of the objective lens 20 and the radial direction of the objective lens 20 in the up-light value 10, is a thin metal piece or copper for vibration damping when an external impact occurs. It is formed of a flake material, and when installed, the front end is fitted to the engaging projection 30 protruding from the left and right sides of the objective lens holder 22, the rear end of the both ends by using a separate coupling hole (32) Are to be connected to one another.
그러나, 이와 같은 종래의 서스펜션(28)에서는 그 구조상 대물렌즈홀더(22)와의 상호 지지점이 서스펜션(28)의 선단에 해당하므로 서스펜션(28) 자체가 앞쪽 또는 뒷쪽의 어느 한 방향으로만 길어지게 되어 광픽업장치(10) 전체의 크기가 커진다는 문제점이 있었고, 진동감쇠를 위해 일반적인 금속편이나 구리박편을 재질로하여 형성하기 때문에 작업성이 불량하고 구조가 매우 복잡하다는 문제점이 있었다.However, in such a conventional suspension 28, since the mutual support point with the objective lens holder 22 corresponds to the tip of the suspension 28, the suspension 28 itself is lengthened only in the front or rear direction. There was a problem in that the size of the entire optical pickup device 10 was increased, and because of the formation of a general metal piece or a copper foil material for vibration damping, there was a problem of poor workability and a very complicated structure.
본 고안은 이와 같은 종래의 여러가지 문제점들을 해결하기 위한 것으로, 광기록 매체인 디스크의 반사면에 촛점을 집속시키기 위한 대물렌즈와, 전후방향외측에 트랙킹조정코일이 설치되고, 좌우방향외측에 포커싱조정코일이 설치된 상태에서 상기 대물렌즈를 잡아주는 대물렌즈홀더로 이루어지는 광픽업장치에서 상기 대물렌즈홀더의 좌우측상하부에 고무 또는 합성수지로 된 얇은 직육면체 형태의 몸체부를 갖고, 그 몸체부의 길이방향 중심선상에 일정폭의 절개부가 형성되며 상기 몸체부의 중앙좌우측에 바깥쪽을 향하는 지지리브가 일체로 형성된 형태의 서스펜션을 설치하므로써 구조를 간단히 하고, 진동감쇠효과를 현저히 향상시킬 수 있으며, 작업성을 개선시킬 수 있도록 한 새로운 형태의 광픽업장치의 서스펜션을 제동하고자 하는 데 목적이 있다.The present invention solves various problems of the related art, and an objective lens for focusing on a reflective surface of a disk, which is an optical recording medium, and a tracking adjustment coil are provided outside the front and rear directions, and focusing adjustment is performed on the left and right directions. An optical pickup device comprising an objective lens holder for holding the objective lens in a state where a coil is installed, and having a thin rectangular parallelepiped body part made of rubber or synthetic resin on the upper and lower left and right sides of the objective lens holder, the body being fixed on the longitudinal center line in the longitudinal direction of the body part. The incision of the width is formed, and by installing the suspension of the form in which the support ribs facing outward are integrally formed at the center left and right sides of the body part, the structure can be simplified, the vibration damping effect can be remarkably improved, and the workability can be improved. To brake the suspension of a new type of optical pickup Never.
이하 첨부된 도면에 의하여 본 고안을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
본 고안에 따른 광픽업장치의 서스펜션(40)은 제3도에 도시된 바와 같이, 고무 또는 합성수지를 사출성형하여 얇은 직육면체 형태의 몸체부(42)를 형성하고 그 몸체부(42)의 길이 방향 중심선상에 탄성부여를 위한 일정폭의 절개부(44)를 형성하며, 상기 몸체부(42)의 중앙좌우측에는 각각 바깥쪽을 향하는 지지리브(46)를 일체로 형성하여 된 특징을 갖는다.The suspension 40 of the optical pickup device according to the present invention, as shown in Figure 3, by injection molding rubber or synthetic resin to form a thin rectangular parallelepiped body portion 42 and the longitudinal direction of the body portion 42 A cutout 44 having a predetermined width for imparting elasticity is formed on the center line, and the support ribs 46 facing outward are integrally formed on the center left and right sides of the body part 42.
이와 같은 본 고안에서 서스펜션(40)을 설치하기 위하여 광픽업장치(48)를 구성하는 전후 요오크(50)의 측면에 서스펜션지지대(52) 설치한다.In this invention, in order to install the suspension 40, the suspension support 52 is installed on the side of the front and rear yoke 50 constituting the optical pickup device 48.
이와 같은 본 고안에 따른 광픽업장치의 결합 및 작용은 다음과 같다.Such coupling and operation of the optical pickup device according to the present invention is as follows.
제3도 및 제4도에 도시된 바와 같이, 베이스플레이트 상면의 전, 후에 'U'자형의 요오크를 설치하고, 그 요오크(50)내에는 자석(54)을 설치하는 한편, 상기한 각 요오크(50) 사이에는 대물렌즈(56)와, 상기 대물렌즈(56)를 잡아주는 대물렌즈홀더(58)를 설치하되, 상기 대물렌즈홀더(58)의 전후방향외측에는 트랙킹조정코일(60)을, 그 좌우방향외측에는 포커싱조정코일(62)을 설치한 구조의 광픽업장치(48)에서 상기 각 요오크(50) 사이의 양측면에 서스펜션지지대(52)를 설치하고, 상기 각 서스펜션지지대(52)의 상하부에 서스펜션(40)의 몸체부(42)상의 지지리브(46)를 부착 설치한다.3 and 4, the U-shaped yoke is provided before and after the upper surface of the base plate, and the magnet 54 is provided in the yoke 50. An objective lens 56 and an objective lens holder 58 for holding the objective lens 56 are installed between each of the yokes 50, and a tracking adjustment coil is provided on the outside of the front and rear directions of the objective lens holder 58. 60, the suspension support 52 is provided on both side surfaces between the respective yoke 50 in the optical pickup device 48 having the focusing adjustment coil 62 on the outside of the left and right directions. The support ribs 46 on the body portion 42 of the suspension 40 are attached to the upper and lower portions of the support 52.
이와 같은 본 고안에 따른 서스펜션(40) 설치구조에서 외부로부터 좌우 또는 상하 방향의 충격힘이 가해질때 상기 서스펜션(40)의 몸체부(42) 상에 형성된 절개부(44)의 탄성작용에 의하여 그 충격힘이 감소되며, 이에 따라서 대물렌즈의 요동운동이 안정되게 이루어진다.In the suspension 40 installation structure according to the present invention, when the impact force in the left and right or up and down directions is applied from the outside by the elastic action of the cutout 44 formed on the body portion 42 of the suspension 40. The impact force is reduced, so that the swinging motion of the objective lens is made stable.
상기와 같은 본 고안을 적용하면, 서스펜션자체를 고무 또는 합성수지를 사출성형하여 제조하기 때문에 구조가 간단하고, 외부충격에 대한 진동감쇠효과가 매우 우수하다는 효과가 있으며, 접착제를 이용하여 서스펜션지지대에 부착시키므로써, 그 작업성이 매우 간단하다는 효과가 있다.Applying the present invention as described above, since the suspension itself is manufactured by injection molding rubber or synthetic resin, the structure is simple, and the effect of vibration damping against external shock is very excellent, and attached to the suspension support using an adhesive By doing so, the workability is very simple.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930013924U KR950009551Y1 (en) | 1993-07-26 | 1993-07-26 | Optical pick up apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930013924U KR950009551Y1 (en) | 1993-07-26 | 1993-07-26 | Optical pick up apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950004598U KR950004598U (en) | 1995-02-18 |
| KR950009551Y1 true KR950009551Y1 (en) | 1995-11-08 |
Family
ID=19359816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930013924U KR950009551Y1 (en) | 1993-07-26 | 1993-07-26 | Optical pick up apparatus |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950009551Y1 (en) |
-
1993
- 1993-07-26 KR KR2019930013924U patent/KR950009551Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR950004598U (en) | 1995-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0162576B1 (en) | Optical pick up actuator for disk player | |
| KR960006093B1 (en) | Object lens driving apparatus of optical disk | |
| US6480460B1 (en) | Actuator for an objective lens of an optical pickup for preventing skew of the optical axis | |
| JP2003233919A (en) | Optical pickup | |
| KR960007895B1 (en) | Optical pick-up actuator | |
| KR950009551Y1 (en) | Optical pick up apparatus | |
| US20100067333A1 (en) | Objective lens actuator and an optical pickup | |
| US5901133A (en) | Objective lens actuator | |
| US7002878B2 (en) | Objective lens driving device and optical pickup device using the same | |
| JP3401774B2 (en) | Two-axis actuator | |
| KR100647947B1 (en) | Optical recording and reading apparatus for near field | |
| KR0162575B1 (en) | Optical pick up actuator for optical disk player | |
| KR0127518B1 (en) | Light pick-up actuator | |
| KR950012204B1 (en) | Optical actuator | |
| JPH09161288A (en) | Objective lens driving gear for optical pickup | |
| KR0120588Y1 (en) | Lens holder of disk tracing unit actuator | |
| JPH07201054A (en) | Optical pickup device | |
| KR100192132B1 (en) | A horizontal moving type optical pickup actuator | |
| KR19980083599A (en) | Integrated Actuator for Optical Pickup | |
| JPS6076039A (en) | Objective lens driver | |
| JP3471497B2 (en) | Method of manufacturing objective lens driving device | |
| KR100690595B1 (en) | Actuator For Optical Pickup | |
| KR100364353B1 (en) | Supporting structure of optical pickup actuator | |
| KR200144862Y1 (en) | Magnet fixing structure of actuator | |
| JPH08147735A (en) | Biaxial actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20001027 Year of fee payment: 6 |
|
| LAPS | Lapse due to unpaid annual fee |