KR0123015Y1 - Object lens drive mechanism supporter of optical pick-up - Google Patents
Object lens drive mechanism supporter of optical pick-upInfo
- Publication number
- KR0123015Y1 KR0123015Y1 KR2019950024503U KR19950024503U KR0123015Y1 KR 0123015 Y1 KR0123015 Y1 KR 0123015Y1 KR 2019950024503 U KR2019950024503 U KR 2019950024503U KR 19950024503 U KR19950024503 U KR 19950024503U KR 0123015 Y1 KR0123015 Y1 KR 0123015Y1
- Authority
- KR
- South Korea
- Prior art keywords
- holder
- objective lens
- support
- fixed
- vortex
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
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- 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
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
대물렌즈를 탑재하는 홀더를 수평, 수직방향으로 요동될 수 있도록 지지시키는 대물렌즈 구동부 지지장치에 대해 개시한다. 이 장치의 지지수단은 양단부에 각각 와선형으로 감겨진 제1, 2와선부(61)(62)와 이 제1, 2 와선부 사이를 연결하는 탄성지지부(63)를 구비하며, 그 제2와선부가 상기 고정블럭에 고정되고 제1와선부가 상기 홀더의 일측면에 고정되는 탄성지지부재(60) 구비하여 된 구조를 가진다. 이 지지장치는 홀더를 안정하게 지지시킬 뿐만 아니라 그 조립을 간편하게 한다.Disclosed is an objective lens driver supporting apparatus for supporting a holder on which an objective lens is mounted so as to be able to swing in horizontal and vertical directions. The supporting means of the device comprises first and second vortex sections 61 and 62 wound in spirals at both ends, respectively, and an elastic support section 63 connecting the first and second vortex sections to the second section. The spiral portion is fixed to the fixed block and the first spiral portion has a structure provided with an elastic support member 60 is fixed to one side of the holder. This support not only stably supports the holder but also simplifies its assembly.
Description
제1도는 종래 대물렌즈 구동부 지지장치를 나타낸 사시도.1 is a perspective view showing a conventional objective lens driver support device.
제2도는 본 고안에 따른 대물렌즈 구동부 지지장치를 나타낸 사시도.2 is a perspective view showing an objective lens driving unit support device according to the present invention.
제3도는 제2도의 개략적 평면도.3 is a schematic plan view of FIG.
제4도는 본 고안에 따른 지지장치의 지지부재를 나타낸 개략적 사시도이다.4 is a schematic perspective view showing a support member of a support device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
40 : 홀더 41 : 대물렌즈40: holder 41: objective lens
50 : 고정블럭 60 : 지지부재50: fixed block 60: support member
본 고안은 광 기록 및/또는 재생장치에 설치되는 광픽업의 대물렌즈 구동부 지지장치에 관한 것으로서, 상세하게는 트랙킹 및 포커싱을 위하여 대물렌즈 구동부가 수평, 수직방향으로 구동될때 각 방향의 변위에 대하여 그 대물렌즈 구동부를 탄성적으로 지지하는 대물렌즈 구동부 지지장치에 관한 것이다.The present invention relates to an object pickup drive support device for an optical pickup installed in an optical recording and / or reproducing apparatus, and more specifically, to the displacement in each direction when the objective lens drive is driven in the horizontal and vertical directions for tracking and focusing. An object lens drive unit support apparatus for elastically supporting the object lens drive unit.
일반적으로 LDP(Laser Disc Player), CDP(Compact Disc Player), MODD(Magnetic Optical Disc Driver)등 광기록매체를 이용한 각 플레이어에는 레이저 등의 광빔을 주사하고 그 매체로 부터 반사되는 광빔을 검출하는 광픽업이 설치된다. 이와같은 광 기록매체용 픽업은 기록매체에 기록된 정보를 판독하는 장치로서, 그 판독방식이 레이저빔을 주사하여 기록매체에 반사되는 빔을 통해 2진신호를 읽어나가는 것이다. 따라서 광기록매체용 픽업은 신호의 올바른 판독을 위하여 대물렌즈 초점 뿐만아니라 원하는 트랙에 정확하게 맞춰져야 할 필요가 있다. 이에 따라 상기 대물렌즈의 구동부에는 구동부 본체가 적어도 수평, 수직방향으로 미세요동 할 수 있는 탄성지지수단이 구비되어야 한다.In general, each player using an optical recording medium such as LDP (Laser Disc Player), CDP (Compact Disc Player), or MODD (Magnetic Optical Disc Driver) scans a light beam such as a laser and detects the light beam reflected from the medium. The pickup is installed. Such a pickup for an optical recording medium is an apparatus for reading information recorded on the recording medium. The reading method scans a binary beam through a beam reflected by the recording medium by scanning a laser beam. Therefore, the pickup for the optical recording medium needs to be precisely adjusted to the desired track as well as the objective lens focus for correct reading of the signal. Accordingly, the driving unit of the objective lens should be provided with an elastic support means that the driving unit body can be moved at least horizontally and vertically.
제1도는 종래 대물렌즈 구동부 지지장치를 나타낸다. 베이스(20)의 일측에 고정블럭(28)이 고정되어 있고, 이 고정블럭(28)에는 대물렌즈(11)가 탑재되는 홀더(10)가 수평, 수직방향으로 미세이동가능하게 복수의 탄성와이어부재(12)로 지지되어 있다. 이들 와이어부재(12)는 홀더(10)가 평행상태를 유지하도록, 홀더(10)의 양측면 상하부에 대칭적으로 설치된다.1 shows a conventional objective lens driver supporting device. A fixing block 28 is fixed to one side of the base 20, and the holder 10 on which the objective lens 11 is mounted is fixed to the fixing block 28 such that the plurality of elastic wires can be moved finely in the horizontal and vertical directions. It is supported by the member 12. These wire members 12 are symmetrically installed on both sides of the holder 10 so as to keep the holder 10 in parallel.
그리고 홀더(10)의 외주면에는 포커싱코일(25)이 감겨지고, 홀더(10)의 양측에는 각각 트래킹코일(26)이 부착되어 있다. 또한, 홀더(10)의 양측부에는 각각 상기 베이스(20)로부터 절곡되어 연장형성된 외부요크(21a)(21b)와 내부요크(22a)(22b)가 마련되어 있으며, 각 외부요크(21a)(21b)의 일측면에는 상기한 코일(25)(26)의 일부가 자계내에 놓이도록 영구자석(27a)(27b)이 부착되어 있다.The focusing coil 25 is wound around the outer circumferential surface of the holder 10, and the tracking coils 26 are attached to both sides of the holder 10, respectively. In addition, both sides of the holder 10 are provided with outer yokes 21a and 21b and inner yokes 22a and 22b which are bent and extended from the base 20, respectively, and each outer yoke 21a and 21b. The permanent magnets 27a and 27b are attached to one side of the coil so that a part of the coils 25 and 26 are placed in the magnetic field.
따라서 상기 각 코일(25)(26)에는 포커싱 및 트래킹 에러신호 검출전류가 인가되어서 요크(21a, 21b)(22a, 22b) 및 영구자석(27a)(27b)와 함께 자기회로를 형성함으로써, 대물렌즈(11)가 탑재된 홀더(10)를 디스크(미도시)의 트랙킹방향 및 포커싱방향으로 미세 조정할 수 있게 되어 있다.Therefore, a focusing and tracking error signal detection current is applied to each of the coils 25 and 26 to form a magnetic circuit together with the yoke 21a, 21b, 22a, 22b and the permanent magnets 27a, 27b. The holder 10 on which the lens 11 is mounted can be finely adjusted in the tracking direction and focusing direction of a disc (not shown).
그러나 상기와 같이 대물렌즈(11)를 탑재한 홀더(10)는 복수의 와이어부재(12)로 지지됨으로써 그 설치가 번거롭다는 문제점이 발생된다.However, as described above, the holder 10 having the objective lens 11 mounted thereon is supported by the plurality of wire members 12, which causes troublesome installation thereof.
본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 홀더의 지지구조가 간단하여 설치가 간편하고 조립시 지지부의 변형 및 단선 등의 문제점을 해결하는 광 픽업의 대물렌즈 구동부 지지장치를 제공하는 데 그 목적이 있는 것이다.The present invention has been made to solve the above problems, the support structure of the holder is simple to provide easy installation and to provide an objective lens driving unit support device of the optical pickup that solves problems such as deformation and disconnection of the support portion during assembly. Its purpose is to.
상기 목적을 달성하는 본 고안은 광 통과공이 형성된 베이스와, 이 베이스의 일측에 고정설치되는 고정블럭과, 대물렌즈가 탑재되며 소정의 구동수단에 의해서 수평/수직방향으로 유동되는 홀더와, 상기 홀더를 상기 고정블럭에 유동가능하게 지지시키는 지지수단을 포함하는 광픽업의 대물렌즈 구동부 지지장치에 있어서, 상기 지지수단은 양단부에 각각 와선형으로 감겨진 제1, 2와선부와 이 제1, 2와선부 사이를 연결하는 지지부를 구비하며, 그 제2와선부가 상기 고정블럭에 고정되고 제1와선부가 상기 홀더의 일측면에 고정되는 탄성지지부재를 구비하여 된 것을 특징으로 한다.The present invention to achieve the above object is a base formed with a light passing hole, a fixed block fixed to one side of the base, a holder is mounted on the objective lens is moved in the horizontal / vertical direction by a predetermined driving means, and the holder An objective lens driving unit support apparatus for an optical pickup, comprising: support means for supporting the movable block to the fixed block, wherein the support means includes first and second vortex portions wound in a spiral shape at both ends thereof, and the first and second vortex portions respectively. And a support portion connecting the vortex portions, wherein the second vortex portion is fixed to the fixing block and the first vortex portion is provided with an elastic support member fixed to one side of the holder.
여기서 상기 지지부는 원형 또는 사각의 단면을 가지는 탄성부재로 형성되는 것이 바람직하다.Here, the support is preferably formed of an elastic member having a circular or square cross section.
상기 본 고안의 특징에 따르면, 상기 탄성지지부재는 제1, 2와선부를 구비함으로써 홀더를 고정블럭에 안정하게 지지시킬 수 있을 뿐만 아니라, 그 조립을 간편하게 한다.According to the feature of the present invention, the elastic support member is provided with the first, second vortex portion can not only stably support the holder to the fixed block, but also simplify the assembly thereof.
이하 첨부된 도면을 참조하면서 본 고안에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 광 픽업의 대물렌즈 지지장치를 개략적으로 나타낸 제2도 및 제3도와 탄성지지부재를 발췌하여 나타낸 제4도를 참조하면, 이는 베이스(30)의 일측에 고정블럭(50)이 고정되어 있고, 이 고정블럭(50)에는 대물렌즈(41)가 탑재되는 홀더(40)가 수평, 수직방향으로 미세 이동가능하게 소정의 지지수단에 의해서 지지되어 있으며, 소정의 구동 단에 의해서 상기 홀더(40)는 미세 이동될 수 있도록 되어 있다.Referring to FIGS. 2 and 3, which are schematic views of the objective lens support apparatus of the optical pickup according to the present invention, and FIG. 4, which is an extract of the elastic support member, the fixed block 50 is formed at one side of the base 30. The holder 40 on which the objective lens 41 is mounted is supported on the fixing block 50 by predetermined supporting means so as to be able to move finely in the horizontal and vertical directions. The holder 40 is adapted to be moved finely.
상기 구동수단은 통상과 마찬가지로 자기회로가 구성되는 바, 홀더(40)에는 한쌍의 관통공이 형성되어 있고, 이 관통공에는 포커싱코일(44a)(44b)과 트래킹코일(45a)(45b)이 부착되어 있으며, 상기한 코일들이 자계내에 놓이도록 각각 영구자석(43a)(43b)이 부착된 요크부재(42a)(42b)가 관통공에 진입되어 있다.The drive means is composed of a magnetic circuit as usual, a pair of through holes are formed in the holder 40, the focusing coils 44a, 44b and tracking coils 45a, 45b are attached to the through holes. The yoke members 42a and 42b to which the permanent magnets 43a and 43b are attached enter the through holes so that the coils are placed in the magnetic field.
한편, 상기 지지수단은 본 고안의 특징적 구성으로서, 홀더(40)는 양단부에 각각 와선형으로 감겨진 제1, 2와선부(61)(62)와 이 제 1, 2와선부(61)(62) 사이를 연결하는 지지부(63)를 구비하는 탄성지지부재(60)에 의해서 고정블럭(50)에 지지된 구조를 가진다.On the other hand, the support means is a characteristic configuration of the present invention, the holder 40 is first and second vortex portion 61, 62 and the first and second vortex portion 61 ( 62 has a structure supported by the fixed block 50 by the elastic support member 60 having a support portion 63 for connecting therebetween.
여기서 상기 제2와선부(62)는 상기 고정블럭(50)에 고정되고 제1와선부(61)는 상기 홀더(40)의 일측면 중앙에 고정된다.Here, the second twisted line portion 62 is fixed to the fixing block 50 and the first twisted line portion 61 is fixed to the center of one side of the holder 40.
한편, 상기 지지부(63)는 원형 또는 사각의 단면을 가지는 탄성부재로 형성되며, 상기 제1, 2와선부(61)(62)는 상기 지지부(63)와 일체로 형성된다. 상기 지지부(63)가 원형 단면인 경우 홀더(40)는 임의방향으로 미세 요동될 수 있으며, 사각단면인 경우 포커싱방향 및 트랙킹방향의 2방향으로 미세 요동될 수 있다.On the other hand, the support portion 63 is formed of an elastic member having a circular or rectangular cross section, and the first and second vortex portions 61 and 62 are integrally formed with the support portion 63. When the support 63 has a circular cross section, the holder 40 may be finely swinged in an arbitrary direction, and in the case of a rectangular cross section, the holder 40 may be finely swinged in two directions, a focusing direction and a tracking direction.
상기와 같은 구성을 가지는 본 고안에 따른 지지장치는 상기 각 코일(44a, 44b)(45a, 45b)에 포커싱 및 트래킹 에러신호 검출전류가 인가되어서 요크(42a, 42b) 및 영구자석(43a)(43b)과 함께 자기회로를 형성하고, 이 자기회로에 의해서 대물렌즈(41)가 탑재된 홀더(40)가 디스크(미도시)의 트랙킹방향 및 포커싱방향으로 미세 이동되면서 광빔의 포커스위치 및 트랙위치를 조정할 때 상기한 지지부재(60)는 홀더(40)를 수평, 수직방향으로 지지할 수 있게 된다.According to the present invention, the support device having the configuration as described above is provided with a focusing and tracking error signal detection current applied to each of the coils 44a, 44b, 45a, 45b, so that the yoke 42a, 42b and the permanent magnet 43a ( 43b) together with the magnetic circuit, by which the holder 40 on which the objective lens 41 is mounted is finely moved in the tracking direction and focusing direction of the disk (not shown), thereby focusing and tracking the position of the light beam. When adjusting the support member 60 is able to support the holder 40 in the horizontal, vertical direction.
한편, 상기 지지부재(60)는 각 양단부에 와선형(渦線形)으로 연장된 제1, 2와선부(61)(62)를 구비함으로서 홀더(40)을 안정하게 지지시킬 수 있게 된다.On the other hand, the support member 60 is capable of stably supporting the holder 40 by having first and second vortex portions 61 and 62 extending in a vortex at both ends thereof.
상술한 바와 같이 본 고안에 따른 지지장치는 단일의 지지부재(60)로서 홀더(40)를 지지함으로서, 그 조립을 간편하게 하고 홀더를 안정하게 지지시킬 수 있는 이점을 가진다.As described above, the support apparatus according to the present invention has the advantage of supporting the holder 40 as a single support member 60, thereby simplifying its assembly and stably supporting the holder.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950024503U KR0123015Y1 (en) | 1995-09-12 | 1995-09-12 | Object lens drive mechanism supporter of optical pick-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950024503U KR0123015Y1 (en) | 1995-09-12 | 1995-09-12 | Object lens drive mechanism supporter of optical pick-up |
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| Publication Number | Publication Date |
|---|---|
| KR970014983U KR970014983U (en) | 1997-04-28 |
| KR0123015Y1 true KR0123015Y1 (en) | 1998-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR2019950024503U KR0123015Y1 (en) | 1995-09-12 | 1995-09-12 | Object lens drive mechanism supporter of optical pick-up |
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1995
- 1995-09-12 KR KR2019950024503U patent/KR0123015Y1/en not_active IP Right Cessation
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|---|---|
| KR970014983U (en) | 1997-04-28 |
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