KR0158849B1 - A tracking and focusing coil adjustment device of optical pick-up actuator - Google Patents
A tracking and focusing coil adjustment device of optical pick-up actuator Download PDFInfo
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- KR0158849B1 KR0158849B1 KR1019950045187A KR19950045187A KR0158849B1 KR 0158849 B1 KR0158849 B1 KR 0158849B1 KR 1019950045187 A KR1019950045187 A KR 1019950045187A KR 19950045187 A KR19950045187 A KR 19950045187A KR 0158849 B1 KR0158849 B1 KR 0158849B1
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- adjustment coil
- tracking
- objective lens
- lens holder
- focusing adjustment
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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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
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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
-
- 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
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- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
본 발명은 광픽업 액츄에이터의 트랙킹 및 포커싱 조정코일 보정장치에 관한 것으로서 외주면에 포커싱 조정코일(111) 및 트랙킹 조정코일(112)이 부착 설치된 대물렌즈홀더(110)를 갖는 광픽업 액츄에이터에 있어서, 상기 대물렌즈 홀더(110)가 상부측에 고정 설치되는 고정부재(100)와, 상기 고정부재(100)가 상부면에 형성된 설치홈(91)내에 안치되고, 복수개의 지지대(80)를 저면에서 받쳐주는 받치판(90)과, 상기 받침판(90)에서 상부로 돌출된 지지대(80)상에 고정 설치되어 내부에 변환기어부(51)가 장착된 본체(50)와, 상기 본체(50)의 변환기어부(51) 측면부분에 돌설된 회전축(40)에 결합된 회전레버(30)의 회전에 의해 변환기어부(51)의 저면에서 상,하로 이동하는 상,하이동축(60)과, 상기 상,하이동축(60)의 끝단부에 부착되어 상기 고정부재(100)에 설치된 대물렌즈홀더(110)의 포커싱 조정코일(111) 및 트랙킹 조정코일(112)를 눌러주는 누름부재(70)로 구성된 것을 특징으로 하는 광픽업 액츄에이터의 트랙킹 및 포커싱 조정코일 보정장치인바, 대물렌즈홀더에 부설된 트랙킹 조정코일 및 포커싱 조정코일의 평탄도 및 직진도를 보정하여서 광픽업 액츄에이터의 부공진을 해소하도록 해준다.The present invention relates to a tracking and focusing adjustment coil correcting apparatus for an optical pickup actuator, the optical pickup actuator having an objective lens holder 110 provided with a focusing adjustment coil 111 and a tracking adjustment coil 112 attached to an outer circumferential surface thereof. The objective lens holder 110 is fixed to the fixing member 100 is installed on the upper side, and the fixing member 100 is placed in the mounting groove 91 formed on the upper surface, and supports the plurality of supports 80 from the bottom The main body 50 is fixedly installed on the support plate 90, the support 80 protruding upward from the support plate 90, and the converter 50 is mounted therein, and the converter of the main body 50. The upper and lower moving shafts 60, which move up and down on the bottom surface of the converter fish portion 51 by the rotation of the rotary lever 30 coupled to the rotating shaft 40 protruding from the side surface of the fisherman 51, and the upper, An objective lens attached to the end of the high coaxial shaft 60 and installed in the fixing member 100. The tracking and focusing adjustment coil correction device of the optical pickup actuator, characterized in that it consists of a pressing member 70 that presses the focusing adjustment coil 111 and the tracking adjustment coil 112 of the holder 110, and installed in the objective lens holder. By correcting the flatness and straightness of the tracking tracking coil and focusing adjustment coil, it is possible to eliminate the negative resonance of the optical pickup actuator.
Description
제1도는 일반적인 와이어 타입 액츄에이터의 사시도.1 is a perspective view of a general wire type actuator.
제2도는 본 발명에 따른 트랙킹 및 포커싱 조정코일 보정장치 구성도.2 is a block diagram of a tracking and focusing adjustment coil correction apparatus according to the present invention.
제3도는 본 발명에 따른 고정부재의 외관 사시도.3 is an external perspective view of a fixing member according to the present invention.
제4도는 본 발명에 따른 코일 설치대의 고정돌기에 대물렌즈홀더가 장착되는 상태도.4 is a state in which the objective lens holder is mounted on the fixing projection of the coil mounting unit according to the present invention.
제5도는 본 발명에 따른 트랙킹 및 포커싱 조정코일 보정장치의 사용 상태도.5 is a state diagram used in the tracking and focusing adjustment coil correction apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
30 : 회전레버 40 : 회전축30: rotation lever 40: rotation axis
50 : 본체 60 : 상·하이동축50: main body 60: up / high moving shaft
70 : 누름부재 80 : 지지대70: pressing member 80: support
90 : 받침판 100 : 고정부재90: support plate 100: fixing member
본 발명은 광픽업 액츄에이터의 트랙킹 조정코일 및 포커싱 조정코일에 관한 것으로서, 특히 대물렌즈홀더 주위에 감겨진 포커싱 조정코일과 그 포커싱 조정코일의 외주면의 접착된 트랙킹 조정코일의 평탄도 및 수직도를 정밀하게 보정하므로써 대물렌즈홀더가 동작할 때 발생하는 부공진을 해소하여 광픽업 액츄에이터의 성능을 향상시키도록 해주는 광픽업 액츄에이터의 트랙킹 및 포커싱 조정코일 보정장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tracking adjustment coil and a focusing adjustment coil of an optical pickup actuator, and in particular, to accurately measure the flatness and verticality of the focusing adjustment coil wound around the objective lens holder and the bonded tracking adjustment coil on the outer circumferential surface of the focusing adjustment coil. The present invention relates to a tracking and focusing adjustment coil correcting apparatus for an optical pickup actuator, which improves the performance of an optical pickup actuator by eliminating negative resonance generated when the objective lens holder operates.
일반적으로, 광픽업 액츄에이터는 제1도에 도시된 바와같이, 중앙부에 레이저빔 통과공(도시되지 않음)이 형성되고 일측 방향 중심선상의 레이저빔 통과공 양쪽에 각각 일정한 간격을 갖는 한쌍의 내외측 요오크(10)(10')가 수직으로 돌설된 형태의 베이스플레이트(11)와, 상기 각 한쌍의 요오크(10)(10')중 바깥쪽 요오크(10')의 내면에 설치되는 영구자석(12)과, 상기 베어스플레이트(11)상의 레이저빔 통과공 상방에 설치되고, 상면 중앙에는 레이저빔 통과공을 통하여 입사된 레이저빔을 디스크의 기록층에 조사시키는 대물렌즈(13)가 장착되는 대물렌즈홀더(14)와, 상기 대물렌즈 홀더(14)의 외면 소정위치에 설치된 상태에서 상기 내측요오크(10)에 끼워져 전류인가시 영구자석(12)과의 상호작용에 의하여 전자기력을 발생시켜 대물렌즈홀더(14)의 광축방향 움직임과 트랙킹 방향 움직임을 제어하는 포커싱 조정코일(17) 및 트랙킹 조정코일(16)과, 상기 대물렌즈홀더(14)의 양측 상하부에 돌설된 고정편(18)에 일단이 고정되고, 타단은 별도의 고정플레이트(19) 및 PCB(20)에 고정되어 외부로 인가되는 충격을 감쇄시켜주는 서스팬션(21)으로 이루어져 있다.In general, as shown in FIG. 1, the optical pickup actuator includes a pair of inner and outer sides having a laser beam through hole (not shown) formed in the center and having a predetermined distance on both sides of the laser beam through hole on one direction center line. The yoke 10, 10 'is installed on the inner surface of the base plate 11 of the vertical protrusion and the outer yoke 10' of each of the pair of yoke 10, 10 ' The permanent magnet 12 and the objective lens 13 provided above the laser beam passing hole on the bare plate 11 and irradiating the recording layer of the disk with the laser beam incident through the laser beam passing hole in the center of the upper surface The magnetic lens holder 14 is mounted on the inner yoke 10 in a state where the objective lens holder 14 is installed at a predetermined position on the outer surface of the objective lens holder 14, and when the current is applied, electromagnetic force is generated by interaction with the permanent magnet 12. To move in the optical axis direction of the objective lens holder 14 One end is fixed to the focusing adjustment coil 17 and the tracking adjustment coil 16 and the fixing pieces 18 which protrude from both sides of the objective lens holder 14, and the other end is separate. It is fixed to the fixing plate 19 and the PCB 20 is made of a suspension 21 to attenuate the impact applied to the outside.
이와 같이 구성되는 광픽업 액츄에이터(15)의 조립 제작시 상기 서스펜션(21)을 설치하기 위해서는 그 서스펜셔(21)의 일단을 상기 대물렌즈홀더(14)상의 고정편(18)에 끼워 고정하고 반대쪽 끝은 상기 요오크(10)의 후방에 위치되는 별도의 고정플레이트(19) 및 PCB(20)에 고정되어지는 것이다.In order to install the suspension 21 at the time of assembling and manufacturing the optical pickup actuator 15 configured as described above, one end of the suspension 21 is inserted into the fixing piece 18 on the objective lens holder 14 and fixed. The opposite end is fixed to the separate fixing plate 19 and the PCB 20 which are located at the rear of the yoke 10.
이와 같이, 상기한 대물렌즈홀더(14)의 외주부에는 대물렌즈홀더(14)를 포커싱 방향으로 구동시키는 포커싱 조정코일(17)이 감겨진 상태에서 접착되어 있으며 이러한 포커싱 조정코일(17)의 양측면에 각각 두 개씩의 트랙킹 조정코일(16)이 유브이 본드에 의해 접착 설치되어진다.In this way, the focusing adjustment coil 17 for driving the objective lens holder 14 in the focusing direction is bonded to the outer circumferential portion of the objective lens holder 14 and is bonded to both sides of the focusing adjustment coil 17. Two tracking adjustment coils 16 are attached to each other by a bond bond.
그런데, 상기한 바와같이, 대물렌즈홀더(14) 주위에 감겨져서 설치되는 포커싱 조정코일(17)은 길이가 길고 굵기가 가는 와이어를 수백번의 회전수로 감겨진 상태에서 대물렌즈홀더(14) 주위에 설치되기 때문에 포커싱 조정코일(17)이 대물렌즈홀더(14) 주위에 긴밀하게 접촉돠어지지 않고 외측으로 약간 굴곡지게 설치되는 경우가 발생되어지고, 이로인해 포커싱 조정코일(17)의 외주부에 본딩 접착되는 트랙킹 조정코일(16) 역시 외측 방향으로 만곡지게 설치되므로써 대물렌즈홀더(14)가 포커싱 및 트랙킹 구동 방향으로 동작할 때 무게중심이 정확하지 않게되어 대물렌즈홀더(14)에 부공진이 발생되는 문제점이 있었다.However, as described above, the focusing adjustment coil 17 wound and installed around the objective lens holder 14 has an objective lens holder 14 in a state in which a long and thin wire is wound at several hundred revolutions. Since the focusing adjustment coil 17 is installed around the objective lens holder 14 without being in close contact with each other because it is installed around the object lens 14, the focusing adjustment coil 17 is slightly bent outwardly. Since the tracking adjustment coil 16, which is bonded and bonded, is also installed to be bent in the outward direction, the center of gravity becomes inaccurate when the objective lens holder 14 operates in the focusing and tracking driving directions, so that negative resonance is caused in the objective lens holder 14. There was a problem that occurred.
특히, 자동차용 씨디 플레이어의 광픽업 장치에 사용되는 대물렌즈홀더(14)의 크기는 작고 두께는 매우 얇기 때문에 대물렌즈홀더(14)의 주위에 설치되는 트랙킹 조정코일(16) 및 트랙킹 조정코일(17)의 굴곡정도가 더욱 더 커지게 되므로 대물렌즈홀더(14)가 떨리는 현상인 부공진이 심하게 발생 되어진다.In particular, since the size of the objective lens holder 14 used in the optical pickup device of the automotive CD player is very small and the thickness is very thin, the tracking adjustment coil 16 and the tracking adjustment coil 16 installed around the objective lens holder 14 ( Since the degree of bending of 17) becomes larger, negative resonance, which is a phenomenon that the objective lens holder 14 is shaken, is severely generated.
본 발명은 이러한 점을 감안하여 안출한 것으로서, 대물렌즈홀더 주위에 감겨진 포커싱 조정코일과 그 포커싱 조정코일의 외주면에 접착된 트랙킹 조정코일의 평탄도 및 수직도를 정밀하게 보정하므로써 대물렌즈홀더가 동작할 때 발생하는 부공진 현상을 해소하여 광픽업 액츄에이터의 성능을 향상시키는 것이 목적이다.The present invention has been made in view of this point, and the objective lens holder is accurately corrected by correcting the flatness and verticality of the focusing adjustment coil wound around the objective lens holder and the tracking adjustment coil bonded to the outer circumferential surface of the focusing adjustment coil. It is an object to improve the performance of the optical pickup actuator by eliminating the negative resonance phenomenon that occurs during operation.
이러한 목적은 외주면에 포커싱 조정코일 및 트랙킹 조정코일이 부착설치된 대물렌즈홀더를 갖는 광픽업 액츄에이터에 있어서, 상기 대물렌즈 홀더가 상부측에 고정 설치되는 고정부재와, 상기 고정부재가 상부면에 형성된 설치홈내에 안치되고, 복수개의 지지대를 저면에서 받쳐주는 받침판과, 상기 받침판에서 상부로 돌출된 지지대상에 고정 설치되어 내부에 변환기어부가 장착된 본체와, 상기 본체의 변환기어부 측면부분에 돌설된 회전축에 결합된 회전레버의 회전에 의해 변환기어부의 저면에서 상·하로 이동되는 상·하이동축과, 상기 상·하이동축의 끝단부에 부착되어 상기 고정부재에 설치 된 대물렌즈홀더의 포커싱 조정코일 및 트랙킹 조정코일를 눌러주는 누름부재로 구성된 것을 광픽업 액츄에이터의 트랙킹 및 포커싱 조정코일 보정장치를 제공하므로써 달성된다.This object is an optical pickup actuator having an objective lens holder having a focusing adjustment coil and a tracking adjustment coil attached to an outer circumferential surface, the fixing member of which the objective lens holder is fixed to an upper side, and the fixing member formed on an upper surface of the optical pickup actuator. It is placed in the groove, the support plate for supporting a plurality of supports from the bottom, fixed to the support object protruding upward from the support plate, the main body with a transducer gear mounted therein, and a rotating shaft protruding from the side of the transducer gear of the main body Focusing adjustment coil and tracking of the upper and lower moving shafts which are moved up and down from the bottom of the transducer gear part by the rotation of the combined rotary lever, and the objective lens holder attached to the end of the upper and lower moving shafts and installed in the fixing member. Compensation field for tracking and focusing adjustment coils of optical pickup actuators Is achieved by providing a value.
이하, 첨부도면에 의거하여 본 발명의 구성을 상세히 설명하도록 한다.Hereinafter, the structure of the present invention will be described in detail with reference to the accompanying drawings.
제2도에 내지 제5도에 도시된 바와같이, 본 발명의 구성은 외주면에 포커싱 조정코일(111) 및 트랙킹 조정코일(112)이 부착 설치된 대물렌즈홀더(110)를 갖는 광픽업 액츄에이터에 있어서, 상기 대물렌즈 홀더(110)가 상부측에 고정 설치되는 고정부재(100)와, 상기 고정부재(100)가 상부면에 형성된 설치홈(91)내에 안치되고, 복수개의 지지대(80)를 저면에서 받쳐주는 받침판(90)과, 상기 받침판(90)에서 상부로 돌출된 지지대(80)상에 고정 설치되어 내부에 변환기어부(51)가 장착된 본체(50)와, 상기 본체(50)의 변환기어부(51) 측면부분에 돌설된 회전축(40)에 결합된 회전레버(30)의 회전에 의해 변환기어부(51)의 저면에서 상·하로 이동하는 상·하이동축(60)과, 상기 상·하이동축(60)의 끝단부에 부착되어 상기 고정부재(100)에 설치된 대물렌즈홀더(110)의 포커싱 조정코일(111) 및 트랙킹 조정코일(112)를 눌러주는 누름부재(70)로 구성된 것이다.As shown in FIGS. 2 to 5, the configuration of the present invention is directed to an optical pickup actuator having an objective lens holder 110 provided with a focusing adjustment coil 111 and a tracking adjustment coil 112 attached to an outer circumferential surface thereof. In addition, the objective lens holder 110 is fixed to the fixing member 100 is installed on the upper side, the fixing member 100 is placed in the installation groove 91 formed on the upper surface, the plurality of support base 80 The main body 50, which is fixedly installed on the support plate 90 and the support plate 80 protruding upward from the support plate 90, the converter gear 51 is mounted therein, and the body 50 of The upper and lower movable shafts 60 moving up and down from the bottom of the transducer gear 51 by the rotation of the rotary lever 30 coupled to the rotary shaft 40 protruding from the side of the transducer gear 51 and the upper and lower shafts. Focusing adjustment nose of the objective lens holder 110 is attached to the end of the high moving shaft 60 and installed in the fixing member 100 It is composed of pressing members 70 to press 111 and the tracking adjusting coil 112.
그리고, 상기 고정부재(100)는 상기 누름부재(70)가 하부로 진입하도록 형성된 진입홈(102)과, 상기 진입홈(102)의 바닥면에서 상부로 일정높이 돌설되어지는 코일 설치대(104)와, 상기 코일 설치대(104)의 전방으로 다수개 돌설되어 외주면에 포커싱 조정코일(111) 및 트랙킹 조정코일(112)이 설치된 대물렌즈홀더(110)의 사각홈(113)에 끼워져 대물렌즈홀더(110)를 고정시키는 고정돌기(105)로 구성된 것이다.In addition, the fixing member 100 is the entrance groove 102 formed so that the pressing member 70 enters the lower portion, and the coil mounting table 104 which is protruded from the bottom surface of the entry groove 102 to a predetermined height. And, the plurality of protrusions in front of the coil mounting table 104 is fitted into the square groove 113 of the objective lens holder 110, the focusing adjustment coil 111 and the tracking adjustment coil 112 is installed on the outer peripheral surface of the objective lens holder ( It is composed of a fixing protrusion 105 for fixing 110.
또한, 상기 누름부재(70)의 저면에는 일정깊이 함몰된 요홈(71)이 형성되고, 요홈(71)의 바닥면은 평탄도가 정밀한 압압면(72)이 형성된다.In addition, the bottom surface of the pressing member 70 is formed with a recessed recess recessed in a predetermined depth, the bottom surface of the recess 71 is formed with a pressing surface 72 with precise flatness.
한편, 상기 고정부재(100)는 진입홈(102)의 좌·후 양측면에 다수개 형성된 끼움공(103)을 통해 기워진 고정나사(101)에 의해 받침판(90)의 나사공(92)에 체결 고정되어진다.On the other hand, the fixing member 100 is in the screw hole 92 of the support plate 90 by the fixing screw 101 leaned through the fitting hole 103 formed in a plurality of left and rear sides of the entry groove 102 Fastening is fixed.
이하, 첨부도면에 의거하여 본 발명의 작용 효과를 상세히 설명하도록 한다.Hereinafter, on the basis of the accompanying drawings to explain the effect of the present invention in detail.
먼저, 대물렌즈홀더(110) 주위에 포커싱 조정코일(111) 및 트랙킹 조정코일(112)이 조립된 상태에서 포커싱 조정코일(111)과 트랙킹 조정코일(112)의 수직도 및 평탄도를 보정하고자 한다면, 대물렌즈홀더(110)의 사각홈(113)을 고정부재(100)인 코일 설치대(104)의 고정돌기(105)에 끼워주므로써 대물렌즈홀더(110)를 코일 설치대(104)의 벽면에 고정시키도록 한다.First, to correct the verticality and flatness of the focusing adjustment coil 111 and the tracking adjustment coil 112 in a state where the focusing adjustment coil 111 and the tracking adjustment coil 112 are assembled around the objective lens holder 110. If so, by inserting the square groove 113 of the objective lens holder 110 to the fixing projection 105 of the coil mounting 104 of the fixing member 100, the objective lens holder 110 to the wall surface of the coil mounting 104 Secure it.
이러한 상태에서 회전레버(30)를 손으로 잡고서 위에서 아랫방향으로 눌러서, 회전축(40)을 회전시키게 되면, 회전축(40)의 회전력이 변환기어부(51)를 통해서 상·하이동축(60)을 하부로 이동시키게 되고 상·하이동축(60)의 끝단부에 설치된 누름부재(70)가 서서히 하측 방향으로 이동하게 된다.In such a state, when the rotary lever 30 is rotated by holding the rotary lever 30 by hand from above and rotating the rotary shaft 40, the rotary force of the rotary shaft 40 lowers the upper and lower movable shafts 60 through the transducer gear 51. The pressing member 70 provided at the end of the up / down moving shaft 60 is gradually moved downward.
그리고, 누름부재(70)의 하측이동에 의해 누름부재(70)의 요홈(71)으로 대물렌즈홀더(110)가 끼워지게 되고, 요홈(71)의 압압면(72)이 트랙킹 조정코일(112)과 포커싱 조정코일(112) 및 포커싱 조정코일(111)이 가지고 있는 굴곡에 의한 오차 한계를 정확하게 압압시켜 보정하게 된다.Then, the objective lens holder 110 is inserted into the groove 71 of the pressing member 70 by the lower movement of the pressing member 70, and the pressing surface 72 of the groove 71 is the tracking adjustment coil 112. ) And the error limit due to the bending of the focusing adjustment coil 112 and the focusing adjustment coil 111 are accurately pressed and corrected.
한편, 보정이 이루어진후 눌려져 있는 회전 레버(30)를 원상태로 젖히게 되면, 상기한 반대의 과정을 거쳐서 누름부재(70)가 대물렌즈홀더(110)로부터 원상태로 복귀되어진다.On the other hand, if the rotation lever 30 is pressed to the original state after the correction is made, the pressing member 70 is returned to the original state from the objective lens holder 110 through the reverse process described above.
그리고, 대물렌즈홀더(110)의 반대측 방향에 설치된 포커싱 조정코일(111) 및 트랙킹 조정코일(112)의 평탄도 및 직진도는 대물렌즈홀더(110)를 고정돌기(105)에서 이탈시킨후 대물렌즈홀더(110)를 180도 회전시켜서 보정을 요하는 반대측 트랙킹 조정코일(112)이 상부로 향하도록 하여서 대물렌즈홀더(110)의 사각홈(113)을 고정돌기(105)에 끼운후 대물렌즈홀더(110)를 회전레버(30)를 다시 눌러서 누름부재(70)의 압압면(72)으로 보정시키면 된다.Further, the flatness and straightness of the focusing adjustment coil 111 and the tracking adjustment coil 112 provided in the opposite direction of the objective lens holder 110 are separated after the objective lens holder 110 is removed from the fixing protrusion 105. Rotate the lens holder 110 by 180 degrees so that the opposite tracking adjustment coil 112 requiring correction is directed upward so that the square groove 113 of the objective lens holder 110 is inserted into the fixing protrusion 105, and then the objective lens is rotated. The holder 110 may be corrected with the pressing surface 72 of the pressing member 70 by pressing the rotary lever 30 again.
이와 같이 계속해서 다른 대물렌즈 홀더(110)에 설치된 트랙킹 조정코일(112) 및 포커싱 조정코일(111)의 직진도 및 평탄도를 보정할 수 있는 것이다.In this way, the straightness and flatness of the tracking adjustment coil 112 and the focusing adjustment coil 111 provided in the other objective lens holder 110 can be corrected.
따라서, 종래의 광픽업 액츄에이터는 포커싱 조정코일 및 트랙킹 조정코일의 평탄도 및 직진도를 보정하지 못하므로써 부공진이 발생되는 것과는 다르게 본 발명에 따른 보정장치를 사용하게 되면 대물렌즈홀더를 고정부재인 코일설치대의 고정돌기에 끼워서 고정시킨후 회전레버를 손으로 회전시켜 누름부재의 압압면으로 트랙킹 조정코일 및 포커싱 조정코일의 측면부에 긴밀히 눌러주므로써 대물렌즈홀더의 무게 중심을 정확히 잡아주어서 대물렌즈홀더의 부공진을 방지하여서 광픽업 액츄에이터의 성능을 향상시키도록 해주는 매우 유용한 발명인 것이다.Therefore, in the conventional optical pickup actuator, the object lens holder is fixed to the objective lens holder when the compensation device according to the present invention is used, unlike the occurrence of negative resonance, by not correcting the flatness and straightness of the focusing adjustment coil and the tracking adjustment coil. After inserting and fixing on the fixing projection of the coil mount, rotate the rotary lever by hand and press the tracking adjustment coil and focusing adjustment coil to the side of the pressing member closely to hold the center of gravity of the objective lens holder. It is a very useful invention to improve the performance of the optical pickup actuator by preventing the secondary resonance of the.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950045187A KR0158849B1 (en) | 1995-11-30 | 1995-11-30 | A tracking and focusing coil adjustment device of optical pick-up actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950045187A KR0158849B1 (en) | 1995-11-30 | 1995-11-30 | A tracking and focusing coil adjustment device of optical pick-up actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970029403A KR970029403A (en) | 1997-06-26 |
| KR0158849B1 true KR0158849B1 (en) | 1999-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950045187A KR0158849B1 (en) | 1995-11-30 | 1995-11-30 | A tracking and focusing coil adjustment device of optical pick-up actuator |
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| Country | Link |
|---|---|
| KR (1) | KR0158849B1 (en) |
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1995
- 1995-11-30 KR KR1019950045187A patent/KR0158849B1/en not_active IP Right Cessation
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| KR970029403A (en) | 1997-06-26 |
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