KR19990003365A - How to adjust parallelism between rail surface and turntable surface of optical pickup device - Google Patents
How to adjust parallelism between rail surface and turntable surface of optical pickup device Download PDFInfo
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- KR19990003365A KR19990003365A KR1019970027229A KR19970027229A KR19990003365A KR 19990003365 A KR19990003365 A KR 19990003365A KR 1019970027229 A KR1019970027229 A KR 1019970027229A KR 19970027229 A KR19970027229 A KR 19970027229A KR 19990003365 A KR19990003365 A KR 19990003365A
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- rail
- parallelism
- optical pickup
- turntable
- laser beam
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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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
- G11B17/10—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with horizontal transfer to the turntable from a stack arranged with a vertical axis
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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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B2007/25301—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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Abstract
본 발명은 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법에 관한 것으로, 특히 오토콜리메이터(13)를 통해 레이저 다이오우드로 부터 발사된 레이저빔이 일반 광디스크를 대용한 글래스디스크매스터의 소정 평면상에 집광된 뒤 반사되어 돌아오는 경도와, 두 개의 레일을 따라 평행하게 설치되어 있는 두 개의 글래스플레이트매스터에 발사된 레이저 빔의 경도를 파악함으로써, 세 개의 상을 일치하도록 레일의 각 끝에 장착된 네 개의 캠 높이를 조절하여 레일면과 턴 테이블면의 평행도를 일치시킬 수 있게 됨으로써, 턴 테이블 상에 장착되는 소정의 광디스크를 상기한 장치 및 방법대로 적용하였을 때 동일한 효과를 얻을 수 있는 장치 및 방법이 구현되는 것이며, 이러한 본 발명은 오토콜리메이터와 소정 광디스크 대용의 글래디스크매스터, 두 개의 글래스플레이트매스터, 네 개의 캠 그리고 상기 오토콜리메이터에 연결되어 상기 장치들을 통해 얻은 데이터를 사용자가 관찰할 수 있는 모니터를 구비한 후, 이 장치들을 조작하여 레일면과 턴 테이블면의 평행도를 조작함으로써, 광디스크를 장착했을 시에도, 동일한 기대효과를 얻을 수 있게 되며 , 삽입 장착되는 소정의 광디스크가 턴 테이블상에 정밀한 평행도를 유지하면서 장착되지 않거나, 광픽업이 작동하는 레일이 평행하게 설치되어 있지 않음으로써,광디스크의 신호 기록면을 광픽업이 올바로 읽지 못하는 문제점도 해결할 수 있게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adjusting the parallelism between the rail surface and the turntable surface of an optical pickup apparatus. In particular, the laser beam emitted from the laser diode through the auto collimator 13 has a predetermined plane shape of a glass disk master in place of a general optical disk. Four beams mounted at each end of the rail to match the three phases by determining the hardness of the laser beam emitted by the two glassplate masters installed parallel to the two rails and the hardness of the light reflected and reflected back. By adjusting the heights of the two cams so that the parallelism between the rail surface and the turn table surface can be matched, the device and method can be achieved by applying the optical disk mounted on the turn table according to the above-described apparatus and method. The present invention is implemented, and the present invention is a glass disk master instead of an auto collimator and a predetermined optical disk. And two glass plate masters, four cams and a monitor connected to the auto collimator to allow the user to observe the data obtained through the devices, and then manipulate the devices to adjust the parallelism between the rail and the turntable surface. By operating, the same expected effect can be obtained even when the optical disc is mounted, and a predetermined optical disc to be inserted is not mounted while maintaining precise parallelism on the turntable, or a rail on which the optical pickup operates is installed in parallel. By not doing so, the problem that the optical pickup cannot read the signal recording surface of the optical disc correctly can be solved.
Description
본 발명은 광픽업장치에 관한 것으로, 특히 DVD-ROM(Digital Video Disk - Read Only Memory)드라이브(Drive)와 같이 고밀도 광디스크의 배속이 올라감에 따라 광픽업(Pick-Up)의 레일(Rail)에 조립정도가 엄격해질 때, 오토콜리메이터(Autocollimator)를 사용하여 레일면과 턴 테이블(Turn Table)면의 평행도를 소정각도 이내로 조정할 수 있도록 된 광픽업장치의 레일면과 턴 테이블의 평행도 조정방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical pickup device, and more particularly, to a rail of a pick-up as a double speed of a high-density optical disk increases, such as a DVD-ROM drive. A method of adjusting the parallelism between the rail surface and the turntable of the optical pickup apparatus, in which the parallelism between the rail surface and the turntable surface can be adjusted within a predetermined angle by using an autocollimator when the assembly accuracy becomes strict. will be.
일반적으로, 광픽업장치에 있어서는 트레이상에 올려진 소정의 광디스크, 예컨대 CD 또는 DVD 가 가이드샤프트를 따라 이동하는 픽업장치상에 탑재된 대물렌즈상의 CD 용 또는 DVD용 렌즈를 통해 발사되는 레이저 빔을 수광하게 되고, 이어 반사되어 돌아오는 레이저 빔의 데이터를 광검출기가 해독하게 되고, 해독된 결과에 따라 후단의 자기회로부를 제어하여, 삽입된 광디스크가 CD 인지 DVD인지의 여부를 판단하게 되며, 이후 삽입된 소정 광디스크의 종류에 맞는 렌즈가 선택되어 계속적으로 디스크상의 트랙 피치(pitch)를 따라 데이터를 읽음으로써, CD 또는 DVD에 내장된 소정 데이타를 읽게 된다.In general, in an optical pickup apparatus, a predetermined optical disk mounted on a tray, for example, a laser beam emitted through a lens for CD or DVD on an objective lens mounted on a pickup device in which a CD or DVD moves along a guide shaft. The photodetector decodes the data of the laser beam that is received and then reflected back, and controls the magnetic circuit unit at the rear end according to the decoded result to determine whether the inserted optical disc is a CD or a DVD. A lens suitable for the type of the predetermined optical disc inserted is selected and continuously reads data along the track pitch on the disk, thereby reading predetermined data embedded in the CD or DVD.
그러나, DVD등과 같은 고밀도의 광디스크에서는 광픽업의 대물렌즈에서 출사한 빔이 디스크면에서 수직하게 입사 하여야 하므로, 조립 밀도가 더욱 엄격하게 되며, 더욱이 DVD-ROM과 같이 배속이 올라감에 따라 더욱 조립정도로 엄격하게 된다.However, in high-density optical discs such as DVDs, the beam emitted from the objective lens of the optical pickup has to be perpendicular to the disc surface, so the assembly density becomes more stringent, and as the speed increases, such as DVD-ROM, the assembly degree is increased. Become strict.
따라서 기존의 저 배속용 CD-ROM과 같이 조정하지 않고 광픽업을 픽업베이스상의 레일에 끼우는 형태의 조립만으로는 조립정도를 맞출수 없게 되는 문제점이 있었다.Therefore, there is a problem in that the assembly accuracy can not be matched by simply fitting the optical pickup to the rail on the pickup base without adjusting the conventional low speed CD-ROM.
본 발명은 상기와 같은 종래의 문제점을 해소하기 위한 것으로, 픽업베이스상에 광디스크 대용의 글래스디스크매스터와 레일에 부착되어 있는 두 개의 글래스플레이트매스터를 설치하고 최초 글래스디스크매스터상에 발사되어 돌아온 상 A와, 상기 두 개의 글래스플레이트매스터사에 발사되어 돌아오는 두 개의 상 B, C를 오토콜리메이터와 연결시킨 모니터를 통해 불특정인의 사용자가 확인한 뒤, 세 개의 상이 일치하도록 레일면의 각 끝에 부착되어 있는 네 개의 캠을 조작하여 그 높이를 조절함으로써, 레일면과 턴 테이블면의 평해도를 유지할 수 있도록 된 장치를 제공하는 데 그 목적이 있다.The present invention is to solve the above-mentioned conventional problems, the installation of the glass disk master for the optical disk and the two glass plate master attached to the rail on the pickup base, and is released on the first glass disk master phase A And, after confirming by the user of the unspecified through the monitor connected to the auto collimator and the two phases B and C fired back to the two glass plate masters, the three phases are attached to each end of the rail surface to match It is an object of the present invention to provide an apparatus capable of maintaining flatness of a rail surface and a turntable surface by manipulating four cams to adjust their heights.
상기와 같은 목적을 달성하기 위하여 본 발명 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법은, 오토콜리메이터(13)를 통해 레이저 다이오우드로 부터 발사된 레이저 빔이 일반 광디스크를 대용한 글래스디스크매스터의 소정 평면상에 집광된 뒤 반사되어 돌아오는 경도와, 두 개의 레일을 따라 평행하게 설치되어 있는 두 개의 글래스플레이트매스터에 발사된 레이저 빔의 경도를 파악함으로써, 세 개의 상을 일치하도록 레일의 각 끝에 장착된 네 개의 캠 높이를 조절하여 레일면과 턴 테이블면의 평행도를 일치시킬 수 있게 됨으로써, 턴 테이블상에 장착되는 소정의 광디스크를 상기한 장치 및 방법대로 적용하였을 때 동일한 효과를 얻을 수 있도록 한 것을 특징으로 한다.In order to achieve the above object, the method of adjusting the parallelism between the rail surface and the turntable surface of the optical pickup device according to the present invention includes a glass disk master in which a laser beam emitted from the laser diode through the auto collimator 13 replaces a general optical disk. The angles of the rails are matched by matching the three images by grasping the hardness of the laser beam fired on two glass plate masters installed in parallel along the two rails and the hardness of the light reflected and reflected on a predetermined plane of the beam. By adjusting the heights of the four cams mounted at the ends, the parallelity between the rail surface and the turntable surface can be matched, so that the same effect can be obtained when a predetermined optical disk mounted on the turntable is applied according to the above-described apparatus and method. It is characterized by one.
도 1은 본 고안의 일 실시예에 따른 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법을 위한 장치를 보여주는 사시도,1 is a perspective view showing an apparatus for adjusting the parallelism between the rail surface and the turntable surface of the optical pickup device according to an embodiment of the present invention,
도 2는 도 2의 (가)를 상세히 도시한 상세도,2 is a detailed view showing (a) of FIG. 2 in detail;
도 3은 본 고안에 따른 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법을 설명하기 위한 동작플로우챠트이다.3 is an operation flowchart for explaining a method of adjusting the parallelism between the rail surface and the turn table surface of the optical pickup device according to the present invention.
＊ 도면의 주요 부분에 대한 부호의 설명＊ Explanation of symbols on main parts of drawing
1 : 픽업 베이스, 2 : 광픽업, 3 : 스핀들 모터, 4 : 턴 테이블, 5 : 글래스디스크매스터, 6 : 제 1 글래스플레이트매스터, 7 : 제 2 글래스플레이트매스터, 8 : 레일, 9 : 제 1 캠, 10 : 제 2 캠, 11 : 제 3 캠, 12 : 제 4 캠, 13 : 오토콜리메이터, 14 : 모니터1 pickup base, 2 optical pickup, 3 spindle motor, 4 turntable, 5 glass disc master, 6 first glass plate master, 7 second glass plate master, 8 rail, 9 first Cam, 10: second cam, 11: third cam, 12: fourth cam, 13: auto collimator, 14: monitor
이하, 상술한 내용을 본 발명에 따른 실시예를 통해 상세히 설명하면 다음과 같다.Hereinafter, the above-described contents will be described in detail through an embodiment according to the present invention.
먼저, 본 발명에 따른 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법을 구현하기 위한 장치적인 구성을 살펴보면 , 도 1에 도시한 바와 같다.First, a device configuration for implementing the method for adjusting the parallelism between the rail surface and the turntable surface of the optical pickup apparatus according to the present invention will be described with reference to FIG. 1.
즉, 장치 전반을 차지하는 축이되는 픽업 베이스(1)와; 레일(8)상에 설치되어 이 레일(8)을 따라 수평이동하는 광픽업(2)과; 턴 테이블(4)위에 놓여진 도시되지 않은 디스크를 회전시키기 위한 구동력을 제공하는 스핀들모터(3)와; 상기 스핀들모터(3)와 그 축이 되는 도시되지 않은 샤프트의 회전에 따라 동일 방향으로 회전하는 턴 테이블(4)과; 상기 턴 테이블(4)상에 탑재되며, 일반적인 CD/DVD와 유사한 규격의 유리로 된 측정용 평면형 디스크인 글래스디스크매스터(Glass Plate Master)(6, 7)와; 상기 광픽업(2) 및 두 개의 글래스플레이트매스터(6, 7)를 지지하는 축이 되는 레일(8)과; 상기 두 개 레일(8)의 각 끝에 부착되어 레일 (8)의 높이를 조절할수 있도록 구비된 네 개의 캠(9, 10, 11, 12)와; 상기 글래스디스크매스터(5)와 글래스플레이트매스터(6, 7)의 중아 상부로 레이저 빔을 발사한 후, 반사되어 돌아오는 빔을 수광하는 오토콜리메이터(13)와; 상기 오토콜리메이터(13)를 통해 맺힌 상을 기기 운용자가 육안으로 확인할 수 있도록 구비되어 있는 모니터(14)를 포함하여 구성된다.That is, the pick-up base 1 which becomes the axis which occupies the whole apparatus; An optical pickup 2 mounted on the rail 8 and horizontally moving along the rail 8; A spindle motor 3 for providing a driving force for rotating an unshown disk placed on the turn table 4; A turntable (4) rotating in the same direction as the spindle motor (3) and its shaft (not shown) rotate; A glass plate master (6, 7) mounted on the turn table (4), which is a flat disk for measurement of glass of a standard similar to a general CD / DVD; A rail 8 serving as an axis for supporting the optical pickup 2 and the two glass plate masters 6 and 7; Four cams (9, 10, 11, 12) attached to each end of the two rails (8) and provided to adjust the height of the rail (8); An auto collimator (13) which emits a laser beam to the upper middle of the glass disc master (5) and the glass plate master (6, 7), and receives the reflected beam; It is configured to include a monitor 14 is provided so that the device operator can visually check the image formed through the auto collimator (13).
이하, 상기한 구성으로 된 장치를 이용한 광픽업장치의 레밀면과 턴 테이블면의 평행도 조정방법을 도 3을 참조하여 설명하면 다음과 같다.Hereinafter, a method of adjusting the parallelism between the remill surface and the turntable surface of the optical pickup apparatus using the apparatus having the above-described configuration will be described with reference to FIG. 3.
최초, 장치의 상부 우측에 기설치되어 있는 글래디스크메이터(5)의 상부로 오토콜리메이터(13)를 이용하여 레이저 빔을 발사하게 되면(S1), 발사된 레이저 빔은 이 글래스디스크매스터(5)상에 집광한 뒤 반사되어 다시 오토콜리메이터(13)를 통해 운용자가 육안으로 확인할 수 있도록 되어 있는 모니터(14)상의 소정 좌표점에 상 A를 맺게 된다(S2).First, when the laser beam is fired by using the auto collimator 13 to the upper portion of the glass disk meter 5 already installed on the upper right side of the apparatus (S1), the emitted laser beam is the glass disk master 5. After condensing on the image, the image is reflected to form a phase A at a predetermined coordinate point on the monitor 14 which the operator can visually check through the auto collimator 13 (S2).
이어, 상기 픽업베이스(1)의 사각형으로 된 중앙 홈에 수직방향으로 레일(8)을 따라 설치되어 있는 두 개의 글레스플레이트매스터(6, 7)의 상부로 다시 상기 오토콜리메이터(13)로 부터 레이저 빔을 발사한 후(S3), 반사되어 돌아오는 두개의 상 B, C를 마찬가지로, 운용자가 육안으로 확인할 수 있도록 된 모니터(14)상에 맺도록 한다(S4).Then, the laser from the auto collimator 13 back to the top of the two glass plate masters 6 and 7 installed along the rail 8 in the vertical direction in the rectangular center groove of the pickup base 1. After firing the beam (S3), the two images B and C, which are reflected back, are likewise placed on the monitor 14 which the operator can visually check (S4).
이후, 상기 상 A와 상 B, C를 비교하여 (S5). 세개의 상이 일치하지 않을 경우에는 상기 레일(8)의 각 끝에 설치되어 있는 네 개의 캠(9, 10, 11, 12)중에서 소저의 세 개를 조작함으로써, 최초의 상 A에 두개의 상 B, C를 일치시킬 수 있게 된다.(S6).Thereafter, the phase A and phases B and C were compared (S5). If the three phases do not coincide with each other, the three phases of the four phases of the four cams 9, 10, 11, and 12 provided at each end of the rail 8 are operated to operate the two phases B, It is possible to match C (S6).
이상에서 살펴본 바와 같이 본 발명 광픽업장치의 레일면과 턴 테이블면의 평행도 조정방법은, 오토콜리메이터와 소정 광디스크 대용의 글래스디스크매스터, 두 개의 글래스플레이트매스터, 네 개의 캠, 그리고 상기 오토콜리메이터에 연결되어 상기 장치들을 통해 얻은 데이터를 사용자가 관찰할 수 있는 모니터를 구비한 후, 이 장치들을 조작하여 레일면과 턴 테이블면의 평행도를 조작함으로써, 광디스크를 장착했을 시에도, 동일한 기대효과를 얻을 수 있게 되며, 삽입 장착되는 소정의 광디스크가 턴 테이블상에 정밀한 평행도를 유지하면서 장착되지 않거나, 광픽업이 작동하는 레일이 평행하게 설치되어 있지 않음으로써, 광디스크의 신호기록면을 광픽업이 올바로 읽지 못하는 문제점도As described above, the method of adjusting the parallelism between the rail surface and the turntable surface of the optical pickup device of the present invention includes an auto collimator, a glass disk master for a predetermined optical disk, two glass plate masters, four cams, and a connection to the auto collimator. And a monitor that allows the user to observe the data obtained through the devices, and then manipulate these devices to manipulate the parallelism of the rail and turntable surfaces, so that the same expected effect can be obtained even when the optical disc is mounted. Since the optical disk to be inserted and mounted is not mounted while maintaining precise parallelism on the turntable, or the rail on which the optical pickup works is not installed in parallel, the optical pickup cannot read the signal recording surface of the optical disk correctly. Degree
해결할 수 있게 된다.It can be solved.
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| KR1019970027229A KR100478645B1 (en) | 1997-06-25 | 1997-06-25 | How to adjust the parallelism between the rail surface and turntable surface of the optical pickup device |
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| KR1019970027229A KR100478645B1 (en) | 1997-06-25 | 1997-06-25 | How to adjust the parallelism between the rail surface and turntable surface of the optical pickup device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100524930B1 (en) * | 2002-09-24 | 2005-10-31 | 삼성전자주식회사 | Automatic tilt adjusting apparatus for optic disc drive and Automatic tilt adjusting method for that apparatus |
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| KR0155096B1 (en) * | 1995-10-30 | 1998-12-15 | 배순훈 | Concentricity and parallelism inspection device of a sled part of optical pick up base |
| KR970023027A (en) * | 1995-10-30 | 1997-05-30 | 배순훈 | Tilt measuring device of optical pickup base |
| KR0158830B1 (en) * | 1995-11-30 | 1999-01-15 | 배순훈 | An automatic tilt inspection device of optical pick-up actuator |
| KR0175124B1 (en) * | 1996-04-26 | 1999-04-15 | 배순훈 | A pick-up base test device of optical pick-up actuator |
| KR100220324B1 (en) * | 1997-02-05 | 1999-09-15 | 구자홍 | Optical axis adjusting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100524930B1 (en) * | 2002-09-24 | 2005-10-31 | 삼성전자주식회사 | Automatic tilt adjusting apparatus for optic disc drive and Automatic tilt adjusting method for that apparatus |
| US7180836B2 (en) | 2002-09-24 | 2007-02-20 | Samsung Electronics Co., Ltd. | Apparatus and method for automatically adjusting tilting of an optical disc drive |
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