KR960015208B1 - Optical disk & opital disk producing method - Google Patents
Optical disk & opital disk producing method Download PDFInfo
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- KR960015208B1 KR960015208B1 KR1019930028578A KR930028578A KR960015208B1 KR 960015208 B1 KR960015208 B1 KR 960015208B1 KR 1019930028578 A KR1019930028578 A KR 1019930028578A KR 930028578 A KR930028578 A KR 930028578A KR 960015208 B1 KR960015208 B1 KR 960015208B1
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- adhesive
- optical disk
- optical
- disk
- disk plate
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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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
제1도는 종래의 디스크를 나타낸 단면도.1 is a cross-sectional view showing a conventional disk.
제2도는 종래 디스크의 제조과정을 나타낸 공정도.2 is a process chart showing the manufacturing process of the conventional disk.
제3a, b, c도는 본 발명에 따라 제조된 광디스크를 나타낸 종단면도.3a, b, c are longitudinal cross-sectional views showing optical disks made in accordance with the invention;
제4도는 본 발명의 광디스크를 제조과정을 나타낸 공정도.4 is a process chart showing the manufacturing process of the optical disk of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 광디스크 12 : 제1광디스크판10 optical disc 12 first optical disc plate
14 : 접착제 16 : 제1광디스크판14 adhesive 16 first optical disk plate
20 : 실크스크린 30 : 프레스20 silk screen 30 press
본 발명은 광디스크 및 그 제조방법에 관한 것으로서, 보다 상세하게는 기록정보의 트래킹(Tracking)신호 검출특성과 정보검출신호 대 잡음비 특성을 향상시키는 광디스크 및 그 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc and a method of manufacturing the same, and more particularly, to an optical disc and a method of manufacturing the same, which improve a tracking signal detection characteristic and information detection signal-to-noise ratio characteristic of recording information.
일반적으로 영상정보나 데이터를 기록하는 기록매체인 종래의 디스크는 제1도에 도시된 바와 같은 구조로 형성되어 있다.In general, a conventional disk, which is a recording medium for recording image information or data, has a structure as shown in FIG.
제1도에 도시된 종래의 디스크는 제1디스크판(1) 위 전체에 접착제(3)를 도포하거나 또는 양면 테이프를 부착하고 그 위에 제2디스크판(4)을 적층한 구조로 되어 있는데, 이는 제2도에 도시된 바와 같은 공정에 의해서 형성된다.The conventional disk shown in FIG. 1 has a structure in which an adhesive 3 is applied to the entire first disk plate 1 or a double-sided tape is attached and the second disk plate 4 is stacked thereon. This is formed by a process as shown in FIG.
즉, 제2a도에 도시된 바와 같이 제1디스크판(1)을 용융된 접착제(3)가 붙어 있는 제1롤러(2A)와 제2롤러(2B)에 삽입하면 b도와 같이 접착제(3)가 도포되고, 제1디스크판(1)을 c도에 도시된 바와 같이, 제1프레스(30) 위에 올려 놓은 다음 접착하고자 하는 제2디스크판(4)를 중심홀에 맞추어 올려 놓은 상태에서 제2프레스(32)로 압착하여 디스크를 제조한다.That is, as shown in FIG. 2A, when the first disc plate 1 is inserted into the first roller 2A and the second roller 2B on which the molten adhesive 3 is attached, the adhesive 3 is formed as shown in b. Is applied, the first disc plate 1 is placed on the first press 30 as shown in FIG. C, and then the second disc plate 4 to be bonded is placed in the center hole. The disk is manufactured by pressing with two presses 32.
상기와 같은 종래의 디스크는 제1, 2디스크판을 접착하기 위한 수단으로 제1디스크판(1) 전면에 접착제(3)나 양면 테이프를 적층하므로 주사된 광이 흡수되거나 복굴절되어 신호검출특성이 저하되는 문제점이 있었다.In the conventional disk as described above, since the adhesive 3 or the double-sided tape is laminated on the front surface of the first disk plate 1 as a means for adhering the first and second disk plates, the scanned light is absorbed or birefringed and thus the signal detection characteristics are improved. There was a problem of deterioration.
따라서, 본 발명은 상기와 같은 제반 결점을 해소하기 위해 창출한 것으로서, 본 발명의 목적은 기록정보 트래킹신호검출특성과 정보검출신호 대 잡음비를 향상하는 광디스크 및 그 제조방법을 제공하는데 있다.Accordingly, an object of the present invention is to provide an optical disc and a method of manufacturing the same which improve recording information tracking signal detection characteristics and information detection signal-to-noise ratio.
상기의 목적을 달성하기 위해 본 발명에 따른 광디스크는 이미 정보가 수록된 2개의 광디스크판중 어느 하나인 제1광디스크판 기록면의 외주면과 내외주면에 접착제를 도포하고 그 위에 다른 제2디스크판을 압착하여 형성된 것을 특징으로 한다.In order to achieve the above object, the optical disk according to the present invention is coated with an adhesive on the outer circumferential surface and the inner and outer circumferential surface of the recording surface of the first optical disk plate, which is one of the two optical disk plates, which already contain information, and then presses another second disk plate thereon. Characterized in that formed.
한편, 본 발명에 의한 광디스크 제조방법은, 제1디스크판의 기록면 내주면과 외주면 소정의 패턴을 갖는 실크스크린을 이용하여 접착제를 도포하는 접착제 도포과정과, 상기 접착제 도포과정에서 접착제가 도포된 제1디스크판 위에 제2디스크판을 접착시키는 디스크접착과정과, 상기 디스크 접착과정에서 제1, 2디스크에 자외선을 주사시켜 접착제를 경화시키는 접착제 경화과정으로 이루어진 것을 특징으로 한다.On the other hand, the optical disk manufacturing method according to the present invention, the adhesive coating step of applying an adhesive using a silk screen having a predetermined pattern of the inner surface and the outer surface of the recording surface of the first disk plate, and the first adhesive is applied in the adhesive coating process The disk bonding process for adhering the second disk plate on the disk plate, characterized in that consisting of an adhesive curing process for curing the adhesive by injecting ultraviolet rays to the first and second disks in the disk bonding process.
이하, 예시된 도면을 참조하여 본 발명을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the illustrated drawings.
제3도는 본 발명에 따라 제조된 광디스크를 나타낸 종단면도이고, 제4도는 본 발명의 광디스크 제조과정을 나타낸 공정도이다.3 is a longitudinal sectional view showing an optical disk manufactured according to the present invention, and FIG. 4 is a process chart showing the optical disk manufacturing process of the present invention.
본 발명에 따른 광디스크의 제3a, b, c도에 도시된 바와 같이 다수개의 실시예를 가진다.As shown in Figs. 3a, b, and c of the optical disc according to the present invention, there are a plurality of embodiments.
제3a도에 도시된 광디스크는 제1실시예에 따라 제조된 것으로서, 이 광디스크(10)는 제1광디스크판(12)의 정보기록면 내주면과 외주면에 접착제(14)를 적층하고, 그 위에 제2광디스크판(16)을 압착시켜 된 것으로서, 여기서 상기 제1광디스크판(12)의 정보기록면과 제2광디스크판(16)의 기록면이 서로 대향되게 접착되어 있다.The optical disk shown in FIG. 3A is manufactured according to the first embodiment, and the optical disk 10 is laminated with an adhesive 14 on the inner and outer peripheral surfaces of the information recording surface of the first optical disk plate 12, and on top of it the second optical disk. The optical disk plate 16 is pressed, where the information recording surface of the first optical disk plate 12 and the recording surface of the second optical disk plate 16 are bonded to face each other.
한편, 제2실시예의 의한 광디스크(10)는 제3b도와 같이 제1광디스크판(12)의 정보기록면과 제2광디스크(16)의 정보무기록면의 내외주면을 접착제(14)로 부착하여 형성되어 있다. 그리고 제3실시예의 광디스크(10)는 제1광디스크판(12)의 정보무기록면과 제2광디스크판(16)의 정보기록면 내외주면을 접착제(14)로 부착하여 형성되어 있다.On the other hand, the optical disk 10 according to the second embodiment is formed by attaching the information recording surface of the first optical disk plate 12 and the inner and outer circumferential surfaces of the information-non-recording surface of the second optical disk 16 with adhesive 14 as shown in FIG. have. The optical disc 10 of the third embodiment is formed by attaching the information non-recording surface of the first optical disc plate 12 and the inner and outer peripheral surfaces of the information recording surface of the second optical disc plate 16 with adhesive 14.
상기와 같은 구조를 가진 본 발명의 광디스크 제조과정을 제4도에 도시된 공정도를 참조하여 상세히 기술하면 다음과 같다.The optical disk manufacturing process of the present invention having the above structure will be described in detail with reference to the process diagram shown in FIG.
정보가 이미 수록된 제1, 2광디스크판(12), (16)중 제1광디스크판(12) 또는 제2광디스크판(16) 위에 일정한 패턴이 형성된 실크스크린(20)을 안착시킨 상태에서 작업자가 적외선 접착제(14)가 발라져 있는 롤러(30)를 상기 실크스크린(20)이 밀착 이동한 후 실크스크린(20)을 광디스크판으로부터 분리하면 광디스크판의 표면에는 패턴모양에 따라 접착제(14)가 광디스크판의 내외주면에 도포되는데, 이때 접착제(14)의 막은 대략 10~100㎛정도가 가장 바람직하다.The operator puts the silk screen 20 in which a predetermined pattern is formed on the first optical disk plate 12 or the second optical disk plate 16 among the first, second optical disk boards 12 and 16 that already contain information. After the silk screen 20 is moved in close contact with the roller 30 on which the infrared adhesive 14 is applied, and the silk screen 20 is separated from the optical disk board, the surface of the optical disk board has an adhesive 14 according to a pattern shape. It is applied to the inner and outer circumferential surface of the plate, wherein the film of the adhesive 14 is most preferably about 10 ~ 100㎛.
상기와 같이 접착제(14)가 도포된 제1광디스크판(12) 위에 제2광디스크판(16)을 올려놓고 상기 프레스(30), (32)를 이용하여 압착한 후, 자외선에 노출시키면 접착제(14)가 경화되어 광디스크가 제조된다.As described above, the second optical disk plate 16 is placed on the first optical disk plate 12 to which the adhesive 14 is applied, and then pressed using the presses 30 and 32, and then exposed to ultraviolet light. 14) is cured to produce an optical disc.
상술한 바와 같이 제조된 본 발명의 광디스크는 이미 정보가 기록되어 있는 광디스크판의 무기록면에 접착제를 도포한 후, 다른 광디스크판을 적층하여 접합하므로써 주사되는 빛이 기록면에 기록되어 있는 데이터(홈)에 정확히 입사 및 반사되므로 신호특성이 저하되는 것을 방지하는 효과가 있다.In the optical disk of the present invention manufactured as described above, after the adhesive is applied to the inorganic green surface of the optical disk plate on which information is already recorded, the light scanned by stacking and bonding other optical disk plates is recorded on the recording surface (groove). Since it is incident and reflected exactly to the, it is effective to prevent the signal characteristics from deteriorating.
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KR1019930028578A KR960015208B1 (en) | 1993-12-20 | 1993-12-20 | Optical disk & opital disk producing method |
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KR1019930028578A KR960015208B1 (en) | 1993-12-20 | 1993-12-20 | Optical disk & opital disk producing method |
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KR950020502A KR950020502A (en) | 1995-07-24 |
KR960015208B1 true KR960015208B1 (en) | 1996-11-01 |
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KR1019930028578A KR960015208B1 (en) | 1993-12-20 | 1993-12-20 | Optical disk & opital disk producing method |
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