KR970060081A - Double-sided disc and its manufacturing method - Google Patents

Double-sided disc and its manufacturing method Download PDF

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Publication number
KR970060081A
KR970060081A KR1019960001377A KR19960001377A KR970060081A KR 970060081 A KR970060081 A KR 970060081A KR 1019960001377 A KR1019960001377 A KR 1019960001377A KR 19960001377 A KR19960001377 A KR 19960001377A KR 970060081 A KR970060081 A KR 970060081A
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KR
South Korea
Prior art keywords
double
reflective layer
manufacturing
sided
optical disk
Prior art date
Application number
KR1019960001377A
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Korean (ko)
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KR0175519B1 (en
Inventor
류수선
Original Assignee
장용균
주식회사 에스. 케이. 씨
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 장용균, 주식회사 에스. 케이. 씨 filed Critical 장용균
Priority to KR1019960001377A priority Critical patent/KR0175519B1/en
Publication of KR970060081A publication Critical patent/KR970060081A/en
Application granted granted Critical
Publication of KR0175519B1 publication Critical patent/KR0175519B1/en

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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
    • G11B7/24—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
    • G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24062—Reflective layers

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

본 발명은 양면 모두를 활용할 수 있는 디스크와 이렇게 성형되는 디스크의 제조공정을 단순화한 양면용 디스크 제조방법에 관한 것이다.The present invention relates to a disc capable of utilizing both sides and a method of manufacturing a double-side disc in which the manufacturing process of the disc is simplified.

본 발명은 단면의 수평을 중심으로 대칭되게 반사층을 형성시키고, 상하 반사층간의 거리는 수지로 채워져 소정의 디스크 두께를 맞추도록 한 것이다.In the present invention, a reflective layer is formed symmetrically with respect to a horizontal plane of a cross section, and a distance between upper and lower reflective layers is filled with a resin to match a predetermined disc thickness.

또한, 양면용 디스크를 제조하기 위한 스탬퍼(20)을 마스터 글라스(114), 니켈 화더(116; Nl Father)로 이어지는 공정에서 성형해 내고, 가동측 금형과 고정측 금형에 한 쌍의 스탬퍼를 동시에 장착 한 번의 사출성형으로 양면용 디스크를 제작하여 접착층이 없는 양면용 디스크를 제조하는 것이다.In addition, the stamper 20 for manufacturing the double-sided disk is molded in the process leading to the master glass 114 and the nickel holder 116 (Nl Father), and a pair of stamper is formed on the movable mold and the stationary mold simultaneously Mounting Two-sided discs are produced by one-time injection molding to manufacture double-sided discs without adhesive layers.

이와 같이 본 발명은 종래에 비해 공정 단계를 대폭 축소 생산성을 높이고 불량율을 낮춰 제조원가를 크게 낮출 수 있다.As described above, the present invention can significantly reduce the process steps, increase the productivity, lower the defect rate, and significantly reduce the manufacturing cost.

Description

양면용 디스크와 그 제조방법Double-sided disc and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 종래 단면 디스크의 제조 공정 도면.FIG. 2 is a manufacturing process diagram of a conventional single-sided disk.

제3도는 종래 양면용 디스크의 구조도면.3 is a structural drawing of a conventional double-sided disk;

제4도는 본 발명에 따른 양면을 디스크의 구조도면이다.FIG. 4 is a structural view of a double-sided disk according to the present invention. FIG.

Claims (3)

광 디스크의 두께를 상ㆍ하로 구분하여 중심 수평면을 기준으로 상부에 상부 반사층을 형성시키고, 하부에도 상부의 반사층과 대칭되게 하부반사층을 형성 양면에 반사층을 갖는 광 디스크에 있어서, 접착층을 형성하고 있지 않는 양면용 광 디스크.An optical disk having an optical disk having a reflective layer on both sides of the optical disk, wherein the reflective layer is formed on an upper portion of the optical disk, and the lower reflective layer is formed symmetrically with the reflective layer on the lower portion. Optical disc for double sided. 제1항에 있어서, 반사층과 외면사이에는 보호층이 형성되고, 상부 반사층과 하부 반사층 사이의 가로면은 수지층으로 채워지고 플레이어의 대물렌즈를 통과한 빔이 입사면 반대측의 반사층에 영향을 미치지 않는 거리로 제작된 양면용 광 디스크.The optical recording medium according to claim 1, wherein a protective layer is formed between the reflective layer and the outer surface, the lateral surface between the upper reflective layer and the lower reflective layer is filled with the resin layer, and the beam passing through the objective lens of the player affects the reflective layer A double-sided optical disc manufactured at a distance not shown. 양면용 광 디스크를 제조하기 위하여, 글라스 포토층을 입혀서 레이저 빔으로 요철부를 컷팅시키고, 요철부가 형성된 포토층을 현상액으로 세정하여 글라스 마스터를 만들고, 이 글라스 마스터의 요철부에 은(Ag)을 중착시키고, 은(Ag)이 중착된 글라스 마스터에 니켈(Ni)을 도금하여 니켈 화더(Ni Father)를 만들며, 상기 니켈 화더로부터 스템퍼(Stamper)를 만들어 디스크를 사출성형하는데 있어서, 가동측 금형과 고정측 금형에 한 쌍의 스템퍼를 동시에 장착하여 한번의 공정으로 양면용 광 디스크를 제조하는 방법.In order to manufacture a double-sided optical disk, a glassphotosensitive layer is coated with a laser beam to cut the concavo-convex portion, and the photo layer having the concavo-convex portion is cleaned with a developer to prepare a glass master. Ag (Ag) (Ni) is formed on the glass master to which Ag is adhered to form a nickel father, and a stamper is made from the nickel fender to injection-mold the disk, A method for manufacturing a double-sided optical disk in a single process by simultaneously mounting a pair of stamper on a fixed side mold. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960001377A 1996-01-23 1996-01-23 Both-sided disk and its producing method KR0175519B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960001377A KR0175519B1 (en) 1996-01-23 1996-01-23 Both-sided disk and its producing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960001377A KR0175519B1 (en) 1996-01-23 1996-01-23 Both-sided disk and its producing method

Publications (2)

Publication Number Publication Date
KR970060081A true KR970060081A (en) 1997-08-12
KR0175519B1 KR0175519B1 (en) 1999-04-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100455381B1 (en) * 2002-02-28 2004-11-06 삼성전자주식회사 Disc for developing performance of an optical disc driver and manufacturing method thereof
KR20130055094A (en) * 2011-11-18 2013-05-28 주식회사 플렉스인포메이션 Single layer dvd

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