JP2008186541A - 光情報記録媒体およびその製造方法 - Google Patents
光情報記録媒体およびその製造方法 Download PDFInfo
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- JP2008186541A JP2008186541A JP2007020490A JP2007020490A JP2008186541A JP 2008186541 A JP2008186541 A JP 2008186541A JP 2007020490 A JP2007020490 A JP 2007020490A JP 2007020490 A JP2007020490 A JP 2007020490A JP 2008186541 A JP2008186541 A JP 2008186541A
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- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 2
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Classifications
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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
- G11B7/266—Sputtering or spin-coating layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
【解決手段】 光情報記録媒体1は、中央部分に貫通孔CHを有する円形の基板2の光入射側となる一方の面上に反射層3及び記録層4が形成されており、この記録層4の上に光透過性のカバー層5が設けられている。この基板2は、貫通孔CHの開口部近傍領域の内径Dが貫通孔CHのその他の部分の内径dよりも大きくなっており、光入射側の面すなわち反射層3及び記録層4が形成されている面の貫通穴CHの周囲に段差部6が形成されている。
【選択図】 図1
Description
2、2‘ 基板
3 反射層
4 記録層
5 カバー層
6 段差部
6a 壁面
Claims (3)
- 中心部分に貫通孔を有する円形の基板と、前記基板の光入射側となる一方の面側に形成された反射層及び記録層と、前記反射層及び前記記録層が形成された面上に設けられた光透過性のカバー層と、を有する光情報記録媒体において、
前記基板は、前記貫通孔の光入射側の開口部近傍領域の内径が、前記貫通孔のその他の部分の内径よりも大きい
ことを特徴とする光情報記録媒体。 - 前記貫通孔の光入射側の開口部近傍領域は、前記基板の表面から0.3mmの深さまでの領域であることを特徴とする請求項1に記載の光情報記録媒体。
- 中心部分に貫通孔を有しかつ光入射側となる一方の面側に反射層及び記録層が形成された円形の基板を用意するステップと、
前記基板の貫通孔をセンターキャップで塞いで光入射面側の貫通孔近傍領域に光透過性の硬化性樹脂を供給するステップと、
前記基板を回転させてスピンコート法によって前記反射層及び前記記録層が形成された面上を前記硬化性樹脂で被覆するステップと、
前記硬化性樹脂を硬化させてカバー層を形成するステップと、を有する光情報記録媒体の製造方法において、
前記基板として、前記貫通孔の光入射側の開口部近傍領域の内径が、前記貫通孔のその他の部分の内径よりも大きくかつ前記センターキャップの直径より小さくされている基板を用いる
ことを特徴とする光情報記録媒体の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007020490A JP5030607B2 (ja) | 2007-01-31 | 2007-01-31 | 光情報記録媒体およびその製造方法 |
TW097103287A TWI480867B (zh) | 2007-01-31 | 2008-01-29 | Optical information recording medium and manufacturing method thereof |
CNA2008100042757A CN101236760A (zh) | 2007-01-31 | 2008-01-29 | 光信息记录媒体及其制造方法 |
US12/021,924 US20080298203A1 (en) | 2007-01-31 | 2008-01-29 | Optical information recording medium and method of fabricating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007020490A JP5030607B2 (ja) | 2007-01-31 | 2007-01-31 | 光情報記録媒体およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008186541A true JP2008186541A (ja) | 2008-08-14 |
JP5030607B2 JP5030607B2 (ja) | 2012-09-19 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007020490A Expired - Fee Related JP5030607B2 (ja) | 2007-01-31 | 2007-01-31 | 光情報記録媒体およびその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080298203A1 (ja) |
JP (1) | JP5030607B2 (ja) |
CN (1) | CN101236760A (ja) |
TW (1) | TWI480867B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6655881B2 (ja) * | 2015-03-31 | 2020-03-04 | 日本電産サンキョー株式会社 | 遮光層付きレンズの製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006035082A (ja) * | 2004-07-27 | 2006-02-09 | Tdk Corp | 塗膜形成方法および塗膜形成装置 |
JP2006059452A (ja) * | 2004-08-20 | 2006-03-02 | Victor Co Of Japan Ltd | 光ピックアップ装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003123331A (ja) * | 2001-10-04 | 2003-04-25 | Tdk Corp | 多層光記録媒体の製造方法および多層光記録媒体 |
JP2005063492A (ja) * | 2003-08-18 | 2005-03-10 | Tdk Corp | 光ディスクの製造方法および製造装置 |
KR100853427B1 (ko) * | 2004-06-18 | 2008-08-21 | 주식회사 엘지화학 | 광디스크 스핀코팅용 캡의 탈부착장치, 이를 포함하는광디스크 스핀코팅용 장치 및 이를 이용한 광디스크제조방법 |
-
2007
- 2007-01-31 JP JP2007020490A patent/JP5030607B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-29 US US12/021,924 patent/US20080298203A1/en not_active Abandoned
- 2008-01-29 TW TW097103287A patent/TWI480867B/zh not_active IP Right Cessation
- 2008-01-29 CN CNA2008100042757A patent/CN101236760A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006035082A (ja) * | 2004-07-27 | 2006-02-09 | Tdk Corp | 塗膜形成方法および塗膜形成装置 |
JP2006059452A (ja) * | 2004-08-20 | 2006-03-02 | Victor Co Of Japan Ltd | 光ピックアップ装置 |
Also Published As
Publication number | Publication date |
---|---|
US20080298203A1 (en) | 2008-12-04 |
JP5030607B2 (ja) | 2012-09-19 |
TWI480867B (zh) | 2015-04-11 |
CN101236760A (zh) | 2008-08-06 |
TW200842864A (en) | 2008-11-01 |
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