JP2002260286A5 - - Google Patents
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- JP2002260286A5 JP2002260286A5 JP2001391125A JP2001391125A JP2002260286A5 JP 2002260286 A5 JP2002260286 A5 JP 2002260286A5 JP 2001391125 A JP2001391125 A JP 2001391125A JP 2001391125 A JP2001391125 A JP 2001391125A JP 2002260286 A5 JP2002260286 A5 JP 2002260286A5
- Authority
- JP
- Japan
- Prior art keywords
- reflectance
- fine pattern
- recording
- information
- pitch
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Claims (6)
グルーブ部とランド部とが交互に形成された微細パターンを有する支持体と、
前記微細パターン上に形成された相変化材料からなる記録層と、
前記記録層上に形成された厚さ０．０７〜０．１２ｍｍの透光層とから少なくともなり、
前記グルーブ部のピッチ又は前記ランド部のピッチをＰとするとき、前記微細パターンは、Ｐ＜λ／ＮＡの関係を有すると共に、前記グルーブ部又は前記ランド部のいずれか一方にのみ相変化記録によるマークが反射率５％以上となるように形成されていることを特徴とする情報記録担体。 An information record carrier recorded by a laser beam having a wavelength λ collected through an objective lens having a numerical aperture NA,
A support body and a groove portion and the land portion is closed a fine pattern formed alternately,
A recording layer made of a phase change material formed on the fine pattern;
And at least a light- transmitting layer having a thickness of 0.07 to 0.12 mm formed on the recording layer,
When the P-pitch of pitch or the land portion of the groove portion, the fine pattern, P <while have a relationship of lambda / NA, only the phase change recording on one of the groove portion or the land portion An information recording carrier, wherein the mark is formed so that the reflectance is 5% or more .
前記情報記録担体は、グルーブ部とランド部とが交互に形成され、前記グルーブ部のピッチ又は前記ランド部のピッチをＰとした微細パターンを有する支持体と、前記微細パターン上に形成された相変化材料からなり、５％以上の反射率を有する記録層と、前記記録層上に形成された厚さ０．０７〜０．１２ｍｍの透光層と、を少なくとも備え、
前記再生装置は、再生光の波長がλであり、ＲＩＮが１２５ｄＢ／Ｈｚ以下のノイズを有したレーザ発光素子と、開口数ＮＡの対物レンズと、光検出器を具備し、前記透光層を介して、情報記録担体に形成されているグルーブ部又はランド部のいずれか一方を選択して再生を行うピックアップと、を少なくとも有するとともに、Ｐ＜λ／ＮＡの関係を有していることを特徴とする情報記録担体の再生装置。An information record carrier reproducing apparatus equipped with an information record carrier,
The information recording carrier has a support having a fine pattern in which groove portions and land portions are alternately formed, and the pitch of the groove portions or the pitch of the land portions is P, and a phase formed on the fine pattern. A recording layer made of a change material and having a reflectance of 5% or more, and a light-transmitting layer having a thickness of 0.07 to 0.12 mm formed on the recording layer,
The reproducing apparatus includes a laser light emitting element having a reproduction light wavelength of λ and a noise of RIN of 125 dB / Hz or less, an objective lens having a numerical aperture NA, a photodetector, and the light transmitting layer. And at least a pickup that selects and reproduces either a groove portion or a land portion formed on the information record carrier, and has a relationship of P <λ / NA. An information record carrier reproducing apparatus .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001391125A JP2002260286A (en) | 2000-12-28 | 2001-12-25 | Information recording medium, its reproducing device and recording device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-400668 | 2000-12-28 | ||
| JP2000400668 | 2000-12-28 | ||
| JP2001391125A JP2002260286A (en) | 2000-12-28 | 2001-12-25 | Information recording medium, its reproducing device and recording device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006023128A Division JP2006120322A (en) | 2000-12-28 | 2006-01-31 | Information recording medium, reproducing apparatus thereof and recording apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002260286A JP2002260286A (en) | 2002-09-13 |
| JP2002260286A5 true JP2002260286A5 (en) | 2005-11-17 |
Family
ID=26607048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001391125A Pending JP2002260286A (en) | 2000-12-28 | 2001-12-25 | Information recording medium, its reproducing device and recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002260286A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4622291B2 (en) * | 2004-04-21 | 2011-02-02 | ソニー株式会社 | Read-only optical recording medium with unique identification information |
| JP2005310270A (en) * | 2004-04-21 | 2005-11-04 | Sony Corp | Read-only optical recording medium in which unique identification information is written |
| JP2006004541A (en) | 2004-06-18 | 2006-01-05 | Sony Corp | Information recording medium, mastering apparatus, identification information recording apparatus, identification information reproducing apparatus, mastering method,identification information recording method, and identification information reproducing method |
| JPWO2015162653A1 (en) * | 2014-04-21 | 2017-04-13 | 日立コンシューマエレクトロニクス株式会社 | Optical information apparatus and optical information processing method |
-
2001
- 2001-12-25 JP JP2001391125A patent/JP2002260286A/en active Pending
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