JPS58196636A - Recording and reproducing disk of digital signal - Google Patents
Recording and reproducing disk of digital signalInfo
- Publication number
- JPS58196636A JPS58196636A JP57078303A JP7830382A JPS58196636A JP S58196636 A JPS58196636 A JP S58196636A JP 57078303 A JP57078303 A JP 57078303A JP 7830382 A JP7830382 A JP 7830382A JP S58196636 A JPS58196636 A JP S58196636A
- Authority
- JP
- Japan
- Prior art keywords
- digital signal
- film
- disk
- substrate
- transparent
- 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
Links
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
- G11B7/241—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
- G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the 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
- G11B7/241—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
- G11B7/254—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 protective topcoat layers
- G11B7/2548—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 protective topcoat layers consisting essentially of inorganic materials
-
- 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
- G11B7/254—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 protective topcoat layers
- G11B2007/25408—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 protective topcoat layers consisting essentially of inorganic materials
- G11B2007/25411—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 protective topcoat layers consisting essentially of inorganic materials containing transition metal elements (Zn, Fe, Co, Ni, Pt)
-
- 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
- G11B7/254—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 protective topcoat layers
- G11B2007/25408—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 protective topcoat layers consisting essentially of inorganic materials
- G11B2007/25414—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 protective topcoat layers consisting essentially of inorganic materials containing Group 13 elements (B, Al, Ga)
-
- 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
- G11B7/254—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 protective topcoat layers
- G11B2007/25408—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 protective topcoat layers consisting essentially of inorganic materials
- G11B2007/25417—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 protective topcoat layers consisting essentially of inorganic materials containing Group 14 elements (C, Si, Ge, Sn)
-
- 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
- G11B7/2533—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 resins
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は記録再生円盤に関し、その目的は、ディスク表
面に硬化膜を設は表面を保護し、誤再生を防止すること
にある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording/reproducing disk, and its purpose is to provide a cured film on the surface of the disk to protect the surface and prevent erroneous playback.
一般にビデオディスク(VD)やコンパクトディスク(
CD )などのディジタル記録再生装置においては、光
学式方法や静電容量の溝付きおよび溝なし方式などがあ
り、光学式の■やCDなどの記録再生円盤(ディスク)
の条件としては、機械的な強度が大きく、耐熱性や耐湿
性などの経時変化が少なく優れていることの他に、ディ
スク表面がキズ付きにくいなどが必要である。Generally, video discs (VD) and compact discs (
There are optical methods, capacitive grooved and non-grooved methods for digital recording and reproducing devices such as CDs, and recording and reproducing disks (discs) such as optical methods and CDs.
The conditions for this include high mechanical strength, excellent heat resistance and moisture resistance with little change over time, and the disk surface being resistant to scratches.
光学式記録再生装置であるCDの概略図を第1図に示す
。1はプレーヤ本体で、2はディスク、3はディスクの
裏面にある光学式のビックアラ!装置を示す。FIG. 1 shows a schematic diagram of a CD, which is an optical recording and reproducing device. 1 is the player itself, 2 is the disc, and 3 is the optical big ara on the back of the disc! Show the device.
第2図に従来のディスクの構造図を示す。FIG. 2 shows a structural diagram of a conventional disk.
4は透明ディスク基盤、5は金属反射膜、6は信号のピ
ット、7は樹脂製裏面保護膜、8はレーデ光、9は表面
部(レーザ入射面)である。4 is a transparent disk substrate, 5 is a metal reflective film, 6 is a signal pit, 7 is a resin back protection film, 8 is a radar beam, and 9 is a surface portion (laser incident surface).
レーデ光より照射された光は、ディジタル化された信号
のビット6より再生され、D−A変換され音として再生
される。The light irradiated by the radar light is reproduced from bit 6 of the digitized signal, converted from D to A, and reproduced as sound.
ディスク基盤はアクリル(PMMA )やポリカー?ネ
ート(PC)などの樹脂で、インジェクション方式やホ
トポリマー法などで作られるため、樹脂製裏面保護膜7
や表面部9は樹脂の生地のままであるため軟らかく、キ
ズ付き易いという欠点がある。Is the disk base acrylic (PMMA) or polycarbonate? The resin back protective film 7 is made of resin such as Neato (PC) using an injection method or a photopolymer method.
Since the surface portion 9 is still made of resin material, it has the drawback of being soft and easily scratched.
本発明はこれらの欠点を補うものであり、ディノタル信
号金属反射膜面やディスク表面を硬化し、表面にキズが
付きにくく又、誤再生を防止するものである。図を用い
て説明する。The present invention compensates for these drawbacks by hardening the dinotal signal metal reflective film surface and the disk surface to make the surface less likely to be scratched and to prevent erroneous playback. This will be explained using figures.
第3図は本発明のディスクを示す。FIG. 3 shows a disc of the invention.
10は無機質による酸化物の金属反射面の保護膜、11
は同材質よりなるディスク表面(レーザ光入射面)の保
護膜を示す。材質としては、セレン(Ce ) 、シリ
コン(St ) 、チタy (Tl) +アルミニウム
(At )などの無機質の酸化物である酸化セレン(c
eo2) +酸化シリコン(S+02) 、酸化チタン
(T+02) 、酸化アルミニウム(At203)が適
し、これらは高硬度の透明である。また、厚さは数10
0X〜数μmが適し、その付着方法としては、ス/4’
ツタリングや電子ビーム蒸着法などの物理蒸着法(Ph
−ysical Vapor Deposition
)や化学蒸着法(Chemical Vapor De
position )がある0このようにして得られた
無機質の酸化物は、数μm以下の薄膜であっても、表面
硬度が高く(ビッカース硬度:数百kg/■2)樹脂の
数を倍である。10 is a protective film of an inorganic oxide metal reflective surface; 11
indicates a protective film on the disk surface (laser light incident surface) made of the same material. Materials include selenium oxide (c), which is an inorganic oxide such as selenium (Ce), silicon (St), titanium (Tl) + aluminum (At), etc.
eo2) + silicon oxide (S+02), titanium oxide (T+02), and aluminum oxide (At203) are suitable, and these are highly hard and transparent. Also, the thickness is several 10
0X~several μm is suitable, and the adhesion method is S/4'
Physical vapor deposition methods (Ph.
-ysical Vapor Deposition
) and chemical vapor deposition
The inorganic oxide obtained in this way has a high surface hardness (Vickers hardness: several hundred kg/■2) even if it is a thin film of several μm or less, and is twice the number of resins. .
従って、ディスク表面にキズが付きにくいため、誤再生
などの問題が生じないという効果がある。Therefore, since the disk surface is less likely to be scratched, problems such as erroneous playback do not occur.
また、ディノタル信号面とその反対側のレーザ光入射面
である表面とを同じ材質の無機質の酸化物を使用するこ
とにより、同時に酸化膜の形成ができるという特徴があ
り、しかもこれらの酸化物は透明であるという特徴があ
るためディスク表面には最適であるなど、工業上有益で
ある。In addition, by using the same inorganic oxide material for the dinotal signal surface and the surface on the opposite side, which is the laser beam incidence surface, an oxide film can be formed at the same time. It is industrially useful because it is transparent, making it ideal for disk surfaces.
第1図はCD装置の概略図、第2図は従来のディスクの
構造を示す図、第3図は本発明によるディスクの構造を
示す図である。
l・・・プレーヤ本体、2・・・ディスク、3・・・光
学式ビックアップ装置、4・・・透明ディスク基盤、5
・・・金属反射膜、6・・・信号のビット、7・・・樹
脂製裏面保護膜、8・・・レーザ光、9・・・表面部、
10 、11・・・保護膜。
!
第1図
第3図
0
11 4 !j
第2図FIG. 1 is a schematic diagram of a CD device, FIG. 2 is a diagram showing the structure of a conventional disc, and FIG. 3 is a diagram showing the structure of a disc according to the present invention. l... Player body, 2... Disc, 3... Optical backup device, 4... Transparent disc base, 5
...Metal reflective film, 6...Signal bit, 7...Resin back protective film, 8...Laser light, 9...Surface part,
10, 11...protective film. ! Figure 1 Figure 3 0 11 4! j Figure 2
Claims (2)
入射面との両方の表面に、同じ材質である無機物質の酸
化物を保護膜として設けることを特徴とするディジタル
信号記録、再生ディスク。(1) A digital signal recording and reproducing disk characterized in that an oxide of an inorganic substance, which is the same material, is provided as a protective film on both the digital signal surface and the opposite light incident surface of the disk.
2,At203などの透明で高硬度の薄膜であることを
特徴とする特許請求の範囲第(1)項記載のディジタル
信号記録、再生ディスク。(2) The oxide is CeO2,5in2. TiO
2. A digital signal recording and reproducing disk according to claim (1), which is made of a transparent and highly hard thin film such as At203.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57078303A JPS58196636A (en) | 1982-05-12 | 1982-05-12 | Recording and reproducing disk of digital signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57078303A JPS58196636A (en) | 1982-05-12 | 1982-05-12 | Recording and reproducing disk of digital signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58196636A true JPS58196636A (en) | 1983-11-16 |
Family
ID=13658153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57078303A Pending JPS58196636A (en) | 1982-05-12 | 1982-05-12 | Recording and reproducing disk of digital signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58196636A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63239633A (en) * | 1986-11-20 | 1988-10-05 | Canon Inc | Card-shaped optical recording medium |
EP0404951A1 (en) * | 1988-07-01 | 1991-01-02 | Sony Corporation | Optical recording medium and a method of producing the same |
JPH0410245A (en) * | 1990-04-26 | 1992-01-14 | Nec Home Electron Ltd | Optical disk and its production |
EP0729141A2 (en) * | 1995-02-24 | 1996-08-28 | Sony Corporation | Optical recording medium and method of producing the same |
US7300742B2 (en) * | 2002-08-23 | 2007-11-27 | General Electric Company | Data storage medium and method for the preparation thereof |
JP2008152839A (en) * | 2006-12-15 | 2008-07-03 | Toshiba Corp | Optical recording medium and manufacturing method of optical recording medium |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5690438A (en) * | 1979-12-19 | 1981-07-22 | Fujitsu Ltd | Optical recording medium |
JPS5755545A (en) * | 1980-09-22 | 1982-04-02 | Toshiba Corp | Optical recording member |
-
1982
- 1982-05-12 JP JP57078303A patent/JPS58196636A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5690438A (en) * | 1979-12-19 | 1981-07-22 | Fujitsu Ltd | Optical recording medium |
JPS5755545A (en) * | 1980-09-22 | 1982-04-02 | Toshiba Corp | Optical recording member |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63239633A (en) * | 1986-11-20 | 1988-10-05 | Canon Inc | Card-shaped optical recording medium |
EP0404951A1 (en) * | 1988-07-01 | 1991-01-02 | Sony Corporation | Optical recording medium and a method of producing the same |
JPH0410245A (en) * | 1990-04-26 | 1992-01-14 | Nec Home Electron Ltd | Optical disk and its production |
EP0729141A2 (en) * | 1995-02-24 | 1996-08-28 | Sony Corporation | Optical recording medium and method of producing the same |
EP0729141A3 (en) * | 1995-02-24 | 1996-11-27 | Sony Corp | Optical recording medium and method of producing the same |
US5846626A (en) * | 1995-02-24 | 1998-12-08 | Sony Corporation And Sony Disc Technology Inc. | Optical recording medium and method of producing same |
EP0992989A1 (en) * | 1995-02-24 | 2000-04-12 | Sony Corporation | Method for producing an optical recording medium |
US7300742B2 (en) * | 2002-08-23 | 2007-11-27 | General Electric Company | Data storage medium and method for the preparation thereof |
JP2008152839A (en) * | 2006-12-15 | 2008-07-03 | Toshiba Corp | Optical recording medium and manufacturing method of optical recording medium |
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