JPS60160038A - Information recording disk - Google Patents
Information recording diskInfo
- Publication number
- JPS60160038A JPS60160038A JP59016501A JP1650184A JPS60160038A JP S60160038 A JPS60160038 A JP S60160038A JP 59016501 A JP59016501 A JP 59016501A JP 1650184 A JP1650184 A JP 1650184A JP S60160038 A JPS60160038 A JP S60160038A
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- disk
- recording layer
- information
- recording disk
- 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
- 230000002093 peripheral effect Effects 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 239000004925 Acrylic resin Substances 0.000 abstract description 4
- 229920000178 Acrylic resin Polymers 0.000 abstract description 4
- 229910052714 tellurium Inorganic materials 0.000 abstract description 4
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 238000001771 vacuum deposition Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 239000005337 ground glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001370 Se alloy Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- VAUNMJNZQZLHJE-UHFFFAOYSA-N cobalt gadolinium Chemical compound [Co].[Gd] VAUNMJNZQZLHJE-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSUSQWYDLONJAX-UHFFFAOYSA-N iron terbium Chemical compound [Fe].[Tb] JSUSQWYDLONJAX-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
- G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、光方式の情報記録再生装置に用いることがで
きる情報記録ディスクに関するものでめる。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an information recording disk that can be used in an optical information recording and reproducing apparatus.
従来例の構成とその問題点
近年、オフィスや家庭で取り扱われる情報の量は飛躍的
に増大してきておυ、大量の情報を記録でき、長期にわ
たって安定して保存・再生のできる情報記録再生装置が
望まれている。このような情勢から、従来、王として用
いられてきた接触形磁気記録方式に替って、レーザ光を
使用して非接触で情報の記録再生を行なう光デイスク装
置や光磁気ディスク装置が実用化されつつあり、今後、
ますます多くの分野で使用されるものと思われる。Conventional configurations and their problems In recent years, the amount of information handled in offices and homes has increased dramatically.Information recording and reproducing devices that can record large amounts of information and stably store and reproduce over a long period of time are needed. is desired. In light of this situation, optical disk devices and magneto-optical disk devices that use laser light to record and reproduce information without contact have been put into practical use, replacing the conventional contact magnetic recording method. In the future,
It is expected that it will be used in more and more fields.
従って、これらの装置に使用される情報記録ディスクに
対しても、いかなる厳しい環境で、いかなる取り扱いを
受けても、長期にわたって情報を安定して保持し、外観
も損なわないことが必要とさ゛れている。Therefore, the information recording disks used in these devices must be able to retain information stably for long periods of time and maintain their appearance, no matter how harsh the environment or how they are handled. .
以下、図面を参照しながら従来の情報記録ディスクにつ
いて説明する。第１図は従来の情報記録ディスクの上面
図、第２図は同情報記録ディスクの断面図であり、１は
アクリル樹脂９．ポリカーボネート樹脂、ガラス等のレ
ーザ光に対して透過率の良い透明材質よりなる円板、２
は前記円板１にその外周部および内周部を残して真空蒸
着、スパッタ等で形成された情報記録層、３は２枚の前
記円板１を接合している接着剤、４は記録情報の内容等
を記録するためのラベルでおる０このような構成の情報
記録ディスクにおいては、情報記録層の部分は通常、同
心円状あるいは渦巻状のレーザ光のガイドトラックが有
り、多数の微小凹凸が存在するので、２枚の円板が比較
的強く接着されるのに対し、情報記録層のない内周部１
２および外周部１３は全く凹凸のない平面同志の接着と
なるので、情報記録層の部分よりも接着力が弱いという
欠点を有していた。Hereinafter, a conventional information recording disc will be explained with reference to the drawings. FIG. 1 is a top view of a conventional information recording disk, and FIG. 2 is a cross-sectional view of the same information recording disk, in which 1 is an acrylic resin 9. A disc made of a transparent material with good transmittance to laser light, such as polycarbonate resin or glass, 2
1 is an information recording layer formed on the disk 1 by vacuum deposition, sputtering, etc., leaving the outer and inner peripheries, 3 is an adhesive that joins the two disks 1, and 4 is recording information. In an information recording disk with such a structure, the information recording layer usually has a concentric or spiral guide track for the laser beam, and a large number of minute irregularities. Because of the presence of the information recording layer, the two discs are relatively strongly adhered, whereas the inner peripheral part 1 without the information recording layer
2 and the outer circumferential portion 13 are bonded to each other on a flat surface with no irregularities at all, so they have a drawback in that their adhesive force is weaker than that of the information recording layer portion.
特に外周部には、外力がかかったり、高湿の空気にさら
されたりして接着力が、さらに弱くなりやすく、また外
周部が−たびはがれると、そのはがれが内部へ容易に伝
播していく恐れが大きい。In particular, the adhesive strength tends to weaken further when the outer periphery is subjected to external force or exposed to high humidity air, and if the outer periphery peels off repeatedly, the peeling easily spreads to the inside. There's a lot of fear.
また、情報記録層の酸化による特性劣化という点からし
ても、外周部や内周部が平面同志の接着Ｓ、あると、水
分が外部から情報記録層に至るまでの経路が、直線的か
つ短く、特性の経年劣化が大きいという問題点も有して
いた。In addition, from the point of view of property deterioration due to oxidation of the information recording layer, if the outer and inner circumferential parts are bonded to each other on a flat surface, the path for moisture to reach the information recording layer from the outside is linear and straight. It also had the problem that it was short and its characteristics deteriorated significantly over time.
また、情報記録ディスクを手で持つ場合、情報記録層に
相当するディスク表面を持つと指紋等によって情報の記
録再生が行なわれなくなるので、おのずと両手で外周部
を持つか、あるいは片手で持つ場合は、内周部と外周部
とを挾む形で持つことになる。従ってこの外周部１２お
よび内周部１３が透明状態のま＼であると情報記録ディ
スクの内周部と外周部に指紋等のよごれが目立つことに
なる。内周部には通常、不透明のラベルが貼り付けられ
ているので、比較的目立ちにくいが、外周部は全く透明
であるので、特に目立ちやすい。このように、外観上の
問題点も有していた。In addition, when holding an information recording disk in your hands, if you hold the surface of the disk corresponding to the information recording layer, fingerprints will prevent information from being recorded or reproduced. , it is held in such a way that the inner circumferential part and the outer circumferential part are sandwiched between them. Therefore, if the outer peripheral part 12 and the inner peripheral part 13 remain transparent, dirt such as fingerprints will be noticeable on the inner peripheral part and the outer peripheral part of the information recording disk. Since an opaque label is usually attached to the inner circumference, it is relatively inconspicuous, but since the outer circumference is completely transparent, it is particularly noticeable. As described above, there were also problems in terms of appearance.
発明の目的
本発明の目的は、上記従来の問題点を軽減除去し経年変
化が少なく、かつ表面汚れの目立ちにくい光方式情報記
録再生装置用の情報記録ディスクを提供することである
。OBJECTS OF THE INVENTION It is an object of the present invention to provide an information recording disk for an optical information recording/reproducing device that reduces and eliminates the above-mentioned conventional problems, has less deterioration over time, and has less conspicuous surface stains.
発明の構成
本発明の情報記録ディスクは、情報記録層を有する面の
外周部と内局部の少なくとも外周部に多数の凹凸を設け
た複数の円板を、前記情報記録層を有する面同志を重ね
合わせて接合し、前記外周部を半透明スリガラス状とす
ることにより、外周部もしくは内周部における２枚の円
板の接着力を強化するとともに、外部からの水分の侵入
をより困難にして情報記録層の酸化による特性劣化を防
止し、さらには、取り扱いによる指紋等の汚れが目立ち
にくくなるものでおる０
実施例の説明
以下本発明の一実施例について、図面を参照しながら説
明する。Structure of the Invention The information recording disk of the present invention has a plurality of discs each having a plurality of concavities and convexities provided on at least the outer periphery of the outer periphery and the inner part of the surface having the information recording layer, and stacking the surfaces having the information recording layer on each other. By joining them together and making the outer periphery semitransparent ground glass, the adhesive force between the two disks at the outer periphery or the inner periphery is strengthened, and it is made more difficult for moisture to enter from the outside, thereby preventing information. This prevents characteristic deterioration of the recording layer due to oxidation, and furthermore, makes stains such as fingerprints caused by handling less noticeable.Description of an Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第３図は本発明の一実施例における情報記録ディスクの
上面図、第４図は同情報記録ディスクの断面図、第６図
は同情報記録ディスクの円板の情報記録層を有する面の
外周部と内周部に多数設けた凹凸の詳細図を示すもので
める。FIG. 3 is a top view of the information recording disk according to an embodiment of the present invention, FIG. 4 is a cross-sectional view of the information recording disk, and FIG. 6 is the outer periphery of the surface of the disk of the information recording disk having the information recording layer. This figure shows a detailed diagram of the many unevennesses provided on the inner circumference of the inner circumference.
第３図および第４図において、アクリル樹脂を射出成形
して作った円板１は、その中心部に情報記録再生装置の
回転テーブルに係合すべき中心孔１１を有しており、一
方の面の内周部１２と外周部１３とを除く中央部１４に
は、テルル酸化物等が真空蒸着された情報記録層２を有
しているＯそして前記内周部１２と前記外周部１３とに
は、第６図に示すような四角錐形状をした微小な凹凸１
６が多数、全周にわたって形成されている０前記円板１
を、２枚、前記情報記録層２同志を向かい合わせて接着
剤３で貼り合わせ、前記情報記録層２のない面の内周部
に記録内容等を書いておくためのラベル４を貼りつけて
、情報記録ディスクとしている。In FIGS. 3 and 4, a disk 1 made by injection molding of acrylic resin has a center hole 11 in its center to be engaged with a rotary table of an information recording/reproducing device, and one The central part 14 of the surface excluding the inner peripheral part 12 and the outer peripheral part 13 has an information recording layer 2 on which tellurium oxide or the like is vacuum-deposited. There are minute irregularities 1 in the shape of a square pyramid as shown in Figure 6.
A large number of 6 are formed over the entire circumference of the disk 1.
The two information recording layers 2 are pasted together with adhesive 3 facing each other, and a label 4 for writing recorded contents etc. is pasted on the inner periphery of the side where the information recording layer 2 is not provided. , an information recording disc.
以上のように構成された本実施例の情報記録ディスクに
よれば、従来、全く凹凸のない平面同志の接着というこ
とから強い接着力が得られなかった内周部や外周部が、
微小な凹凸を多数有する面の接着となり強力に接着でき
る。また、外部から水分の侵入する経路が、直線的でな
く複雑になるので、水分が侵入しにくくなっている。さ
らに、内周部や外周部は、内部に設けた多数の微小凹凸
のために、外から見ると半透明スリガラス状に見える。According to the information recording disk of this embodiment configured as described above, the inner and outer circumferential parts, where strong adhesion force could not be obtained conventionally due to the adhesion of flat surfaces with no unevenness,
It can adhere strongly to surfaces with many minute irregularities. In addition, the path for moisture to enter from the outside is not linear but complex, making it difficult for moisture to enter. Furthermore, the inner circumferential portion and the outer circumferential portion look like semi-transparent ground glass when viewed from the outside due to the large number of minute irregularities provided inside.
このこと社、特に指紋等の汚れの付着しやすい外周部の
汚れを目立ちにくくする効果がある。This has the effect of making dirt less noticeable, especially on the outer periphery where dirt such as fingerprints tends to adhere.
なお、上の実施例では、円板をアクリル樹脂を射出成形
で作るとしたが、これに限定されるものではなく、例え
ば、材質は、ポリカーボネート樹脂やガラスのように情
報を記録再生するレーザ光をある割合以上透過させるも
のであれば何でもよく、また製造方法も、例えば、スタ
ンパと基材との間に紫外線硬化樹脂を流し込んで、紫外
線で硬化させたのち、基材と硬化した樹脂とを一体化し
てスタンパから剥離するという方法（一般に２Ｐ法と呼
ばれている方法）でもよい。情報記録層の材質もテルル
酸化物に限定されるものではなく、例えば、テルル炭化
物、テルル・セレン合金、ガドリニウム・コバルト、テ
ルビウム・鉄、アルミニウム等であってもよい。また、
外周部や内周部に設けた微小凹凸の形状も四角錐に限定
されるものではなく、接着力強化、外部からの水分の侵
入防止、半透明スリガラス状の外観という種々の効果の
うち少なくとも一つの効果が得られる形状であれば、本
発明の趣旨をまぬがれるものではない。In the above embodiment, the disk is made of acrylic resin by injection molding, but the material is not limited to this. For example, the material may be polycarbonate resin, glass, or a laser beam for recording and reproducing information. Any material may be used as long as it transmits more than a certain percentage of the UV rays, and the manufacturing method is, for example, by pouring an ultraviolet curable resin between the stamper and the base material, curing it with UV rays, and then connecting the base material and the cured resin. A method of integrating and peeling off from the stamper (generally called 2P method) may also be used. The material of the information recording layer is not limited to tellurium oxide, and may be, for example, tellurium carbide, tellurium-selenium alloy, gadolinium-cobalt, terbium-iron, aluminum, or the like. Also,
The shape of the minute irregularities provided on the outer periphery and the inner periphery is not limited to the shape of a square pyramid. As long as the shape provides the following effects, the spirit of the present invention can be avoided.
発明の効果
以上の説明から明らかなように、本発明は情報記録ディ
スクを構成する円板の情報記録層を有する面の少なくと
も外周部に多数の微小凹凸を設けるようにしているので
、内周部や外周部における接着力を従来よりも大幅に強
化できるという優れた効果が得られる。また、接着層が
直線的でなく微小凹凸に沿った複雑な形になるので、外
部から水分の侵入する経路が複雑かつ長くなるので、情
報記録層の酸化等による記録再生特性の劣化防止の点に
おいても優れた効果が得られる。さらに、外観上からも
、手で持つことが多く指紋等の汚れの付着しやすい外周
部を半透明スリガラス状としているので、汚れが目立ち
にくいという効果が得られる。Effects of the Invention As is clear from the above explanation, the present invention provides a large number of minute irregularities at least on the outer circumferential portion of the surface of the disk that constitutes the information recording disk having the information recording layer, so that the inner circumferential portion An excellent effect can be obtained in that the adhesion force at the outer periphery can be significantly strengthened compared to the conventional method. In addition, since the adhesive layer is not linear but has a complicated shape along minute irregularities, the path for moisture to enter from the outside becomes complicated and long, making it difficult to prevent deterioration of recording and reproducing characteristics due to oxidation of the information recording layer. Excellent effects can also be obtained. Furthermore, in terms of appearance, the outer periphery, which is often held in the hand and is prone to dirt such as fingerprints, is made of translucent ground glass, making dirt less noticeable.
第１図は従来の情報記録ディスクの上面図、第２図は同
断鴫図、第３図は本発明の一実施例における情報記録デ
ィスクの上面図、第４図は同断面図、第５図は、同情報
記録ディスクの円板の外周部もしくは内周部の詳細斜視
図である。
１・・・・・・円板、２・・・・・・情報記録層、３・
・・・・・接着剤、４・・・・・・ラベル、１１・・・
・・・中心孔、１２・・・・・・内周部、１３・・・・
・・外周部、１４・・・・・・中央部、１８・・・・・
・微小凹凸。FIG. 1 is a top view of a conventional information recording disk, FIG. 2 is a cross-sectional view of the same, FIG. 3 is a top view of an information recording disk according to an embodiment of the present invention, FIG. 4 is a cross-sectional view of the same, and FIG. 1 is a detailed perspective view of the outer circumference or inner circumference of the disk of the same information recording disk. 1... Disk, 2... Information recording layer, 3.
...Adhesive, 4...Label, 11...
... Center hole, 12 ... Inner circumference, 13 ...
...Outer part, 14...Central part, 18...
・Minor irregularities.
Claims (1)
層を設け、前記情報記録層の設けられていない外周部と
内周部の少なくとも外周部に多数の微小凹凸を設けて半
透明化した複数の円板を、前記情報記録層を有する面同
志を重ね合わせて接合した情報記録ディスク。A transparent disk is provided with an information recording layer on its outer and inner circumferential parts, and a large number of minute irregularities are provided at least on the outer and inner circumferential parts where the information recording layer is not provided, thereby making it translucent. An information recording disk in which a plurality of disks having the information recording layer are joined together with their surfaces having the information recording layer stacked on top of each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59016501A JPS60160038A (en) | 1984-01-31 | 1984-01-31 | Information recording disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59016501A JPS60160038A (en) | 1984-01-31 | 1984-01-31 | Information recording disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60160038A true JPS60160038A (en) | 1985-08-21 |
Family
ID=11918020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59016501A Pending JPS60160038A (en) | 1984-01-31 | 1984-01-31 | Information recording disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60160038A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61142543A (en) * | 1984-12-14 | 1986-06-30 | Hitachi Ltd | Optical disk |
| JPH01267857A (en) * | 1988-04-20 | 1989-10-25 | Hitachi Maxell Ltd | Optical information recording medium and its production |
-
1984
- 1984-01-31 JP JP59016501A patent/JPS60160038A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61142543A (en) * | 1984-12-14 | 1986-06-30 | Hitachi Ltd | Optical disk |
| JPH0379771B2 (en) * | 1984-12-14 | 1991-12-19 | Hitachi Ltd | |
| JPH01267857A (en) * | 1988-04-20 | 1989-10-25 | Hitachi Maxell Ltd | Optical information recording medium and its production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR950007299B1 (en) | Optical disk productionn method for lavel layer inserting | |
| JPS60160038A (en) | Information recording disk | |
| JPH08297859A (en) | Optical disk | |
| JPS61217944A (en) | Information recording disk | |
| CN2426191Y (en) | Composite intelligent CD card | |
| JPH0344838A (en) | Optical disk | |
| JPH08263880A (en) | Reflection type optical disk | |
| JPS634270Y2 (en) | ||
| JP2789837B2 (en) | optical disk | |
| JPS61217945A (en) | Information recording disk | |
| JPS61168149A (en) | Information recording disk | |
| JP2816208B2 (en) | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING MEDIUM STORAGE CASE, AND THEIR MANUFACTURING METHODS | |
| JPS63152072A (en) | Information recording medium | |
| JPS6163941A (en) | Optical disk | |
| JPS61236044A (en) | Discoid recording carrier | |
| JPH04285738A (en) | Optical information recording medium | |
| JPS61145742A (en) | Optical disk | |
| JPS63175276A (en) | Information recording medium | |
| JPS61180946A (en) | Information recording disk | |
| JPWO2002089137A1 (en) | Optical information recording medium and optical information recording / reproducing device | |
| JPS62129955A (en) | Optical disk | |
| JPS62223833A (en) | Information recording carrier | |
| JPH0278039A (en) | Optical disk | |
| JPS61242355A (en) | Production of double-sided optical disk | |
| JPH03162725A (en) | Information recording medium case for housing information recording medium and production thereof |