JPS60120097A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS60120097A JPS60120097A JP58228469A JP22846983A JPS60120097A JP S60120097 A JPS60120097 A JP S60120097A JP 58228469 A JP58228469 A JP 58228469A JP 22846983 A JP22846983 A JP 22846983A JP S60120097 A JPS60120097 A JP S60120097A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- laminate
- recording medium
- information recording
- protective layer
- 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
- G11B7/254—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
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は光学式情報記録媒体に関するＯ〔従来技術〕
光学式情報記録の一つの形態として、表面が一様な光反
射率を有する記録媒体を適宜の方法で表面加工して部分
的に光反射率を変化させる方式のものがある。この様な
光学式情報記録媒体として、光記録レーザーカ一−ドが
例示できる。[Detailed Description of the Invention] [Technical Field] The present invention relates to an optical information recording medium. [Prior Art] As one form of optical information recording, a recording medium whose surface has a uniform light reflectance is used as a suitable recording medium. There is a method in which the surface is processed to partially change the light reflectance. An example of such an optical information recording medium is an optical recording laser card.
第１図に従来の光記録レーザーカードの断面図を示す。FIG. 1 shows a sectional view of a conventional optical recording laser card.
図においてｌは基板であシ、２は記録層下層であ）、３
は記録層上層であシ、４は保護層である。記録層下層２
と記録層上層３とは表面反射率が異なル、従って記録層
上層３を貫いて記録層下層２へと至る穴（ビット穴）５
を形成すると、ビット穴５０部分は上方から光をあてた
場合に周囲と反射率が異なシ、これを利用して情報の記
録が行われる。保護層４はこの様な情報記録面が汚れた
シ傷付けられたシするのを防止するために設けられる。In the figure, l is the substrate, 2 is the lower layer of the recording layer), 3
4 is the upper layer of the recording layer, and 4 is the protective layer. Recording layer lower layer 2
and the upper recording layer 3 have different surface reflectances, therefore, the hole (bit hole) 5 that penetrates the upper recording layer 3 and reaches the lower recording layer 2.
When formed, the bit hole 50 portion has a different reflectance from the surrounding area when light is applied from above, and this is used to record information. The protective layer 4 is provided to prevent such information recording surface from becoming dirty or scratched.
ところが、従来の光記録レーデ−カードにおいては、保
護層４は一層のみであるため賊保穫層４の表面が汚れた
フ傷付けられたシすると情＠続出し時にノイズが入った
シ更には読出し不能となったシすることがしばしばてあ
シ、従ってカードの寿命も短かいという欠点があった。However, in the conventional optical recording radar card, the protective layer 4 is only one layer, so if the surface of the protective layer 4 becomes dirty or scratched, noise may be generated when reading data, or even when the data is read out. The disadvantage was that the card often became disabled, and therefore the lifespan of the card was short.
本発明は、以上の如き従来技術に鑑み、光学式情報記録
媒体の長期間使用を可能ならしめることを目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned prior art, it is an object of the present invention to enable long-term use of optical information recording media.
以上の如き目的は、保護層の上に更に剥離可能なラミネ
ート層を１層以上設けることによって達成される。The above objects are achieved by further providing one or more peelable laminate layers on the protective layer.
第２図は本発明の光学式情報記録媒体の実施例である光
記録レーザーカードの平面図であシ、第３図はその部分
拡大正面図である。図において、ｌは基板であル、２は
記録層下層であシ、３は記録層上層であシ、４は保護層
であシ、これらは上記従来例と同様の構成を有する。保
護層４の上には透明ラミネート層６，７及び８が互いに
剥離可能な様に接着されている。ラミネート層の材質は
たとえばポリエステル、ナイロン、アセテート又はポリ
エチレン等のフィルムであル、これらはたとえば１００
μｍ程度の厚さであシ、カルボキシメチルセルロース（
ＣＭＣ）等の接着剤で軽く依漸されている。FIG. 2 is a plan view of an optical recording laser card which is an embodiment of the optical information recording medium of the present invention, and FIG. 3 is a partially enlarged front view thereof. In the figure, 1 is a substrate, 2 is a lower recording layer, 3 is an upper recording layer, and 4 is a protective layer, which have the same structure as the above-mentioned conventional example. On the protective layer 4, transparent laminate layers 6, 7 and 8 are peelably adhered to each other. The material of the laminate layer is, for example, a film of polyester, nylon, acetate or polyethylene, which is made of, for example, 100%
A thickness of about μm, carboxymethyl cellulose (
It is lightly glued with an adhesive such as CMC).
本実施例においては、第４図に斜視図を示す如く、ラミ
ネート層の剥離操作の便宜上、各ラミネート層は対応す
る隅部に切除部分を有する。この切除部分の大きさは、
最上部の２ミネート屑８が最も大きく、次いで中間のラ
ミネート層７が大きく、最下部のラミネート層６は最も
小さい。更に、これらのラミネート層の切除部分に瞬接
する部分は、第３図に示される如く、剥離操作の便宜上
予め接着せずにおくか、又は弱い接着力にて接着してお
いてもよい。In this embodiment, as shown in a perspective view in FIG. 4, each laminate layer has a cutout portion at a corresponding corner for convenience of peeling operation of the laminate layer. The size of this removed part is
The top two laminate scraps 8 are the largest, then the middle laminate layer 7 is the largest, and the bottom laminate layer 6 is the smallest. Further, as shown in FIG. 3, the portions of these laminate layers that are in instant contact with the cut portions may be left unbonded in advance for convenience of peeling operation, or may be bonded with a weak adhesive force.
本実施例においては、また各ラミネートｌ−は切除部分
を含む対応する辺部に各層毎に異なる色に着色された部
分（カラースト２イノ）９＃９’＃９”を有する。In this embodiment, each laminate l- also has a colored portion (colorst 2 ino) 9#9'#9'' in a different color for each layer on the corresponding side including the cutout portion.
上記切除部分及び着色部分はもちろん有効記録部分以外
の部分に設けられる。Of course, the cutout portion and the colored portion are provided in a portion other than the valid recording portion.
以上の如き本実施例の光記録レーザーカードにおいては
、力２−ストライプ部分を見ることによシ現在表面に出
ているラミネート層がどの層であるかを容易に判別でき
、必要に応じて切除部分に１ｌｉＩ接するラミネート層
部分を手指でつかみ、最上部のラミネート層を剥離する
ことができる。以下、同様にして上方から順にラミネー
ト層を剥離できる。In the optical recording laser card of this embodiment as described above, by looking at the 2-stripe portion, it is possible to easily determine which laminate layer is currently exposed on the surface, and remove it as necessary. The uppermost laminate layer can be peeled off by grasping the portion of the laminate layer that is in contact with the portion with your fingers. Thereafter, the laminate layer can be peeled off in the same manner from above.
以上の実施例においてはラミネート層がｉｔはカード全
体を覆っている例を示したが、本発明においては、ラミ
ネート層は有効記録部分を覆っていさえすればよい。In the above embodiments, the laminate layer covers the entire card, but in the present invention, the laminate layer only needs to cover the effective recording area.
更に、以上の実施例においては各層の識別のためカラー
ストライプを用いたが、カラーストライプの代わシに、
各層に適宜の符号たとえば数字を付しておいてもよい。Furthermore, in the above embodiments, color stripes were used to identify each layer, but instead of color stripes,
Each layer may be given an appropriate code, such as a number.
また、本発明は上記実施例の如き比較的小型のカードに
限定されるものではなく、比較的大型のディスク等をも
含むものである。Furthermore, the present invention is not limited to relatively small cards as in the above embodiments, but also includes relatively large disks.
以上の如き本発明の光学式情報記録媒体によれば、表面
に汚れや傷等が付いた場合にはラミネート層を剥離する
ことによシ、容易にこれら汚れや傷等を除去できるので
、記録媒体を良好な状態にて長期間使用することができ
る０According to the optical information recording medium of the present invention as described above, if there is dirt or scratches on the surface, these dirts or scratches can be easily removed by peeling off the laminate layer. Media can be used for long periods of time in good condition0
第１図は従来の光記録レーザーカードの断面図であシ、
第２図は本発明による光記録レーザーカードの平面図で
あシ、第３図はその正面図であシ、第４図はその部分斜
視図である。
に基板、２：記録層下層、３：記録層上層、４：保護層
、５：ビット穴、６，７，８：ラミネート層、９ ＃
９’ｔ ｆ：カラーストライプ。Figure 1 is a cross-sectional view of a conventional optical recording laser card.
FIG. 2 is a plan view of the optical recording laser card according to the present invention, FIG. 3 is a front view thereof, and FIG. 4 is a partial perspective view thereof. 2: Lower recording layer, 3: Upper recording layer, 4: Protective layer, 5: Bit hole, 6, 7, 8: Laminate layer, 9 #
9't f: Color stripe.
Claims (5)
において、保護層の上に更に剥離可能なラミネート層を
１層以上設けたことを特徴とする、光学式情報記録媒体
。(1) An optical information recording medium having a protective layer on an optical information recording layer, characterized in that one or more peelable laminate layers are further provided on the protective layer.
る、第１項の記録媒体。(2) The recording medium according to item 1, wherein the optical information recording medium is an optical recording radar card.
媒体。(3) The recording medium according to item 1, which has two or more laminate layers.
、該切除部分の大きさは上層へいく曇１ど大きくなって
いる、第３項の記録媒体。(4) The recording medium according to item 3, wherein each simulating layer has a cut-out portion at a corresponding corner, and the size of the cut-out portion increases as the thickness increases toward the upper layer.
る着色部分を有する、第３項の記録媒体。(5) The recording medium according to item 3, wherein each two-metal layer has colored portions of different colors on corresponding sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58228469A JPS60120097A (en) | 1983-12-05 | 1983-12-05 | Optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58228469A JPS60120097A (en) | 1983-12-05 | 1983-12-05 | Optical information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60120097A true JPS60120097A (en) | 1985-06-27 |
Family
ID=16876962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58228469A Pending JPS60120097A (en) | 1983-12-05 | 1983-12-05 | Optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60120097A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62262239A (en) * | 1986-05-02 | 1987-11-14 | ドレクスラ−・テクノロジ−・コ−ポレ−シヨン | Data card |
| US5249176A (en) * | 1987-07-20 | 1993-09-28 | Canon Kabushiki Kaisha | Optical recording medium, process for preparing the same and its optical recording and reproducing system |
| GB2315906A (en) * | 1996-07-30 | 1998-02-11 | Chen Yao Kuo | Disc protection structure |
| EP0840308A1 (en) * | 1995-07-19 | 1998-05-06 | Sony Corporation | Recording medium, information reproducing device, information recording device, and information recording/reproducing device |
-
1983
- 1983-12-05 JP JP58228469A patent/JPS60120097A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62262239A (en) * | 1986-05-02 | 1987-11-14 | ドレクスラ−・テクノロジ−・コ−ポレ−シヨン | Data card |
| US5249176A (en) * | 1987-07-20 | 1993-09-28 | Canon Kabushiki Kaisha | Optical recording medium, process for preparing the same and its optical recording and reproducing system |
| EP0840308A1 (en) * | 1995-07-19 | 1998-05-06 | Sony Corporation | Recording medium, information reproducing device, information recording device, and information recording/reproducing device |
| EP0840308A4 (en) * | 1995-07-19 | 1999-07-14 | Sony Corp | Recording medium, information reproducing device, information recording device, and information recording/reproducing device |
| US6157610A (en) * | 1995-07-19 | 2000-12-05 | Sony Corporation | Recording medium, information reproducing apparatus, information recording device, and information recording and reproducing apparatus |
| US6483796B1 (en) | 1995-07-19 | 2002-11-19 | Sony Corporation | Recording medium, information reproducing apparatus, information recording apparatus, and information recording and reproducing apparatus |
| US6697317B2 (en) | 1995-07-19 | 2004-02-24 | Sony Corporation | Recording medium, information reproducing apparatus, information recording apparatus, and information recording and reproducing apparatus |
| GB2315906A (en) * | 1996-07-30 | 1998-02-11 | Chen Yao Kuo | Disc protection structure |
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