JPS62298041A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPS62298041A JPS62298041A JP61140740A JP14074086A JPS62298041A JP S62298041 A JPS62298041 A JP S62298041A JP 61140740 A JP61140740 A JP 61140740A JP 14074086 A JP14074086 A JP 14074086A JP S62298041 A JPS62298041 A JP S62298041A
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- thickness
- substrate
- recording medium
- 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
- 230000003287 optical effect Effects 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 8
- 229920003002 synthetic resin Polymers 0.000 abstract description 7
- 239000000057 synthetic resin Substances 0.000 abstract description 7
- 238000000151 deposition Methods 0.000 abstract description 3
- 230000009993 protective function Effects 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 230000008021 deposition Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は、集光したレーザ光により記録層に情報を記録
、再生するものであり、厚膜上に記録層を有する光記録
媒体に関するものである。Detailed Description of the Invention 3. Detailed Description of the Invention Industrial Application Field The present invention records and reproduces information on a recording layer using a focused laser beam, and has a recording layer on a thick film. It relates to optical recording media.
従来の技術
従来、集光されたレーザ光により情報を記録する光記録
媒体としては、第３図に示すものを挙げることができる
。すなわち、片面に記録層１２を形成した２枚の合成樹
脂製の透明基板１）を互いに記録層が内側になるように
し、内外側スペーサ１３ａ、１３ｂを介して重ね合せて
形成されている。（例えば、特開昭５８−１７７３９６
号公報）発明が解決しようとする問題点
しかしながら、この種の光記録媒体は、２枚の基板から
構成されているため、光記録媒体の厚さが２．５■職以
上と厚くなり、しかも重量も重いためにドライブのモー
ターへの負荷も大きくなる。2. Description of the Related Art Conventionally, as an optical recording medium on which information is recorded using a focused laser beam, one shown in FIG. 3 can be mentioned. That is, it is formed by overlapping two synthetic resin transparent substrates 1) each having a recording layer 12 formed on one side with the recording layer facing inside, with the inner and outer spacers 13a and 13b interposed therebetween. (For example, JP-A-58-177396
Problems to be Solved by the Invention However, since this type of optical recording medium is composed of two substrates, the thickness of the optical recording medium is as thick as 2.5 cm or more. Because it is heavy, the load on the drive motor is also large.
また、基板の材料として合成樹脂を用いており、合成樹
脂の透水性が高（、記録層がこの基板上に形成されてい
るため、水が記録層を経て外界と中空部を出入し、記録
層の劣化を促進する。In addition, synthetic resin is used as the substrate material, and the synthetic resin has high water permeability (because the recording layer is formed on this substrate, water enters and exits the outside world and the hollow space through the recording layer, Accelerate layer deterioration.
本発明は、上記問題９点に鑑み、薄型軽量であり、かつ
記録材の充分な保護機能を有する光記録媒体を提供する
ことを目的としている。SUMMARY OF THE INVENTION In view of the above nine problems, it is an object of the present invention to provide an optical recording medium that is thin and lightweight and has a sufficient protection function for recording materials.
問題点を解決するための手段
上記問題点を解決する手段として、本発明の光記録媒体
は従来、基板上に形成されていた記録層を５０μｍ＝１
５０μｍのガラス厚膜上に形成し、この記録層と基板間
にスペーサを介することにより中空部を設けている。Means for Solving the Problems As a means for solving the above problems, the optical recording medium of the present invention has a recording layer formed on a substrate of 50 μm=1.
The recording layer is formed on a glass thick film of 50 μm, and a hollow portion is provided by interposing a spacer between this recording layer and the substrate.
作用
本発明は上記した構成によって、従来の２枚の基板と介
在するスペーサにより構成されていた光記録媒体に較べ
、薄型軽量のものとなる。さらに、ガラス厚膜上に記録
層が形成されるために熱変形等の影響も少なく、かっこ
の記録層と基板間に中空層を有していることから湿気か
らも記録層を保護することができる。Due to the above-described structure, the present invention is thinner and lighter than the conventional optical recording medium that is constructed of two substrates and an intervening spacer. Furthermore, since the recording layer is formed on a thick glass film, it is less affected by thermal deformation, and since there is a hollow layer between the recording layer of the bracket and the substrate, the recording layer can be protected from moisture. can.
実施例
第１図は本発明の光記録媒体の一実施例を示す断面図で
ある。図においてｌは厚膜、２は記録層、３ａ、３ｂは
内外側スペーサ、４は基板、５は中空部を示している。Embodiment FIG. 1 is a sectional view showing an embodiment of the optical recording medium of the present invention. In the figure, 1 is a thick film, 2 is a recording layer, 3a and 3b are inner and outer spacers, 4 is a substrate, and 5 is a hollow portion.
前記厚膜１はガラスで成形されており、厚さが５０〜１
５０μｍ程度である。The thick film 1 is made of glass and has a thickness of 50 to 1
It is about 50 μm.
記録層２は光反射性材料で形成されており、光反射性材
料としては、集光されたレーザ光を反射することのでき
るＡβやＴｅを挙げることができる。また、記録層２の
厚さは２００〜６００人程度である。記録層２の形成手
法としては、イオン茂着、真空蒸着、スバフタ蒸着など
を挙げることができる。The recording layer 2 is made of a light-reflective material, and examples of the light-reflective material include Aβ and Te, which can reflect focused laser light. Further, the thickness of the recording layer 2 is about 200 to 600 people. Examples of methods for forming the recording layer 2 include ion deposition, vacuum deposition, and suvafuta deposition.
内外側スペーサ３ａ、３ｂは例えば合成樹脂でできてお
り、円環状をなしている。内外側スペーサの厚さは０．
１〜０．２ｍｍｔＷ度であり、厚膜ｌ。The inner and outer spacers 3a, 3b are made of synthetic resin, for example, and have an annular shape. The thickness of the inner and outer spacers is 0.
1~0.2mmtW degree, thick film l.
基板４間の中空部５を形成している。A hollow portion 5 between the substrates 4 is formed.
基ｖｉ４は合成樹脂で成形されており、厚さは１．５１
程度である。基板４の材料としては例えばポリカーボネ
ートあるいは、ポリメタクリル酸メチルなどが挙げられ
る。The base vi4 is molded from synthetic resin and has a thickness of 1.51
That's about it. Examples of the material for the substrate 4 include polycarbonate and polymethyl methacrylate.
図に示してないレーザ光は基板４を透過して記録層２に
集光され、情報の記録、再生を行う。A laser beam (not shown) passes through the substrate 4 and is focused on the recording layer 2 to record and reproduce information.
第２図は本発明の光記録媒体の他の実施例を示す要部の
断面図である。これは厚膜６の表面にトラッキングガイ
ドを有する表面凹凸層７を形成し、その表面凹凸層７上
に記録層８を形成している。FIG. 2 is a sectional view of essential parts showing another embodiment of the optical recording medium of the present invention. In this method, a surface unevenness layer 7 having a tracking guide is formed on the surface of a thick film 6, and a recording layer 8 is formed on the surface unevenness layer 7.
その他、厚膜６．記録層８．基板９１図に示していない
内外側スペーサの材料、厚さなどは前記実施例とほぼ同
様である。Others, thick film 6. Recording layer 8. The material, thickness, etc. of the inner and outer spacers (not shown) of the substrate 91 are almost the same as in the previous embodiment.
発明の効果
本発明は上記のように、記録層の基体としてガラス厚膜
を用いることにより、光記録媒体の厚さを１．５ｍｓ程
度と薄型軽量のものにすることができ、さらに記録層と
基板の間に中空部を設けることにより記録層の保護機能
を高めることができる。Effects of the Invention As described above, the present invention uses a thick glass film as the base of the recording layer, thereby making it possible to make the optical recording medium thin and light with a thickness of about 1.5 ms. By providing a hollow portion between the substrates, the protective function of the recording layer can be enhanced.
第１図は本発明の光記録媒体の一実施例を示す断面図、
第２図は同地の例を示す要部の断面図。
第３図は従来の光記録媒体の一例を示す断面図である。
１．６・・・・・・厚膜、２．７．１２・−・・・・記
録層、３ ａ、 ３ ｂ、 ｌ ３ ａ、 １３
ｂ−内外側スペーサ、４．９．１）・−・・・基板、
５．１０．１４・・・・・・中空部、７・・・・・・表
面凹凸層。
代理人の氏名 弁理士 中尾敏男 はかｉ名ｌ・−４繰
４°−求核
１−−− ｙ学生
６″・−−７１）月１ミ
１ｆ−基社FIG. 1 is a sectional view showing an embodiment of the optical recording medium of the present invention;
Figure 2 is a cross-sectional view of the main parts of an example from the same area. FIG. 3 is a sectional view showing an example of a conventional optical recording medium. 1.6... Thick film, 2.7.12... Recording layer, 3 a, 3 b, l 3 a, 13
b-Inner and outer spacers, 4.9.1) --- Substrate,
5.10.14... Hollow part, 7... Surface uneven layer. Agent's name: Patent attorney Toshio Nakao Name: -4 repeats 4° - Nucleophilic 1 --- Y Student 6'' ---71) Monthly 1st year 1st floor - Kisha
Claims (2)
相対向する厚膜および基板と、この厚膜の対向面側に設
けられる記録層と、前記厚膜、基板間に介在されるスペ
ーサとを具備したことを特徴とする光記録媒体。(1) An optical recording medium using focused laser light,
An optical recording medium comprising: a thick film and a substrate facing each other; a recording layer provided on the opposing surface of the thick film; and a spacer interposed between the thick film and the substrate.
５０μｍ〜１５０μｍであることを特徴とする特許請求
の範囲第（１）項に記載の光記録媒体。(2) The optical recording medium according to claim (1), wherein the thick film is formed of glass, and the thickness of the thick film is 50 μm to 150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61140740A JPS62298041A (en) | 1986-06-17 | 1986-06-17 | Optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61140740A JPS62298041A (en) | 1986-06-17 | 1986-06-17 | Optical recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62298041A true JPS62298041A (en) | 1987-12-25 |
Family
ID=15275608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61140740A Pending JPS62298041A (en) | 1986-06-17 | 1986-06-17 | Optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62298041A (en) |
-
1986
- 1986-06-17 JP JP61140740A patent/JPS62298041A/en active Pending
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