JPH0453017B2 - - Google Patents
Info
- Publication number
- JPH0453017B2 JPH0453017B2 JP9542384A JP9542384A JPH0453017B2 JP H0453017 B2 JPH0453017 B2 JP H0453017B2 JP 9542384 A JP9542384 A JP 9542384A JP 9542384 A JP9542384 A JP 9542384A JP H0453017 B2 JPH0453017 B2 JP H0453017B2
- Authority
- JP
- Japan
- Prior art keywords
- optical memory
- cloth
- memory element
- adhesive
- manufacturing
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 36
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 description 12
- 239000010410 layer Substances 0.000 description 10
- 239000004744 fabric Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Description
【発明の詳細な説明】
＜発明の技術分野＞
本発明は光学的に情報を記録・再生する光メモ
リ素子の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Technical Field of the Invention> The present invention relates to a method of manufacturing an optical memory element for optically recording and reproducing information.
＜発明の技術的背景とその問題点＞
近年、光メモリ素子は高密度大容量メモリ装置
として注目されており、中でも光デイスク装置は
磁気テープ等に比べてアクセス時間を短縮するこ
とが出来るため、特に研究開発が活発に行なわれ
ている。<Technical background of the invention and its problems> In recent years, optical memory devices have attracted attention as high-density, large-capacity memory devices, and optical disk devices are particularly popular because they can shorten access time compared to magnetic tapes. Research and development is actively underway.
従来より提案されている情報の消去も可能な光
磁気メモリ円板の構造の断面一部拡大図を第５図
に示す。 FIG. 5 shows a partially enlarged cross-sectional view of the structure of a conventionally proposed magneto-optical memory disk capable of erasing information.
第５図において、１及び５はそれぞれガラスあ
るいはアクリル等から成る透明基板であり、２及
び４はそれぞれ記録層であり、例えば磁性膜単層
あるいは誘電体膜、磁性体膜、反射膜等の組合せ
でなる多層膜で構成されている。また３は紫外線
硬化樹脂等の接着層である。 In FIG. 5, 1 and 5 are transparent substrates made of glass or acrylic, respectively, and 2 and 4 are recording layers, for example, a single magnetic film or a combination of a dielectric film, a magnetic film, a reflective film, etc. It is made up of a multilayer film. Further, 3 is an adhesive layer made of ultraviolet curing resin or the like.
このような二枚重ねの構造の光メモリ素子にあ
つては、素子の表裏２面に情報を入れることが出
来るため、素子１枚当りの情報量が２倍になるメ
リツトがある。また、もし透明基板１及び５とし
てアクリル等の樹脂基板を用いた場合には基板の
そり等の形状変化を抑えることが出来るという利
点もある。 In the case of such an optical memory element having a two-layer structure, information can be stored on both the front and back sides of the element, so there is an advantage that the amount of information per element can be doubled. Furthermore, if resin substrates such as acrylic are used as the transparent substrates 1 and 5, there is an advantage that changes in shape such as warping of the substrates can be suppressed.
しかし、この場合、接着層３に厚みむらがなく
また素子毎の厚みにばらつきがないようにするこ
とが重要な問題となって来る。例えば厚みのむら
は、光メモリ素子が円板の場合、素子の回転駆動
に際してアンバランスが生じる原因となり、好ま
しくない。従つて接着層３の厚みむら等を厳しく
管理して光メモリ素子を製作する必要がある。 However, in this case, it is an important problem to ensure that the adhesive layer 3 has a uniform thickness and that there is no variation in thickness from element to element. For example, if the optical memory element is a disk, uneven thickness causes imbalance when the element is rotated, which is not preferable. Therefore, it is necessary to strictly control the thickness unevenness of the adhesive layer 3 to manufacture the optical memory element.
＜発明の効果＞
本発明は上記諸点に鑑みて成されたものであり
２枚重ねの光メモリ素子において接着層の厚みむ
らを無くすることが可能な光メモリ素子の製造方
法を提供することを目的とし、この目的を達成す
るため、本発明の光メモリ素子の製造方法は布状
部材に接着剤を吸収含有させる工程と、それぞれ
記録層の形成された第１及び第２の基板間に上記
の布状部材を介在させる工程と、上記第１及び第
２の基板間に圧力を加える工程と、上記の接着剤
を硬化せしめる工程とを備えるように構成されて
いる。<Effects of the Invention> The present invention has been made in view of the above points, and an object of the present invention is to provide a method for manufacturing an optical memory element that can eliminate uneven thickness of an adhesive layer in a two-layer optical memory element. In order to achieve this object, the method for manufacturing an optical memory element of the present invention includes the steps of absorbing and containing an adhesive into a cloth-like member, and disposing the cloth-like member between the first and second substrates each having a recording layer formed thereon. The method is configured to include a step of interposing a member, a step of applying pressure between the first and second substrates, and a step of curing the adhesive.
＜発明の実施例＞
以下、本発明を図面を参照して詳細に説明す
る。<Embodiments of the Invention> The present invention will be described in detail below with reference to the drawings.
第１図は本発明に従つて製造された光メモリ素
子の一例の構造を示す断面一部拡大図である。 FIG. 1 is a partially enlarged cross-sectional view showing the structure of an example of an optical memory element manufactured according to the present invention.
第１図において、１及び５はそれぞれガラスあ
るいはアクリル等から成る透明基板であり、２及
び４はそれぞれ記録層であり、例えば磁性膜単層
あるいは誘電体膜、磁性体膜、反射膜等の組合せ
でなる多層膜で構成されている。また６は本発明
の特徴である紫外線硬化樹脂等の接着剤を吸収含
有した布状部材から成る接着層である。 In FIG. 1, 1 and 5 are transparent substrates made of glass or acrylic, respectively, and 2 and 4 are recording layers, for example, a single magnetic film or a combination of a dielectric film, a magnetic film, a reflective film, etc. It is made up of a multilayer film. Further, 6 is an adhesive layer made of a cloth-like member absorbing and containing an adhesive such as an ultraviolet curing resin, which is a feature of the present invention.
上記接着層６を布等のガーゼ状部材に接着剤を
しみこませた接着層で構成することにより、接着
層６の厚みが布の厚みで規定されて一定となる。
また接着剤の量を布状部材で置き換える分だけ少
なくすることが出来る。 By forming the adhesive layer 6 with an adhesive layer made of a gauze-like member such as cloth impregnated with an adhesive, the thickness of the adhesive layer 6 is defined by the thickness of the cloth and becomes constant.
Further, the amount of adhesive can be reduced by replacing it with the cloth-like member.
更にはテープ状の布状部材に複数の光メモリ素
子を接着させたまま移動するように成すこと、即
ち布状部材をキヤリアとして用いることも可能で
あるため、光メモリ素子に手をふれることが無く
なり、素子表面を汚すことが無くなる等の利点が
ある。 Furthermore, it is possible to move a plurality of optical memory elements while being adhered to a tape-like cloth member, that is, it is possible to use the cloth member as a carrier, which eliminates the need to touch the optical memory elements. There are advantages such as no contamination of the element surface.
次に、本発明にしたがつて上記第１図に示した
光メモリ素子を作る製造方法について説明する。 Next, a method of manufacturing the optical memory element shown in FIG. 1 according to the present invention will be described.
第２図は本発明の光メモリ素子の製造方法の一
実施例を説明するための図であり、同図ａはその
正面図、同図ｂはその平面図である。 FIG. 2 is a diagram for explaining an embodiment of the method for manufacturing an optical memory element of the present invention, in which FIG. 2A is a front view thereof, and FIG. 2B is a plan view thereof.
第２図ａ及びｂにおいて、８はテープ状の布状
部材であり、この布状部材８は製造される光メモ
リ素子のキヤリアとしての役目も成している。こ
の布状部材８に所定間隔で適当な粘度（例えば数
100cps）を持つ紫外線硬化性の接着剤７を滴して
布状部材８に吸収含有させ、テーブル９の上に置
かれた光メモリ素子要素１１，１１′で挾み、押
え板１０で上面から加圧する。光メモリ素子要素
１１は第１図における第１の透明基板１上に磁性
膜を含む記録層２を形成した構成のものであり、
また同様に光メモリ素子要素１１′は第２の透明
基板５上に磁性膜を含む記録層４を形成した構成
のものであり、両者は記録層２及び４を対向され
た状態で接着剤７の含有された布状部材８を介在
させて張り合わせた後、加圧される。光メモリ素
子要素１１，１１′間の間隔（スペース）が一定
になつたところで、紫外線１３を照射して接着剤
７を硬化させる。その後、キヤリアとしての役目
も成す布状部材８を矢印（右）方向に所定量移動
させて２枚重ねに製造された光メモリ素子を移送
する。 In FIGS. 2a and 2b, 8 is a tape-like cloth member, and this cloth member 8 also serves as a carrier for the optical memory element to be manufactured. This cloth-like member 8 is coated at predetermined intervals with an appropriate viscosity (for example, several
A drop of ultraviolet curable adhesive 7 having a viscosity of 100 cps) is absorbed and incorporated into the cloth-like member 8, and the adhesive is sandwiched between optical memory elements 11 and 11' placed on the table 9, and applied from above using the presser plate 10. Press. The optical memory element element 11 has a structure in which a recording layer 2 including a magnetic film is formed on a first transparent substrate 1 in FIG.
Similarly, the optical memory element 11' has a structure in which a recording layer 4 including a magnetic film is formed on a second transparent substrate 5, and both are coated with an adhesive 7 with the recording layers 2 and 4 facing each other. After pasting together with the included cloth member 8 interposed therebetween, pressure is applied. When the distance (space) between the optical memory element elements 11 and 11' becomes constant, ultraviolet rays 13 are irradiated to harden the adhesive 7. Thereafter, the cloth-like member 8, which also serves as a carrier, is moved by a predetermined amount in the direction of the arrow (right) to transport the optical memory elements manufactured in two layers.
１２は既に接着されて移送された２枚重ね構造
の光メモリ素子を示している。 Reference numeral 12 indicates a two-layered optical memory element that has already been bonded and transported.
上記のような製造方法によれば、第３図に示す
ように素子から溢れ出た接着剤７は布状部材８に
吸収保有されるため、素子端面１３に回り込むこ
とが無く、またテーブル９にも溢れ出た接着剤７
が滴ることがないため、余剰接着剤の除去が簡単
になる。なお、１４は光通過部を示している。 According to the manufacturing method described above, as shown in FIG. Adhesive 7 overflowed
There is no dripping, making it easier to remove excess adhesive. Note that 14 indicates a light passage section.
本発明は接着剤を吸収含有する布状部材を光メ
モリ素子の接着層内に介在させて製造するように
成していることを特徴としたものであり、この主
旨の範囲内において種々の変形が可能である。 The present invention is characterized in that it is manufactured by interposing a cloth-like member that absorbs and contains an adhesive within the adhesive layer of an optical memory element, and various modifications may be made within the scope of this invention. It is possible.
例えば
布状部材８は綿、麻、絹等の天然繊維やレー
ヨン、アセテート、ナイロン、ポリエステル等
の合成繊維でできた、ガーゼ状の織布あるいは
不織布のどちらでも良く、また格子状のもので
も良い。 For example, the cloth-like member 8 may be either a gauze-like woven fabric or a non-woven fabric made of natural fibers such as cotton, linen, or silk or synthetic fibers such as rayon, acetate, nylon, or polyester, or it may be a lattice-like material. .
布の厚みは光メモリ素子の種類により異なる
が光メモリ円板の場合には通常50〜500μｍ程
度である。また布状部材８の幅は第２図ｂに示
すように光メモリ素子１１の大きさよりも大き
ければ好適であるが、必ずしもこれに限定され
るものではなく、第４図に示すように素子１１
の大きさよりも狭くてもスペーサとしての機能
を果たすものであれば良い。 The thickness of the cloth varies depending on the type of optical memory element, but in the case of an optical memory disk, it is usually about 50 to 500 μm. Further, the width of the cloth-like member 8 is preferably larger than the size of the optical memory element 11 as shown in FIG. 2b, but it is not necessarily limited to this.
Even if it is narrower than the size of the spacer, it may be used as long as it can function as a spacer.
布状部材８の材質は特に限定されないが、屈
折率1.4〜1.6程度の透明な材質のものを用いれ
ば、出来上がった光メモリ円板に対して布状部
材が外部から観察されなくなり、見かけが良く
なる。 The material of the cloth-like member 8 is not particularly limited, but if a transparent material with a refractive index of about 1.4 to 1.6 is used, the cloth-like member will not be observed from the outside of the completed optical memory disk, and the appearance will improve. .
光メモリ素子の端面は紫外線硬化型の接着剤
を用いる場合には第３図に符号１４で示すよう
に一部光を通過させる部分が設けるのが良い。 When an ultraviolet curable adhesive is used on the end face of the optical memory element, it is preferable to provide a portion through which light passes, as shown by reference numeral 14 in FIG.
接着剤として紫外線硬化及び嫌気硬化性のも
のを使用することにより、時間経過と共に未硬
化部分が硬化するため更に好都合である。 It is more convenient to use an adhesive that is UV-curable or anaerobic-curable because the uncured portions will harden over time.
＜発明の効果＞
以上のように本発明によれば、両面使用の光メ
モリ素子の接着を容易に行なうことが出来、しか
も、接着層の厚みを均一に形成することが出来、
基板間の接着層の厚みを精度良く均一化された光
メモリ素子を容易に製造することが出来る。<Effects of the Invention> As described above, according to the present invention, it is possible to easily adhere double-sided optical memory elements, and the thickness of the adhesive layer can be formed uniformly.
It is possible to easily manufacture an optical memory element in which the thickness of the adhesive layer between substrates is made uniform with high precision.
第１図は本発明にしたがって製造される光メモ
リ素子の構造を示す断面一部拡大図、第２図は本
発明の光メモリ素子の製造方法の一実施例を示す
概略図であり、同図ａはその正面図、同図ｂはそ
の平面図、第３図は第２図に示す製造方法の効果
を説明するための図、第４図は本発明の光メモリ
素子の製造方法の他の一実施例を示す図、第５図
は従来の光メモリ素子の構造を示す図である。
１……第１の透明基板、２及び４……記録層、
５……第２の透明基板、６……接着層、７……接
着剤、８……布状部材。
FIG. 1 is a partially enlarged cross-sectional view showing the structure of an optical memory device manufactured according to the present invention, and FIG. 2 is a schematic diagram showing an embodiment of the method for manufacturing an optical memory device of the present invention. 3 is a diagram for explaining the effect of the manufacturing method shown in FIG. 2, and FIG. 4 is another embodiment of the method for manufacturing an optical memory element of the present invention. FIG. 5 is a diagram showing the structure of a conventional optical memory element. 1... First transparent substrate, 2 and 4... Recording layer,
5... Second transparent substrate, 6... Adhesive layer, 7... Adhesive, 8... Cloth-like member.
Claims (1)
板の記録層間に上記布状部材を介在させて張り合
わせる工程と、 上記第１及び第２の基板間に圧力を加える工程
と、 上記接着剤を硬化せしめる工程と を備えたことを特徴とする光メモリ素子の製造方
法。 ２ 上記布状部材がテープ状部材で構成された該
布状部材を接着された光メモリ素子のキャリアと
成したことを特徴とする特許請求の範囲第１項記
載の光メモリ素子の製造方法。[Scope of Claims] 1. A step of absorbing and containing an adhesive in a cloth-like member, and a step of laminating the cloth-like member between the recording layers of the first and second substrates each having a recording layer formed thereon. A method for manufacturing an optical memory element, comprising: applying pressure between the first and second substrates; and curing the adhesive. 2. The method of manufacturing an optical memory element according to claim 1, wherein the cloth-like member is made of a tape-like member and serves as a carrier for an optical memory element to which the cloth-like member is adhered.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542384A JPS60239952A (en) | 1984-05-12 | 1984-05-12 | Production of optical memory element |
| US07/328,743 US4917751A (en) | 1984-05-11 | 1989-03-20 | Method of producing double sided optical memory disks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542384A JPS60239952A (en) | 1984-05-12 | 1984-05-12 | Production of optical memory element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60239952A JPS60239952A (en) | 1985-11-28 |
| JPH0453017B2 true JPH0453017B2 (en) | 1992-08-25 |
Family
ID=14137283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9542384A Granted JPS60239952A (en) | 1984-05-11 | 1984-05-12 | Production of optical memory element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60239952A (en) |
-
1984
- 1984-05-12 JP JP9542384A patent/JPS60239952A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60239952A (en) | 1985-11-28 |
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