JP2735282B2 - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JP2735282B2 JP2735282B2 JP1083605A JP8360589A JP2735282B2 JP 2735282 B2 JP2735282 B2 JP 2735282B2 JP 1083605 A JP1083605 A JP 1083605A JP 8360589 A JP8360589 A JP 8360589A JP 2735282 B2 JP2735282 B2 JP 2735282B2
- Authority
- JP
- Japan
- Prior art keywords
- transparent
- substrates
- information
- substrate
- pair
- 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 - Lifetime
Links
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、両面貼り合わせの構造を待つ情報記録媒体
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an information recording medium waiting for a double-sided bonding structure.
（従来の技術） 情報記録媒体たとえば、光ディスクには第６図に示す
ようなものが知られている。すなわち、この光ディスク
は２枚の基板1,1を貼り合わせてその対向面に記録層２
を有してなり、両面使用が可能になっている。(Prior Art) As an information recording medium, for example, an optical disk as shown in FIG. 6 is known. In other words, this optical disc has two substrates 1 and 1 bonded together and a recording layer 2
And can be used on both sides.
また、上記基板1,1の表面には第７図に示すような、
商品名や製造番号などの情報５を表示するラベル３が貼
り付けられている。このラベル３は上記基板1,1の記録
層２に対する光照射を妨げることのないように、記録層
２のエリヤＡを避けたエリヤＢに貼り付けられている。In addition, as shown in FIG.
A label 3 displaying information 5 such as a product name and a serial number is attached. The label 3 is attached to an area B of the recording layer 2 which avoids the area A so as not to hinder the light irradiation on the recording layer 2 of the substrates 1 and 1.
このように、構成された光ディスクは使用時にはター
ンテーブル４上に装着されて回転駆動されるようになっ
ている。The optical disk thus configured is mounted on the turntable 4 and rotated when used.
ところで、上記ラベル３を上記基板1,1の表面のター
ンテーブル装置エリヤＣに貼り付けると、光ディスクは
ラベル３を介してターテーブル４に装着されることにな
り、この状態で回転駆動されると、面ブレを発生してし
まう。By the way, when the label 3 is attached to the turntable device area C on the surface of the substrates 1 and 1, the optical disk is mounted on the tar table 4 via the label 3, and when the optical disk is driven to rotate in this state. , Causing surface shake.
このため、ターンテーブル装着エリヤＣは上記ラベル
３を避けた領域に狭く限定されていた。For this reason, the turntable mounting area C is narrowly limited to an area avoiding the label 3.
（発明が解決しようとする課題） しかしながら、ターンテーブル装着用エリヤＣが狭く
なると、光ディスクの保持状態が不安定化し、やはり回
転駆動時に面ブレを発生してしまうとう問題があった。(Problems to be Solved by the Invention) However, when the area C for mounting the turntable becomes narrow, the holding state of the optical disk becomes unstable, and there is a problem that surface shake occurs during the rotation driving.
また、ラベル３を基板1,1の表面に貼り付けていたた
め、長期間の使用のうちにラベル３が剥がれてしまう虞
れがあった。Further, since the label 3 is attached to the surface of the substrate 1 or 1, there is a possibility that the label 3 may be peeled off during long-term use.
そこで、この発明は、ターンテーブル装着エリヤを大
きくできるとともに、長期間使用しても情報部の表示が
不明になることがないようにした情報記録媒体を提供す
ることを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide an information recording medium capable of increasing the size of a turntable mounting area and preventing the display of an information section from being unclear even after long-term use.
［発明の構成］ （課題を解決するための手段） 本発明は、上記課題を解決するために、一部に透明部
を有し、該透明部が互いに重ならないように重合された
一対の基板と、これら一対の基板の対向面側の透明部に
記録された情報部と、前記一対の基板の対向面側の透明
部以外に設けられた記録膜とを具備してなるものであ
る。[Constitution of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a pair of substrates having a transparent part in one part and being superposed so that the transparent parts do not overlap each other. And an information portion recorded on the transparent portions on the opposing surfaces of the pair of substrates, and a recording film provided on portions other than the transparent portions on the opposing surfaces of the pair of substrates.
（作用） 重合される一対の基板の対向面側の透明部に情報部を
記録することにより、情報部を基板の表面側に露出させ
ないようにして、ターンテーブル装着エリヤを広くする
とともに、情報部が剥がれこともないようにし、また、
一対の基板をその透明部が互いに重ならないように重合
することにより、一方の基板の情報部のみ解読できるよ
うにした。(Operation) By recording the information portion on the transparent portion on the opposite surface side of the pair of substrates to be superimposed, the information portion is not exposed to the front surface side of the substrate, so that the turntable mounting area is widened and the information portion is Should not be peeled off,
By polymerizing a pair of substrates so that their transparent portions do not overlap each other, only the information portion of one substrate can be read.
（実施例） 以下、本発明を第１図乃至第４図に示す一実施例を参
照して説明する。(Embodiment) Hereinafter, the present invention will be described with reference to an embodiment shown in FIGS. 1 to 4.
第１図は情報記憶媒体としての光ディスクを示すもの
で、この光ディスクは２枚の透明な基板11,11を重合し
てなり、これら基板11,11は透明な接着剤13により接着
されている。FIG. 1 shows an optical disk as an information storage medium. This optical disk is obtained by polymerizing two transparent substrates 11 and 11, and these substrates 11 and 11 are adhered by a transparent adhesive 13.
また、上記基板11,11の対向面側には第４図にも示す
ように、記録層15が成膜されている。前記記録層15の中
央部には円形状の透明部16が形成され、この透明部16に
は商品名や製造番号などを表示する情報部14が印刷され
ている。したがって、前記基板11,11の透明部16を介し
て上記情報部14の内容を読取ることができるようになっ
ている。In addition, a recording layer 15 is formed on the opposing surfaces of the substrates 11, 11, as shown in FIG. A circular transparent portion 16 is formed at the center of the recording layer 15, and an information portion 14 for displaying a product name, a serial number, and the like is printed on the transparent portion 16. Therefore, the contents of the information section 14 can be read through the transparent sections 16 of the substrates 11, 11.
なお、この場合、基板11越しに解読することを目的と
するときは、情報部14の文字、図形は反転した状態と
し、また、他方の基板11越しに解読することを目的とす
るときは、情報部14の文字、図形はそのままの形状にす
る必要がある。In this case, when the purpose is to decode over the board 11, the characters and figures of the information section 14 are in an inverted state, and when the purpose is to decode over the other board 11, The characters and figures in the information section 14 need to be kept as they are.
つぎに、上記光ディスクの製造手順について説明す
る。Next, a procedure for manufacturing the optical disk will be described.
まず、第３図に示す透明な光ディスク基板11の中央部
に円形状のマスク（図示しない）を貼り付けたのち、記
録膜15を成膜する。この成膜後、マスクを剥がして透明
部16を形成し、この透明部16にたとえばスクリーン印刷
の方法で第４図に示すように、情報部14を印刷する。そ
して、このように成形した基板11を２枚用意し、その記
録膜15側の面にそれぞれ透明な接着剤13を塗布し、これ
ら基板11,11を重合接着する。このように接着すると、
第２図に示すように、成膜時のマスク領域（透明部16）
を通して基板11,11越しに情報部14を解読できる。First, after a circular mask (not shown) is attached to the center of the transparent optical disk substrate 11 shown in FIG. 3, a recording film 15 is formed. After this film formation, the mask is peeled off to form a transparent portion 16, and the information portion 14 is printed on the transparent portion 16 by, for example, a screen printing method as shown in FIG. Then, two substrates 11 formed in this manner are prepared, and a transparent adhesive 13 is applied to the surface on the recording film 15 side, and these substrates 11 and 11 are polymerized and bonded. When glued like this,
As shown in FIG. 2, a mask region (transparent portion 16) at the time of film formation
The information section 14 can be decrypted through the substrates 11 and 11 through.
上述したように、一対の基板11,11の接合面側の透明
部16に情報部14を印刷するため、情報部14が基板11,11
の表面に露出しない。したがって、ターンテーブル装着
エリヤＣを広くでき、回転駆動時の面ブレを防止できる
とともに、従来のように、情報部14が剥がれてしまうこ
ともない。As described above, since the information section 14 is printed on the transparent section 16 on the joint surface side of the pair of substrates 11 and 11, the information section 14
Not exposed on the surface of Therefore, the turntable mounting area C can be widened, the surface shake during the rotation driving can be prevented, and the information section 14 does not peel off as in the related art.
なお、上記一実施例のものにおいては、情報部14を反
転形状で印刷した場合、一方の基板11の透明部16からそ
の情報部14を読取るとき、これと同時に他方の基板11の
情報部14が反転した状態で見えてしまい解読しずらくな
る。In the embodiment, when the information portion 14 is printed in an inverted shape, when the information portion 14 is read from the transparent portion 16 of one substrate 11, the information portion 14 of the other substrate 11 is simultaneously read. Are seen in an inverted state, making it difficult to decode.
そこで、本発明は第５図（ａ）に示すように、基板2
1,21にそれぞれ円弧状の透明部22を形成し、この透明部
22に第５図（ｂ）に示すように、情報部23を印刷した
後、これら基板21,21をその透明部22が互いに重ならな
いように重合接着するようにしても良い。Therefore, the present invention relates to a method for manufacturing a substrate 2 as shown in FIG.
An arc-shaped transparent portion 22 is formed on each of the transparent portions 1 and 21 and the transparent portion 22 is formed.
As shown in FIG. 5 (b), the information portion 23 may be printed on the substrate 22, and the substrates 21, 21 may be superimposed and bonded so that the transparent portions 22 do not overlap each other.
この実施例によれば、第５図（ｃ）に示すように、必
要な面の情報部23だけが解読され、他方側の基板21の情
報部23は記録層24によって遮られ、解読し易くなる。According to this embodiment, as shown in FIG. 5 (c), only the information part 23 on the necessary surface is decoded, and the information part 23 of the other substrate 21 is blocked by the recording layer 24, so that it is easy to read. Become.
また、上記一実施例においては、基板11,11の透明部1
6に直接情報部14を印刷したが、これに限られることな
く、記録膜保護用の透明保護膜の上に情報部14を印刷す
るようにしてもよい。Further, in the above embodiment, the transparent portions 1 of the substrates 11 and 11 are provided.
Although the information section 14 is printed directly on 6, the information section 14 is not limited to this, and the information section 14 may be printed on a transparent protective film for protecting the recording film.
［発明の効果］ 以上説明したように、本発明によれば、一対の基板の
接合面側に情報部を記録するから、情報部が基板の表面
に露出せず、ターンテーブル装着エリヤを広くでき、回
転駆動時の面ブレを防止できるとともに、従来のよう
に、情報部が剥がれるといったこともない。[Effects of the Invention] As described above, according to the present invention, since the information portion is recorded on the joint surface side of the pair of substrates, the information portion is not exposed on the surface of the substrate, and the turntable mounting area can be widened. In addition, it is possible to prevent the surface from being shaken during the rotation drive, and it is possible to prevent the information section from being peeled off unlike the related art.
また、一対の基板をその透明部が互いに重ならないよ
うに重合するから、一方の基板の情報部のみを、他方の
基板の情報部に煩わされることなく容易に解読できると
いう効果を奏する。Further, since the pair of substrates are superimposed so that their transparent portions do not overlap each other, there is an effect that only the information portion of one substrate can be easily decoded without bothering the information portion of the other substrate.
第１図乃至第４図は本発明の一実施例を示すもので、第
１図は光ディスクを示す正面図、第２図はその平面図、
第３図は基板を示す平面図、第４図は基板の透明部に情
報部を印刷した状態を示す平面図、第５図は他の実施例
を示す説明図、第６図は従来の光ディスクを示す正面
図、第７図はそのラベルを示す平面図である。 11,11……基板、15……情報部、16……透明部。1 to 4 show an embodiment of the present invention. FIG. 1 is a front view showing an optical disk, FIG.
FIG. 3 is a plan view showing a substrate, FIG. 4 is a plan view showing a state in which an information section is printed on a transparent portion of the substrate, FIG. 5 is an explanatory view showing another embodiment, and FIG. FIG. 7 is a plan view showing the label. 11, 11 ... board, 15 ... information section, 16 ... transparent section.
Claims (1)
ならないように重合された一対の基板と、 これら一対の基板の対向面側の透明部に記録された情報
部と、 前記一対の基板の対向面側の透明部以外に設けられた記
録膜と、 を具備してなることを特徴とする情報記録媒体。1. A pair of substrates having a transparent part in a part, the transparent parts being superposed so that they do not overlap each other, an information part recorded on the transparent part on the opposite surface side of the pair of substrates, An information recording medium, comprising: a recording film provided on a portion other than the transparent portion on the opposing surfaces of the pair of substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083605A JP2735282B2 (en) | 1989-03-31 | 1989-03-31 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083605A JP2735282B2 (en) | 1989-03-31 | 1989-03-31 | Information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02263343A JPH02263343A (en) | 1990-10-26 |
| JP2735282B2 true JP2735282B2 (en) | 1998-04-02 |
Family
ID=13807116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1083605A Expired - Lifetime JP2735282B2 (en) | 1989-03-31 | 1989-03-31 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2735282B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420685U (en) * | 1990-06-12 | 1992-02-20 | ||
| JP2661884B2 (en) * | 1995-03-31 | 1997-10-08 | 東芝イーエムアイ株式会社 | Method and apparatus for manufacturing bonded disk |
| JP2006107619A (en) * | 2004-10-05 | 2006-04-20 | Fuji Photo Film Co Ltd | Optical disk |
-
1989
- 1989-03-31 JP JP1083605A patent/JP2735282B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02263343A (en) | 1990-10-26 |
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