JPH02165445A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPH02165445A JPH02165445A JP63318458A JP31845888A JPH02165445A JP H02165445 A JPH02165445 A JP H02165445A JP 63318458 A JP63318458 A JP 63318458A JP 31845888 A JP31845888 A JP 31845888A JP H02165445 A JPH02165445 A JP H02165445A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- recording
- information recording
- medium
- optical information
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 abstract description 8
- 229920000515 polycarbonate Polymers 0.000 abstract description 4
- 239000004417 polycarbonate Substances 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000001721 transfer moulding Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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〕
本発明は光カード等の長方形状の光情報記録媒体に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rectangular optical information recording medium such as an optical card.
従来、光学的な情報記録・再生装置にお込では、書き込
み、読み出しのトラッキングサーブのため基板表面に予
め一定間隔で溝を形成しておく情報記録再生方法がある
。この方法では、溝が読み出しの案内役を果たすためレ
ーザー光のトラッキング制御精度が向上し、溝無し基板
を用いた方法よシも高速アクセスが可能である。Conventionally, in optical information recording/reproducing apparatuses, there is an information recording/reproducing method in which grooves are formed in advance at regular intervals on the surface of a substrate for tracking serve for writing and reading. In this method, the grooves serve as a readout guide, so the tracking control accuracy of the laser beam is improved, and high-speed access is possible compared to the method using a substrate without grooves.
またこのトラック溝の形成ノ９ターンも元ディスク等の
円形の光情報記録媒体の同心円状やうす巻き状のパター
ンと同じものを長方形光情報記録媒体に使用し、溝ノ臂
ターンの中心を軸として長方形元情報記録媒体を回転さ
せてアクセスする技術が知られている。さらに長方形の
一辺方向に平行に＠パターンを形成し、該記録媒体をＸ
軸方向に。In addition, the nine turns of this track groove are the same as the concentric or thinly wound pattern of the circular optical information recording medium such as the original disk, and are used for the rectangular optical information recording medium, with the center of the groove's arm turn being the axis. A technique is known in which a rectangular original information recording medium is rotated and accessed. Further, a @ pattern is formed parallel to one side of the rectangle, and the recording medium is
axially.
レーザーヘッドｋｙ軸方向に各々移動させてアクセスす
る技術が知られている。A technique is known in which the laser head is accessed by moving each laser head in the ky-axis direction.
また、長方形光情報記録媒体よシもさらに高速なアクセ
ス技術としては光ディスク等の円形状の光情報記録媒体
や円筒形の光情報記録媒体が知られている。In addition to rectangular optical information recording media, circular optical information recording media such as optical disks and cylindrical optical information recording media are known as faster access technologies.
しかしながら上記従来技術の長方形光情報記録媒体に同
心円形状のトラック溝を形成する場合は長方形の中に円
形の有効領域を得るため有効領域が制限される。However, when concentric track grooves are formed in the conventional rectangular optical information recording medium, the effective area is limited because a circular effective area is obtained within the rectangle.
また長方形元情報記録媒体に一辺方向に平行にトラック
溝を形成する場合はレーデ−光が反転する領域が必要で
あシ、有効領域が制限される。さらにレーザー元が反転
する際にレーデ−光が減速および停止するため反転領域
において、ゴミ、キズ等によるトラックはずれあるいは
、ノイズが発生しやすい。Furthermore, when track grooves are formed parallel to one side of a rectangular information recording medium, an area where the radar light is reversed is required, which limits the effective area. Furthermore, since the radar light slows down and stops when the laser source is reversed, it is easy for the track to be misaligned due to dust, scratches, etc. or to generate noise in the reverse region.
したがって次のような欠点があった。Therefore, there were the following drawbacks.
（１） 記録領域が制限されて記録容量が小さい。(1) The recording area is limited and the recording capacity is small.
（２）反転領域においてトラックはずれあるいはノイズ
発生があシ、エラーレートが高い。(2) Track misalignment or noise generation occurs in the inversion region, and the error rate is high.
また円形および円筒形光情報記録媒体は携帯性に問題が
ある。特に円筒形光情報記録媒体は立体であシ、保存ス
ペースや携帯性に問題があった。Further, circular and cylindrical optical information recording media have problems in portability. In particular, cylindrical optical information recording media are three-dimensional and have problems in terms of storage space and portability.
本発明は上述従来技術の問題点に鑑みなされたものであ
夛、その目的は従来例の円筒形状光情報記録媒体と、カ
ード状元情報記碌媒体の双方の利点を兼ね備え、また各
々の有する欠点を無くすことを可能とする元情報記録媒
体を提供することにある。The present invention has been made in view of the problems of the prior art described above, and its purpose is to combine the advantages of both the conventional cylindrical optical information recording medium and the card-shaped original information storage medium, and to overcome the disadvantages of each. The objective is to provide a source information recording medium that makes it possible to eliminate the
上記目的は本発明によれば、可撓性を有し且つほぼ矩形
板の形状を有する情報記録媒体であって。According to the present invention, the above object is an information recording medium that is flexible and has a substantially rectangular plate shape.
非記録再生時には平坦な形状を有するようにされておシ
、記録再生時には前記媒体の回かい合う各各の端部が接
合して円筒形状を成すようにされていることを特徴とす
る、光情報記録媒体によって達成される。An optical device characterized in that the medium has a flat shape during non-recording and reproducing, and each of the rotating ends of the medium is joined to form a cylindrical shape during recording and reproducing. This is achieved through information recording media.
以下１本発明に係る実施例を図面に基づいて具体的且つ
詳細に説明する。EMBODIMENT OF THE INVENTION Hereinafter, an embodiment according to the present invention will be described specifically and in detail based on the drawings.
第１図は本発明に係る元情報記録媒体の保存及び携帯時
の際の状態を示す平面図であシ、第２図は第１図の元情
報記録媒体の記録・再生時の状態を示す斜視図である。FIG. 1 is a plan view showing the state of the original information recording medium according to the present invention during storage and carrying, and FIG. 2 shows the state of the original information recording medium of FIG. 1 during recording and reproduction. FIG.
第１図及び第２図において、元情報記録媒体ｌの表面は
光学的に情報の記録及び／又は再生において不都合の少
なめものが好ましく、使用する光に対して透過率の高い
ものであれば尚、良い。また好ましくは円筒形状にカー
ド状態のものを曲げるため屈曲性の良いポリカーボネー
ト、ポリエステル等が好適である。更に媒体１の厚さは
カード形状のときに一般に０．７４±０．０６■である
ことが必要であることから表面に用いる材料は０．２
ｍ〜０．３５＋ｓｍが良い。またキズ防止やゴミ、ヨゴ
レ防止の為に最外層に保護層例えばハードコート層等を
設けても良い。またサーボトラック用案内溝４の形成方
法は射出成形、熱転写成形、光硬化樹脂を用いた光転写
成形さらには光記録層に直接レーデ−光等で溝を形成す
る方式などを用いることができる。光記録層は、有機染
料系と無機金属系があシ、本発明はどちらも用いること
ができる。In FIGS. 1 and 2, it is preferable that the surface of the original information recording medium l has a surface that causes less inconvenience in optically recording and/or reproducing information, and it is preferable that the surface has a high transmittance for the light used. ,good. Moreover, polycarbonate, polyester, etc., which have good flexibility, are suitable since the card-like material is preferably bent into a cylindrical shape. Furthermore, since the thickness of the medium 1 is generally required to be 0.74±0.06cm when it is in the form of a card, the material used for the surface should be 0.2mm thick.
m~0.35+sm is good. Further, a protective layer such as a hard coat layer may be provided on the outermost layer to prevent scratches, dust, and dirt. The servo track guide grooves 4 can be formed by injection molding, thermal transfer molding, optical transfer molding using a photocurable resin, or directly forming grooves in the optical recording layer using radar light or the like. The optical recording layer can be either an organic dye-based material or an inorganic metal-based material, and both can be used in the present invention.
さ、らに光情報記録媒体ｌは、上記表面材に案内溝４と
光記録層を形成しクラ材と接着剤を介して貼シ合せる。Furthermore, for the optical information recording medium 1, guide grooves 4 and an optical recording layer are formed on the above-mentioned surface material, and then the optical information recording medium 1 is laminated to the surface material using an adhesive.
また案内溝４０幅はレーザー元のスポット径以上でなけ
ればならない。Further, the width of the guide groove 40 must be greater than or equal to the original spot diameter of the laser.
以下１本発明の元情報記録媒体の具体的な実施例につい
て説明する。A specific embodiment of the original information recording medium of the present invention will be described below.
厚さ０．３ ｗｓｍで８６＋ｗ＋Ｘ５４ｍのポリカーボ
ネート透明基板に光転写成形により幅３μｍピッチ１２
μｍ深さ２５００Ｘの案内溝を短辺と平行に形成する。3μm pitch 12 by optical transfer molding on a polycarbonate transparent substrate with a thickness of 0.3wsm and a size of 86+w+X54m.
A guide groove with a μm depth of 2500× is formed parallel to the short side.
次にポリメチン系染料と約１０００Ｘ塗布し、厚さ０．
０５ｍで８６■Ｘ５４ｍのポリカーボネートの裏材を熱
可塑性接着剤を用いて貼シ合せる。Next, apply about 1000X of polymethine dye to a thickness of 0.
A polycarbonate backing measuring 0.5 m x 86 x 54 m is laminated using thermoplastic adhesive.
このカード′１に２枚の長辺を厚さ０．０５■、８６簡
ＸＩＯ■のヂリエステルテーグを介して接合する。The long sides of the two cards were joined to this card '1 through a diester tag having a thickness of 0.05 mm and a diameter of 86 mm.
このようにして、厚さ０．７０−０．７７■の長方形カ
ード状、かつ記録再生装置内では円周１０８ｍ。In this way, it is shaped like a rectangular card with a thickness of 0.70-0.77 cm and a circumference of 108 m in the recording/reproducing device.
高さ８６鱈の円筒状の元情報記録媒体を得る。A cylindrical original information recording medium with a height of 86 mm is obtained.
以上説明したようＫ、保存及び／又は携帯時には長方形
カード状であシ、情報の記録及び／又は再生時には円筒
状に撓むことが可能にされていることにより、保存性、
携帯性に優れ、また高速アクセスが可能でちり、記録容
量が大きく、記録・再生時のエラーが少ない、光情報記
録媒体を得ることができる。As explained above, the card is shaped like a rectangular card when stored and/or carried, and can be bent into a cylindrical shape when recording and/or reproducing information, which improves storage stability.
It is possible to obtain an optical information recording medium that is excellent in portability, allows high-speed access, is dust free, has a large recording capacity, and has few errors during recording and reproduction.
第１図は本発明に係る元情報記録媒体の保存及び携帯時
の際の状態を示す平面図であシ、第２図はＷＪ１図の元
情報記録媒体の記録・再生時の状態を示す斜視図である
。
１：光情報記録媒体、２：光情報記録領域、４：サーボ
トラック用案内溝。
代理人 弁理士 山 下 穣 平
第Fig. 1 is a plan view showing the state of the original information recording medium according to the present invention when it is stored and carried, and Fig. 2 is a perspective view showing the state of the original information recording medium of Fig. WJ1 during recording and reproduction. It is a diagram. 1: Optical information recording medium, 2: Optical information recording area, 4: Guide groove for servo track. Agent Patent Attorney Heidai Yamashita
Claims (1)
報記録媒体であって、非記録再生時には平坦な形状を有
するようにされており、記録再生時には前記媒体の向か
い合う各々の端部が接合して円筒形状を成すようにされ
ていることを特徴とす光情報記録媒体。(1) An information recording medium that is flexible and has a substantially rectangular plate shape, which has a flat shape during non-recording and playback, and which has a flat shape at the time of recording and playback, and each of the opposite ends of the medium when recording and playback. An optical information recording medium characterized in that parts are joined to form a cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63318458A JP2514245B2 (en) | 1988-12-19 | 1988-12-19 | Optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63318458A JP2514245B2 (en) | 1988-12-19 | 1988-12-19 | Optical information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02165445A true JPH02165445A (en) | 1990-06-26 |
| JP2514245B2 JP2514245B2 (en) | 1996-07-10 |
Family
ID=18099345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63318458A Expired - Fee Related JP2514245B2 (en) | 1988-12-19 | 1988-12-19 | Optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514245B2 (en) |
-
1988
- 1988-12-19 JP JP63318458A patent/JP2514245B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514245B2 (en) | 1996-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0434230B1 (en) | Optical recording medium and method of recording and reproducing information thereon | |
| NL8902615A (en) | OPTICAL REGISTRATION SYSTEM. | |
| JPS61190721A (en) | Optical memory card | |
| US5293359A (en) | Magnetic recording and reproducing apparatus having a ferrimagnetic recording medium, a magnetic head and first and second light sources | |
| EP0166614A2 (en) | Encoated optical recording medium | |
| JPH02165445A (en) | Optical information recording medium | |
| JPS61239449A (en) | Optical scanner | |
| JPH0263261B2 (en) | ||
| JPH039077Y2 (en) | ||
| JP2996261B2 (en) | Information recording medium | |
| JP3399033B2 (en) | Method for producing optical information recording carrier | |
| JP2854191B2 (en) | recoding media | |
| JP2692146B2 (en) | optical disk | |
| JPH03187043A (en) | Optical disk | |
| JPS63241701A (en) | Information processing method for disk substrate | |
| JP2847993B2 (en) | optical disk | |
| JP2506138B2 (en) | Optical memory device | |
| JPH02227285A (en) | Optical card | |
| JPH0452995B2 (en) | ||
| JP2515553B2 (en) | Light card | |
| JP2938906B2 (en) | Optical recording medium | |
| JPS6331034A (en) | Optical card | |
| JPH0198140A (en) | Optical card | |
| JPS62264458A (en) | Card-shaped information recording carrier | |
| JPS605437A (en) | Optical recording medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |