JPH0231349A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPH0231349A JPH0231349A JP63182666A JP18266688A JPH0231349A JP H0231349 A JPH0231349 A JP H0231349A JP 63182666 A JP63182666 A JP 63182666A JP 18266688 A JP18266688 A JP 18266688A JP H0231349 A JPH0231349 A JP H0231349A
- Authority
- JP
- Japan
- Prior art keywords
- optical recording
- recording layer
- guide grooves
- guide groove
- substrate
- 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 abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000011800 void material Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 7
- 238000003848 UV Light-Curing Methods 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- 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、光記録媒体に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to optical recording media.
（従来の技術）
光記録媒体は、高密度記録媒体として、近年特に多（の
提案がなされている。(Prior Art) In recent years, many proposals have been made for optical recording media as high-density recording media.
従来の光記録媒体は、案内溝を有する基板の該案内溝形
成面上に記録層を形成し、他の層を介するか、または介
さないで、他の保護用シート等と貼り合わせていた０、
また他の方法では、案内溝を存する基板上に記録層を案
内溝上に形成し、スペーサを介して、空間部を残して他
の保護板等と貼り合わせていた。さらに近年、フィルム
上に記録層を形成し、実質的に空隙部のない状態で、他
のフィルムを貼り合わした光記録媒体も提案されている
。In conventional optical recording media, a recording layer is formed on the guide groove forming surface of a substrate having guide grooves, and the recording layer is bonded to another protective sheet, etc., with or without intervening another layer. ,
In another method, a recording layer is formed on a substrate having a guide groove, and the recording layer is bonded to another protective plate or the like via a spacer, leaving a space. Furthermore, in recent years, optical recording media have been proposed in which a recording layer is formed on a film and another film is bonded thereto with substantially no voids.
（発明が解決しようとする課Ｍ）
従来の光記録媒体においては、案内溝等を設けた一枚一
枚の基板に、スピンコード法、スパッタリング法等によ
り記録層を形成していたので、生産性が低くまたコスト
も高くついていた。(Problem M to be solved by the invention) In conventional optical recording media, a recording layer is formed on each substrate provided with guide grooves etc. by a spin code method, a sputtering method, etc. The performance was low and the cost was high.
さらに案内溝等の表面凹凸のある面への記録層の形成は
、種々の問題、例えば均一厚さの欠如、欠点部分の存在
等を有していた。Furthermore, the formation of a recording layer on a surface with uneven surfaces such as guide grooves has various problems, such as lack of uniform thickness and the presence of defective parts.
（課題を解決するための手段）
本発明は、ローコストで、高信頼性のかつ案内溝により
情報の光記録、光再生、あるいは光消去が可能な光記録
媒体を提供するものである。(Means for Solving the Problems) The present invention provides a low-cost, highly reliable optical recording medium in which information can be optically recorded, optically reproduced, or optically erased using a guide groove.
すなわち本発明は、光記録層に集光したレーザー光等を
照射して、該光記録層に情報ピットを形成し、情報を記
録、再生あるいは消去する光記録媒体において、光記録
層がフィルムの少な（とも片面に形成され、該光記録層
に対向して、案内溝を存する透明基板が該案内溝と光記
録層とが対向するように貼り合わせられて、かつ対向面
で該案内溝部のみが実質的に空隙部を形成していること
を特徴とする光記録媒体である。That is, the present invention provides an optical recording medium in which information is recorded, reproduced, or erased by irradiating an optical recording layer with a focused laser beam or the like to form information pits in the optical recording layer, in which the optical recording layer is a film. A transparent substrate having a guide groove formed on one side and facing the optical recording layer is bonded so that the guide groove and the optical recording layer face each other, and only the guide groove portion is formed on the opposite side. This is an optical recording medium characterized in that substantially void portions are formed.
本発明に用いる光記録層が少なくとも片面に形成される
フィルムとは、透明でも不透明でもよく、可撓性、ガス
バリヤ−性等にすぐれたものであればよい６例えば、ポ
リエチレンテレフタレート、ポリエチレンナフタレート
、ポリフェニレンリレンスルフイツト、ポリアミド等お
よびこれらを主とする共重合体のフィルムが挙げられる
。The film used in the present invention on which the optical recording layer is formed on at least one side may be transparent or opaque as long as it has excellent flexibility, gas barrier properties, etc. 6 For example, polyethylene terephthalate, polyethylene naphthalate, Examples include films of polyphenylene lylene sulfite, polyamide, etc., and copolymers mainly composed of these.
さらにこれらフィルムに対してコロナ放電処理等の表面
加工をしてもよ（、またアルミ、銅等の金属、または他
の無機物の薄膜を片面に設けたものまたは、三層の内層
に用いたものでもよい。Furthermore, these films may be subjected to surface processing such as corona discharge treatment (or may be coated with a thin film of metal such as aluminum, copper, or other inorganic material on one side, or used as the inner layer of three layers). But that's fine.
本発明に用いる光記Ｑ層としては、を機色素系を主成分
とするもの、希土類−遷移金属の非晶質合金、その低光
感応性の物質の薄膜がある。Examples of the optical Q layer used in the present invention include those mainly composed of organic dyes, amorphous rare earth-transition metal alloys, and thin films of materials with low photosensitivity.
本発明に用いる透明基板としては、ガラス、ポリメチル
メタアクリレート、ポリカーボネート等の透明性に優れ
た従来の光記録媒体に用いられているものでよ＜１．０
ｓ■程度の厚さを有するものである。The transparent substrate used in the present invention may be one that is used in conventional optical recording media with excellent transparency, such as glass, polymethyl methacrylate, or polycarbonate.
It has a thickness of about s■.
本発明において記録層の形成されたフィルムと、案内溝
を設けた透明基板とを貼り合わせるために、接着剤を用
いるが、これらの接着剤としては、特に限定されないが
、紫外線硬化樹脂がこのましい。またこの貼り合わせの
方法は、基板の案内溝形成面に接着剤を塗布して貼り合
わせるが、このとき案内溝にｔｌｉｆ剤が充填しすぎな
いようにむしろ、案内溝と案内溝の上手の部分にのみ、
接着剤を塗布される程度に塗布して後、貼り合わすこと
が必要である。In the present invention, adhesives are used to bond the film on which the recording layer is formed and the transparent substrate provided with the guide grooves, but these adhesives are not particularly limited, but ultraviolet curing resins are preferred. stomach. In addition, in this bonding method, an adhesive is applied to the guide groove forming surface of the substrate and the substrates are bonded together, but at this time, in order to avoid filling the guide groove with too much tlif agent, it is necessary to avoid filling the guide groove and the upper part of the guide groove. only,
It is necessary to apply adhesive to the desired extent and then bond them together.
本発明におけるフィルムへの光記録層の形成は、従来の
案内溝つき基板に一枚ずつ光記録層を形成することなく
、長尺の連続フィルムに、連続的に形成せしめ、後、必
要形状にしく打ち抜き等を行って）、案内溝つきの基板
と貼り合わせる方法等がある。In the present invention, the optical recording layer is formed on the film by continuously forming the optical recording layer on a long continuous film, without forming the optical recording layer one by one on a conventional substrate with guide grooves, and then shaping it into the required shape. There are methods such as properly punching out the material, etc.) and bonding it to a substrate with guide grooves.
本発明の一例の概要を第１図−１と第１図−２に示した
。第１図−１はフィルム４上に光記録層３を形成し、接
着Ｂ２により基板１と案内溝６の空隙部を残すように貼
り合わしたものである。An outline of an example of the present invention is shown in FIGS. 1-1 and 1-2. In FIG. 1-1, an optical recording layer 3 is formed on a film 4, and the film is bonded to the substrate 1 by adhesive B2 so as to leave a gap between the guide groove 6 and the substrate 1.
ｍ１図−２は、本発明の光記録媒体を用いての情報の記
録、再生あるいは消去のときの状況を示す概略である。Figure m1-2 schematically shows the situation when recording, reproducing, or erasing information using the optical recording medium of the present invention.
（発明の効果）
本発明の光記録媒体は、フィルム面に光記録層を形成す
るため、長尺フィルムに連続的に行なえ、かつフラット
な面への形成のため均一厚さの、欠点の少ない光記録層
が形成でき、低ノイズの安価な光記録媒体となる。(Effects of the Invention) Since the optical recording medium of the present invention forms an optical recording layer on the film surface, it can be continuously applied to a long film, and since it can be formed on a flat surface, it has a uniform thickness and has few defects. An optical recording layer can be formed, resulting in an inexpensive optical recording medium with low noise.
第１図−１は、本発明の光記録媒体の一例の概略図であ
り、第１図−２は、本発明の光記録媒体を用いての情報
の記録、再生あるいは消去のときの概略を示すものであ
る。
特許出願人 東洋紡績株式会社FIG. 1-1 is a schematic diagram of an example of the optical recording medium of the present invention, and FIG. 1-2 is a schematic diagram of recording, reproducing, or erasing information using the optical recording medium of the present invention. It shows. Patent applicant: Toyobo Co., Ltd.
Claims (1)
により、該光記録層に情報ピットを形成し、情報を記録
、再生あるいは消去する光記録媒体において、光記録層
がフィルムの少なくとも片面に形成され、該光記録層に
対向して、案内溝を有する透明基板が該案内溝と光記録
層とが対向するように貼り合わせられて、かつ対向面で
該案内溝部のみが実質的に空隙部を形成していることを
特徴とする光記録媒体。(1) In an optical recording medium in which information pits are formed in the optical recording layer by irradiating the optical recording layer with a focused laser beam, etc., and information is recorded, reproduced, or erased, the optical recording layer is at least one part of the film. A transparent substrate having a guide groove formed on one side and facing the optical recording layer is bonded together so that the guide groove and the optical recording layer face each other, and only the guide groove portion is substantially formed on the opposite side. An optical recording medium characterized in that a void portion is formed in the optical recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63182666A JPH0231349A (en) | 1988-07-21 | 1988-07-21 | Optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63182666A JPH0231349A (en) | 1988-07-21 | 1988-07-21 | Optical recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0231349A true JPH0231349A (en) | 1990-02-01 |
Family
ID=16122311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63182666A Pending JPH0231349A (en) | 1988-07-21 | 1988-07-21 | Optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008071405A (en) * | 2006-09-13 | 2008-03-27 | Toshiba Corp | Optical recording medium and method of manufacturing the same and optical recording and reproducing device |
| US20120067334A1 (en) * | 2009-05-11 | 2012-03-22 | Lg Electronics Inc. | Cooking appliance |
-
1988
- 1988-07-21 JP JP63182666A patent/JPH0231349A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008071405A (en) * | 2006-09-13 | 2008-03-27 | Toshiba Corp | Optical recording medium and method of manufacturing the same and optical recording and reproducing device |
| US7852537B2 (en) | 2006-09-13 | 2010-12-14 | Kabushiki Kaisha Toshiba | Optical recording medium and method of manufacturing the same |
| JP4621646B2 (en) * | 2006-09-13 | 2011-01-26 | 株式会社東芝 | Holographic data storage medium |
| US20120067334A1 (en) * | 2009-05-11 | 2012-03-22 | Lg Electronics Inc. | Cooking appliance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1187122A3 (en) | Method and apparatus for producing an optical information recording medium, and optical information recording medium | |
| KR910003611A (en) | Optical disc, its manufacturing method and reading method | |
| JP2002042379A (en) | Multilayered optical recording medium and its manufacturing method | |
| US6210609B1 (en) | Method of manufacturing optical recording medium | |
| JPH0231349A (en) | Optical recording medium | |
| US5017414A (en) | Method for manufacturing a second surface optical storage device | |
| JPH09147417A (en) | Optical recording medium and its production | |
| JP3537701B2 (en) | Optical recording medium, method for manufacturing optical recording medium, and apparatus for manufacturing optical recording medium | |
| JPH1083571A (en) | Optical information recording medium | |
| JP2532593B2 (en) | Method for manufacturing optical memory device | |
| JPH0954985A (en) | Optical disk and production of optical disk | |
| JPS63268145A (en) | Optical information carrier disk | |
| JPH01109549A (en) | Optical disk | |
| JP2893720B2 (en) | Method for manufacturing optical information recording medium | |
| JPS60127544A (en) | Production for optical information carrier disc | |
| JP2790400B2 (en) | Optical disc and method of manufacturing the same | |
| JPH01196750A (en) | Production of optical recording medium | |
| JP2551995B2 (en) | Optical memory device | |
| JPH03248341A (en) | Optical disk substrate | |
| JPH09306033A (en) | Optical disk, manufacturing device and production for the same | |
| JPH10199041A (en) | Information recording medium and method for producing recording medium having first and second recording information different from each other | |
| JPH09147420A (en) | Both-side recording disk and its production | |
| JPS61168149A (en) | Information recording disk | |
| JPH02183443A (en) | Optical recording medium | |
| JPH1186344A (en) | Optical recording medium |