JPS6113455A - Information carrier and its manufacture - Google Patents

Information carrier and its manufacture

Info

Publication number
JPS6113455A
JPS6113455A JP59134206A JP13420684A JPS6113455A JP S6113455 A JPS6113455 A JP S6113455A JP 59134206 A JP59134206 A JP 59134206A JP 13420684 A JP13420684 A JP 13420684A JP S6113455 A JPS6113455 A JP S6113455A
Authority
JP
Japan
Prior art keywords
information recording
base material
light
active layer
ultraviolet rays
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
Application number
JP59134206A
Other languages
Japanese (ja)
Other versions
JPH0422288B2 (en
Inventor
Kunihiro Matsubara
邦弘 松原
Seiji Nishino
清治 西野
Takeo Oota
太田　威夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59134206A priority Critical patent/JPS6113455A/en
Publication of JPS6113455A publication Critical patent/JPS6113455A/en
Publication of JPH0422288B2 publication Critical patent/JPH0422288B2/ja
Granted legal-status Critical Current

Links

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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To prevent separation even in a high-temperature, high-humidity atmosphere, to minimize the deterioration of a recording film, and improve the reliability by irradiating the entire groove formation surface of a disk base material in which a groove for light guidance is formed with far ultraviolet rays and providing cleaning effect. CONSTITUTION:The groove 2 for light guidance is formed in the disk base 1 made of polycarbonate resin, and the entire groove formation surface is irradiated with far ultraviolet rays 6. The ultraviolet-ray excited physically and chemically active layer 7 which is irradiated as mentioned above has effect for removing thin-film type stains and even an uneven surface layer deterioration layer, thereby obtaining an optically uniform base material surface. A recording film 3 is formed on the active layer 7 by vapor deposition or sputtering in a short time while the active layer 7 is held clean, and the entire external surface of the disk substrate 8 is covered with a protective film 4 made of ultraviolet- ray setting resin. Consequently, the surface of the base material is irradiated with far ultraviolet rays to increase greatly the adhesive strength of the recording film to the base material.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は光学的記録あるいは再生方式に使用される円盤
上の情報記録担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 disc-shaped information recording carrier used in optical recording or reproducing systems.

従来例の構成とその問題点 光学的記録再生方式においては、回転駆動される円盤状
情報記録担体（以下ディスクと呼ぶ）の光記録層に、清
報信号に対応したレーザ光を照射することにより、光記
録層に光学的な濃淡あるいは凹凸を設けて、情報の記録
・再生を行うもので数μｍの微小信号を記録することが
でき、原理的には光の波長程度の高密度記録が可能な方
式である。Conventional configuration and its problems In the optical recording and reproducing system, the optical recording layer of a rotationally driven disk-shaped information recording carrier (hereinafter referred to as a disk) is irradiated with a laser beam corresponding to a warning signal. , which records and reproduces information by providing optical shading or unevenness in the optical recording layer, and can record minute signals of several micrometers, and in principle can record at a high density comparable to the wavelength of light. It is a method.

取返では、情報化社会の中にあって、オフィスオートメ
ーションやラボラトリ−オートメーション等の合理化が
重要視されてきておシ、こうした要望に応えるものとし
て、ユーザーが自由に記録再生のできる追加記憶形ディ
スクは最適である。In the information society, rationalization of office automation, laboratory automation, etc. has become important, and in response to these demands, an additional storage type disk that allows users to freely record and play back has been developed. is optimal.

それと同時に高感度の記録媒体を始めとし、高性能な部
品材料が必要であシ、外部環境の変化による記録媒体の
劣化を生じないディスク構造が要求される。At the same time, there is a need for high-performance component materials, including a highly sensitive recording medium, and a disk structure that does not cause deterioration of the recording medium due to changes in the external environment.

ここで、従来から使われているディスクの記録膜劣化の
一例を図面とともに説明する。第１図はポリカーボネー
ト樹脂からなるディスク基材１に光案内用の溝２が設け
られており、その上に記録膜３が蒸着されている。さら
にこれらの外表面全体が紫外線硬化樹脂からなる保護膜
４で覆われている。Here, an example of the deterioration of the recording film of a conventionally used disk will be explained with reference to the drawings. In FIG. 1, a disc base material 1 made of polycarbonate resin is provided with grooves 2 for guiding light, and a recording film 3 is deposited thereon. Furthermore, the entire outer surface of these is covered with a protective film 4 made of ultraviolet curing resin.

このような構造のディスク基材１、記録膜３、保護膜４
の線膨張係数は様々の場合が多く、高温高湿な環境下に
置かれた時や、この環境と室温雰囲気とのサイクル条件
下の時には熱膨張の度合が異なるためそれぞれの境界面
で内部応力を発生することが多い。各境界面での接着力
がこの内部応力に耐えられない時は、例えば第２図ｆａ
）、（ｂ）に示されるように、ディスク基材１と記録膜
３の間、もしくは記録膜３と保−膜４との間に微小な剥
離ｓａ、ｓｂを発生することがある。実験によれば、微
小な剥離は第２図（ａ）の場合が非常に多く、これは、
ディスク基材１の表面の薄層状の汚れやディスク基材成
形時の表層変質層が原因と考えられ、洗浄液による一般
的な洗浄法では解決し難いものである。A disk base material 1, a recording film 3, and a protective film 4 having such a structure
The coefficients of linear expansion of the often occurs. If the adhesive force at each interface cannot withstand this internal stress, for example, as shown in Figure 2 fa
), (b), minute peeling sa, sb may occur between the disk base material 1 and the recording film 3 or between the recording film 3 and the protective film 4. According to experiments, the minute peeling is very often as shown in Figure 2 (a), which is due to
This problem is thought to be caused by a thin layer of dirt on the surface of the disc base material 1 or a surface deterioration layer during molding of the disc base material, and is difficult to solve with a general cleaning method using a cleaning liquid.

微小剥離は一度発生すると、その後の剥離が助長され易
く、周囲に拡大する可能性を十分もっている。これは初
期の剥離を発生させる応力と、剥離の存在しているもの
を押し開く応力とではメカニズムが異なシ、後者の方が
よシ小さい力で発生させることができるからである。Once micro-peeling occurs, subsequent peeling is likely to be promoted, and there is a good possibility that it will spread to the surrounding area. This is because the stress that causes initial peeling and the stress that forces apart existing peeling have different mechanisms, and the latter can be generated with a much smaller force.

このような微小剥離は、初期は真空状態であるため、デ
ィスクの外気に触れている部分との通気が生じると、−
瞬にして剥離部内に外気を取シ入れることになる。した
がって、外気の環境が高温高湿な条件下であると、湿度
の影響を受は易い材料の場合には、酸化をし劣化が促進
されることが考えられる。また剥離部の外気との通気が
瞬時に発生しなくても、一度剥離を生じた箇所は接着力
が弱まっておシ、その後ディスク基材や保護膜を徐々に
浸透してきた水分によって影響を受ける可能性は十分あ
り記録膜の劣化はまぬかれない。This type of micro-delamination is initially in a vacuum state, so if ventilation occurs with the part of the disc that is exposed to the outside air, -
Outside air will be drawn into the peeled part in an instant. Therefore, if the outside environment is high temperature and humidity, materials that are easily affected by humidity may be oxidized and deterioration may be accelerated. In addition, even if ventilation with the outside air does not occur instantaneously at the peeled area, the adhesive strength weakens in the area where peeling occurs, and is subsequently affected by moisture that has gradually penetrated the disc base material and protective film. There is a good chance that the recording film will deteriorate.

以上は、記録膜が比較的透水性の小さいポリカーボネー
ト樹脂やこれと等価な保護膜で外気から迦断保譲されて
いても、剥離を生じた場合にはその効果は消滅し、ディ
スクの信頼性の点で重大な問題となる。もし、剥離の状
態が拡大せず微小剥離のままでめったとしても、記録、
再生時のレーザ光の照射に対してはその影響をまぬかれ
ず、特性の低下からディスクとしての信頼性を失うこと
になる。The above shows that even if the recording film is protected from the outside air using polycarbonate resin or an equivalent protective film, which has relatively low water permeability, if peeling occurs, the effect disappears, and the reliability of the disc decreases. This is a serious problem. Even if the state of peeling does not expand and remains as a minute peel, it will not be possible to record,
The influence of laser light irradiation during reproduction cannot be avoided, and the reliability of the disc will be lost due to the deterioration of its characteristics.

発明の目的 本発明は以上のような欠点を除去し、高温高湿り磯倍Ｔ
に置かれても剥離を廃止せず、記録膜の劣化を最小限に
押さえる信頼性の高いｔｒｔ報記録担体とその製造方法
を提供するものである。Purpose of the Invention The present invention eliminates the above-mentioned drawbacks and
The present invention provides a highly reliable TRT information record carrier that does not eliminate peeling and minimizes deterioration of the recording film even when placed in the environment, and a method for manufacturing the same.

発明の構成 本発明は光案内用の溝を形成したディスク基材の溝形成
面全体に、遠紫外線を照射して洗浄効果をもたせ、光記
録膜との接着性を強化するものである。これにより、光
記録膜のディスク基材からの剥離を防止するとともに、
寿命の長い信頼性の高いディスクの製作を可能にするも
のである。・実施例の説明　。Structure of the Invention The present invention provides a cleaning effect by irradiating the entire grooved surface of a disk base material with grooves for light guide with deep ultraviolet rays, thereby strengthening the adhesiveness with the optical recording film. This prevents the optical recording film from peeling off from the disc base material, and
This makes it possible to manufacture highly reliable disks with a long life. -Explanation of examples.

以下、本発明の実施例を図面とともに説明する。Embodiments of the present invention will be described below with reference to the drawings.

第３図において、第１図、第２図と同一物は同一番号を
付して説明する。第３図において、ポリカーボネート樹
脂からなるディスク基材１に光案内用の溝２が設けてあ
り、この溝形成面全体に対して第３図のととく遠紫外線
６を照射する。こうして照射された紫外線励起物理的、
化学的活性層７は、薄膜状の汚れや不均一な表層変質層
も除去する効果があシ、光学的に均一な基材表面か得ら
れる。In FIG. 3, the same parts as those in FIGS. 1 and 2 will be described with the same reference numerals. In FIG. 3, a disc base material 1 made of polycarbonate resin is provided with grooves 2 for guiding light, and the entire groove-formed surface is irradiated with deep ultraviolet rays 6 as shown in FIG. The irradiated UV-excited physical,
The chemically active layer 7 has the effect of removing thin film-like dirt and non-uniform surface deterioration layers, and provides an optically uniform substrate surface.

紫外線励起物理的、化学的活性層７を形成後は屑浄な状
態を保ちながら、短時間のうちに第４図のごとく、活性
層７の上に記録膜３を蒸着法またはスパッタ法により形
成する。さらにこれらのディスク基板８の全外表面を紫
外線硬化樹脂からなる保護膜４で傑っている。After forming the ultraviolet-excited physically and chemically active layer 7, a recording film 3 is formed on the active layer 7 by vapor deposition or sputtering within a short period of time while keeping it in a clean state, as shown in FIG. do. Furthermore, the entire outer surface of these disk substrates 8 is covered with a protective film 4 made of ultraviolet curing resin.

このように遠紫外線を基材表面に照射したものは、記録
膜の基材に対する接着力が非常に強化され、例えば７０
°Ｃ９０％Ｒ，Ｈ，のような苛酷な環境下での寿命試験
をした場合でも、微小な剥離の発生は全くなく、寿命の
点からしても、処理しない基板の数倍の寿命をもつとい
う結果が得られたこの原因の一つとしては遠紫外線の照
射によってオゾンが発生し、この影響を受けて基材表面
が酸化をされ−Ｃ極性基が生じ、接着力が強化されるこ
とが考えられる。１だ酸素プラズマによる基材表ｍｌの
改質処理の場合のように極めて微小な凹凸が発生するこ
とによって接着力が強化されることも一つの原因と考え
られる。こうした現象は遠紫外線励起による物理的、化
学的に活性化された層が基材表面に発生するということ
もできる。同時に、薄層状の汚れや不均一な表層変質層
を均一化する点においては基材表面の洗浄効果をもつこ
とも考えられる。When the surface of the substrate is irradiated with far ultraviolet rays in this way, the adhesion of the recording film to the substrate is greatly strengthened, for example,
Even when subjected to life tests under harsh environments such as °C, 90% R, H, there is no occurrence of minute peeling, and the lifespan is several times longer than that of untreated substrates. One of the reasons for this result is that ozone is generated by irradiation with far ultraviolet rays, which oxidizes the surface of the base material and generates -C polar groups, which strengthens the adhesive strength. Conceivable. One possible cause is that the adhesive strength is strengthened by the generation of extremely minute irregularities, as in the case of modification treatment of the base material surface ml using oxygen plasma. This phenomenon can also be said to be caused by the generation of a physically and chemically activated layer on the surface of the substrate due to excitation of deep ultraviolet rays. At the same time, it is also considered to have a cleaning effect on the surface of the substrate in terms of making thin layers of dirt and uneven surface deterioration layers uniform.

微小な凹凸を発生した場合のＣ／へ、ｈＦ振幅等の再生
信号への影響はほとんどなく、遠紫外線の照射条件の選
択によって最適値を選ぶことが可能である。When minute irregularities occur, there is almost no effect on the reproduction signal such as C/ and hF amplitude, and it is possible to select the optimum value by selecting the far ultraviolet irradiation conditions.

、実験においては、遠紫外線の波長は２５３７八を主波
長とした１８４９人を含む混合波を用い、照射パワーと
しては２　、６１　ｍＷ／ｃＶ稙程度を使用した。In the experiment, a mixed wave including 1849 people with a wavelength of 25378 as the main wavelength of far ultraviolet rays was used, and the irradiation power was about 2.61 mW/cV.

このときの照射時間は５分〜３０分を実験で行ったが、
いずれの場合も同程度の効果か得られた。The irradiation time at this time was 5 minutes to 30 minutes in the experiment.
In both cases, similar effects were obtained.

厳密に言えば、１５分程度のものが比較的良い結果であ
ったが、量産化を考えると照射時間は短い方が好ましい
。逆に長すぎる場合は、基材表面の変質化が進行するた
め、ディスク化した後のＣ／ＩＩＱの低下や、ドロップ
アウトの増加等膜特性に影響を及ぼすことが十分考えら
れる。Strictly speaking, an irradiation time of about 15 minutes gave relatively good results, but considering mass production, a shorter irradiation time is preferable. On the other hand, if the length is too long, the surface of the base material will deteriorate, which may affect the film properties such as a decrease in C/IIQ and an increase in dropout after forming into a disk.

遠紫外線の照射をした基材の表面には予め形成しである
光案内用の溝が存在するが、この溝の深さは７００Ａ前
後であシ、照射によってこのｉさに大きく影響を与える
程度のものであってはならない。しかしながら、本実施
例の条件下で処理を施したものは、溝のトラッキングや
、フォーカスの制御、記録膜の反射率、ドロップアウト
等に特に影響を与えるものではないことが実験的に確か
められた。There are pre-formed grooves for guiding light on the surface of the base material irradiated with far ultraviolet rays, but the depth of these grooves is around 700A, and the irradiation does not significantly affect this i. It must not belong to However, it was experimentally confirmed that the treatment under the conditions of this example did not particularly affect groove tracking, focus control, recording film reflectance, dropout, etc. .

次に本発明の第２の実施例を図面とともに説明する。第
６図において、光案内用の溝２が形成されたポリカーボ
ネート樹脂からなるディスク基材１の辱形成面に、遠紫
外線を照射して遠紫外線励起物理的、化学的活性層７を
設け、その上に記録膜３を蒸着したものを第１のディス
ク基板８とする。これと同様の光案内用の＠２８．遠紫
外線励起物理的、化学的活性層７ａをもつディスク基材
１ａに記録膜３ａを蒸着した第２のディスク基板８ａが
接着剤９によって全面接合されている。Next, a second embodiment of the present invention will be described with reference to the drawings. In FIG. 6, a far ultraviolet-excited physically and chemically active layer 7 is provided by irradiating far ultraviolet rays on the surface of a disc base material 1 made of polycarbonate resin in which light guiding grooves 2 are formed. The first disk substrate 8 has the recording film 3 deposited thereon. @28 for light guide similar to this. A second disk substrate 8a having a recording film 3a deposited thereon is bonded over its entire surface with an adhesive 9 to a disk substrate 1a having a deep ultraviolet-excited physically and chemically active layer 7a.

このような構成から゛なるディスクは、記録膜が；４奈
を透過しないため接着剤として光硬化性の樹脂は使えな
いが、常温硬化型あるいは熱硬化型の接着剤や、ホット
メルト系の接着剤を用いれば特に間組はない。この実施
例においても、記録膜はいずれも遠紫外線で表面処理さ
れた面に蒸着されているため、接着力が強化され、高幌
高湿な環境に隨かれた場合や室温とのサイクル条件下で
も６己録膜の剥離は発生せず、寿命の長い１ゴ頼性の商
いディスクが得られた。For discs with such a configuration, photocurable resins cannot be used as adhesives because the recording film does not pass through the film, but room-temperature-curing or thermosetting adhesives or hot-melt adhesives If you use the agent, there is no particular problem. In this example as well, the recording film is deposited on a surface treated with far ultraviolet rays, so the adhesive strength is strengthened and it can be used even under cycling conditions such as high humidity and room temperature. However, no peeling of the 6-layer recording film occurred, and a reliable disc with a long life was obtained.

また遠紫外線による表面処理法は一度に多量の基材を処
理することが可能で、装置としても市価なものではなく
、コスト的にも有利な量産性に適した方法といえる。In addition, the surface treatment method using deep ultraviolet rays can treat a large amount of substrates at once, and the equipment is not commercially expensive, so it can be said to be a cost-effective method suitable for mass production.

以上の構成による情報記録担体は、その材質か有機高分
子からなる場合に特に有効であり、その−例としてはポ
リカーボネート、アクリル樹脂（ＰＭＭＡ）の他に、塩
化ビニル、ポリスチレン。The information recording carrier having the above structure is particularly effective when the material is made of an organic polymer, examples of which include polycarbonate, acrylic resin (PMMA), vinyl chloride, and polystyrene.

ポリエチレン、ポリエステル、アセテート等かある。There are polyethylene, polyester, acetate, etc.

なお、本発明における光記録膜の材料は、レーザー九の
照射によ）光吸収係数あるいは光吸収係数と屈折率の両
方が変化するものが必要であり、その−例として、Ｔｏ
ｏｘ（ｘ中１−０　）　（Ｔ　ｅｒ２とＴｅとの混合物
）を主成分とする薄膜を設けたものがある。The material of the optical recording film in the present invention needs to be one whose light absorption coefficient (or both the light absorption coefficient and refractive index) changes when irradiated with a laser beam.
There is one provided with a thin film mainly composed of ox (1-0 in x) (a mixture of Ter2 and Te).

これらのＳ膜としては、Ｇｅ、６Ｔｅ８１Ｓｂ２Ｓ２゜
Ａｓ２Ｓ３等のアモルファス薄膜が使われる。As these S films, amorphous thin films such as Ge and 6Te81Sb2S2°As2S3 are used.

発明の効果 以上のように本発明によれば、簡単な構成と製造方法に
より、外部環境の変化に対しても記録膜の剥離がなく、
安価で長期間画像品質の保証ができる信頼性の高い情報
記録担体を得るために大きな効果を有するものである。Effects of the Invention As described above, according to the present invention, due to the simple structure and manufacturing method, the recording film does not peel off even when the external environment changes.
This is highly effective in obtaining a highly reliable information recording carrier that is inexpensive and can guarantee image quality for a long period of time.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例における情報記録担体の断正面図、第２
図（ａ）　、　（ｂ）は従来例における情報記録担体が
剥離を発生した状態を示す断正面図、第３図は本発明の
第１の実施例の製造方法を示す説明図、第４図は本発明
の第」の実施例における情報記録担体の断正面図、第６
図は本発明の第２の実施例における情報記録担体の断正
面図である。 １・・・・・・ディスク基材、２・・・・・・光案内用
の溝、３・・・・・・記録膜、７・・・・・・洗浄面。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 第３図 １−さ、 〇 二４図 ５図Figure 1 is a cross-sectional front view of an information recording carrier in a conventional example;
Figures (a) and (b) are sectional front views showing a state in which an information recording carrier in a conventional example has peeled off, Figure 3 is an explanatory diagram showing a manufacturing method of the first embodiment of the present invention, and Figure 4. 6 is a sectional front view of the information recording carrier in the sixth embodiment of the present invention.
The figure is a sectional front view of an information recording carrier in a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Disk base material, 2...Groove for light guide, 3...Recording film, 7...Cleaning surface. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 1-Sa, 〇24 Figure 5

Claims (5)

【特許請求の範囲】[Claims] （１）光案内用の溝形成面および光吸収性の半透明膜か
らなる情報記録面を有する樹脂基材の前記溝形成面に遠
紫外線励起物理的、化学的活性層を設け、その上に酸素
を含む記録層を設けた情報記録担体。(1) A far ultraviolet excited physically and chemically active layer is provided on the grooved surface of a resin base material having a grooved surface for light guiding and an information recording surface made of a light-absorbing semitransparent film, and a physically and chemically active layer excited by deep ultraviolet rays is provided on the grooved surface. An information recording carrier provided with a recording layer containing oxygen. （２）情報記録面として、レーザー光の照射により光吸
収係数あるいは光吸収係数と屈折率の両方が変化する材
料を用いた特許請求の範囲第１項記載の情報記録担体。(2) The information recording carrier according to claim 1, wherein the information recording surface is made of a material whose light absorption coefficient or both the light absorption coefficient and the refractive index change upon irradiation with laser light. （３）少くとも一方に光案内用の溝形成面とこの溝形成
面に設けた遠紫外線励起物理的、化学的活性層と光吸収
性の半透明膜からなる情報記録面を有する２つの樹脂基
材を設け、前記情報記録面を内側にして前記両樹脂基材
を全面接合した情報記録担体。(3) Two resins each having at least one grooved surface for guiding light and an information recording surface consisting of a deep ultraviolet-excited physically and chemically active layer and a light-absorbing translucent film provided on this grooved surface. An information recording carrier in which a base material is provided and both of the resin base materials are fully bonded with the information recording surface facing inside. （４）情報記録面として、レーザー光の照射により光吸
収係数あるいは光吸収係数と屈折率の両方が変化する材
料を用いた特許請求の範囲第３項記載の情報記録担体。(4) The information recording carrier according to claim 3, wherein the information recording surface is made of a material whose light absorption coefficient or both the light absorption coefficient and the refractive index change upon irradiation with laser light. （５）光案内用の溝形成面を有するディスク基板を設け
、このディスク基板の前記溝形成面に遠紫外線を照射し
た後に、その上に半透明膜を設けることを特徴とする情
報記録担体の製造方法。(5) An information recording carrier characterized in that a disk substrate having a grooved surface for guiding light is provided, and after the grooved surface of the disk substrate is irradiated with deep ultraviolet rays, a semitransparent film is provided thereon. Production method.
JP59134206A 1984-06-28 1984-06-28 Information carrier and its manufacture Granted JPS6113455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59134206A JPS6113455A (en) 1984-06-28 1984-06-28 Information carrier and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59134206A JPS6113455A (en) 1984-06-28 1984-06-28 Information carrier and its manufacture

Publications (2)

Publication Number Publication Date
JPS6113455A true JPS6113455A (en) 1986-01-21
JPH0422288B2 JPH0422288B2 (en) 1992-04-16

Family

ID=15122896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59134206A Granted JPS6113455A (en) 1984-06-28 1984-06-28 Information carrier and its manufacture

Country Status (1)

Country Link
JP (1) JPS6113455A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01271935A (en) * 1988-04-21 1989-10-31 Nec Home Electron Ltd Optical disk and its production
US5707561A (en) * 1996-07-18 1998-01-13 Walbro Corporation Tamper resistant carburetor needle valve adjustment limiter
JP2010034075A (en) * 2009-11-09 2010-02-12 Kyocera Corp Method of assembling optical element assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01271935A (en) * 1988-04-21 1989-10-31 Nec Home Electron Ltd Optical disk and its production
US5707561A (en) * 1996-07-18 1998-01-13 Walbro Corporation Tamper resistant carburetor needle valve adjustment limiter
JP2010034075A (en) * 2009-11-09 2010-02-12 Kyocera Corp Method of assembling optical element assembly

Also Published As

Publication number Publication date
JPH0422288B2 (en) 1992-04-16

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