JPS59221845A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS59221845A
JPS59221845A JP58095086A JP9508683A JPS59221845A JP S59221845 A JPS59221845 A JP S59221845A JP 58095086 A JP58095086 A JP 58095086A JP 9508683 A JP9508683 A JP 9508683A JP S59221845 A JPS59221845 A JP S59221845A
Authority
JP
Japan
Prior art keywords
recording layer
substrate
optical information
information recording
protection plate
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
Application number
JP58095086A
Other languages
Japanese (ja)
Inventor
Yasuo Sawada
康雄 沢田
Masaaki Nomura
正明 野村
Hiroyuki Okamoto
弘之 岡本
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP58095086A priority Critical patent/JPS59221845A/en
Publication of JPS59221845A publication Critical patent/JPS59221845A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To seal up an optical information recording layer without an adhesive to prevent corrosion of the recording layer by covering flange parts with a reinforcing member after making flange parts of a substrate provided with the recording layer and a protection plate, which has a recessed part where the recording layer is stored, thin to fix thermally these substrate and protection plate. CONSTITUTION:A substrate 1 where a flange part 1a is made very thinner than the other parts is formed with transparent plastics. An optical information recording layer 2 consisting of a metal, coloring matters, etc. is formed on the substrate 1. Meanwhile, a protection plate 3 where a flange part 3a is made thin similarly to the substrate 1 and a recessed part 4 where the recording layer 2 should be stored is provided is formed with transparent plastics. Flange parts 1a and 3a of the substrate 1 and the protection plate 3 are melted and fixed by ultrasonic heating or the like, and at this time, the recording layer 2 is sealed up without degrading the recording layer by heat because of thinness of flanges. A slight space 5 is left in the recessed part 4, and an inert gas is charged into this space or the space is evacuated to prevent corrosion and oxidation of the layer 2. A reinforcing member 6 is fixed to flange parts with an adhesive or the like. Thus, a high-durability optical information recording medium is obtained.

Description

【発明の詳細な説明】 技術分野 本発明は密閉構造を有する光情報記録媒体に関する。さ
らに詳しくは、本発明は接着剤の使用なしに記録層を密
封した光情報記録媒体に関する。
DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an optical information recording medium having a sealed structure. More specifically, the present invention relates to an optical information recording medium whose recording layer is sealed without the use of adhesives.

鵞孝U死 従来、光デイスク媒体において記録層を機械的損傷と化
学的作用による特性劣化から保護する目的および基板の
吸水によるそりを防止する目的で記録媒体を接着剤を用
いて密閉構造にすることが行なわれている。しかしなが
ら、接着剤は記録層を腐食、酸化させる場合が多くまた
接着剤が記録層に直接接触していなくても接着部分より
発生するガスは記録層に悪影響を与えるので、接着剤の
選択が困離である。
Traditionally, in optical disk media, recording media have been made into a sealed structure using adhesive to protect the recording layer from mechanical damage and deterioration of characteristics due to chemical effects, and to prevent warping due to water absorption of the substrate. things are being done. However, adhesives often corrode and oxidize the recording layer, and even if the adhesive is not in direct contact with the recording layer, the gas generated from the bonded area can have an adverse effect on the recording layer, making it difficult to select an adhesive. It's far away.

堕 本発明は上記現状に鑑みてなされたものであって、その
目的は接着剤を使用せずに記録層を密封できる構造を有
する光情報記録媒体を提供することである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned current situation, and its object is to provide an optical information recording medium having a structure in which a recording layer can be sealed without using an adhesive.

ハ 上記目的を達成するために、本発明は7ランシ゛付す保
護板と7ランジ付き基板とを設けそしてそれぞれの7ラ
ンジを熱融着させることにある。すなわち、本発明の光
情報記録媒体は、肉厚の薄い7ランジ部分を有するプラ
スチック基板と、該基板の上に設けられた記録層と、肉
厚の薄い7ランノ部分を有しかつ前記記録層を受は入れ
る部分を有するプラスチック保護板とからなり、さらに
前記基板と前記保護板とがそれぞれの7ランノ部分で熱
融着されて密閉構造を形成し、しかも熱融着されたフラ
ンン部分が補強部材で覆われているものである。
C. In order to achieve the above object, the present invention is to provide a protection plate to which seven langues are attached and a substrate with seven langues, and to heat-seal each of the seven langues. That is, the optical information recording medium of the present invention includes a plastic substrate having seven thin-walled rung portions, a recording layer provided on the substrate, and a plastic substrate having seven thin-walled rung portions and the recording layer. The base plate and the protective plate are heat-sealed at their respective 7 run parts to form a sealed structure, and the heat-sealed flan parts are reinforced. It is covered with parts.

次に、図面について本発明の光情報記録媒体の構成例を
説明する。
Next, a configuration example of the optical information recording medium of the present invention will be explained with reference to the drawings.

基板1は透明なプラスチックで形成されそして基板の7
ランノ部分1aは他の部分の厚さより極めて薄く加工さ
れている。また、基板1の上には記録層2が設けられて
いる。この記録層としては光情報記録媒体の記録部材と
して知られているものならすべて使用でき特定のものに
限定されない。その代表的な例として金属、半金属およ
び色素層をあげることがでとる。保護板3は基板と同様
に加工された7ランノ部分3aを有しかつ基板上の記録
層を受は入れる部分4を有する。この部分4の大軽さは
記録層2全体を覆う程度かあるいは多少の空隙5を残し
てもよい。基板1と保護板3はそれぞれの7ランノ部分
1a、3a1.:おいて熱融着(例えば、超音波加熱に
より)されている。この際、基板と保i板は7ランノ部
分が飢の部分より極めて薄くなっているため1こ熱の記
録層への影響はほとんどない。また、熱融着を効果的に
行うために保護板は基板と同じ材質であることか肝要で
ある。
The substrate 1 is made of transparent plastic and the substrate 7
The runno portion 1a is processed to be extremely thinner than the other portions. Further, a recording layer 2 is provided on the substrate 1. As this recording layer, any known recording member for optical information recording media can be used, and the recording layer is not limited to a specific one. Typical examples include metals, semimetals, and dye layers. The protection plate 3 has a seven-run portion 3a processed in the same manner as the substrate, and has a portion 4 for receiving the recording layer on the substrate. This portion 4 may be light enough to cover the entire recording layer 2, or may leave some gaps 5. The substrate 1 and the protection plate 3 have seven run portions 1a, 3a1. : Heat fused (for example, by ultrasonic heating). At this time, since the 7-run part of the substrate and the insulating plate is much thinner than the 7-run part, the 1-run heat has almost no effect on the recording layer. Furthermore, in order to effectively perform thermal fusion, it is important that the protective plate be made of the same material as the substrate.

熱融着された7ランノ部分は全体の厚さか比較的薄いこ
とからその機械的強度を補強する目的でその周囲に補強
部材6を配設する。補強部材は例えば接着剤を用いて固
定することかでとる。
Since the heat-sealed 7-run part has a relatively thin overall thickness, a reinforcing member 6 is provided around it in order to reinforce its mechanical strength. The reinforcing member may be fixed using adhesive, for example.

なお、記録層の種類によっては基板と保護板の接合を真
空または不活性ガス中で行ないさらに空隙5を真空にす
るかそれに不活性ガスを充」眞して記録層の腐食または
酸化を防ぐように載る。
Depending on the type of recording layer, the substrate and the protective plate may be bonded in a vacuum or an inert gas, and the gap 5 may be evacuated or filled with an inert gas to prevent corrosion or oxidation of the recording layer. Published in

匁港 上述のようにして構成された本発明の光情報記録媒体は
熱融着により密閉構造とされるので接着剤の影響による
記録層の腐食および酸化等を防止できる
Since the optical information recording medium of the present invention constructed as described above has a sealed structure by heat fusion, corrosion and oxidation of the recording layer due to the influence of the adhesive can be prevented.

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

図は本発明の光情報記録媒体の一態様を示す模式図であ
る。 1・・・基板、1a・・・7ランノ部分、2・・・記録
層、3・・・保護板、3a・・・7ランノ部分、4・・
・記録層受は入れ部分、5・・・空隙、6・・・補強部
材。
The figure is a schematic diagram showing one embodiment of the optical information recording medium of the present invention. DESCRIPTION OF SYMBOLS 1... Substrate, 1a...7 run part, 2... Recording layer, 3... Protective plate, 3a...7 run part, 4...
- The recording layer holder is a receiving part, 5... air gap, 6... reinforcing member.

Claims (1)

【特許請求の範囲】[Claims] 肉厚の薄い7ランジ部分を有するプラスチック基板と、
該基板の上に設けられた記録層と、肉厚の薄い7ランジ
部分を有しかつ前記記録層を受は入れる部分を有するプ
ラスチック保護板とからなり、さらに前記基板と前記保
護板とがそれぞれの7ランジ部分で熱融着されて密閉構
造を形成し、1.かも熱融着された7ランジ部分が補強
部祠で覆われていることを特徴とする、光情報記録媒体
a plastic substrate having seven thin-walled lunge portions;
It consists of a recording layer provided on the substrate, and a plastic protection plate having seven thin-walled flange portions and a portion for receiving the recording layer, and further, the substrate and the protection plate each include: The seven flange portions are heat-sealed to form a sealed structure; 1. An optical information recording medium characterized in that a heat-sealed seven-lunge portion is covered with a reinforcing portion.
JP58095086A 1983-05-31 1983-05-31 Optical information recording medium Pending JPS59221845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58095086A JPS59221845A (en) 1983-05-31 1983-05-31 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58095086A JPS59221845A (en) 1983-05-31 1983-05-31 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS59221845A true JPS59221845A (en) 1984-12-13

Family

ID=14128121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58095086A Pending JPS59221845A (en) 1983-05-31 1983-05-31 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS59221845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6915557B2 (en) 2001-08-23 2005-07-12 Matsushita Electric Industrial Co., Ltd. Method of assembling rotor structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6915557B2 (en) 2001-08-23 2005-07-12 Matsushita Electric Industrial Co., Ltd. Method of assembling rotor structure

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