JPS6180535A - 光学式情報記録担体 - Google Patents

光学式情報記録担体

Info

Publication number
JPS6180535A
JPS6180535A JP59202556A JP20255684A JPS6180535A JP S6180535 A JPS6180535 A JP S6180535A JP 59202556 A JP59202556 A JP 59202556A JP 20255684 A JP20255684 A JP 20255684A JP S6180535 A JPS6180535 A JP S6180535A
Authority
JP
Japan
Prior art keywords
substrates
substrate
annular
signal recording
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.)
Pending
Application number
JP59202556A
Other languages
English (en)
Inventor
Toshikazu Yoshino
吉野　俊和
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP59202556A priority Critical patent/JPS6180535A/ja
Publication of JPS6180535A publication Critical patent/JPS6180535A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3024—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being non-integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/088—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using several cooperating sonotrodes, i.e. interacting with each other, e.g. for realising the same joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7808—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots
    • B29C65/7811—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots for centring purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 技術分野 本発明は光学式情報記録担体に関し、特に内部の信号記
録層に面して空間が設けられた光学式情報記録担体に関
する。
背景技術 光学式情報記録担体、例えばＤ　ＲＡＷ（Ｄ　１ｒｅｃ
ｔＲｅａｄ　Ａｆ　ｔｅｒＷｒ　ｉ　ｔｅ　）ディスク
の場合、多数の微細なピットとして情報が記録されるた
め、ピットが形成された層すなわち信号記録層の保護が
重要である。このため、少なくとも一方が信号記録層を
有する一対の円形基板を該信号記録層が内側となるよう
に対向して結合せしめた形式のものが開発されている。
第１図に既に開発されたＤＲＡＷディスクが示されてい
る。
図示されるように、樹脂などからなる一対の円形基板１
及び２が対向せられてお）、両基板の内１ｊ１］には信
号記録層３及び４が各々形成されている。
両基板１及び２０対向面間であって両基板の外周部及び
内周部に環状のスペーサ５及び６が設けられ、該両スペ
ーサと基板ｌ及び２は例えば紫外線硬化型接着剤によっ
て結合せしめられている。すなわち、基板１及び２は空
間７を以て離隔せられているのである。
このように構成されたＤＲＡＷディスクにおいては信号
記録層３及び４の範囲を広くするためにスペーサ５及び
６の幅寸法Ｂα、Ｂｂは小さくされ、故に該両スベー丈
と基板ｌ及び２の接着面積も少ない。このため、基板ｌ
及び２が熱あるいは湿気により膨張した場合、接着部分
が剥離してしまうという問題があった。また、接着剤が
その活性により発生するガスによって信号記録層３及び
４が侵されるということも起きていた。
発明の概要 本発明は上記した点に鑑みてなされたものであって、そ
の目的とするところは温度及び湿度が高い等、如伺なる
悪環境下にあっても円形基板とスペーサが剥離すること
がない光学式情報記録担体を提供することである。
本発明による光学式情報記録担体は、少なくとも一方が
信号記録層を有する一対の円形基板と、該信号記録層が
内側となるように対向すべく該基板の外周部及び内周部
を各々担持する一対の環状スペーサとを含み、該環状ス
ペーサ及び上記基板のうち少なくとも一方の対向面には
該環状スペーサの全周に亘る連続した突起が一体に形成
され、該突起と他方の対向面が超音波振動により融着せ
しめられていることを特徴としている。
また、本発明による光学式情報記録担体は、上記基板の
外周部及び内周部であって該基板、上記環状スペーサ及
び突起によって形成される凹部内に接着剤が充填されて
いることを特徴としている。
以下、本発明の実施例としてのＤＲＡＷディスクを第２
図及び第３図を参照しつつ説明する。
第２図に示されるように、当該ＤＲＡＷディスクは樹脂
などからなる一対の円形基板１１及び１２を有している
。両基板１１及び１２は対向せしめられており、各基板
の内側には信号記録層１３゜１４が夫々設けられている
。この信号記録層１３及び１４は微細なピット（へこみ
）として例えば音声信号を記録したものである。両基板
１１及び１２はその外周部及び内周部において一対の環
状スペーサ１５及び１６によって担持されており、これ
によって、基板１１と１２の間に空間１７が形成されて
いる。
各環状スペーサ１５及び１６の両主面、即ち、基板１１
及び１２との対向面には該各環状スペーサの全周に亘る
連続した突起１８．１９が一体に形成されてお）、該各
突起と基板ｊ１　、１２とは融着せしめられている。第
３図は融着前の状態を示すものであるが、融着前の突起
１８．１９の断面形状は略三角形となっており、これを
上下２台の超音波融着機２１及び２２にて融着せしめる
のである。
上方の超音波融着機２１は電源２３により駆動される超
音波振動子２４を備え、該超音波振動子から発せられる
超音波振動をブースタ２５及び振動増幅体２６を介して
伝達し、且つエアシリンダ機ｇ２７にて加圧して融着せ
しめるのでちる。下方の超音波融着機２２もこの超音波
融着機２１と同様に構成されている。但し、下方の超音
波融着機２２が有する振動増幅体２９には、融着される
各部材に形成され且つディスクセンタ孔となる孔に示合
して該各部材を融着時に位置決めするポール部３０が形
成されている。また、上方の超音波融着機２１が有する
振動増幅体２６にはこのポール部３０が挿入される凹部
３１が設けられている。
第２図に示されるように、円形基板１１及び１２の外周
部及び内周部であって、該基板、環状スペーサ１５．１
６及び突起１８．１９によって形成される凹部内には紫
外線硬化型の接着剤３２が充填されている。この接着剤
３２は上記した融着作業が完了した直後に毛細管現象を
利用して流し込まれ、且つ、紫外線照射にて硬化せしめ
られたものである。
尚、当該ＤＲＡＷディスクにおいては突起１８゜１９が
環状スペーサ１５及び１６のみに一体成形されているが
、この突起は円形基板１１及び１２に形成してもよい。
また、当該実施例では一対の円形基板１１．１２並びに
環状スペーサ１５及び１６を一度に融着する場合を示し
たが、まず環状スペーサ１５．１６と下方の円形基板１
２を融着せしめ、然る後、これに上方の円形基板１１を
融着させるというように、融着作業を例えば２工程に分
けることも出来る。
発明の効果 以上詳述した如く、本発明による光学式情報記録担体に
おいては少なくとも一方が信号記録層を有する一対の円
形基板と、該信号記録層が内側となるように対向すべく
該両基板の外周部及び内周部を各々担持する一対の環状
スペーサとを含み、該環状スペーサ及び基板のうち少な
くとも一方の対向面には環状スペーサの全周に亘る連続
した突起が一体に形成され、該突起と他方の対向面が超
音波振動により融着せしめられている。このように、円
形基板と環状スペーサの結合を融着によりなしたことに
よって両者は部分的に一体となり、基板が熱あるいは湿
気にニジ膨張したり、あるいは情報記録担体を床に落と
すことなどによシ大きな外力が加わっても円形基板と環
状スペーサが剥離することがないのである。
また、本発明による光学式情報記録担体においては上記
円形基板の外周部及び内周部であって該基板、上記環状
スペーサ及び突起によって形成される凹部内に接着剤が
充填されている。従って、円形基板と環状スペーサの結
合が更に堅固になるのである。また、該接着剤の活性に
より発生するガスが光学式情報記録担体内の空間に入り
込もうとしても上記突起により阻止されるので、該ガス
によって信号記録層が侵されることもないのである０
【図面の簡単な説明】
第１図は既に開発された光学式情報記録担体を説明する
ための図、第２図は本発明に係るＤ　ＲＡＷディスクの
縦断面図、第３図は融着加工前の各部材と超音波融着機
を示す図である。 主要部分の符号の説明 １１．１２　・・・・・・円形基板 １３．１４　・・・・・・信号記録層 １５．１６・・・・・・環状スペーサ １８．１９　・・・・・・突起

Claims (2)

    【特許請求の範囲】
  1. （１）少なくとも一方が信号記録層を有する一対の円形
    基板と、前記信号記録層が内側となるように対向すべく
    前記基板の外周部及び内周部を各々担持する一対の環状
    スペーサとを含み、前記環状スペーサ及び基板のうち少
    なくとも一方の対向面には前記環状スペーサの全周に亘
    る連続した突起が一体に形成され、前記突起と他方の対
    向面が超音波振動により融着せしめられていることを特
    徴とする光学式情報記録担体。
  2. （２）少なくとも一方が信号記録層を有する一対の円形
    基板と、前記信号記録層が内側となるように対向すべく
    前記基板の外周部及び内周部を各々担持する一対の環状
    スペーサとを含み、前記環状スペーサ及び基板のうち少
    なくとも一方の対向面には前記環状スペーサの全周に亘
    る連続した突起が一体に形成され、前記突起と他方の対
    向面が超音波振動により融着せしめられ、前記基板の外
    周部及び内周部であつて前記基板、環状スペーサ及び突
    起によつて形成される凹部内には接着剤が充填されてい
    ることを特徴とする光学式情報記録担体。
JP59202556A 1984-09-27 1984-09-27 光学式情報記録担体 Pending JPS6180535A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59202556A JPS6180535A (ja) 1984-09-27 1984-09-27 光学式情報記録担体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59202556A JPS6180535A (ja) 1984-09-27 1984-09-27 光学式情報記録担体

Publications (1)

Publication Number Publication Date
JPS6180535A true JPS6180535A (ja) 1986-04-24

Family

ID=16459453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59202556A Pending JPS6180535A (ja) 1984-09-27 1984-09-27 光学式情報記録担体

Country Status (1)

Country Link
JP (1) JPS6180535A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305304A (en) * 1986-06-30 1994-04-19 Pioneer Electronic Corporation Optical information carrier having a spacer securely bonded between disks by adhesive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194153A (ja) * 1982-04-27 1983-11-12 トムソン−セエスエフ 保護された光学ディスク
JPS58203645A (ja) * 1982-05-21 1983-11-28 Hitachi Ltd 光デイスク接合方法
JPS60173741A (ja) * 1984-02-20 1985-09-07 Nec Corp 情報記録基板の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194153A (ja) * 1982-04-27 1983-11-12 トムソン−セエスエフ 保護された光学ディスク
JPS58203645A (ja) * 1982-05-21 1983-11-28 Hitachi Ltd 光デイスク接合方法
JPS60173741A (ja) * 1984-02-20 1985-09-07 Nec Corp 情報記録基板の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305304A (en) * 1986-06-30 1994-04-19 Pioneer Electronic Corporation Optical information carrier having a spacer securely bonded between disks by adhesive

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