JPH027243A - Optical disk and its manufacturing - Google Patents
Optical disk and its manufacturingInfo
- Publication number
- JPH027243A JPH027243A JP1061705A JP6170589A JPH027243A JP H027243 A JPH027243 A JP H027243A JP 1061705 A JP1061705 A JP 1061705A JP 6170589 A JP6170589 A JP 6170589A JP H027243 A JPH027243 A JP H027243A
- Authority
- JP
- Japan
- Prior art keywords
- optical disc
- information
- recording
- track area
- area
- 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 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000007689 inspection Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 230000008021 deposition Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、光学的に情報を記録し、この記録した情報を
再生することに用いる光ディスクに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical disc used for optically recording information and reproducing the recorded information.
第２図は、従来の両面記録形光ディスクの一例を示す断
面図である。同図に示すように、ハブ１ならびに外周ス
ペーサ２を介して２枚のディスク３が対向するように固
定されている。このディスク３は、透明なディスク基板
４と、それの片面に設けられた記録膜５とから構成され
、その記録膜５には同心円状にプリグループ５ａが形成
され、２枚のディスク３はこの記録膜５どうしが対向す
るように配首されている。FIG. 2 is a sectional view showing an example of a conventional double-sided recording type optical disc. As shown in the figure, two disks 3 are fixed so as to face each other with a hub 1 and an outer circumferential spacer 2 in between. This disk 3 is composed of a transparent disk substrate 4 and a recording film 5 provided on one side of the transparent disk substrate 4. A pregroup 5a is formed concentrically on the recording film 5. The recording films 5 are arranged so as to face each other.
一方、前記ハブ１は例えば金属などの耐摩耗性を有する
材料でつくられており、それの中央にはドライブ装置の
スピンドル（図示せず）が挿入されて、装置内における
光ディスクの位置決めを行なうためのセンタ・−ホール
ｌａが設けられている。On the other hand, the hub 1 is made of a wear-resistant material such as metal, and a spindle (not shown) of a drive device is inserted into the center of the hub 1 for positioning the optical disc within the device. A center hole la is provided.
図中の６は２枚のディスク３間に形成されたエアギャッ
プである。6 in the figure is an air gap formed between the two disks 3.
第３図ないし第５図は、この光ディスクの製造工程を示
す説明図で、この図に基づいて光ディスクの製造方法の
一例を説明する。3 to 5 are explanatory diagrams showing the manufacturing process of this optical disc, and an example of the method of manufacturing the optical disc will be explained based on these diagrams.
まず第３図に示すように１表面に前記プリグループ５ａ
に対応する同心円状の溝７ａを多数有するスタンパー、
７上に、未硬化の流動性を有する紫外線硬化樹脂８を滴
下する。このスタンパー、７は、原盤製造工程によって
製造された原盤を基に、その後のスタンパー、製造工程
によって製造されたものである。そしてディスク基板４
をそれの中央部が下になるように若干湾曲させた状態で
前記樹脂８上に圧接し、次に周辺部を徐々にスタンパー
、７上に降す。このようにしてディスク基板４をスタン
パー、７に圧接すると、両者間で前記紫外線硬化樹脂８
が外周方向へ押し拡げられて、前記各溝７ａ内にも充填
される。First, as shown in FIG. 3, the pre-group 5a is placed on one surface.
a stamper having a large number of concentric grooves 7a corresponding to the
An uncured ultraviolet curable resin 8 having fluidity is dropped onto the resin 7 . This stamper 7 is manufactured in a subsequent stamper manufacturing process based on the master manufactured in the master manufacturing process. and disk board 4
is pressed onto the resin 8 in a slightly curved state so that the center part is downward, and then the peripheral part is gradually lowered onto the stamper 7. When the disk substrate 4 is pressed against the stamper 7 in this way, the ultraviolet curing resin 8
is pushed outward in the outer circumferential direction and is also filled in each of the grooves 7a.
しかる後、第４図に矢印で示すようにディスク基板４の
上方から紫外線９を照射し、紫外線硬化樹脂８を硬化さ
せる。次にディスク基板４をスタンパー、７から剥離す
ると、硬化した樹脂膜もディスク基板４とともにスタン
パー、７から離れ、これによってプリグループ５ａを形
成しさらに記録膜５を形成する。このようにしてレプリ
カ工程が終了する。Thereafter, as shown by the arrow in FIG. 4, ultraviolet rays 9 are irradiated from above the disk substrate 4 to cure the ultraviolet curing resin 8. Next, when the disk substrate 4 is peeled off from the stamper 7, the cured resin film is also separated from the stamper 7 together with the disk substrate 4, thereby forming a pre-group 5a and further forming a recording film 5. In this way, the replica process is completed.
次に前記プリグループ５ａを利用してディスク基板４の
中心位置を光学的に求め、それに基づいてディスク基板
４に中央透孔４ａを設け、これらにハブ１と外周スペー
サ２を接着して組み合わせることにより、第５図に示す
ような光ディスクを製作する。Next, the center position of the disk substrate 4 is optically determined using the pre-group 5a, and based on this, a central through hole 4a is provided in the disk substrate 4, and the hub 1 and the outer circumferential spacer 2 are bonded to these and assembled. In this way, an optical disc as shown in FIG. 5 is manufactured.
以上の説明から明らかなように、光ディスクは、種々の
工程を経て製造されるため、前記レプリカ工程における
剥離条件等を含めて数多くの製造条件がデータとして必
要となってくる。また、製造途中や製造後に、ハブ１に
対するディスク基板４の偏心量等をはじめとして数多く
の検査が行なわれ、こ検査結果もデータとして必要にな
ってくる。As is clear from the above description, since optical discs are manufactured through various processes, a large number of manufacturing conditions including peeling conditions in the replica process are required as data. Further, during and after manufacturing, numerous inspections are performed including the amount of eccentricity of the disk substrate 4 with respect to the hub 1, and the results of these inspections are also required as data.
このように各種製造条件のデータや検査結果のデータは
、従来、書類にファイルされ製造メーカ側に管理・保管
され、市場でのトラブルが発生した際に、その原因を究
明するためのデータとして利用される。In this way, data on various manufacturing conditions and inspection results have traditionally been filed in documents and managed and stored by manufacturers, and used as data to investigate the cause of problems in the market. be done.
しかしながら、同一の製造条件下で同一の番号が付与さ
れた製造ロット番号と、種々の製造条件で製造されたも
のの中から良品のものに通し番号として付与される製造
番号とは、両者の間に相関関係はない。しかも前述した
ように製造条件と検査結果のデータは非常に情報量が多
いため、書類を用いた従来の保存方法では、原因究明の
ための検索に多大な時間を費やすという欠点があった。However, there is a correlation between manufacturing lot numbers, which are assigned the same number under the same manufacturing conditions, and serial numbers, which are assigned as serial numbers to non-defective items manufactured under various manufacturing conditions. There is no relationship. Moreover, as mentioned above, the data on manufacturing conditions and test results contains a very large amount of information, so the conventional storage method using documents has the disadvantage that it takes a lot of time to search for causes.
本発明は、かかる従来技術の欠点を解消しようとするも
ので、その目的とするところは、製造条件や検査結果等
の製造履歴のデータを光ディスクに予め記録された情報
を再生することによって、迅速に検索することのできる
光ディスクならびにその製造方法を提供するにある。The present invention aims to eliminate the drawbacks of the prior art, and its purpose is to quickly reproduce manufacturing history data such as manufacturing conditions and inspection results by reproducing information pre-recorded on an optical disk. The purpose of the present invention is to provide an optical disc that can be searched for and a method for manufacturing the same.
前述の目的を達成るため、本発明は、ディスクに設けら
れる記録膜のユーザが情報記録に用いる記録領域（ユー
ザトランク領域）を除くトラック領域に、光ディスクを
出荷する時点で予め製造履歴の情報を光学的に記録した
点に特徴がある。In order to achieve the above-mentioned object, the present invention stores information on the manufacturing history in advance at the time of shipping the optical disc into the track area of the recording film provided on the disc, excluding the recording area (user trunk area) used by the user to record information. It is distinctive in that it is recorded optically.
このような構成をとることにより、光ディスクにトラブ
ルが発生しても、それに記録されている製造履歴の情報
を再生することにより、トラブルの原因究明を迅速にす
ることができる。With such a configuration, even if a trouble occurs in the optical disc, the cause of the trouble can be quickly investigated by reproducing the manufacturing history information recorded on the optical disc.
以下、本発明の実施例について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１図は、本発明による光ディスクの一実施例を示す平
面図である。図中の１０はユーザトランク領域、１１は
履歴情報記録トラック領域、１２は交替トラック領域、
１３はガードトラック領域であり、第２図に対応する部
分には同一符号を付けである。FIG. 1 is a plan view showing an embodiment of an optical disc according to the present invention. In the figure, 10 is a user trunk area, 11 is a history information recording track area, 12 is a replacement track area,
13 is a guard track area, and parts corresponding to those in FIG. 2 are given the same reference numerals.
第１図において、ディスク３の記録膜は、ユーザトラッ
ク領域１０．）３ｉ歴情報トラツク領域１１゜交替トラ
ック領域１２およびガードトラック領域１３からなる異
なる複数のトラックを有している。In FIG. 1, the recording film of the disc 3 has a user track area 10. ) 3i history information track area 11° has a plurality of different tracks consisting of a replacement track area 12 and a guard track area 13.
最大幅のユーザトラック領域１０は、ユーザが情報の記
録・再生用として用いる領域で、該ユーザトランク領域
１０の内側の交替トラック領域１２は、ユーザトラック
領域１０が何らかの障害で記録不可能な状態になった時
に情報の記録・再生用として用いられる予備の領域であ
って、これら両トランク１０．１２でユーザ側の記録領
域を構成している。The widest user track area 10 is an area used by the user for recording and reproducing information, and the replacement track area 12 inside the user trunk area 10 is used when the user track area 10 becomes unrecordable due to some failure. These two trunks 10 and 12 constitute a recording area on the user side.
また、ユーザトラック領域ｌＯの外側に位置する履歴情
報トラック領域１１は、製造条件の各種データならびに
検査結果の各種データが記録されている領域である。さ
らに、履歴情報トラック領域１１の外側と交替トラック
領域１２の内側とにそれぞれ位置するガードトラック領
域１３は、記録、再生用として使用されない不使用の領
域である。Further, a history information track area 11 located outside the user track area IO is an area in which various data regarding manufacturing conditions and various data regarding inspection results are recorded. Furthermore, guard track areas 13 located outside the history information track area 11 and inside the replacement track area 12 are unused areas that are not used for recording or reproduction.
前記履歴情報トランク領域１１に記録されている履歴情
報は、コード情報、コード化された画像情報あるいはコ
ード化された音声情報として、製作から検査工程までを
含む全ての製造工程が完了した後に、製造メーカ側によ
って前記履歴情報を光ディスク３に光学的に記録されて
から、市場に出荷される。The history information recorded in the history information trunk area 11 is stored in the form of code information, coded image information, or coded audio information after all manufacturing processes from production to inspection are completed. After the history information is optically recorded on the optical disc 3 by the manufacturer, it is shipped to the market.
履歴情報のうち、製造条件の具体的な内容としては、
１、原盤製造工程時におけるガラスロット番号、２、Ｉ
ＰＡ（イソプロビールアルコール）ロット番号、
３、接触角、
４、回折法データ、
５、フォトレジストの膜厚、
６、スタンパ製造時におけるポスト露光、７、ボストベ
ーク、
８、ニッケル蒸着条件、
９、メツキ液のＰＨ値、温度、
１０、電流密度、
１１、回転数、
１２、時間、
１３、膜厚、
１４、ｉ打ちの接着条件、
１５、ＵＶ露光条件。Among the historical information, the specific contents of manufacturing conditions are: 1. Glass lot number during the master manufacturing process; 2. I
PA (isoprobil alcohol) lot number, 3. Contact angle, 4. Diffraction method data, 5. Photoresist film thickness, 6. Post exposure during stamper production, 7. Bost bake, 8. Nickel deposition conditions, 9. Plating PH value of the liquid, temperature, 10, current density, 11, number of rotations, 12, time, 13, film thickness, 14, adhesion conditions for i-strike, 15, UV exposure conditions.
１６、プラズマアッシャ、 １７、保護板接着条件、 １８、レプリカ接続工程時におけるガラスロット番号、 １９、接触角、 ２０、シランロット番号。16, plasma asher, 17. Protective plate adhesion conditions, 18.Glass lot number during the replica connection process; 19, contact angle, 20, Silan lot number.
２１、ニトロセ′ルロースロット番号。21, Nitrocellulose slot number.
２２、ＵＶレジストロット番号、 ２３．蒸着時間、 ２４、蒸着時のスプリントタイム、 ２５、剥離の距離。22, UV resist lot number, 23. Deposition time, 24. Sprint time during deposition, 25. Peeling distance.
２６、反射率、透過率のデータ。26. Data on reflectance and transmittance.
２７、目視検査データ ２８、各工程における製造装置の番号等が挙げられる。27. Visual inspection data 28, the number of manufacturing equipment in each process, etc.
一方、検査結果の具体的内容としては、１、偏心、 ２、偏心の加速度。On the other hand, the specific contents of the test results are: 1. Eccentricity; 2. Eccentric acceleration.
３、上下振れ。3. Vertical swing.
４、上下振れ加速度。4. Vertical vibration acceleration.
５、データ部の欠陥レート。5. Defect rate of data section.
６、プリフオマツト部のエラー個数およびアドレス。6. Number of errors and addresses in the preformat section.
７、プリフオマツト部の信号振幅値、 ８、グループノイズ、 ９、トラックオフセット、 １０、トラックノイズ、 １１、オートフォカスノイズ、 １２、トラック変調度等が挙げられる。7. Signal amplitude value of preformat section, 8. Group noise, 9. Track offset, 10, track noise, 11. Auto focus noise, 12, track modulation degree, etc.
このように構成された光ディスクにあっては、光ディス
クに市場でのトラブルが発生した場合でも、当該光ディ
スクの履歴情報トラック領域１１を示すプリフオマツト
部を検索することから、それの製造履歴を再生すること
ができ、トラブルの原因究明が迅速に行なわれる。With an optical disc configured in this way, even if a problem occurs in the market with the optical disc, the manufacturing history of the optical disc can be reproduced by searching the preformat section indicating the history information track area 11 of the optical disc. The cause of the problem can be quickly investigated.
なお前記実施例では、記録領域の外周位置に履歴情報ト
ラック領域１１を設けた場合について説明したが、この
履歴情報トラック領域１１は記録領域の内周位置、すな
わち、交替トラック領域１２と内側のガードトラック領
域１．３との間に設けることも可能である。In the above embodiment, a case has been described in which the history information track area 11 is provided at the outer circumferential position of the recording area, but this history information track area 11 is provided at the inner circumferential position of the recording area, that is, between the replacement track area 12 and the inner guard. It is also possible to provide it between the track area 1.3.
また、前記履歴情報トラック領域１１には、光ディスク
を出荷した後であっても、ユーザが使用した際に発生す
るトラブル内容を記録することも可能である。Further, in the history information track area 11, even after the optical disc is shipped, it is possible to record details of troubles that occur when the user uses the optical disc.
以上説明したように、本発明によれば、光ディスクに市
場でのトラブルが発生した場合でも、その光ディスクに
予め記録されている製造履歴の情報を再生することによ
り、トラブルの原因究明を迅速に行なうことができ、前
記従来技術の欠点が解消され優れた機能の光ディスクが
提供できる。As explained above, according to the present invention, even if a problem occurs in the market with an optical disk, the cause of the problem can be quickly investigated by reproducing the manufacturing history information pre-recorded on the optical disk. Therefore, the drawbacks of the prior art described above can be solved and an optical disc with excellent functions can be provided.
第１図は、本発明による光ディスクの一実施例を示す平
面図、
第２図は、従来の光ディスクの一例を示す断面図、
第３図、第４図ならびに第５図は光ディスクの製造工程
の一例を示す断面図である。
第１図
■・・・・・・ハブ、３・・・・・・ディスク、４・・
・・・・ディスク基板、５・・・・・・記録膜、ＩＯ・
・・・・・ユーザトラック領域。
１１・・・・・・履歴情報トラック領域、１２・・・・
・・交替トラック領域、１３・・・・・・ガードトラッ
ク領域。
代揮人 葬押＋ 紫
デイスフ
ユーザートラ、ｖ７４鈎雇
Ａｉｔり爵遣夛トラック４ｐ工四
交哲トラ１．．ワ領匁Ｃ
第
図
第
図
第
図FIG. 1 is a plan view showing an embodiment of an optical disc according to the present invention, FIG. 2 is a sectional view showing an example of a conventional optical disc, and FIGS. It is a sectional view showing an example. Figure 1■...Hub, 3...Disk, 4...
... Disc substrate, 5 ... Recording film, IO.
...User track area. 11... History information track area, 12...
...Replacement track area, 13...Guard track area. Substitute performer Sooshi + Murasaki Daysu Fuusertora, v74 Hook Hire Ait Rishu Sentai Truck 4p Worker 4 Kotetsu Tora 1. ．． Waryomonme C Figure Figure Figure Figure
Claims (8)
することに用いられる光ディスクにおいて、記録膜のプ
リフオマツト部におけるユーザが情報記録に用いる記録
膜トラック領域を除く記録膜のトラック領域に、光ディ
スクの製造工程の履歴情報を光学的に記録することによ
つて完成されたことを特徴とする光ディスク。(1) In an optical disc used for optically recording information and reproducing the recorded information, in the track area of the recording film other than the recording film track area used by the user to record information in the preformat section of the recording film, An optical disc characterized in that it is completed by optically recording history information of the manufacturing process of the optical disc.
ンパー、レプリカ、記録膜蒸着、光ディスクの組立、光
ディスクの検査の各工程の情報であることを特徴とする
特許請求の範囲第（１）項記載の光ディスク。(2) The history information of the optical disc manufacturing process is information on each process of master disc, stamper, replica, recording film deposition, optical disc assembly, and optical disc inspection. optical disc.
ユーザ情報記録トラック領域以外の外周側プリフオマツ
ト領域であることを特徴とする光ディスク。(3) The recording film track area for recording the history information is:
An optical disc characterized by having an outer preformat area other than a user information recording track area.
報記録トラック領域以外の内周側プリフオマツト領域で
あることを特徴とする特許請求の範囲第（１）項記載の
光ディスク。(4) The optical disc according to claim (1), wherein the history information recording film track area is an inner preformat area other than the user information recording track area.
が情報記録記録に用いる記録膜トラック領域に隣接して
いることを特徴とする特許請求の範囲第（４）項記載の
光ディスク。(5) The optical disc according to claim (4), wherein the history information recording track area is adjacent to a recording film track area used by the user to record information.
音声情報であることを特徴とする特許請求の範囲第（１
）項記載の光ディスク。(6) The history information is coded image information or audio information.
) Optical discs listed in section.
することに用いられる光ディスクにおいて、原盤を用い
て表面に同心円状の溝とプリフオマット部が形成された
スタンパを作成し、該スタンパの表面パターンをディス
ク基板表面に転写し、該スタンパから剥離してレプリカ
層を形成し、該レプリカ層上に記録膜を形成して光ディ
スクとする工程と、 該光ディスクの製作から検査するまでに得られた製造工
程の情報を、該光ディスクのユーザ情報記録領域を除く
プリフオマツト部に光学的に記録する工程によつて製造
されることを特徴とする光ディスクの製造方法。(7) In an optical disc used for optically recording information and reproducing the recorded information, a stamper having concentric grooves and a preformat portion formed on the surface is created using a master disc, and the stamper is A process of transferring a surface pattern onto the surface of a disk substrate, peeling it off from the stamper to form a replica layer, and forming a recording film on the replica layer to form an optical disk; 1. A method of manufacturing an optical disc, characterized in that the optical disc is manufactured by a step of optically recording information on the manufacturing process in a preformat section of the optical disc excluding a user information recording area.
情報の記録は、検査工程後に光デイスクへ光学的に記録
したことを特徴とする特許請求の範囲第（７）項記載の
光ディスクの製造方法。(8) The method for manufacturing an optical disc according to claim (7), wherein the recording of the history information of the manufacturing process in the recording film preformat portion is optically recorded on the optical disc after the inspection process. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1061705A JPH027243A (en) | 1989-03-14 | 1989-03-14 | Optical disk and its manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1061705A JPH027243A (en) | 1989-03-14 | 1989-03-14 | Optical disk and its manufacturing |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6170689A Division JPH02203423A (en) | 1989-03-14 | 1989-03-14 | Draw system for optical disk information |
| JP6451596A Division JPH08329623A (en) | 1996-03-21 | 1996-03-21 | Optical information recording medium |
| JP6451696A Division JPH08329624A (en) | 1996-03-21 | 1996-03-21 | Optical information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH027243A true JPH027243A (en) | 1990-01-11 |
| JPH0444818B2 JPH0444818B2 (en) | 1992-07-22 |
Family
ID=13178920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1061705A Granted JPH027243A (en) | 1989-03-14 | 1989-03-14 | Optical disk and its manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027243A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997014146A1 (en) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Optical disk, bar code formation method for optical disk, optical disk reproduction apparatus, and marking method, laser marking method for optical disk, and method of optical disk production |
| EP0785547A3 (en) * | 1996-01-16 | 1998-08-05 | International Business Machines Corporation | Unique identifier for optical media |
| US6144742A (en) * | 1996-05-16 | 2000-11-07 | Mitsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| JP2007502497A (en) * | 2003-08-14 | 2007-02-08 | エルジー エレクトロニクス インコーポレイティド | Recording medium, identification information recording method, and recording / reproducing method thereof |
| JP2008251090A (en) * | 2007-03-30 | 2008-10-16 | Matsushita Electric Ind Co Ltd | Method for determining recording power of optical disk unit and optical disk unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479004A (en) * | 1977-12-06 | 1979-06-23 | Victor Co Of Japan Ltd | Disc form recording medium |
| JPS5738961A (en) * | 1980-08-16 | 1982-03-03 | Nippon Ranzubaagu Kk | Controller for discharged volume of paint |
| JPS5753844A (en) * | 1980-09-18 | 1982-03-31 | Hitachi Ltd | Optical recording and reproducing disk |
| JPS57141035A (en) * | 1981-02-25 | 1982-09-01 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing disc |
| JPS58110220A (en) * | 1981-12-25 | 1983-06-30 | Hitachi Ltd | Manufacture of substrate for optical disc recording medium |
| JPS5942653A (en) * | 1982-09-02 | 1984-03-09 | Toshiba Corp | Optical disk |
-
1989
- 1989-03-14 JP JP1061705A patent/JPH027243A/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479004A (en) * | 1977-12-06 | 1979-06-23 | Victor Co Of Japan Ltd | Disc form recording medium |
| JPS5738961A (en) * | 1980-08-16 | 1982-03-03 | Nippon Ranzubaagu Kk | Controller for discharged volume of paint |
| JPS5753844A (en) * | 1980-09-18 | 1982-03-31 | Hitachi Ltd | Optical recording and reproducing disk |
| JPS57141035A (en) * | 1981-02-25 | 1982-09-01 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing disc |
| JPS58110220A (en) * | 1981-12-25 | 1983-06-30 | Hitachi Ltd | Manufacture of substrate for optical disc recording medium |
| JPS5942653A (en) * | 1982-09-02 | 1984-03-09 | Toshiba Corp | Optical disk |
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|---|---|---|---|---|
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| US6122373A (en) * | 1995-10-09 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical disk barcode forming method, optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6052465A (en) * | 1995-10-09 | 2000-04-18 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6449366B1 (en) | 1995-10-09 | 2002-09-10 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6125181A (en) * | 1995-10-09 | 2000-09-26 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6457128B1 (en) | 1995-10-09 | 2002-09-24 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6141419A (en) * | 1995-10-09 | 2000-10-31 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US8472291B2 (en) | 1995-10-09 | 2013-06-25 | Panasonic Corporation | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6160888A (en) * | 1995-10-09 | 2000-12-12 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6175629B1 (en) | 1995-10-09 | 2001-01-16 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6208736B1 (en) | 1995-10-09 | 2001-03-27 | Matsushita Electric Industrial Co., Ltd. | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| US6229896B1 (en) | 1995-10-09 | 2001-05-08 | Matsushita Electric Industrial, Co., Ltd. | Optical disk, an optical barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
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| US8014236B2 (en) | 1995-10-09 | 2011-09-06 | Panasonic Corporation | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
| WO1997014146A1 (en) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Optical disk, bar code formation method for optical disk, optical disk reproduction apparatus, and marking method, laser marking method for optical disk, and method of optical disk production |
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| JP2007502497A (en) * | 2003-08-14 | 2007-02-08 | エルジー エレクトロニクス インコーポレイティド | Recording medium, identification information recording method, and recording / reproducing method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH0444818B2 (en) | 1992-07-22 |
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