JPH0462519U - - Google Patents
Info
- Publication number
- JPH0462519U JPH0462519U JP1990103106U JP10310690U JPH0462519U JP H0462519 U JPH0462519 U JP H0462519U JP 1990103106 U JP1990103106 U JP 1990103106U JP 10310690 U JP10310690 U JP 10310690U JP H0462519 U JPH0462519 U JP H0462519U
- Authority
- JP
- Japan
- Prior art keywords
- area
- depth
- layer
- recording
- recording layer
- 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
- 239000010410 layer Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 2
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine group Chemical group N1=CCC2=CC=CC=C12 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
Description
第１図は本考案にかかる光デイスクの基板の一
例を示す斜視図、第２図は前記光デイスクの外観
を示す一部破断した斜視図、第３図は前記光デイ
スクの断面を拡大して示す断面図、第４図は本考
案の実施例において用いられるインドレニン系シ
アニン色素を示す化学式、第５図は従来例を示す
説明図である。
１０……基板、１６……記録層、１８……反射
層、２０……保護層、２２……ピツト、２４……
トラツキング溝。
FIG. 1 is a perspective view showing an example of a substrate of an optical disk according to the present invention, FIG. 2 is a partially cutaway perspective view showing the appearance of the optical disk, and FIG. 3 is an enlarged cross-section of the optical disk. 4 is a chemical formula showing an indolenine cyanine dye used in an embodiment of the present invention, and FIG. 5 is an explanatory diagram showing a conventional example. DESCRIPTION OF SYMBOLS 10... Substrate, 16... Recording layer, 18... Reflective layer, 20... Protective layer, 22... Pit, 24...
tracking groove.
Claims (1)
グ溝が形成されたＲＡＭ領域とを有する基板の全
領域上に、情報記録を行うための記録層、情報書
込みあるいは読出しを行うための光を反射する反
射層、それらを保護するための保護層が積層形成
された光デイスクにおいて、 前記ＲＯＭ領域のピツトの深さと前記ＲＡＭ領
域のトラツキング溝の深さとを、同一としたこと
を特徴とする光デイスク。[Claims for Utility Model Registration] A recording layer for recording information, and a recording layer for information writing or reading is provided on the entire area of the substrate, which has a ROM area in which pits are formed and a RAM area in which tracking grooves are formed. In an optical disk in which a reflective layer for reflecting light and a protective layer for protecting them are laminated, the depth of the pit in the ROM area and the depth of the tracking groove in the RAM area are made the same. Features an optical disc.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103106U JPH0462519U (en) | 1990-09-30 | 1990-09-30 | |
| US07/655,817 US5204852A (en) | 1990-02-17 | 1991-02-15 | Optical disc-like recoding medium and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103106U JPH0462519U (en) | 1990-09-30 | 1990-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0462519U true JPH0462519U (en) | 1992-05-28 |
Family
ID=31847859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990103106U Pending JPH0462519U (en) | 1990-02-17 | 1990-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0462519U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137744A (en) * | 1985-12-11 | 1987-06-20 | Hitachi Ltd | Optical disk |
| JPH0242652A (en) * | 1988-07-30 | 1990-02-13 | Taiyo Yuden Co Ltd | Optical information recording medium |
-
1990
- 1990-09-30 JP JP1990103106U patent/JPH0462519U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137744A (en) * | 1985-12-11 | 1987-06-20 | Hitachi Ltd | Optical disk |
| JPH0242652A (en) * | 1988-07-30 | 1990-02-13 | Taiyo Yuden Co Ltd | Optical information recording medium |
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