JPS6245724U - - Google Patents
Info
- Publication number
- JPS6245724U JPS6245724U JP1985137747U JP13774785U JPS6245724U JP S6245724 U JPS6245724 U JP S6245724U JP 1985137747 U JP1985137747 U JP 1985137747U JP 13774785 U JP13774785 U JP 13774785U JP S6245724 U JPS6245724 U JP S6245724U
- Authority
- JP
- Japan
- Prior art keywords
- address
- grooves
- information
- optical disk
- information grooves
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の一実施例を示す平面図、第２
図は従来の光デイスク基板の一例を示す平面図、
第３図は同上の他の例を示す部分平面図、第４図
はアドレス及び情報グルーブの拡大図、第５図は
原盤露光機の現像モニタを示す概略図である。
１……光デイスク基板、２……アドレス及び情
報グルーブ領域、３，３Ａ……グルーブ、４……
中心穴。
Fig. 1 is a plan view showing one embodiment of the present invention;
The figure is a plan view showing an example of a conventional optical disk substrate.
FIG. 3 is a partial plan view showing another example similar to the above, FIG. 4 is an enlarged view of an address and information groove, and FIG. 5 is a schematic diagram showing a development monitor of a master exposure machine. 1... Optical disk substrate, 2... Address and information groove area, 3, 3A... Groove, 4...
center hole.
Claims (1)
スク基板において、アドレス及び情報グルーブの
領域外に、上記アドレス及び情報グルーブの中心
を中心とする複数の同心円又はスパイラル状のグ
ルーブを形成したことを特徴とする光デイスク基
板。 An optical disk substrate on which address and information grooves are formed, wherein a plurality of concentric circles or spiral grooves centered at the center of the address and information grooves are formed outside the area of the address and information grooves. disk board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985137747U JPS6245724U (en) | 1985-09-09 | 1985-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985137747U JPS6245724U (en) | 1985-09-09 | 1985-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6245724U true JPS6245724U (en) | 1987-03-19 |
Family
ID=31042090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985137747U Pending JPS6245724U (en) | 1985-09-09 | 1985-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245724U (en) |
-
1985
- 1985-09-09 JP JP1985137747U patent/JPS6245724U/ja active Pending
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