JPS6179824U - - Google Patents
Info
- Publication number
- JPS6179824U JPS6179824U JP1984162550U JP16255084U JPS6179824U JP S6179824 U JPS6179824 U JP S6179824U JP 1984162550 U JP1984162550 U JP 1984162550U JP 16255084 U JP16255084 U JP 16255084U JP S6179824 U JPS6179824 U JP S6179824U
- Authority
- JP
- Japan
- Prior art keywords
- bonding
- optical disk
- bonding surface
- substrates
- plane
- 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 5
- 239000000758 substrate Substances 0.000 claims description 4
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図ａは本考案の第１の実施例を示す断面図
、第１図ｂは基板の平面図、第２図は第１図に示
す光デイスクの外側の接合面と外側斜面部との寸
法を説明するための一部拡大断面図、第３図は本
考案の第２の実施例を示す断面図、第４図は従来
の光デイスクの一例を示す断面図、第５図は従来
の光デイスクの他例を示す断面図である。
１，１Ａ，１Ｂ…基板、２…記録層、３ａ，３
ｂ…接合面、４…凹部平面、６…内側斜面部、７
…外側斜面部。
FIG. 1a is a sectional view showing the first embodiment of the present invention, FIG. 1b is a plan view of the substrate, and FIG. 3 is a sectional view showing a second embodiment of the present invention, FIG. 4 is a sectional view showing an example of a conventional optical disk, and FIG. 5 is a sectional view of a conventional optical disk. FIG. 3 is a sectional view showing another example of an optical disk. 1, 1A, 1B...substrate, 2... recording layer, 3a, 3
b...Joint surface, 4...Concave plane, 6...Inner slope part, 7
...outer slope area.
Claims (1)
イスクにおいて、前記両基板は、全周に亘る接合
面と、この接合面より板厚の小さい凹部平面と、
前記接合面と凹部平面との間に位置する斜面部と
を有し、前記接合面同士を接合して凹部平面に形
成した記録層間に一定の空間を形成したことを特
徴とする光デイスク。 In an optical disk in which a pair of substrates each having a recording layer are disposed facing each other, each of the two substrates has a bonding surface extending over the entire circumference, a recessed flat surface having a thickness smaller than that of the bonding surface, and
What is claimed is: 1. An optical disk comprising: a slope portion located between the bonding surface and the plane of the recess, and a certain space is formed between the recording layers formed by bonding the bonding surfaces to each other and forming the plane of the depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162550U JPS6179824U (en) | 1984-10-26 | 1984-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162550U JPS6179824U (en) | 1984-10-26 | 1984-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6179824U true JPS6179824U (en) | 1986-05-28 |
Family
ID=30720424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984162550U Pending JPS6179824U (en) | 1984-10-26 | 1984-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6179824U (en) |
-
1984
- 1984-10-26 JP JP1984162550U patent/JPS6179824U/ja active Pending