JPS61111038U - - Google Patents
Info
- Publication number
- JPS61111038U JPS61111038U JP1984195382U JP19538284U JPS61111038U JP S61111038 U JPS61111038 U JP S61111038U JP 1984195382 U JP1984195382 U JP 1984195382U JP 19538284 U JP19538284 U JP 19538284U JP S61111038 U JPS61111038 U JP S61111038U
- Authority
- JP
- Japan
- Prior art keywords
- turntable
- optical disk
- warp
- recording medium
- utility
- 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 7
- 238000010586 diagram Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は従来技術による光デイスクの構成を示
す断面図であり、第２図は第１図の光デイスクを
ターンテーブルに載置したときのそりの様子を示
す模式図であり、第３図はこの考案による光デイ
スクの一つの構成を示す断面図であり、第４図は
第３図の光デイスクをターンテーブルに載置した
ときのそりの様子を示す模式図であり、第５図な
いし第９図はこの考案の別の構成を示す断面図で
ある。
１…光デイスク、２…透明基板、３…接着層、
４…記録層、５…中心穴、１０…ターンテーブル
、１１…スピンドルモータ、１２…集光レンズ、
１３…レーザビーム、１４…光軸、１５…エアギ
ヤツプ、１６…内周スペーサ、１７…外周スペー
サ。
FIG. 1 is a sectional view showing the structure of an optical disk according to the prior art, FIG. 2 is a schematic diagram showing how the optical disk of FIG. 1 warps when placed on a turntable, and FIG. is a cross-sectional view showing one structure of the optical disk according to this invention, FIG. 4 is a schematic diagram showing how the optical disk of FIG. 3 warps when placed on a turntable, and FIGS. FIG. 9 is a sectional view showing another configuration of this invention. 1... Optical disk, 2... Transparent substrate, 3... Adhesive layer,
4... Recording layer, 5... Center hole, 10... Turntable, 11... Spindle motor, 12... Condenser lens,
13...Laser beam, 14...Optical axis, 15...Air gap, 16...Inner spacer, 17...Outer spacer.
Claims (1)
分だけあらかじめ逆方向にそるように構成したこ
とを特徴とする、光学的情報記録媒体。 An optical information recording medium characterized in that it is configured to warp in the opposite direction by the amount of warpage caused by its own weight when placed on a turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984195382U JPS61111038U (en) | 1984-12-25 | 1984-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984195382U JPS61111038U (en) | 1984-12-25 | 1984-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61111038U true JPS61111038U (en) | 1986-07-14 |
Family
ID=30752920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984195382U Pending JPS61111038U (en) | 1984-12-25 | 1984-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61111038U (en) |
-
1984
- 1984-12-25 JP JP1984195382U patent/JPS61111038U/ja active Pending
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