JPS62129128U - - Google Patents
Info
- Publication number
- JPS62129128U JPS62129128U JP1986016121U JP1612186U JPS62129128U JP S62129128 U JPS62129128 U JP S62129128U JP 1986016121 U JP1986016121 U JP 1986016121U JP 1612186 U JP1612186 U JP 1612186U JP S62129128 U JPS62129128 U JP S62129128U
- Authority
- JP
- Japan
- Prior art keywords
- peripheral edge
- disk
- light
- outer peripheral
- inner peripheral
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図はこの考案の一実施例を説明するための
断面図、第２図は従来のデイスクを説明するため
の斜視図、第３図は第２図の―に沿う断面図
である。
Ｂ…デイスク、Ｈ１，Ｈ２…外周縁、内周縁（
破断面）、Ｓ１，Ｓ２…遮光層、Ｇ…外光、Ｐ…
信号検出光。
FIG. 1 is a sectional view for explaining an embodiment of this invention, FIG. 2 is a perspective view for explaining a conventional disk, and FIG. 3 is a sectional view taken along the line - in FIG. B...Disk, H1 , H2 ...Outer peripheral edge, inner peripheral edge (
fracture surface), S 1 , S 2 ... light shielding layer, G ... external light, P ...
Signal detection light.
Claims (1)
成したことを特徴とする光検出型デイスクの遮光
構造。 1. A light-shielding structure for a photodetecting disk, characterized in that a light-shielding layer is formed on an outer peripheral edge and an inner peripheral edge of the disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986016121U JPH0430651Y2 (en) | 1986-02-06 | 1986-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986016121U JPH0430651Y2 (en) | 1986-02-06 | 1986-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62129128U true JPS62129128U (en) | 1987-08-15 |
| JPH0430651Y2 JPH0430651Y2 (en) | 1992-07-23 |
Family
ID=30807690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986016121U Expired JPH0430651Y2 (en) | 1986-02-06 | 1986-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430651Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999033052A1 (en) * | 1997-12-19 | 1999-07-01 | Ichiro Yokota | Optical recording medium and method of producing the same, and recording signal reproducing device for the medium |
-
1986
- 1986-02-06 JP JP1986016121U patent/JPH0430651Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999033052A1 (en) * | 1997-12-19 | 1999-07-01 | Ichiro Yokota | Optical recording medium and method of producing the same, and recording signal reproducing device for the medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0430651Y2 (en) | 1992-07-23 |