JPS63109333U - - Google Patents
Info
- Publication number
- JPS63109333U JPS63109333U JP1987000170U JP17087U JPS63109333U JP S63109333 U JPS63109333 U JP S63109333U JP 1987000170 U JP1987000170 U JP 1987000170U JP 17087 U JP17087 U JP 17087U JP S63109333 U JPS63109333 U JP S63109333U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- spacer
- insertion hole
- approximately equal
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図ａ，ｂは本考案の一実施例を示す図であ
つて、ａは縦断面図、ｂはａのＢ―Ｂ線に沿う横
断面図である。第２図は従来の光デイスクの縦断
面図、第３図は第２図に示す従来の光デイスクの
スピンドル挿通孔周辺の拡大図である。
１，２……基板、１ａ，２ａ……感光層、３，
４……スペーサ、５……スピンドル挿通孔、１０
……光デイスク、１２……円環状磁性体。
FIGS. 1a and 1b are views showing one embodiment of the present invention, in which a is a longitudinal cross-sectional view and b is a cross-sectional view taken along line BB of a. FIG. 2 is a longitudinal sectional view of a conventional optical disk, and FIG. 3 is an enlarged view of the vicinity of the spindle insertion hole of the conventional optical disk shown in FIG. 1, 2...Substrate, 1a, 2a...Photosensitive layer, 3,
4...Spacer, 5...Spindle insertion hole, 10
... Optical disk, 12 ... Circular magnetic material.
Claims (1)
周縁近傍で円環状スペーサを介して接合され、中
心部にはスピンドル挿通孔が設けられた光デイス
クにおいて、該２枚の基板の間の前記挿通孔周縁
部分は磁性体を非接着状態にて介装させたことを
特徴とする光デイスク。 (2) 磁性体は円環形状である実用新案登録請求
の範囲第(1)項に記載の光デイスク。 (3) 磁性体は内縁近傍のスペーサの内径とほぼ
等しい外径でありかつ該スペーサの厚さとほぼ等
しいか又はそれ以下の厚さの円環形状である実用
新案登録請求の範囲第(2)項に記載の光デイスク
。[Scope of Claim for Utility Model Registration] (1) In an optical disk in which two disk-shaped substrates are joined near the outer and inner edges of the substrate via an annular spacer, and a spindle insertion hole is provided in the center. . An optical disk, characterized in that a magnetic material is interposed in a non-adhesive state at a peripheral portion of the insertion hole between the two substrates. (2) The optical disk according to claim (1) of the utility model registration, wherein the magnetic body has an annular shape. (3) The magnetic body has an annular shape with an outer diameter approximately equal to the inner diameter of the spacer near the inner edge and a thickness approximately equal to or less than the thickness of the spacer (Claim No. 2) Optical disks as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000170U JPH0416255Y2 (en) | 1987-01-05 | 1987-01-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000170U JPH0416255Y2 (en) | 1987-01-05 | 1987-01-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63109333U true JPS63109333U (en) | 1988-07-14 |
| JPH0416255Y2 JPH0416255Y2 (en) | 1992-04-13 |
Family
ID=30776908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987000170U Expired JPH0416255Y2 (en) | 1987-01-05 | 1987-01-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416255Y2 (en) |
-
1987
- 1987-01-05 JP JP1987000170U patent/JPH0416255Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416255Y2 (en) | 1992-04-13 |