JPH0458818U - - Google Patents
Info
- Publication number
- JPH0458818U JPH0458818U JP1990098520U JP9852090U JPH0458818U JP H0458818 U JPH0458818 U JP H0458818U JP 1990098520 U JP1990098520 U JP 1990098520U JP 9852090 U JP9852090 U JP 9852090U JP H0458818 U JPH0458818 U JP H0458818U
- Authority
- JP
- Japan
- Prior art keywords
- optical storage
- storage medium
- medium substrate
- circumferential surface
- shaped
- 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 15
- 239000000758 substrate Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000031700 light absorption Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 2
- 239000011241 protective layer Substances 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要部の断面図
、第２図は本考案の別の実施例を示す要部の断面
図、第３図は本考案の更に別の実施例を示す要部
の断面図、第４図は従来のコンパクトデイスク型
の光学記憶装置を示す断面図である。
図中、１……光学記憶媒体基板、２……情報記
憶面、３……反射層、４……保護層、５……中心
孔、６……内周端、７……外周端、８……内周面
、９……外周面、１０……位置、１１……位置、
１２……位置、１３……位置、１４……光吸収層
。
Fig. 1 is a sectional view of the main part showing one embodiment of the invention, Fig. 2 is a sectional view of the main part showing another embodiment of the invention, and Fig. 3 is a sectional view of the main part showing another embodiment of the invention. FIG. 4 is a sectional view showing a conventional compact disk type optical storage device. In the figure, 1... Optical storage medium substrate, 2... Information storage surface, 3... Reflective layer, 4... Protective layer, 5... Center hole, 6... Inner peripheral end, 7... Outer peripheral end, 8 ...Inner peripheral surface, 9...Outer peripheral surface, 10...Position, 11...Position,
12...Position, 13...Position, 14...Light absorption layer.
Claims (1)
の外周面に当たつた光が受光素子以外に指向する
ように構成したことを特徴とする光学記憶装置。 ２ 光学記憶媒体基板が円盤状であり、その外周
面及び内周面の少なくとも一部分が、受光素子側
の円盤状光学記憶媒体の裏面に対して鈍角を成し
ている請求項１に記載の光学記憶装置。 ３ 円盤状光学記憶媒体基板の情報記憶面の内周
端及び外周端から受光素子側の円盤状光学記憶媒
体基板の表面にそれぞれ垂直に結んだ位置の内側
及び外側において少なくとも円盤状光学記憶媒体
基板の情報記憶面を通る平面が円盤状光学記憶媒
体基板の内周面及び外周面とそれぞれ交わる位置
に向かつて斜めにカツトされている請求項２に記
載の光学記憶装置。 ４ 光学記憶媒体基板が円盤状であり、その外周
面及び内周面の少なくとも一部分が光吸収率の大
きな光吸収層を備えている請求項１に記載の光学
記憶装置。[Claims of Utility Model Registration] 1. An optical storage device characterized in that at least the outer circumferential surface of an optical storage medium substrate is configured such that light impinging on the outer circumferential surface is directed toward a region other than a light receiving element. 2. The optical storage medium according to claim 1, wherein the optical storage medium substrate is disc-shaped, and at least a portion of the outer peripheral surface and the inner peripheral surface thereof form an obtuse angle with respect to the back surface of the disc-shaped optical storage medium on the light-receiving element side. Storage device. 3 At least the disk-shaped optical storage medium substrate at the inner and outer sides of the positions perpendicularly connected from the inner and outer edges of the information storage surface of the disk-shaped optical storage medium substrate to the surface of the disk-shaped optical storage medium substrate on the light receiving element side, respectively. 3. The optical storage device according to claim 2, wherein the plane passing through the information storage surface of the disc-shaped optical storage medium substrate is cut obliquely toward a position where the plane intersects with the inner circumferential surface and the outer circumferential surface of the disc-shaped optical storage medium substrate, respectively. 4. The optical storage device according to claim 1, wherein the optical storage medium substrate is disc-shaped, and at least a portion of its outer circumferential surface and inner circumferential surface is provided with a light absorption layer having a high light absorption rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990098520U JPH0458818U (en) | 1990-09-21 | 1990-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990098520U JPH0458818U (en) | 1990-09-21 | 1990-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458818U true JPH0458818U (en) | 1992-05-20 |
Family
ID=31839768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990098520U Pending JPH0458818U (en) | 1990-09-21 | 1990-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2013145523A1 (en) * | 2012-03-28 | 2015-12-10 | パナソニックＩｐマネジメント株式会社 | disk |
-
1990
- 1990-09-21 JP JP1990098520U patent/JPH0458818U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2013145523A1 (en) * | 2012-03-28 | 2015-12-10 | パナソニックＩｐマネジメント株式会社 | disk |
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