JPH0332726U - - Google Patents
Info
- Publication number
- JPH0332726U JPH0332726U JP8912589U JP8912589U JPH0332726U JP H0332726 U JPH0332726 U JP H0332726U JP 8912589 U JP8912589 U JP 8912589U JP 8912589 U JP8912589 U JP 8912589U JP H0332726 U JPH0332726 U JP H0332726U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- pickup device
- optical pickup
- shaped notch
- light beam
- 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
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8912589U JPH0332726U (ko) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8912589U JPH0332726U (ko) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332726U true JPH0332726U (ko) | 1991-03-29 |
Family
ID=31638720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8912589U Pending JPH0332726U (ko) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332726U (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006252773A (ja) * | 2006-06-26 | 2006-09-21 | Hitachi Media Electoronics Co Ltd | 光ピックアップ及び光ディスク装置 |
-
1989
- 1989-07-31 JP JP8912589U patent/JPH0332726U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006252773A (ja) * | 2006-06-26 | 2006-09-21 | Hitachi Media Electoronics Co Ltd | 光ピックアップ及び光ディスク装置 |
| JP4625788B2 (ja) * | 2006-06-26 | 2011-02-02 | 株式会社日立メディアエレクトロニクス | 光ピックアップ及び光ディスク装置 |
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