JPH0296628U - - Google Patents
Info
- Publication number
- JPH0296628U JPH0296628U JP394189U JP394189U JPH0296628U JP H0296628 U JPH0296628 U JP H0296628U JP 394189 U JP394189 U JP 394189U JP 394189 U JP394189 U JP 394189U JP H0296628 U JPH0296628 U JP H0296628U
- Authority
- JP
- Japan
- Prior art keywords
- beam splitter
- polarizing beam
- magneto
- optical
- optical disk
- 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 10
- 201000009310 astigmatism Diseases 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP394189U JPH0296628U (OSRAM) | 1989-01-18 | 1989-01-18 | |
| US07/841,886 US5199013A (en) | 1989-01-18 | 1992-02-25 | Optical head apparatus applicable to optical disc apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP394189U JPH0296628U (OSRAM) | 1989-01-18 | 1989-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0296628U true JPH0296628U (OSRAM) | 1990-08-01 |
Family
ID=31206018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP394189U Pending JPH0296628U (OSRAM) | 1989-01-18 | 1989-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0296628U (OSRAM) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62226454A (ja) * | 1986-03-27 | 1987-10-05 | Nec Corp | 光磁気記録再生装置 |
| JPS63181145A (ja) * | 1987-01-21 | 1988-07-26 | Hitachi Ltd | 磁気光学ヘツド |
| JPH01315703A (ja) * | 1988-03-25 | 1989-12-20 | Hitachi Ltd | 光学部品とそれを用いた光学ヘッド |
-
1989
- 1989-01-18 JP JP394189U patent/JPH0296628U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62226454A (ja) * | 1986-03-27 | 1987-10-05 | Nec Corp | 光磁気記録再生装置 |
| JPS63181145A (ja) * | 1987-01-21 | 1988-07-26 | Hitachi Ltd | 磁気光学ヘツド |
| JPH01315703A (ja) * | 1988-03-25 | 1989-12-20 | Hitachi Ltd | 光学部品とそれを用いた光学ヘッド |
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