JPS637949Y2 - - Google Patents
Info
- Publication number
- JPS637949Y2 JPS637949Y2 JP18040081U JP18040081U JPS637949Y2 JP S637949 Y2 JPS637949 Y2 JP S637949Y2 JP 18040081 U JP18040081 U JP 18040081U JP 18040081 U JP18040081 U JP 18040081U JP S637949 Y2 JPS637949 Y2 JP S637949Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- beam splitter
- cylindrical lens
- reflected
- wavelength plate
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 29
- 201000009310 astigmatism Diseases 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18040081U JPS5884632U (ja) | 1981-12-03 | 1981-12-03 | 光学ヘツド |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18040081U JPS5884632U (ja) | 1981-12-03 | 1981-12-03 | 光学ヘツド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5884632U JPS5884632U (ja) | 1983-06-08 |
| JPS637949Y2 true JPS637949Y2 (en]) | 1988-03-09 |
Family
ID=29976956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18040081U Granted JPS5884632U (ja) | 1981-12-03 | 1981-12-03 | 光学ヘツド |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884632U (en]) |
-
1981
- 1981-12-03 JP JP18040081U patent/JPS5884632U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5884632U (ja) | 1983-06-08 |
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