JPS6190029U - - Google Patents
Info
- Publication number
- JPS6190029U JPS6190029U JP17556884U JP17556884U JPS6190029U JP S6190029 U JPS6190029 U JP S6190029U JP 17556884 U JP17556884 U JP 17556884U JP 17556884 U JP17556884 U JP 17556884U JP S6190029 U JPS6190029 U JP S6190029U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- lens
- grating
- light beam
- information
- 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 8
- 230000010365 information processing Effects 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000012780 transparent material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
- Lens Barrels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17556884U JPS6190029U (ko) | 1984-11-19 | 1984-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17556884U JPS6190029U (ko) | 1984-11-19 | 1984-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6190029U true JPS6190029U (ko) | 1986-06-11 |
Family
ID=30733169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17556884U Pending JPS6190029U (ko) | 1984-11-19 | 1984-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6190029U (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH021109A (ja) * | 1987-10-13 | 1990-01-05 | Theodore R Whitney | 高解像光学系 |
-
1984
- 1984-11-19 JP JP17556884U patent/JPS6190029U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH021109A (ja) * | 1987-10-13 | 1990-01-05 | Theodore R Whitney | 高解像光学系 |
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