JPS6435518U - - Google Patents
Info
- Publication number
- JPS6435518U JPS6435518U JP12944887U JP12944887U JPS6435518U JP S6435518 U JPS6435518 U JP S6435518U JP 12944887 U JP12944887 U JP 12944887U JP 12944887 U JP12944887 U JP 12944887U JP S6435518 U JPS6435518 U JP S6435518U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- light beam
- detecting
- detection element
- astigmatism
- 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
- 238000001514 detection method Methods 0.000 claims description 17
- 201000009310 astigmatism Diseases 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944887U JPS6435518U (xx) | 1987-08-26 | 1987-08-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944887U JPS6435518U (xx) | 1987-08-26 | 1987-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6435518U true JPS6435518U (xx) | 1989-03-03 |
Family
ID=31383733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12944887U Pending JPS6435518U (xx) | 1987-08-26 | 1987-08-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6435518U (xx) |
-
1987
- 1987-08-26 JP JP12944887U patent/JPS6435518U/ja active Pending
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