JPS6245297Y2 - - Google Patents
Info
- Publication number
- JPS6245297Y2 JPS6245297Y2 JP18561781U JP18561781U JPS6245297Y2 JP S6245297 Y2 JPS6245297 Y2 JP S6245297Y2 JP 18561781 U JP18561781 U JP 18561781U JP 18561781 U JP18561781 U JP 18561781U JP S6245297 Y2 JPS6245297 Y2 JP S6245297Y2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- movable coil
- light source
- laser light
- motor
- 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 6
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18561781U JPS5890536U (ja) | 1981-12-11 | 1981-12-11 | 自動焦点調整装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18561781U JPS5890536U (ja) | 1981-12-11 | 1981-12-11 | 自動焦点調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5890536U JPS5890536U (ja) | 1983-06-18 |
JPS6245297Y2 true JPS6245297Y2 (zh) | 1987-12-03 |
Family
ID=29986831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18561781U Granted JPS5890536U (ja) | 1981-12-11 | 1981-12-11 | 自動焦点調整装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5890536U (zh) |
-
1981
- 1981-12-11 JP JP18561781U patent/JPS5890536U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5890536U (ja) | 1983-06-18 |
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