JPH01146315U - - Google Patents
Info
- Publication number
- JPH01146315U JPH01146315U JP3826388U JP3826388U JPH01146315U JP H01146315 U JPH01146315 U JP H01146315U JP 3826388 U JP3826388 U JP 3826388U JP 3826388 U JP3826388 U JP 3826388U JP H01146315 U JPH01146315 U JP H01146315U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- information
- fixed
- light shielding
- track
- 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 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Optical Recording Or Reproduction (AREA)
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3826388U JPH01146315U (el) | 1988-03-25 | 1988-03-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3826388U JPH01146315U (el) | 1988-03-25 | 1988-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01146315U true JPH01146315U (el) | 1989-10-09 |
Family
ID=31264820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3826388U Pending JPH01146315U (el) | 1988-03-25 | 1988-03-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01146315U (el) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03187024A (ja) * | 1989-12-15 | 1991-08-15 | Sony Corp | 対物レンズ駆動装置 |
-
1988
- 1988-03-25 JP JP3826388U patent/JPH01146315U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03187024A (ja) * | 1989-12-15 | 1991-08-15 | Sony Corp | 対物レンズ駆動装置 |
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