JPH042321U - - Google Patents
Info
- Publication number
- JPH042321U JPH042321U JP4156390U JP4156390U JPH042321U JP H042321 U JPH042321 U JP H042321U JP 4156390 U JP4156390 U JP 4156390U JP 4156390 U JP4156390 U JP 4156390U JP H042321 U JPH042321 U JP H042321U
- Authority
- JP
- Japan
- Prior art keywords
- optical path
- light beam
- astigmatism lens
- lens
- aperture
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4156390U JPH042321U (en, 2012) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4156390U JPH042321U (en, 2012) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042321U true JPH042321U (en, 2012) | 1992-01-09 |
Family
ID=31552335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4156390U Pending JPH042321U (en, 2012) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042321U (en, 2012) |
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1990
- 1990-04-20 JP JP4156390U patent/JPH042321U/ja active Pending