JPH01149674U - - Google Patents
Info
- Publication number
- JPH01149674U JPH01149674U JP4644188U JP4644188U JPH01149674U JP H01149674 U JPH01149674 U JP H01149674U JP 4644188 U JP4644188 U JP 4644188U JP 4644188 U JP4644188 U JP 4644188U JP H01149674 U JPH01149674 U JP H01149674U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- wide
- sketching
- shape
- fresnel lens
- 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
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4644188U JPH01149674U (en]) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4644188U JPH01149674U (en]) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149674U true JPH01149674U (en]) | 1989-10-17 |
Family
ID=31272707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4644188U Pending JPH01149674U (en]) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149674U (en]) |
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1988
- 1988-04-06 JP JP4644188U patent/JPH01149674U/ja active Pending