JPH0554081B2 - - Google Patents
Info
- Publication number
- JPH0554081B2 JPH0554081B2 JP60258368A JP25836885A JPH0554081B2 JP H0554081 B2 JPH0554081 B2 JP H0554081B2 JP 60258368 A JP60258368 A JP 60258368A JP 25836885 A JP25836885 A JP 25836885A JP H0554081 B2 JPH0554081 B2 JP H0554081B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- zone
- wedge
- optical axis
- radius
- 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 - Fee Related
Links
Landscapes
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25836885A JPS62118304A (ja) | 1985-11-18 | 1985-11-18 | フレネル状レンズ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25836885A JPS62118304A (ja) | 1985-11-18 | 1985-11-18 | フレネル状レンズ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62118304A JPS62118304A (ja) | 1987-05-29 |
| JPH0554081B2 true JPH0554081B2 (de) | 1993-08-11 |
Family
ID=17319271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25836885A Granted JPS62118304A (ja) | 1985-11-18 | 1985-11-18 | フレネル状レンズ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62118304A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426703U (de) * | 1987-08-07 | 1989-02-15 | ||
| US5160192A (en) * | 1988-03-16 | 1992-11-03 | Asahi Kogaku Kogyo Kabushiki Kaisha | Illuminating instrument |
| US5161057A (en) * | 1988-09-12 | 1992-11-03 | Johnson Kenneth C | Dispersion-compensated fresnel lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578441A (en) * | 1980-06-18 | 1982-01-16 | Matsushita Electric Ind Co Ltd | Production of ion selective electrode |
-
1985
- 1985-11-18 JP JP25836885A patent/JPS62118304A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62118304A (ja) | 1987-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |