JPS61185001U - - Google Patents
Info
- Publication number
- JPS61185001U JPS61185001U JP6952785U JP6952785U JPS61185001U JP S61185001 U JPS61185001 U JP S61185001U JP 6952785 U JP6952785 U JP 6952785U JP 6952785 U JP6952785 U JP 6952785U JP S61185001 U JPS61185001 U JP S61185001U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- curved surface
- fresnel
- lens curved
- focal length
- 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
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6952785U JPS61185001U (enExample) | 1985-05-10 | 1985-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6952785U JPS61185001U (enExample) | 1985-05-10 | 1985-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61185001U true JPS61185001U (enExample) | 1986-11-18 |
Family
ID=30605285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6952785U Pending JPS61185001U (enExample) | 1985-05-10 | 1985-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61185001U (enExample) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49130749A (enExample) * | 1973-04-18 | 1974-12-14 | ||
| JPS5062651A (enExample) * | 1973-10-05 | 1975-05-28 | ||
| JPS5075049A (enExample) * | 1973-11-02 | 1975-06-20 |
-
1985
- 1985-05-10 JP JP6952785U patent/JPS61185001U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49130749A (enExample) * | 1973-04-18 | 1974-12-14 | ||
| JPS5062651A (enExample) * | 1973-10-05 | 1975-05-28 | ||
| JPS5075049A (enExample) * | 1973-11-02 | 1975-06-20 |