JPS62176904U - - Google Patents
Info
- Publication number
- JPS62176904U JPS62176904U JP6583986U JP6583986U JPS62176904U JP S62176904 U JPS62176904 U JP S62176904U JP 6583986 U JP6583986 U JP 6583986U JP 6583986 U JP6583986 U JP 6583986U JP S62176904 U JPS62176904 U JP S62176904U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- lens step
- refractive
- reflective
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583986U JPS62176904U (un) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583986U JPS62176904U (un) | 1986-04-28 | 1986-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62176904U true JPS62176904U (un) | 1987-11-10 |
Family
ID=30903286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6583986U Pending JPS62176904U (un) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62176904U (un) |
-
1986
- 1986-04-28 JP JP6583986U patent/JPS62176904U/ja active Pending