JPS61106901U - - Google Patents
Info
- Publication number
- JPS61106901U JPS61106901U JP19216184U JP19216184U JPS61106901U JP S61106901 U JPS61106901 U JP S61106901U JP 19216184 U JP19216184 U JP 19216184U JP 19216184 U JP19216184 U JP 19216184U JP S61106901 U JPS61106901 U JP S61106901U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- micro fresnel
- ring
- gradient index
- ground
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19216184U JPS61106901U (de) | 1984-12-20 | 1984-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19216184U JPS61106901U (de) | 1984-12-20 | 1984-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61106901U true JPS61106901U (de) | 1986-07-07 |
Family
ID=30749587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19216184U Pending JPS61106901U (de) | 1984-12-20 | 1984-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106901U (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5114267A (ja) * | 1974-07-27 | 1976-02-04 | Tokyo Tungsten Kk | Handotaizairyoshijokiban |
| JPS54156651A (en) * | 1978-05-30 | 1979-12-10 | Rca Corp | Fresnel lens |
-
1984
- 1984-12-20 JP JP19216184U patent/JPS61106901U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5114267A (ja) * | 1974-07-27 | 1976-02-04 | Tokyo Tungsten Kk | Handotaizairyoshijokiban |
| JPS54156651A (en) * | 1978-05-30 | 1979-12-10 | Rca Corp | Fresnel lens |