JPS63101901U - - Google Patents
Info
- Publication number
- JPS63101901U JPS63101901U JP1986203346U JP20334686U JPS63101901U JP S63101901 U JPS63101901 U JP S63101901U JP 1986203346 U JP1986203346 U JP 1986203346U JP 20334686 U JP20334686 U JP 20334686U JP S63101901 U JPS63101901 U JP S63101901U
- Authority
- JP
- Japan
- Prior art keywords
- light
- fresnel lens
- condensing
- refractive surfaces
- stepped portion
- 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
- Surface Treatment Of Optical Elements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986203346U JPS63101901U (cs) | 1986-12-24 | 1986-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986203346U JPS63101901U (cs) | 1986-12-24 | 1986-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101901U true JPS63101901U (cs) | 1988-07-02 |
Family
ID=31168587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986203346U Pending JPS63101901U (cs) | 1986-12-24 | 1986-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101901U (cs) |
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1986
- 1986-12-24 JP JP1986203346U patent/JPS63101901U/ja active Pending