JPS61140346U - - Google Patents
Info
- Publication number
- JPS61140346U JPS61140346U JP1985024446U JP2444685U JPS61140346U JP S61140346 U JPS61140346 U JP S61140346U JP 1985024446 U JP1985024446 U JP 1985024446U JP 2444685 U JP2444685 U JP 2444685U JP S61140346 U JPS61140346 U JP S61140346U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- screen
- utility
- model registration
- straight
- 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
- 239000000470 constituent Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024446U JPS61140346U (en]) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024446U JPS61140346U (en]) | 1985-02-22 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140346U true JPS61140346U (en]) | 1986-08-30 |
Family
ID=30518604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985024446U Pending JPS61140346U (en]) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140346U (en]) |
-
1985
- 1985-02-22 JP JP1985024446U patent/JPS61140346U/ja active Pending
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