JPS49112621A - - Google Patents
Info
- Publication number
- JPS49112621A JPS49112621A JP48021288A JP2128873A JPS49112621A JP S49112621 A JPS49112621 A JP S49112621A JP 48021288 A JP48021288 A JP 48021288A JP 2128873 A JP2128873 A JP 2128873A JP S49112621 A JPS49112621 A JP S49112621A
- Authority
- JP
- Japan
- 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
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48021288A JPS49112621A (ja) | 1973-02-23 | 1973-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48021288A JPS49112621A (ja) | 1973-02-23 | 1973-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS49112621A true JPS49112621A (ja) | 1974-10-26 |
Family
ID=12050933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48021288A Pending JPS49112621A (ja) | 1973-02-23 | 1973-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS49112621A (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453945A (ja) * | 1990-06-21 | 1992-02-21 | Dainippon Printing Co Ltd | 映写スクリーン |
| WO2004109391A1 (ja) * | 2003-06-03 | 2004-12-16 | Dai Nippon Printing Co., Ltd. | フレネルレンズシート、透過型スクリーン及び背面投射型表示装置 |
-
1973
- 1973-02-23 JP JP48021288A patent/JPS49112621A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453945A (ja) * | 1990-06-21 | 1992-02-21 | Dainippon Printing Co Ltd | 映写スクリーン |
| WO2004109391A1 (ja) * | 2003-06-03 | 2004-12-16 | Dai Nippon Printing Co., Ltd. | フレネルレンズシート、透過型スクリーン及び背面投射型表示装置 |
| US7317572B2 (en) | 2003-06-03 | 2008-01-08 | Dai Nippon Printing Co., Ltd. | Fresnel lens sheet, rear projection screen and rear projection display |