JPS5674432U - - Google Patents
Info
- Publication number
- JPS5674432U JPS5674432U JP1979155265U JP15526579U JPS5674432U JP S5674432 U JPS5674432 U JP S5674432U JP 1979155265 U JP1979155265 U JP 1979155265U JP 15526579 U JP15526579 U JP 15526579U JP S5674432 U JPS5674432 U JP S5674432U
- 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.)
- Granted
Links
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979155265U JPH0128500Y2 (it) | 1979-11-08 | 1979-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979155265U JPH0128500Y2 (it) | 1979-11-08 | 1979-11-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5674432U true JPS5674432U (it) | 1981-06-18 |
| JPH0128500Y2 JPH0128500Y2 (it) | 1989-08-30 |
Family
ID=29667305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979155265U Expired JPH0128500Y2 (it) | 1979-11-08 | 1979-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0128500Y2 (it) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175677U (it) * | 1984-10-22 | 1986-05-21 | ||
| JP2004109300A (ja) * | 2002-09-17 | 2004-04-08 | Ricoh Co Ltd | 背面投射用スクリーンおよび背面投射型表示装置 |
| JP2008506154A (ja) * | 2004-07-06 | 2008-02-28 | ルーミン・オズ株式会社 | 全反射フレネルレンズおよび装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4877830A (it) * | 1971-12-15 | 1973-10-19 | ||
| JPS5189419A (it) * | 1975-02-03 | 1976-08-05 |
-
1979
- 1979-11-08 JP JP1979155265U patent/JPH0128500Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4877830A (it) * | 1971-12-15 | 1973-10-19 | ||
| JPS5189419A (it) * | 1975-02-03 | 1976-08-05 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175677U (it) * | 1984-10-22 | 1986-05-21 | ||
| JP2004109300A (ja) * | 2002-09-17 | 2004-04-08 | Ricoh Co Ltd | 背面投射用スクリーンおよび背面投射型表示装置 |
| JP2008506154A (ja) * | 2004-07-06 | 2008-02-28 | ルーミン・オズ株式会社 | 全反射フレネルレンズおよび装置 |
| JP4713583B2 (ja) * | 2004-07-06 | 2011-06-29 | ルーミン・オズ株式会社 | プロジェクションスクリーン装置およびプロジェクションテレビジョンシステム |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0128500Y2 (it) | 1989-08-30 |