LU48923A1 - - Google Patents
Info
- Publication number
- LU48923A1 LU48923A1 LU48923A LU48923A LU48923A1 LU 48923 A1 LU48923 A1 LU 48923A1 LU 48923 A LU48923 A LU 48923A LU 48923 A LU48923 A LU 48923A LU 48923 A1 LU48923 A1 LU 48923A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Clamps And Clips (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR980225A FR87109E (fr) | 1964-06-30 | 1964-06-30 | Procédé de fabrication d'un écran courbe et écran ainsi obtenu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU48923A1 true LU48923A1 (de) | 1965-08-26 |
Family
ID=8833607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU48923A LU48923A1 (de) | 1964-06-30 | 1965-06-26 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3384432A (de) |
| AT (1) | AT275909B (de) |
| BE (1) | BE666010A (de) |
| CH (1) | CH449998A (de) |
| DE (1) | DE1264099B (de) |
| ES (1) | ES314742A2 (de) |
| FR (1) | FR87109E (de) |
| GB (1) | GB1093639A (de) |
| LU (1) | LU48923A1 (de) |
| NL (1) | NL6508315A (de) |
| OA (1) | OA085E (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318589A (en) * | 1980-07-07 | 1982-03-09 | The Singer Company | Segmented curved screen construction for preserving a predefined curvature |
| US5098616A (en) * | 1990-11-19 | 1992-03-24 | Cae Electronics Ltd. | Method for forming a curved projection screen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1882829A (en) * | 1930-10-29 | 1932-10-18 | Bell Telephone Labor Inc | Relief picture viewing screen |
| US2476521A (en) * | 1947-09-22 | 1949-07-19 | Vitarama Corp | Screen for picture projections |
| FR1283342A (fr) * | 1960-12-22 | 1962-02-02 | Perfectionnements apportés aux écrans de projection, notamment pour le cinéma |
-
1964
- 1964-06-30 FR FR980225A patent/FR87109E/fr not_active Expired
-
1965
- 1965-06-23 CH CH917265A patent/CH449998A/fr unknown
- 1965-06-23 AT AT570365A patent/AT275909B/de active
- 1965-06-24 GB GB26892/65A patent/GB1093639A/en not_active Expired
- 1965-06-26 LU LU48923A patent/LU48923A1/xx unknown
- 1965-06-26 DE DEH56416A patent/DE1264099B/de active Pending
- 1965-06-28 ES ES0314742A patent/ES314742A2/es not_active Expired
- 1965-06-28 BE BE666010D patent/BE666010A/xx unknown
- 1965-06-28 US US467289A patent/US3384432A/en not_active Expired - Lifetime
- 1965-06-29 NL NL6508315A patent/NL6508315A/xx unknown
- 1965-06-29 OA OA52089A patent/OA085E/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6508315A (de) | 1965-12-31 |
| CH449998A (fr) | 1968-01-15 |
| OA085E (de) | 1970-12-15 |
| AT275909B (de) | 1969-11-10 |
| US3384432A (en) | 1968-05-21 |
| FR87109E (fr) | 1966-06-17 |
| ES314742A2 (es) | 1966-05-16 |
| BE666010A (de) | 1965-10-18 |
| GB1093639A (en) | 1967-12-06 |
| DE1264099B (de) | 1968-03-21 |