IT8419727A0 - Schermo per proiezioni, dotato di intelaiatura gonfiabile. - Google Patents
Schermo per proiezioni, dotato di intelaiatura gonfiabile.Info
- Publication number
- IT8419727A0 IT8419727A0 IT8419727A IT1972784A IT8419727A0 IT 8419727 A0 IT8419727 A0 IT 8419727A0 IT 8419727 A IT8419727 A IT 8419727A IT 1972784 A IT1972784 A IT 1972784A IT 8419727 A0 IT8419727 A0 IT 8419727A0
- Authority
- IT
- Italy
- Prior art keywords
- projection screen
- inflatable frame
- inflatable
- frame
- projection
- Prior art date
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
- G03B21/585—Inflatable screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8419727A IT8419727A0 (it) | 1984-02-21 | 1984-02-21 | Schermo per proiezioni, dotato di intelaiatura gonfiabile. |
GB08410626A GB2154762A (en) | 1984-02-21 | 1984-04-26 | Projection screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8419727A IT8419727A0 (it) | 1984-02-21 | 1984-02-21 | Schermo per proiezioni, dotato di intelaiatura gonfiabile. |
Publications (1)
Publication Number | Publication Date |
---|---|
IT8419727A0 true IT8419727A0 (it) | 1984-02-21 |
Family
ID=11160696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8419727A IT8419727A0 (it) | 1984-02-21 | 1984-02-21 | Schermo per proiezioni, dotato di intelaiatura gonfiabile. |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2154762A (it) |
IT (1) | IT8419727A0 (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2206281A (en) * | 1987-06-02 | 1989-01-05 | Thomas Richard Mervyn Mason | Picture mounts |
US7446937B2 (en) * | 2003-09-29 | 2008-11-04 | Poretskin Steven M | Inflatable projection/imaging screen structure |
CN112859504B (zh) * | 2020-12-31 | 2022-04-22 | 成都极米科技股份有限公司 | 幕布升降装置、方法及投影仪 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB805216A (en) * | 1956-02-16 | 1958-12-03 | Gaetan Jayle | Improvements in projection screens |
CH412391A (de) * | 1963-11-01 | 1966-04-30 | Ganz & Co | Projektionseinrichtung |
-
1984
- 1984-02-21 IT IT8419727A patent/IT8419727A0/it unknown
- 1984-04-26 GB GB08410626A patent/GB2154762A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8410626D0 (en) | 1984-05-31 |
GB2154762A (en) | 1985-09-11 |
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