FR2356177A1 - Ecran de projection - Google Patents
Ecran de projectionInfo
- Publication number
- FR2356177A1 FR2356177A1 FR7631332A FR7631332A FR2356177A1 FR 2356177 A1 FR2356177 A1 FR 2356177A1 FR 7631332 A FR7631332 A FR 7631332A FR 7631332 A FR7631332 A FR 7631332A FR 2356177 A1 FR2356177 A1 FR 2356177A1
- Authority
- FR
- France
- Prior art keywords
- screen
- cap
- spring
- roller
- tightly wound
- 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.)
- Withdrawn
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
Ecran de projection s'enroulant sur une tige et monté dans un étui. A son extrémité opposée à celle qui possède un ressort, la tige 3 est reliée à un couvercle 11 pouvant tourner et se deplacer axialement par rapport à l'étui 5 et comportant par exemple une cheville 14 qui coopère avec des trous 18 percés dans un dispositif 16 relié de façon fixe à l'étui 5, ce qui permet de bloquer en position relative les organes intéressés et de desserrer ainsi l'écran lorsqu'il est enroulé sur sa tige Application aux écrans pour diapositives et films de petit format munis d'un revêtement
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762628886 DE2628886A1 (de) | 1976-06-26 | 1976-06-26 | Projektionswand |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2356177A1 true FR2356177A1 (fr) | 1978-01-20 |
Family
ID=5981590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7631332A Withdrawn FR2356177A1 (fr) | 1976-06-26 | 1976-10-19 | Ecran de projection |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2628886A1 (fr) |
FR (1) | FR2356177A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002057588A2 (fr) * | 2001-01-16 | 2002-07-25 | Reddiplex Group Plc | Presentoirs |
WO2004097771A1 (fr) * | 2003-05-01 | 2004-11-11 | Kochan William | Dispositif d'affichage |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3115177C1 (de) * | 1981-04-15 | 1982-11-11 | Reflecta Gmbh Foto Film Projektion, 8540 Schwabach | Lichtbildwand |
DE4422279A1 (de) | 1994-06-25 | 1996-01-04 | Reflecta Gmbh Foto | Wickelrohr für eine Lichtbildwand |
CN112927619B (zh) * | 2021-01-29 | 2022-08-30 | 厦门天马微电子有限公司 | 一种滑卷显示装置 |
-
1976
- 1976-06-26 DE DE19762628886 patent/DE2628886A1/de active Pending
- 1976-10-19 FR FR7631332A patent/FR2356177A1/fr not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002057588A2 (fr) * | 2001-01-16 | 2002-07-25 | Reddiplex Group Plc | Presentoirs |
WO2002057588A3 (fr) * | 2001-01-16 | 2002-11-14 | Reddiplex Group Plc | Presentoirs |
GB2391685A (en) * | 2001-01-16 | 2004-02-11 | Reddiplex Group Plc | Display stands |
GB2391685B (en) * | 2001-01-16 | 2004-10-13 | Reddiplex Group Plc | Display stands |
WO2004097771A1 (fr) * | 2003-05-01 | 2004-11-11 | Kochan William | Dispositif d'affichage |
US7428792B2 (en) | 2003-05-01 | 2008-09-30 | William Kochan | Display device |
Also Published As
Publication number | Publication date |
---|---|
DE2628886A1 (de) | 1978-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |