FR894186A - écran de projection - Google Patents
écran de projectionInfo
- Publication number
- FR894186A FR894186A FR894186DA FR894186A FR 894186 A FR894186 A FR 894186A FR 894186D A FR894186D A FR 894186DA FR 894186 A FR894186 A FR 894186A
- Authority
- FR
- France
- Prior art keywords
- projection screen
- projection
- screen
- 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.)
- Expired
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
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE894186X | 1942-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR894186A true FR894186A (fr) | 1944-12-15 |
Family
ID=6847017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR894186D Expired FR894186A (fr) | 1942-06-10 | 1943-04-22 | écran de projection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR894186A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126788A (en) * | 1964-03-31 | Projection screens | ||
US3295910A (en) * | 1963-04-06 | 1967-01-03 | Hourdiaux Jules | Curved projection screens |
US3348897A (en) * | 1964-04-03 | 1967-10-24 | Hourdiaux Jules | Curved screens for projecting motion picture films or the like |
-
1943
- 1943-04-22 FR FR894186D patent/FR894186A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126788A (en) * | 1964-03-31 | Projection screens | ||
US3295910A (en) * | 1963-04-06 | 1967-01-03 | Hourdiaux Jules | Curved projection screens |
US3348897A (en) * | 1964-04-03 | 1967-10-24 | Hourdiaux Jules | Curved screens for projecting motion picture films or the like |
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