GB177192A - Improvements in or relating to screens for use with cinematograph projectors - Google Patents
Improvements in or relating to screens for use with cinematograph projectorsInfo
- Publication number
- GB177192A GB177192A GB2944420A GB2944420A GB177192A GB 177192 A GB177192 A GB 177192A GB 2944420 A GB2944420 A GB 2944420A GB 2944420 A GB2944420 A GB 2944420A GB 177192 A GB177192 A GB 177192A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screens
- relating
- cinematograph projectors
- cinematograph
- projectors
- 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
- G03B21/606—Projection screens characterised by the nature of the surface for relief projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2944420A GB177192A (en) | 1920-10-19 | 1920-10-19 | Improvements in or relating to screens for use with cinematograph projectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2944420A GB177192A (en) | 1920-10-19 | 1920-10-19 | Improvements in or relating to screens for use with cinematograph projectors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB177192A true GB177192A (en) | 1922-03-20 |
Family
ID=10291648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2944420A Expired GB177192A (en) | 1920-10-19 | 1920-10-19 | Improvements in or relating to screens for use with cinematograph projectors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB177192A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1125678B (en) * | 1959-05-08 | 1962-03-15 | Nat Lab And Mfg Corp | Viewing device for viewing prints on a web |
-
1920
- 1920-10-19 GB GB2944420A patent/GB177192A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1125678B (en) * | 1959-05-08 | 1962-03-15 | Nat Lab And Mfg Corp | Viewing device for viewing prints on a web |
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