ES189243Y - Marco para pantalla de imagen. - Google Patents
Marco para pantalla de imagen.Info
- Publication number
- ES189243Y ES189243Y ES1974189243U ES189243U ES189243Y ES 189243 Y ES189243 Y ES 189243Y ES 1974189243 U ES1974189243 U ES 1974189243U ES 189243 U ES189243 U ES 189243U ES 189243 Y ES189243 Y ES 189243Y
- Authority
- ES
- Spain
- Prior art keywords
- frame
- image screen
- screen
- image
- 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
- G03B21/58—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)
- Artificial Filaments (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT31279/72A IT970204B (it) | 1972-11-03 | 1972-11-03 | Cornice pneumatica per schermo per proiezione di pellicole cinematografiche e diapositive |
Publications (2)
Publication Number | Publication Date |
---|---|
ES189243U ES189243U (es) | 1974-03-01 |
ES189243Y true ES189243Y (es) | 1974-10-01 |
Family
ID=11233393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1974189243U Expired ES189243Y (es) | 1972-11-03 | 1973-03-02 | Marco para pantalla de imagen. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2307880A1 (es) |
ES (1) | ES189243Y (es) |
IT (1) | IT970204B (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4323301A (en) * | 1980-05-14 | 1982-04-06 | Donald Spector | Collapsible rear/front projection screen assembly |
US4339175A (en) * | 1980-07-18 | 1982-07-13 | Asthausbolagen Hb Astero & Stockhaus | Projection screen |
WO2011050489A1 (zh) * | 2009-10-26 | 2011-05-05 | 长绩科技股份有限公司 | 投影幕 |
US11305209B2 (en) * | 2019-03-07 | 2022-04-19 | Universal City Studios Llc | Actuatable surface techniques |
-
1972
- 1972-11-03 IT IT31279/72A patent/IT970204B/it active
-
1973
- 1973-02-17 DE DE19732307880 patent/DE2307880A1/de active Pending
- 1973-03-02 ES ES1974189243U patent/ES189243Y/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2307880A1 (de) | 1974-05-09 |
ES189243U (es) | 1974-03-01 |
IT970204B (it) | 1974-04-10 |
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