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.)
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EUREKA SCREEN Co Inc
Original Assignee
EUREKA SCREEN Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EUREKA SCREEN Co IncfiledCriticalEUREKA SCREEN Co Inc
Application grantedgrantedCritical
Publication of FR501627ApublicationCriticalpatent/FR501627A/fr
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)
FR501627A1919-07-111919-07-11Perfectionnements aux écrans pour vues animées
ExpiredFR501627A
(fr)