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Priority to FR797155ApriorityCriticalpatent/FR1236602A/fr
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Publication of FR1236602ApublicationCriticalpatent/FR1236602A/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
G03B21/602—Lenticular screens
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Physics & Mathematics
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General Physics & Mathematics
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FR797155A1959-06-091959-06-09Procédé pour l'obtention d'écrans de projection à rendement lumineux élevé et écrans obtenus suivant ce procédé
ExpiredFR1236602A
(fr)
Procédé d'obtention d'un magasin de film présentant une indication représentative d'une caractéristique du film et magasin obtenu par ce procédé