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
Application number
GB21882/20A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOHN EMLINGTON DARLING
Original Assignee
JOHN EMLINGTON DARLING
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 JOHN EMLINGTON DARLINGfiledCriticalJOHN EMLINGTON DARLING
Publication of GB161545ApublicationCriticalpatent/GB161545A/en
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)
GB21882/20A1920-04-101920-07-21Improvements in cinematographic projection screens
ExpiredGB161545A
(en)