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
GB1514517A
Inventor
Alexis Akinine
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Individual
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Individual
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Publication date
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Priority to GB1514517ApriorityCriticalpatent/GB118721A/en
Publication of GB118721ApublicationCriticalpatent/GB118721A/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
G03B35/00—Stereoscopic photography
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Projection Apparatus
(AREA)
Abstract
118,721. Akinine, A. Oct. 18, 1917. Optical-projection apparatus.-Kinematograph or other pictures are projected on to a frosted glass screen 3 and the image produced by a concave mirror 17 of the projected picture is viewed by reflection in a mirror 12. The mirror 17 is placed so that the screen 3 lies between it and its focus. The screen 3 may be carried by stays 7 hingedly mounted on a slide 5 movable in guides 6 on a table 1, and the mirror 12 may be carried by supports 11 pivotally and slidably mounted in slots in arms 8 hinged to the stays 7. The mirror 17 may be carried on a slide 14 in the same manner as the screen 3.
GB1514517A1917-10-181917-10-18An Improved Method of and Apparatus for Projecting Cinematographic Pictures and the like.
ExpiredGB118721A
(en)
An apparatus for cinematographic projection of various film systems within the same program, without the need for the displacement of the device, nor to change or modify the lens of the base objective (Machine-translation by Google Translate, not legally binding)
Improvements in or connected with kinematograph apparatus for the projection of picture images and for the centring of the pictures relatively to the lens system and thescreen