Journal of the Society of Motion Picture and Television Engineers (1950-1954)

Record Details:

Title:
Journal of the Society of Motion Picture and Television Engineers
Date:
1950-1954
Publisher:
Easton, Pa. : The Society
Volume:
Journal of the Society of Motion Picture and Television Engineers
Leaf #:
000141
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Date Added:
July 19, 2022
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FIRST SURFACE MIRROR OBJECTIVE LENS HOUSING OF \ •* ^ . OPTICAL SYSTEM V^J^ Xl » \ \ ULIC "-HSLRVOIR Fig. 1. The Isotransport camera developed at Battelle. .SUBJECT OBJECTIVE LENS FIRST REFOCUSING LENS SECOND REFOCUSING LENS_ FILM AND FINAL IMAGE Fig. 2. Simplified schematic diagram of optical system of Isotran camera in perspective. to the problem of transmitting mechanical power into an evacuated space. The problem of drive is entirely one of acceleration to operating speed within a reasonable time, against the forces of inertia and windage. After operating speed is reached, the driving power is shut off and the entire series of pictures is exposed immediately. After the pictures are exposed, the electric motor and the vane pump are stopped, and the hydraulic piston motor is allowed to operate as a pump. Rapid deceleration is then achieved by constriction of the flow of fluid in the discharge line from the hydraulic piston motor. Also contained within the hydraulicmotor housing is a tachometer generator, connected with an indicator on the instrument panel to show speed in rpm. 132 February 1953 Journal of the SMPTE Vol.60