Accession Number : ADD005101

Title :   Phase Controlled Shuttering System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Silberberg,George G ; Keller,Pat N ; White,Richard O

Report Date : 05 May 1978

Pagination or Media Count : 25

Abstract : This document describes a shuttering servo system which is phase synchronized to the vertical retrace time of a television camera. Circuitry is provided to lock the leading edge of the signal from a photo detector on a disc shutter motor shaft to the leading edge of the camera's vertical drive output. A form of tachometer feedback is used to stabilize the circuit. (Author)

Descriptors :   *Patent applications, *Shutters(Optics), *Television cameras, Synchronization(Electronics), Phase control, Timing circuits, High speed cameras, High resolution

Subject Categories : Photography
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE