TECHNIQUE FOR ANIMATION OF FILM STRIPS OF A 25- IMAGE FRAMING CAMERA

Abstract

IN THE STUDY OF DETONATION PHENOMENA AND OTHER RAPID EVENTS, SPECIAL HIGH SPEED CAMERAS ARE NECESSARY TO PHOTOGRAPH PROCESSES THAT OCCUR IN TIMES OF THE ORDER OF MICROSECONDS. Running at high speed, a framing camera photographs a series of 25 consecutive pictures at an exposure time of 0.2 microsec. per frame and a frame interval of 0.8 microsec. The 25 exposures are thus completed in 20 microseconds. The frame size and position of each exposure on the 40-in. strip of 35mm film are such that the film is not suitable for projection in any standard equipment. A system is described for animating a series of high speed frames, and projecting the result as a motion picture with a time magnification of about 200,000 thereby allowing a viewer to grasp more readily time and space relationships of the high speed event under study. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1961
Accession Number
AD0260050

Entities

People

  • A.j. Kreiss
  • V.m. Boyle

Organizations

  • Ballistic Research Laboratory

Tags

DTIC Thesaurus Topics

  • Cameras
  • Detonations
  • High Speed Cameras
  • Images
  • Intervals
  • Magnification
  • Mechanical Equipment
  • Microsecond Time
  • Motion Pictures
  • Optical Equipment
  • Photographic Materials
  • Photographs
  • Photography
  • Standards

Readers

  • Database Systems and Applications
  • Image Processing and Computer Vision.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Space
  • Space - Space Objects