rotating-mirror system
Quick Summary
The rotating-mirror system is a high-speed cinematography technology used to record phenomena that occur too rapidly for normal cameras. This system can achieve frame rates of up to 10 million frames per second by reflecting a primary image through a series of individual relay lenses onto stationary film. This allows for the study of extremely fast events like explosions and plasmas.1
Early motion-picture technology, like the Kinetoscope invented by Thomas Edison and William Dickson, used a spinning wheel as a shutter to create the illusion of motion from a rapid succession of still images. The fundamental principle of motion pictures relies on the human brain perceiving continuous movement from images displayed at a rate above 15 frames per second.23
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motion-picture technologyIntroduction of sound…recording was modulated by a rotating mirror and the slit was parallel to the edge of the film; reproduction employed the perpendicular slit of the variable density sound track. Minor problems of incompatibility between recording and reproduction were solved in late 1928 when the track was narrowed down to stay…
Read More…recording was modulated by a rotating mirror and the slit was parallel to the edge of the film; reproduction employed the perpendicular slit of the variable density sound track. Minor problems of incompatibility between recording and reproduction were solved in late 1928 when the track was narrowed down to stay…
Read More- motion-picture technologyPrincipal parts
…reach the film is the rotating mirror shutter employed in the Arriflex camera. Light is reflected into the viewfinder only when the shutter blade covers the film as it advances to the next frame. This arrangement, however, is not wholly free from objections. Chief among these is that the arrangement…
Read More…reach the film is the rotating mirror shutter employed in the Arriflex camera. Light is reflected into the viewfinder only when the shutter blade covers the film as it advances to the next frame. This arrangement, however, is not wholly free from objections. Chief among these is that the arrangement…
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