The photosensitive diode circuit

Published:2011/7/25 20:35:00 Author:Christina | Keyword: photosensitive diode | From:SeekIC

(a) is the black & white changing voice signal soundtrack which is recorded on the film, it is the sound motion picture. When the machinery gear drives the synchronous holes of the movie film, the light gets through the pictures, and is amplified by the projection lens to project the picture on the projection screen, this is the activity movies. When the film is moving, the soundtrack is moving too; the light which is sent out by the incentive bulb changes into a beam of light through the 0.05mm slit, and it projects to the soundtrack through the lens group. (b) is the photosensitive diode circuit of the motion-picture machine.



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