Stroboscopic effect
Videos
The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous rotational or other cyclic motion is represented by a series of short or instantaneous samples at a sampli
Figure 1: Stroboscopic effect resulting from a moving screwdriver lit with a square-waveform modulated light source with a modulation frequency of 100 Hz, duty cycle of 50 % and 100 % modulation (SVM = 4,9); small photo inset shows absence of stroboscopic effect if screwdriver is not moved
Figure 2: Stroboscopic effect contrast threshold function (see Visibility)
Figure 3: Generic setup to test lighting equipment for its stroboscopic effect performance
Beta movement
Videos
The term beta movement is used for the optical illusion of apparent motion in which the very short projection of one figure and a subsequent very short projection of a more or less similar figure in a
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