Abstract
In normal conditions, the Critical Flicker Frequency
is usually 60Hz. But in some special conditions, such as
low spatial frequency and high contrast between frames, these
special conditions have high probability to occur in some TPVMbased
applications. So it’s extremely important to verify if a visual
signal with a combination of temporal and spatial frequency can
be recognize by human eyes. Based on the research in the last
paper ’ ’Window of Visibility’ inspired security lighting system’,
this paper introduces the measuring method of WoV of human
eyes. In this paper we will measure critical flicker frequency in
low spatial frequency and high contrast conditions, and we can
witness a different conclusion from the normal conditions.
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