What is the normal CFF (critical flicker fusion) rate for a human?
35-40Hz
Which law describes…as television sets were made larger, manufactures had to increase frequency rates from 60Hz to 120Hz?
granit-harper law that states CFF’s increase linearly with the log of stimulus area.
Which law describes that CFF’s increase linearly with log of luminance of flickering background stimulus?
ferry-porter law
what does this describe…….>light with fixed luminance appears brighter when flashed for 50-100ms compared to longer or shorter flashes…aka “lighthouse effect”
the broca-sulzer effect