FlickerFusionsfrequenz

FlickerFusionfrequenz, often abbreviated as FFF, refers to the temporal frequency at which a visual stimulus must be presented to be perceived as a continuous, non-flickering light. When a light source flickers rapidly, the individual flashes become indistinguishable to the human eye, and the light appears steady. The FlickerFusionfrequenz is the threshold at which this fusion of discrete light pulses into a continuous perception occurs. This phenomenon is a consequence of the persistence of vision, where the visual system retains an image for a short period after it has disappeared.

The FlickerFusionfrequenz varies among individuals and can be influenced by factors such as age, ambient light levels, and even the individual's level of attention. In general, it is higher in younger individuals and decreases with age. A typical FlickerFusionfrequenz for humans is around 50-90 Hz, meaning that a light flickering at these frequencies or higher will appear steady. This principle is utilized in various technologies, including film projection, where rapid presentation of still images creates the illusion of continuous motion, and in some types of lighting to avoid perceivable flicker. Understanding FlickerFusionfrequenz is important in fields such as display technology, visual perception research, and even in understanding certain visual phenomena like strobing effects.