Assertion: flicker | /r/HasProperty | visible change
Facets:
value: in brightness between cycles
type: TEMPORAL
value: directly
type: MANNER
value: to the human eye
type: TRANSITIVE-OBJECT
value: due to external causes such as due
type: CAUSE
value: in brightness of a light source
type: OTHER
Source sentences:
text: Flicker is a directly visible change in brightness of a light source which can be due to fluctuations of the light source itself, or due to external causes such as due to rapid fluctuations in the voltage of the power supply (power-line flicker) or incompatibility with an external dimmer.
text: Flicker that is visible to the human eye will operate at a frequency of up to 80 Hz.
text: The perceptibility value calculation and scaling algorithm were chosen such that a P value of 1.0 corresponds to a level at which 50% of test subjects found the flicker to be both noticeable and irritating.
text: Flicker is a visible change in brightness between cycles displayed on video displays.