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10 Cards in this Set

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  • Back
Define wavelength
the physical distance between two points exactly one cycle apart in a waveform
Define Frequency
Number of cycles in a given time period
Define Amplitude
The intensity of the wave
What are the two types of meters that measure light?
Incident Meters and Reflected meters
Define incident meters
a measure of light coming directly from a source (recorded in LUMENS, LUX, or FOOTCANDLES)
What does a reflected meter measure
light that bounces off of an object (expressed in FOOTLAMBERTS or NIT)
According to the Inverse Square Law, what happens when the distance from the light source is doubled?
Perceived illumination decreases by 75%
The higher the color temperature the _____the light
Bluer
The lower the color temperature the _____ the light
Redder
Define ambient light
any light in a presentation environment other than the light generated by the displayed image