Gigahertz-Optik GmbH
An der Kälberweide 12
82299 Türkenfeld / Germany
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Luminance Measurement
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Spot Luminance is measured within a section of a luminous area. Luminance Difference is the difference of two neighboring sectors within a light emitting area. Luminance Contrast specifies the ratio of the display luminance to ambient luminance and is an important parameter for the quality of work place illumination.
Luminance Contrast Measurement of Displays Under Hemispherical Incident Lighting Conditions.