[8.6.6]
A line on a surface that shows all the points where the luminance is the same for a given position of an observer and light source(s) in relation to the surface.
« Back to Definitions Index[8.6.6]
A line on a surface that shows all the points where the luminance is the same for a given position of an observer and light source(s) in relation to the surface.
« Back to Definitions IndexIlluminating Engineering Society
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