[5.9.19.2]
The ratio of visual task contrast with a given lighting environment to the contrast with sphere illumination.
This term is obsolete.
NOTE: This definition was changed in ANSI/IES RP-16-17 Addendum 4.
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[5.9.19.2]
The ratio of visual task contrast with a given lighting environment to the contrast with sphere illumination.
This term is obsolete.
NOTE: This definition was changed in ANSI/IES RP-16-17 Addendum 4.
« Back to Definitions Index