IEVref:
845-31-105
ID:
Language:
en
Status:
Standard
Term:
contrast control system
Synonym1:
Synonym2:
Synonym3:
Symbol:
Definition:
system that maintains the contrast of a sign's legend and its immediate background to achieve a legibility performance within prescribed limits under varying ambient light conditions
Publication
date
:
2020-12
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
system that maintains the contrast of a sign's legend and its immediate background to achieve a legibility performance within prescribed limits under varying ambient light conditions