The Helmholtz-Kohlrausch Effect
In many situations the perceived brightness of LED projectors can be up to twice as bright of an equivalent lamp-based projector. Utilising this phenonenon, known as the Helmholtz-Kohlrausch (HK) effect, Optoma LED projectors produce vividly intense colours.
This enhanced brightness perception enables our LED projectors to comfortably render screen sizes far higher than its ANSI brightness specifications would suggest. This allows the projector to handle low levels of ambient light with less impact on image quality than lamp-based systems.