luminosity
brightness *
brightness level
luminance
luminousness
light *****

The increased contrast makes details clearer at lower brightness levels, so prolonged viewing is less tiring.

This difference in brightness levels is called Contrast (vision) and makes smaller letters readable.

The color signal was then used to gate each color tube to the correct brightness levels.

However, the brightness level was indicated to be low, at 210.8 cd/m2.

Computer screens use only these three colors in different brightness levels.

These detrimental effects may depend on the spectrum as well as the overall brightness level of light.

The l.e.d. therefore flashes in sympathy with the music above and below its steady brightness level.

But as more newspapers print color, they are insisting on brightness levels of at least 58.

It doesn't distort even under greatly increased brightness levels.

The brightness was cranked down to less than half, but as we noted, even the lowest brightness level on the Z835 is still quite bright.