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2) "Dark Interval" projector control (note: not always required). For slower
gating technologies, you may also need to artificially increase the amount of
dark time between displayed frames so that shutters have even more time to
open/close and each eye sees the full display intended for it (Figure 3.30B).
Symptoms are more subtle than cross-talk—if the dark interval is too brief for
proper gating, you may notice an apparent color temperature problem, with
some whites or grays appearing with a slight red, green or blue tint. This color
artifact is particularly easy to diagnose in a grayscale test pattern displayed in
3D mode (i.e., with Minimum Delay). In the Advanced Image Settings menu,
increase the "Dark Interval" as necessary until the grayscale is correct—you
may also have to increase the internal delay when using a longer Dark
Interval. Note that the Dark Interval default is approximately 375 µs, but
slidebar values range from 0-255 and do not indicate µs.
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