Christie CP4230 User Manual page 89

4:2
24 Hz
DARK TIME and OUTPUT DELAY NOTES
The dark time between incoming left and right frames provides a brief interval of non-image time (in
microseconds) for your switching device (such as shutters in glasses) to complete its switch. When this interval
is set properly, neither eye sees image data intended for the other eye and this helps to prevent color artifacts
and ghosting. The output delay setting shifts the 3D sync in relation to the Dark Time interval, starting each
frame slightly earlier (-) or later (+). Too much offset can cause "bleed-through" where each eye sees some
data that is intended for the other, or causes color cropping since some DMD sequences may be clipped.
CP4230 User Manual
020-100621-03 Rev. 1 (05-2014)
24 Hz
A B
48 Hz
4 frames, 2 sources
(48 Hz x 2)
96 Hz 120 Hz
Figure 6-15 Examples of Frame Rate N:M
5:2
24 Hz 24 Hz
A B
48 Hz
5 frames, 2 sources:
(48 Hz x 2.5)
Section 6: Cinema Projector Menus
NOTE: Not for 2048 x 1080
6:2
24 Hz 24 Hz
A B
48 Hz
6 frames, 2 sources:
(48 Hz x 3)
144 Hz
6-23