Christie CP2210 User Manual page 77

FRAME RATE N:M NOTES
These N:M ratios define how many frames to display per number of frames that
form one complete image. For all 3D use, the denominator is 2, indicating that 2
frames (left and right) are combined into every complete display frame. For non-3D,
it is 1 frame. Set it to the highest rate possible without image cropping.
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.
CP2210 User Manual
020-100410-07 Rev. 1 (01-2012)
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4:2
24 Hz 24 Hz
A B
48 Hz
4 frames, 2 sources
(48 Hz x 2)
120 Hz
96 Hz
Figure 6-16 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)
144 Hz
Section 6: Projector Menus
EXAMPLE
4:2 = 4 frames displayed
NOTE: Not for 2048 x 1080
6:2
24 Hz 24 Hz
A B
48 Hz
6 frames, 2 sources:
(48 Hz x 3)
2 frames per image
6-23