Christie Digital Systems Ds+4k, 8k, Dlv1400-dx, Mirage S+2k, 4k, 8k Users Manual

Section 3: Operation 
 
  
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Typically, a high-end graphics workstation that includes hardware and software tools 
for customizing video output timing parameters can produce the requisite 3D signals, 
as can a PC running Windows
TM 98/2000 (use the “PowerStrip” utility)—
consequently your 3D displays should originate from either of these sources, or one 
that is similar.  NOTE: Not all systems include the hardware/software necessary for 
reconfiguring the 3D video output timing...

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Figure 3.26.  Typical 3D Configuration with Passive Glasses & TTL Inverter 
 
Figure 3.27. Typical 3D Configuration: Active Glasses & 3D Stereo Sync Cable  

Section 3: Operation 
 
  
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Figure 3.28. Typical 3D Configuration: Passive Glasses & 3D Stereo Sync Cable 
• APPROPRIATE 3D SOURCE: Signals from your 3D source (workstation or PC) 
must be customized to precisely match the processing capabilities of the 
projector. In addition, the source must provide a separate synchronization 
signal that precisely controls when left/right fields are visible through the 
viewer’s glasses. 
• 
INVERTER: Your 3D displays will usually require...

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cross-talk in 3D (stereographic) applications) as well as other more subtle color 
artifacts. Such problems indicate that the eyes are detecting portions of the 
opposing frame due to an “out-of-sync” system, and can occur in either active 
or passive 3D configurations. 
In the Advanced Image Settings menu, the correct “3D Stereo Sync Delay” 
setting helps to synchronize glasses with the displayed images. See also 
Customizing the Input Signal, below,...

Section 3: Operation 
 
  
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Figure 3.29. Customizing the Input Signal  

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Figure 3.30. Examples of Poor and Ideal Synchronization 
(2) DARK INTERVAL — (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...

Section 3: Operation 
 
  
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NOTES: 1) Increasing the Dark Interval decreases the peak brightness of the 
image. Use only if necessary—you may prefer some color artifacts rather 
than reduced brightness, or vice versa. 2) Higher input frame rates limit the 
range of Dark Interval adjustment. 3) Faster glasses allow a briefer dark 
interval. 
(3) 
3D STEREO SYNC — This option defines 1) whether or not the incoming 3D 
(stereographic) signal locks to the vertical sync output so that...

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When using a 3D Stereo Sync cable at the Mirage GPIO port, select which 3D Stereo 
Sync input (A or B) is connected, adjust the 3D delay, and choose the 3D Stereo Sync 
locking/inversion options applicable for your installation. See below. 
The following sources are optimized for active 3D (stereographic) images using the 
projector and active glasses. Clamp Location is “Back Porch”. Keep in mind that 
formats beyond those shown below may also be...

Section 3: Operation 
 
  
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IMAGE IS BREAKING UP: The horizontal back porch may be too small or too large. If 
you can lock to the signal by changing H-Position but have a black left edge in the 
image, reduce the source’s horizontal back porch blanking. If the black edge is on the 
right, increase the source’s horizontal back porch blanking. 
HORIZONTAL STREAKS IN THE IMAGE: You may need to adjust the Clamp Location 
option in the Input Levels menu (accessed via Image Settings...

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Factory Defaults option in the Color Primaries submenu. Then repeat the calibration 
process describe above, if desired, and continue with matching of colors. 
Color Adjustment Procedure 
Once the Color Primary Settings are calibrated for the site (see above), use the Color 
Adjustments by X,Y or Color Saturation menu to further refine each projector’s 
fundamental colors so that the hue and intensity of each color appears the same from 
one display to...