Dark Time Adjustment - Barco Freya User Manual

How to adjust 3D control parameters
1. While in 3D file editor, switch off Disable 3D (reference 1) to activate 3D control.
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2. Select the L/R Input Reference. Click on drop down list (reference 2) to display the menu (reference 3),
then select the desired value.
3. Select switch on

7.5.3.3 Dark time adjustment

Dark Time Adjustment
Between switching the frames the image needs to be black the same time the external devices need to switch
(external devices can be 3D Glasses, or polarizing filter).
For 3D applications, systems typically need a period of time where the image projected on the screen is black.
This black or "dark time" is used to switch the mechanism that controls what a viewers left eye and right eye
sees. This software command is used to adjust the projector dark time to meet the requirements of whatever
switching mechanism is being used.
3D dark time adjustment will be disabled (set to 0) whenever 3D is disabled. With 3D enabled and 3D dark
time adjustment disabled, the projector will be set to its default dark time of approximately 388 µs. There is no
dark time when 3D is disabled.
The system will have a minimum and maximum dark time that can be achieved. If the specified value is
smaller than the system can provide, the dark time will be set to the systems minimum value, which will be
reported as the actual dark time value. If the specified value is larger than the system can provide, the dark
time will be set to the systems maximum value, which will be reported as the actual dark time value.
For 3D applications, systems typically need a period of time where the image projected on the screen is black.
This black or "dark time" is used to switch the mechanism that controls what a viewers left eye and right eye
sees. For most 3D applications, the system will provide an output reference signal that indicates whether left
or right eye data is being displayed, as well as the start of dark time. This signal is the 3D L/R Output
Reference.
How to adjust
1. While in 3D file editor, check if Disable 3D option (reference 1) is unchecked in order to acceded the
settings.
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Configuration - Projector
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