Using The Constant Brightness Function To Maintain The Brightness Output - Vivitek DU9057Z User Manual

DLP Projector - User Manual

Using the Constant Brightness Function to Maintain the Brightness Output

The brightness output of a projector may decline after thousands of hours of usage. In certain applications, such
as mapping, a periodical adjustment to multiple projectors is required to ensure the overall image result. Vivitek's
Constant Brightness feature is designed to reduce the need for installers to regularly recalibrate the projectors. A
built-in light sensor inside the projector monitors the level of light so that when a reduction in light is detected, the
projector will regulate dynamically the electricity power to increase the light output to your pre-defined
brightness level, and thus maintaining a constant level of brightness. To use this function, follow the steps below:
1. Select CONTROL > Light Source > Custom Light. Change it to Custom Light Level with a value under 100%.
For example: 90% or 85%. The reduced power percentage will be used to later regulate the brightness when
the Constant Brightness function is enabled.
2. Enable the Constant Brightness function
Note:
After a long period of time, when a power boost reaches its limit of maximum power, the Constant
Brightness function will no longer increase the electrical power to the laser light source. In this
case, please turn off the Constant Brightness function. You can also readjust all the projectors to a
new level of brightness with a lower Customer Power Level percentage, so that the Constant
Brightness function will work again.
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