Table of Contents
Advertisement
The projector automatically sets the red, green, and blue output laser powers to the pre-
determined settings calculated and displayed in the Drive Percentage (Calculated) area of
the wizard.
A 10 second countdown begins to allow the projector white point and brightness to
stabilize and no changes can be made. At the end of the count down period, the Color
Sensor values fields are automatically populated by the projector for the currently selected
drive percentage value.
b) When the countdown ends, under Measured Values, using the numeric keypad capture and
record the associated spectroradiometer values for x, y, and fL.
The projector holds the on-screen color and brightness level until the same or another
Capture button is selected.
c) Repeat steps a and b for the remaining drive percentage set points until all x, y, and fL
values are entered.
Spectroradiometer measurements can be captured in any order but all three x, y, and fL
measurements must be entered before moving onto the next capture. You can recapture a
specific measurement at any time during the process by selecting the Capture button. In
this case, the measured spectroradiometer and color sensor values are reset.
d) Once all the color sensor and measured values are entered for all nine rows, select Apply
and Save.
7. Verify and complete the calibration.
a) Select a white point to measure by selecting either the DCI, D65, or Custom white point
buttons.
Once selected, the projector automatically enables LiteLOC, selects a White test pattern
with uncorrected colors at the white point specified, and sets the brightness to 80%.
b) Using a spectroradiometer, measure screen x and y values at the center of the screen.
To verify the calibration has been successfully applied, the measured white point must be
within the expected tolerance.
c) When complete, select Finish.
The projector output is configured according to the currently selected calibration file and
you are returned to the Sensor-to-screen Calibration menu.
Editing the existing calibration file parameters
Make corrections to the existing calibration file parameters, when the values from the
spectroradiometer were entered in error.
1. Select Menu > Color Settings > Sensor-to-screen Calibration.
2. Select a user-defined calibration file.
3. Edit any of the x, y, or fL values by selecting the field under Measured Values and using the
numeric keypad to enter the updated value.
•
x and y value range: 0.0001 to 0.9999
•
fL value range: 0.01 to 9999.99.
4. To save the updated file to the projector, select Save.
Verifying the sensor-to-screen calibration
Check the integrity of the calibration, if required.
CP4445-RGB and CP4455-RGB Installation and Setup Guide
020-103746-01 Rev. 1 (11-2022)
Copyright
©
2023 Christie Digital Systems USA, Inc. All rights reserved.
If printed, please recycle this document after use.
Managing the light source
77
Advertisement
Table of Contents
