User`s guide

RightLight Service | 13
RightLight Service
The RightLight service performs backlight stabilization, DICOM
calibration, and automatic and manual conformance testing for
Dome CX and Dome EX displays. With RightLight, you can set a target
white level, equalize the black level across the displays, set a desired
response function, and specify ambient light in the viewing area. This
service also reports current white and black levels.
RightLight automatically calibrates the displays at regular intervals.
Calibration adjusts the response of a display to conform to the
response function you specify. There are four calibration response
functions, one of which is a correction to the DICOM Grayscale
Standard Display Function.
DICOM calibration is based on the unique characteristic curve stored
in each display at the time of manufacturing. RightLight routinely
checks how well each display conforms to the DICOM standard and
calculates a Luminance Uniformity Metric (LUM) value that indicates
the degree of conformance.
Besides the automatic conformance testing that RightLight performs
regularly, you can perform manual conformance testing as desired,
using an optional external photometer.
You can also calibrate the internal RightLight photometer to generate
a new calibration data file whenever the white level is outside the
tolerances set for the display configuration. Calibrating the white
level requires an external photometer.