The 3 colors of the R•G•B LEDs are
optimally selected according to the color
combination. With the LX-100’s Mark mode,
the built-in “Automatic optimal LED selection
function” automatically selects the LED for
the largest contrast (S / N ratio) between the
mark and base (non-mark area) to ensure
optimal sensing. For more stable detection,
the sensor makes selection according to the
contrast and not according to the reflected
light variation between the mark and base
(non-mark area).
The example on the