Datalogic Matrix 320 - Color Contrast Considerations

ILLUMINATORS
182 MATRIX 320
Color Contrast Considerations
Matrix 320 models are available in White, Blue, and Red Light versions to help resolve
applications that have colored codes and/or backgrounds.
The choice between the white, blue or red illumina-
tor should be done in order to maximize the contrast
between the code and its background; in general, a
code illuminated with a light of the same color
becomes brighter, on the other hand when illumi-
nated with an opposite color it appears darker (see
the Chromatic Circle Chart).
Consequently during the reading phase the lighting
system changes the chromatic rendering of the tar-
get according to the color of the illuminator, modify-
ing the contrast between target and background.
See the examples below.
Color Photo of Codes
Matrix 320 White Illuminator Matrix 320 Blue Illuminator Matrix 320 Red Illuminator
Good contrast on all codes
Red code (left)
has good con-
trast
Blue code
(right) has low
contrast
Red code (left)
has very low
contrast
Blue code
(right) has
good contrast