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7
APPENDICES
220
8024172/V3-0/2021-01|SICK
Oper at i ng i ns t r uc t i ons | LABEL CHECKER P6XX
Subject to change without prior notice.
7.1.2
IR filter
C-mount filter insert for increasing ambient light immunity when using infrared
illumination.
Cannot be used with compact C-mount lens or S-mount lens, cannot be used with
focal length 16 mm (part number 2079346).
IR filter is not available for LBC621.
7.1.3
Polarizing and IR filters benefits, image performance tuning
Polarizing filter
The polarizing filter provides favorable camera image results, eliminating any direct
reflections. Although it may not positively influence the camera image when the ambient
light conditions changes rapidly.
IR filter
The IR filter suppresses the changes of the ambient light conditions, esp. when the
ambient light conditions varies to a great extent.
The IR filter must only be used in combination with the IR illumination. If combined with
other IR light (illumination), then it may create unfavorable camera images.
We recommend using the Polarizing filter, when the camera is placed perpendicular to
the inspected surface. Used particularly for code reading and OCR applications.
In order to eliminate direct reflections from the internal illumination of the camera, and
at the same time, suppress the changes of the ambient light conditions, then it is highly
recommended to utilize both filters in combination of the IR illumination.