Vision system illumination calibration apparatus

Details Vision system illumination calibration apparatus Vision system illumination calibration apparatus

G - Physics

05

B

342/6.41

G05B 19/42 (2006.01) G01J 1/32 (2006.01) G08C 21/00 (2006.01) G06F 15/20 (1990.01)

Patent

CA 1323085

VISION SYSTEM ILLUMINATION CALIBRATION APPARATUS ABSTRACT The vision system illumination calibration apparatus uses a pair of lamps, located one on either side of a vision element to illuminate a set of machine-readable characters imprinted in bar code format on a label affixed to a calibration target plate. The required level of illumination is set by the use of a predetermined calibration target label. The vision system is positioned opposite this calibration target label and the illumination level is varied in sequential steps. Control software identifies a range of illumination levels in which the calibration target label is accurately read by the vision element and sets the level of illumination of the lamps in this range of values.

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