Patent ID: 9234852
Filing Date: 2016-01-12
CPC Classification: G01N,H04N

Claim Text:
1. A machine vision system that controls image exposure strobe illumination used to illuminate a workpiece, such that the workpiece may be imaged by a camera in the machine vision system while moving at high speed, the system comprising: a camera providing a camera image of the workpiece; a strobe light generator that emits radiation used by the camera for imaging; and a controller configured to control a timing relationship between an image integration period of the camera and a pulse duration of the radiation emitted by the strobe light generator to control an image exposure of a camera image during a timing overlap which occurs between a beginning of the image integration period and an end of the pulse duration, wherein the timing relationship is controlled such that the pulse duration starts, the image integration begins after a delay relative to a start of the pulse duration and not later than the end of the pulse duration, the pulse duration ends, and the image integration period ends not earlier that the end of the pulse duration.