Patent ID: 8520200
Filing Date: 2013-08-27
Classification: G01N,H05B

Abstract:
1. An inspection system, comprising: a sensor for generating detection signals in response to light from an inspected object; the inspected object is a semiconductor wafer or a printer circuit board; a processor for processing the detection signals; and an illumination module that comprises: wherein the illumination module further comprises a collimator, a filter, a homogenizer and a concentrator; wherein the group of LEDs is arranged to illuminate the collimator by light pulses; wherein the collimator collimates the light pulses to provide collimated light pulses; wherein the filter is arranged to spectrally filter the collimated light pulses to provide filtered light pulses; wherein the homogenizer is arranged to increase an illumination homogeneity of the filtered light pulses to provide homogenized light pulses; wherein the concentrator is arranged to concentrate the homogenized light pulses onto a light guide.