Patent ID: 9025245
Filing Date: 2015-05-05
Classification: G02B

Abstract:
1. A chromatic confocal microscope system, comprising: a light source module for providing a linear or a planar detecting light; a chromatic dispersion objective for axially dispersing the linear or the planar detecting light thereby forming a plurality of sub lights respectively having a focal length different from each other, and projecting the plurality of sub lights on a surface of an object for forming a linear or a planar object light; an optical module for splitting the linear or the planar object light into a first object light having a first focal point and a second object light having a second focal point; and a pair of color sensing units for respectively receiving the first object light at a first position and the second object light at a second position for respectively generating a plurality of sets of first RGB intensity signals and a plurality of sets of second RGB intensity signals, wherein each set of first and second RGB intensity signals are corresponding to each inspection position on the surface receiving the linear or the planar detecting light of the object, and each set of first RGB intensity signals has a first red light intensity signal, a first green light intensity signal, and a first blue light intensity signal, and each set of second RGB intensity signals has a second red light intensity signal, a second green light intensity signal, and a second blue light intensity signal, wherein a distance relation between the first position and the first focal point of the first object light is different from a distance relation between the second position and the second focal point of the second object light; and a signal processing unit for performing a calculation on the plurality sets of first and second RGB intensity signals for obtaining a normalization focal ratio index of red light, a normalization focal ratio index of green light, and a normalization focal ratio index of blue light, wherein the normalization focal ratio index of red light is a result of dividing a subtraction of first and second red light intensity signals by a summation of first and second red light intensity signals, the normalization focal ratio index of green light is a result of dividing a subtraction of first and second green light intensity signals by a summation of first and second green light intensity signals, and the normalization focal ratio index of blue light is a result of dividing a subtraction of first and second blue light intensity signals by a summation of first and second blue light intensity signals.