Patent ID: 6687035
Filing Date: 2004-02-03
Classification: G02B

Abstract:
A method for scanning a specimen with an illumination light beam of at least one light source, comprising the steps of:defining at least one region of interest (ROI) in a scan frame of the specimen; providing a first plurality of first scan lines and a second plurality of second scan lines by the intersection of the scan pattern with the at least one region of interest; illuminating the specimen in the at least one region of interest in the first scan line with first illumination conditions wherein the region of the sample outside the region of interest is illuminated with second illumination conditions; and, illuminating the specimen in the at least one region of interest in the second scan line with third illumination conditions wherein the region of the sample outside the region of interest is illuminated with fourth illumination conditions; and, wherein the first illumination conditions and the third illumination conditions are different intensities but the same wavelength and differ from the second illumination conditions and fourth illumination conditions, both of which are the same wavelength but differ in intensity.