Patent ID: 6211989
Filing Date: 2001-04-03
Classification: G01N

Abstract:
A light scanning device for exciting and detecting secondary light, especially fluorescent light, on a sample (22), comprisinga light emission device (10) for emitting exciting light (11) with a wavelength suitable for exciting secondary light on or in said sample (22),a focussing optics (34, 44) for focussing the exciting Light on a subarea of said sample (22),a sample holding device (20, 21) for releasably holding the sample (22), anda detection unit comprising a detection optics (32, 42) for the secondary light emitted by the sample in response to excitation and a detector device (31, 41) for converting the detected and imaged secondary light into electric signals,wherein the sample holding device is adapted to be rotated for rotating the sample relative to the exciting light so that different subareas of said sample can be excited by means of the exciting light so as to emit secondary light, andthere are at least two respectively associated pairs of said focussing optics and said detection units.