Patent ID: 8395773
Filing Date: 2013-03-12
Classification: B01L,G01N

Abstract:
1. A method for detecting an illumination of a sample comprising: providing a sample to be illuminated, the sample being contained in an illumination chamber; providing an illumination structure, the illumination chamber being contained in the illumination structure; providing a light source; providing a light guide positioned between the light source and the illumination structure; providing an excitation filter positioned adjacent the light source in a propagation path of light rays from the light source; providing a detector positioned over the illumination chamber, wherein: light rays from the light source propagate into one end of the light guide and exit another end of the light guide, said light rays entering the illumination structure; said light rays illuminate said sample in the illumination chamber; said detector captures illuminated light rays from said illuminated sample, the method further comprising: providing a light absorbing structure to remove undesired light, wherein said light absorbing structure comprises light guide light absorbing structures positioned adjacent to side walls of said light guide and an illumination chamber light absorbing structure positioned above a top surface of said illumination chamber.