Patent ID: 9151671
Filing Date: 2015-10-06
Classification: G01J,G01N

Abstract:
1. An apparatus for measuring an optical property of a sample, comprising: a first window and a second window; wherein the first window is configured to receive radiation from a source of optical energy over free space and the second window is configured with an incorporated optical detector that is utilized to optically interrogate a disposed sample there between the pair of windows, and wherein the first window and the second window are both moveable with respect to the positioning of the source of optical energy, and wherein the surfaces of the first window and the surfaces of the second window are further configured to respectively provide a first optical wedge and a second optical wedge so as minimize channel spectra, the first window and the second window being each configured with a flat surface and an off-center conic surface to respectively provide the first optical wedge and the second optical wedge, the flat surface of the second window pointing toward the optical detector and the off-center conic surface of the second window pointing toward the sample, and the off-center conic surface of the first window pointing toward the optical source of energy and the flat surface of the first window pointing towards the sample; and a processor adapted to control a separation between configured surfaces of the first window and the second window at a variable distance (P) in order to pull the disposed sample into a column contained by surface tension or to squeeze the sample during optical analysis, wherein the processor is additionally configured to collect and store information of different optical path lengths automatically of the pulled and/or squeezed sample(s).