Patent ID: 9383309
Filing Date: 2016-07-05
CPC Classification: G01J,G01N

Claim Text:
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 therebetween the pair of windows, 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 being configured with a pair of flat surfaces angled with respect to each other to provide the first optical wedge, and the second window being configured with a flat surface and an off-center conic surface to provide 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 a computer 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 computer is additionally configured to collect and store information of different optical path lengths automatically of the pulled and/or squeezed sample(s).