Patent ID: 9341515
Filing Date: 2016-05-17
CPC Classification: G01J,G01N,G02B

Claim Text:
1. A transmission-geometry, optical absorbance spectroscopy apparatus, comprising: a broadband sample illumination source providing broadband sample illumination; a broadband sample illumination propagation medium that is an optical waveguide having a proximal end and a distal end; a sample holder; a sample field-of-view controller comprising a sample field-of-view aperture having a maximum dimension less than 50 micrometers (μm) disposed at the distal end of the optical waveguide, which is coupled to the sample holder, wherein the proximal end is coupled to the broadband sample illumination source, wherein the sample field-of-view aperture provides a limiting sample field of view of the broadband sample illumination; and a transmitted light detection path comprising a portion of the broadband sample illumination that is transmitted by the sample.