08208144 is referenced by 2 patents and cites 15 patents.

A spatial frequency optical measurement instrument (100) is provided according to the invention. The instrument (100) includes a spatial frequency mask (120) positioned in a light path and configured to encode light with spatial frequency information, a light receiver (140) positioned to receive the light encoded with the spatial frequency information, wherein the light encoded with the spatial frequency information has been interacted with a sample material, and a processing system (180) coupled to the light receiver (140) and configured to determine a change in the spatial frequency information due to the interaction of the light with the sample material.

Title
Spatial frequency optical measurement instrument and method
Application Number
12/668926
Publication Number
8208144 (B2)
Application Date
July 15, 2008
Publication Date
June 26, 2012
Inventor
Perry A Palumbo
Fort Collins
CO, US
Agent
Ference & Associates
Assignee
Hach Company
CO, US
IPC
G01N 21/55
G01N 21/59
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