Spatial-heterodyne interferometry for reflection and transmission (SHIRT) measurements - Patent Review 6999178

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Spatial-heterodyne interferometry for reflection and transmission (SHIRT) measurements

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United States Patent

6999178

Link to this page

http://www.wikipatents.com/6999178.html

Inventor(s)

Hanson; Gregory R. (Clinton, TN), Bingham; Philip R. (Knoxville, TN), Tobin; Ken W. (Harriman, TN)

Abstract

Systems and methods are described for spatial-heterodyne interferometry for reflection and transmission (SHIRT) measurements. A method includes digitally recording a first spatially-heterodyned hologram using a first reference beam and a first object beam; digitally recording a second spatially-heterodyned hologram using a second reference beam and a second object beam; Fourier analyzing the digitally recorded first spatially-heterodyned hologram to define a first analyzed image; Fourier analyzing the digitally recorded second spatially-heterodyned hologram to define a second analyzed image; digitally filtering the first analyzed image to define a first result; and digitally filtering the second analyzed image to define a second result; performing a first inverse Fourier transform on the first result, and performing a second inverse Fourier transform on the second result. The first object beam is transmitted through an object that is at least partially translucent, and the second object beam is reflected from the object.

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2005/0046857 Bingham et al. Mar,2005	Your vote accepted [0 after 0 votes]		2005/0046858 Hanson et al. Mar,2005	Your vote accepted [0 after 0 votes]
2004/0212807 Hanson et al. Oct,2004	Your vote accepted [0 after 0 votes]		2004/0213464 Hanson et al. Oct,2004	Your vote accepted [0 after 0 votes]
2004/0213462 Hanson et al. Oct,2004	Your vote accepted [0 after 0 votes]		6809845 Kim et al. Oct,2004	Your vote accepted [0 after 0 votes]
2004/0145745 Voelkl Jul,2004	Your vote accepted [0 after 0 votes]		2004/0130762 Thomas et al. Jul,2004	Your vote accepted [0 after 0 votes]
6747771 Thomas et al. Jun,2004	Your vote accepted [0 after 0 votes]		2004/0042015 Price Mar,2004	Your vote accepted [0 after 0 votes]
2004/0057089 Voelkl Mar,2004	Your vote accepted [0 after 0 votes]		2004/0042057 Thomas et al. Mar,2004	Your vote accepted [0 after 0 votes]
2004/0042056 Price et al. Mar,2004	Your vote accepted [0 after 0 votes]		2004/0021871 Psaltis et al. Feb,2004	Your vote accepted [0 after 0 votes]
2003/0227658 Thomas et al. Dec,2003	Your vote accepted [0 after 0 votes]		6597446 Klooster et al. Jul,2003	Your vote accepted [0 after 0 votes]
6525821 Thomas et al. Feb,2003	Your vote accepted [0 after 0 votes]		2003/0016364 Thomas et al. Jan,2003	Your vote accepted [0 after 0 votes]
6262818 Cuche et al. Jul,2001	Your vote accepted [0 after 0 votes]		6078392 Thomas et al. Jun,2000	Your vote accepted [0 after 0 votes]
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