The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7940399 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2011

Filed:

Jul. 24, 2009
Applicants:

Gabriel Popescu, Champaign, IL (US);

Zhuo Wang, Urbana, IL (US);

Inventors:

Gabriel Popescu, Champaign, IL (US);

Zhuo Wang, Urbana, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods for displaying anisotropic properties of an object. The object is illuminated with a first test beam characterized by a first polarization that, after traversing the object, is combined with a reference beam. The combined light of the first transmitted test beam and the reference beam is analyzed by a first pair of polarization analyzers, and interference created between the first transmitted test beam and the reference beam as analyzed by the first pair of analyzers is detected to derive intensity, phase and polarization of the first transmitted test beam. The same is then done with a second test beam that has a polarization with a component orthogonal to the first polarization. Based on the two analyzed beams, complex elements of a Jones matrix associated with the object in a local coordinate system are determined and a plurality of tangible images are displayed that characterize the object based on the complex elements of the Jones matrix.


Find Patent Forward Citations

Popescu, Gabriel. (2011). Jones phase microscopy of transparent samples (U.S. Patent No. 7940399). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7940399

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