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.:
Date of Patent:
Apr. 24, 2018
Filed:
Jun. 22, 2016
Applicants:
Jeffrey S. Hale, Lincoln, NE (US);
Craig M. Herzinger, Lincoln, NE (US);
Martin M. Liphardt, Lincoln, NE (US);
Inventors:
Jeffrey S. Hale, Lincoln, NE (US);
Craig M. Herzinger, Lincoln, NE (US);
Martin M. Liphardt, Lincoln, NE (US);
Assignee:
J.A. WOOLLAM CO., INC., Lincoln, NE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/21 (2006.01); G01J 4/04 (2006.01);
U.S. Cl.
CPC ...
G01N 21/211 (2013.01); G01J 4/04 (2013.01); G01N 2201/127 (2013.01);
Abstract
An approach to characterizing beams of electromagnetic radiation such as are applied in ellipsometer and the like systems, involving considering the beam to be comprised of a number of spatially distributed beam rays, each of which is represented mathematically as an effectively independent source.