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:
Jan. 25, 2022
Filed:
May. 20, 2019
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
Soongyu Yi, Madison, WI (US);
Zongfu Yu, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/88 (2006.01); G01N 21/17 (2006.01); G02B 27/00 (2006.01); G01B 11/26 (2006.01);
U.S. Cl.
CPC ...
G01N 21/8806 (2013.01); G01N 21/17 (2013.01); G02B 27/0087 (2013.01); G01B 11/26 (2013.01); G01N 2021/8841 (2013.01);
Abstract
An apparatus for measurement of surface relief provides a phase sensitive camera and processing to reconstruct a wavefront profile matching the surface when illuminated with a known light source thereby providing noncontact surface relief measurements.