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:
Dec. 02, 2003
Filed:
Dec. 19, 2002
Applicant:
Inventors:
Barry Eagan, Salt Lake City, UT (US);
Lloyd M. Caldwell, Salt Lake City, UT (US);
D. Robert Cady, MillCreek Township, UT (US);
Donald C. Grove, Layton, UT (US);
Gregg D. Niven, Kaysville, UT (US);
Xan Nguyen, Salt Lake City, UT (US);
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 6/00 ;
U.S. Cl.
CPC ...
A61B 6/00 ;
Abstract
An apparatus for registering a series of video images of a spherical or quasi-spherical surface subject to movement relies on projecting at least four diffusely scattering spots of light on the surface in a preferred angular manner, and monitoring the movement of images of the light spots relative to a reference image of the light spots.