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:
Feb. 04, 2014
Filed:
Sep. 21, 2011
Brian C. Primeau, Tucson, AZ (US);
John E. Greivenkamp, Jr., Tucson, AZ (US);
James William Haywood, Fleming Island, FL (US);
Gregory A. Williby, St. Johns, FL (US);
Brian C. Primeau, Tucson, AZ (US);
John E. Greivenkamp, Jr., Tucson, AZ (US);
James William Haywood, Fleming Island, FL (US);
Gregory A. Williby, St. Johns, FL (US);
Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US);
Abstract
An in vivo method of characterizing dynamic tear films has been developed using a near infrared phase-shifting interferometer. This interferometer continuously measures light reflected from the tear film, allowing precision analysis of the dynamic surface topography. Movies showing the tear film behavior may be generated along with quantitative metrics describing the tear film surface as it changes in time.