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. 15, 2022
Filed:
Oct. 30, 2018
Welch Allyn, Inc., Skaneateles Falls, NY (US);
John A. Lane, Weedsport, NY (US);
Ervin Goldfain, Syracuse, NY (US);
Megan Schneider, Syracuse, NY (US);
Yaolong Lou, Singapore, SG;
David L. Kellner, Baldwinsville, NY (US);
Mathias Mereles, Stanhope, NJ (US);
Chris R. Roberts, Skaneateles, NY (US);
Tyson B. Whitaker, Arden, NC (US);
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Abstract
A vision screening apparatus conducts a photorefraction ocular screening test to generate refractive error data. Based on the refractive error data, a Snellen equivalent is determined. An evaluated person distance from the vision screening apparatus is also determined and used to generate an adjusted optotype size. The vision screening apparatus displays the optotype, adjusted for the Snellen equivalent and the evaluated person distance.