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:
Sep. 24, 2002
Filed:
May. 31, 2000
Applicant:
Inventor:
Jonathan G. Torrey, Portland, OR (US);
Assignee:
PRIO Corporation, Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/02 ;
U.S. Cl.
CPC ...
A61B 3/02 ;
Abstract
The present invention relates to an improved display screen for a vision tester apparatus for use in optometric examinations to simulate the actual alphanumeric and graphical images of a modern, high-resolution video display terminal (VDT) and to facilitate prescribing corrective lenses that will perform well for a patient using an actual VDT. The display screen uses graphical images and alphanumeric characters of a continuous-line style to simulate more accurately the display on an modern, high-resolution VDT.