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:
Nov. 19, 2019
Filed:
Jun. 06, 2018
Chukyo Medical Co., Inc., Nagoya-shi, Aichi, JP;
CHUKYO MEDICAL CO., INC., Nagoya-shi, JP;
Abstract
Provided are an apparatus and a method, for testing a visual function of a subject, that make it possible to appropriately test the sensitivity for each color for each region of a visual field. In a state in which the subject is caused to gaze at one pointin a background, a visual targetfor testing a color-related visual function of the subject is displayed in a peripheral region of the gaze pointsuch that the luminance of the backgroundhas a numerical value included between a numerical value smaller by 10% and a numerical value greater by 10% than the luminance of the visual target. Then, for each measurement point, a threshold that is a size of the visual targetthat determines whether or not the subject can perceive the visual targetis obtained for a plurality of times.