Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 15, 2017
Patent Application Number
15218079
Date Filed
July 25, 2016
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
A refraction device determines a refraction end point to provide corrective optics for a test subject. The device includes an adjustable optical system providing corrective optics to the test subject and an adjustable viewing target disposed along an optical path such as to be viewable through the adjustable optical system by a test subject. The adjustable viewing target includes a directional indicator linked synchronously to at least two choices of corrective optics presented to the test subject.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
