Patents by Inventor Jason Yang Xue

Jason Yang Xue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heterogeneous visual acuity chart and visual acuity testing method and device
    Patent number: 11445905
    Abstract: A heterogeneous visual acuity chart and a visual acuity testing method and device are provided. The heterogeneous visual acuity chart is a size illusion chart composed of a heterogeneous reference zone and at least two types of optotypes of different sizes, where the heterogeneous reference zone is used to cause incorrect identification on the different types of optotypes of different sizes. The visual acuity testing method and device determine whether a visual acuity of a subject is true based on a difference between visual acuities tested with the heterogeneous visual acuity chart and a standard logarithmic visual acuity chart. The visual acuity chart is a size illusion chart composed of optotypes of different sizes and a perspective, which causes an illusion on a visual depth to interfere with the identification of the optotypes of different sizes.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: September 20, 2022
    Inventors: Lan Wang, Yixiang Yuan, Jason Yang Xue, Judy Danley, Xingcai Li