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:
Jan. 26, 2021
Filed:
Mar. 19, 2018
Applicant:
The Hong Kong Polytechnic University, Kowloon, HK;
Inventors:
Assignee:
THE HONG KONG POLYTECHNIC UNIVERSITY, Kowloon, HK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61H 5/00 (2006.01);
U.S. Cl.
CPC ...
A61H 5/00 (2013.01);
Abstract
An optical system including a layer having a reflective surface, the layer is adapted to provide a primary image and a secondary image. The secondary image is provided by a reflection of an object facing the reflective surface, and the primary and the secondary images are viewable by a viewer having a retina. The secondary image is focused in front of the retina to generate myopic defocus.