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:
May. 12, 2020
Filed:
Jan. 16, 2018
Spy Eye, Llc, Los Gatos, CA (US);
Eric Anthony Perozziello, Discovery Bay, CA (US);
Tectus Corporation, Saratoga, CA (US);
Abstract
A variable geometry contact lens structure having a thickness t sufficient to carry an active payload is constructed using layers of materials with high oxygen transmissibility and low oxygen transmissibility. The low transmissibility layer provide mechanical support for the active payload, and the high transmissibility layers provide adequate oxygen transmission to the cornea of the user's eye. The ratio of the thicknesses of the two layers changes abruptly at the boundaries between the payload and non-payload regions of the structure. For example, at a boundary of the payload region, a ratio of thicknesses of the high transmissibility layer t1 to thickness of the low transmissibility layer t2, R=t1/t2, changes by at least 2:1 over a lateral distance of not more than t.