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:
Mar. 06, 2018
Filed:
Sep. 03, 2015
Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US);
Robert Karl Schweickert, Monument, CO (US);
Steven Phillip Hoggarth, Cary, NC (US);
Corey Kenneth Barrows, Colchester, VT (US);
Scott Robert Humphreys, Greensboro, NC (US);
Adam Walter Toner, Jacksonville, FL (US);
Randall Braxton Pugh, St. Johns, FL (US);
Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US);
Abstract
An anti-aliasing photodetector system for a powered ophthalmic device, such as a contact lens, may be utilized for any number of functions. The anti-aliasing photodetector system converts current from an array of photodetectors into a voltage for use in other aspects of the powered ophthalmic device. The anti-aliasing photodetector system comprises a photodiode array including a plurality of individual photodiodes, an integrate-and-hold circuit, including a capacitor and switch to convert current to voltage, and an analog-to-digital converter. The anti-aliasing photodetector system provides for low power consumption, a wide dynamic range, noise rejection, and is capable of detecting incident ambient visible light as well as incident infrared light.