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:
Oct. 26, 2021
Filed:
Apr. 04, 2019
Amo Development, Llc, Santa Ana, CA (US);
Georg Schuele, Portola Valley, CA (US);
Alexander Vankov, Mountain View, CA (US);
Jenny Wang, Mountain View, CA (US);
David A. Dewey, Sunnyvale, CA (US);
Tianheng Wang, Fremont, CA (US);
Michael Wiltberger, Santa Clara, CA (US);
Mihai State, Groningen, NL;
Phillip Gooding, Mountain View, CA (US);
AMO Development, LLC, Santa Ana, CA (US);
Abstract
A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.