Jonathan G Ellis

US Patent:

20210052425, Feb 25, 2021

Filed:

Jan 25, 2019

Appl. No.:

16/964477

Inventors:

- Rochester NY, US
Jonathan D. Ellis - Tucson AZ, US
Krystel R. Huxlin - Rush NY, US
Daniel R. Brooks - Rochester NY, US
Kaitlin T. Wozniak - Rochester NY, US

International Classification:

A61F 9/008

Abstract:

Refractive index writing system and methods employing a pulsed laser source for providing a pulsed laser output at a first wavelength; an objective lens for focusing the pulsed laser output to a focal spot in an optical material; a scanner for relatively moving the focal spot with respect to the optical material at a relative speed and direction along a scan region for writing one or more traces in the optical material defined by a change in refractive index; and a controller for controlling laser exposures along the one or more traces in accordance with a calibration function for the optical material to achieve a desired refractive index profile in the optical material. The refractive index writing system may be for writing traces in in vivo optical tissue, and the controller may be configured with a calibration function obtained by calibrating refractive index change induced in enucleated ocular globes. A real-time process control monitor for detecting emissions from the optical material transmitted through the objective lens at a second wavelength may further be employed while writing the one or more traces.

US Patent:

20200223009, Jul 16, 2020

Filed:

Jul 6, 2018

Appl. No.:

16/629199

Inventors:

- Rochester NY, US
Jonathan D. Ellis - Tuscon AZ, US

International Classification:

B23K 26/082
G02B 13/00
G02B 27/00
G02B 26/10
B23K 26/06
B23K 26/0622

Abstract:

A pre-objective two-degree-of-freedom galvanometer scanning system including two galvo mirrors () with an optical relay () between the mirrors () and a microscope objective () with a curved image plane () is presented. The second galvo mirror () is located in the aperture stop before the objective. The optical system enables scanning in both directions over the full, curved field for creating custom refractive structures across the 6.5 mm optical zone of contact lenses using femtosecond micro-modification.

US Patent:

20190343683, Nov 14, 2019

Filed:

May 14, 2019

Appl. No.:

16/412265

Inventors:

- Rochester NY, US
Jonathan D. Ellis - Tucson AZ, US
Theodore Foos - Mendon NY, US
Sam C. Butler - Rochester NY, US

International Classification:

A61F 9/008

Abstract:

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or ocular tissues is performed to address various types of vision correction.