Resumes
Resumes
Gavin Erry Phones & Addresses
-
Albuquerque, NM
Publications
Us Patents
Radiation Focussing Element
View pageUS Patent:
20060103943, May 18, 2006
Filed:
Dec 12, 2003
Appl. No.:
10/539085
Inventors:
Gavin Erry - Albuquerque NM, US
Paul Harrison - Albuquerque NM, US
Andrew Scott - Worcestershire, GB
Paul Harrison - Albuquerque NM, US
Andrew Scott - Worcestershire, GB
International Classification:
G02B 3/00
US Classification:
359642000
Abstract:
The or at least one surface of a reflective or transmissive radiation focussing element is provided with at least one phase or amplitude diffraction grating that is distorted substantially according to a quadratic function. The surface or the opposed surface may also be provided with an aperture. The element is useful in three dimensional imaging and wavefront sensing systems.
Ophthalmic Aberrometer For Measuring Aberrations In The Eye
View pageUS Patent:
7419264, Sep 2, 2008
Filed:
Nov 4, 2004
Appl. No.:
10/981996
Inventors:
Paul Harrison - Albuquerque NM, US
Gavin Erry - Albuquerque NM, US
Gavin Erry - Albuquerque NM, US
Assignee:
Kestrel Corporation - Albuquerque NM
International Classification:
A61B 3/14
US Classification:
351210, 351211
Abstract:
A ophthalmic aberrometer uses a wavefront sensor aligned with an eye under examination through an optical path and a light source for introducing a light beam into the eye via the optical path, wherein the optical path has a reference through which the light beam passes before passing to an eye retina to form a reference spot on the retina, a focus dynamic range extender, and an astigmatism dynamic range extender positioned in the optical path between the reference and an eye under examination. The wavefront sensor is positioned to receive a wavefront reflected from the eye retina via the optical path.