Daniel E Hamrick

6547395, Apr 15, 2003

Feb 22, 2000

09/507670

Daniel R. Neal - Tijeras NM
Christopher Burak - Edgewood NM
Daniel R. Hamrick - Cedar Crest NM

WaveFront Sciences, Inc. - Albuquerque NM

A61B 300

351246

Metrology is performed using short, temporally resolved measurements in order to âfreezeâ the deformation of the object at a particular instant in time. The pulsed light beams are used to conduct metrology of moving objects and objects which are moved relative to the detector for measurement thereof. The motion may be translational, spiral and/or rotational. The duty cycle of the light source may be varied to in accordance with the control of the operation of the detector to perform metrology using a reduced total exposure of an object, while increasing the amount of light available for the measurement.

6624896, Sep 23, 2003

Oct 18, 2000

09/690766

Daniel R. Neal - Tijeras NM
Daniel R. Hamrick - Cedar Crest NM
Thomas D. Raymond - Sandia Park NM

WaveFront Sciences, Inc. - Albuquerque NM

G01B 1130

356600, 356121

A metrology system and method uses pulsed light to allow continuous movement of a target relative to the sensor. A metrology system and method uses dynamic adjustment of tilt in a system. A metrology system and method calibrates the system to remove inherent optical aberrations in the system. Filtering may also be used in the system to increase accuracy.

6819413, Nov 16, 2004

Aug 29, 2003

10/650666

Daniel R. Neal - Tueras NM
Richard J. Copland - Albuquerque NM
Ron R. Rammage - Tueras NM
Daniel M. Topa - Albuquerque NM
Daniel R. Hamrick - Cedar Crest NM

Wavefront Sciences, Inc. - Albuquerque NM

G01J 100

356123, 356125, 359641, 351205

An enhanced dynamic range wavefront sensing system includes a light source disposed on a first side of an optically transmissive device, a wavefront sensor disposed on a second side of an optically transmissive device, a relay imaging system disposed between the optically transmissive device and the wavefront sensor, and means for adjusting a distance between the light source and the optically transmissive device. Beneficially, the relay imaging system includes a range-limiting aperture to insure that the wavefront sensor never goes out of range so that a feedback system can be employed to move the light source one focal length away from the optically transmissive device.

20190072376, Mar 7, 2019

Nov 2, 2018

16/179743

- Santa Ana CA, US
Isaac Neal - Tijeras NM, US
Daniel R. Hamrick - Cedar Crest NM, US
Thomas M. Shay - St. George UT, US

G01B 9/02
A61B 3/00
A61B 3/10

Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.

20190029512, Jan 31, 2019

Oct 1, 2018

16/148950

- Santa Ana CA, US
Daniel R. Neal - Tijeras NM, US
Thomas D. Raymond - Edgewood NM, US
Stephen W. Farrer - Albuquerque NM, US
Daniel R. Hamrick - Cedar Crest NM, US
Richard J. Copland - Albuquerque NM, US

A61B 3/10
G02B 6/12
A61B 3/00

An optical coherence tomography (OCT) system includes: a light source; a multi-focal delay line; and a light detector. The multi-focal delay line includes: a positive lens; and an optical switch configured to: receive a light from the light source; selectively direct the sample light to the positive lens via a selected one of a plurality of light interfaces each located a different distance from the focal plane of the positive lens; and direct the sample light to an object to be measured. The light detector is configured to receive return light returned from the object to be measured in response to the sample light, and to receive a reference light produced from the light from the light source, and in response thereto to detect at least one interference signal. An associated OCT method may be performed with the OCT system.

20170311798, Nov 2, 2017

Jul 19, 2017

15/654534

- Santa Ana CA, US
Stephen W. Farrer - Albuquerque NM, US
Larry B. Voss - Tijeras NM, US
Thomas D. Raymond - Edgewood NM, US
Daniel R. Hamrick - Cedar Crest NM, US
John G. Dixson - Albuquerque NM, US
Phillip Riera - Albuquerque NM, US
Ron R. Rammage - Tijeras NM, US
Richard J. Copland - Albuquerque NM, US

A61B 3/103
A61B 3/00
A61B 3/00
A61B 3/00
A61B 3/10
A61B 3/00

Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patient's eye.

20170122722, May 4, 2017

Nov 3, 2016

15/342418

- Santa Ana CA, US
Isaac Neal - Tijeras NM, US
Daniel R. Hamrick - Cedar Crest NM, US
Thomas M. Shay - St. George UT, US

G01B 9/02

Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.

20160150952, Jun 2, 2016

Nov 23, 2015

14/949783

- Albuquerque NM, US
Daniel R. Neal - Tijeras NM, US
Richard J. Copland - Albuquerque NM, US
Wei Xiong - Albuquerque NM, US
Paul Pulaski - Albuquerque NM, US
Stephen W. Farrer - Albuquerque NM, US
Carmen Canovas - Groningen, NL
Daniel R. Hamrick - Cedar Crest NM, US

A61B 3/00
A61B 3/103
A61B 3/10
A61F 9/008
A61B 34/10

Improved devices, systems, and methods for planning cataract surgery on an eye of a patient incorporate results of prior corrective surgeries into a planned cataract surgery of a particular patient by driving an effective surgery vector function based on data from the prior corrective surgeries. The exemplary effective surgery vector employs an influence matrix which may allow improved refractive corrections to be generated so as to increase the overall efficacy of a cataract surgery by specifying one or more parameters of an intraocular lens (IOL) to be implanted during the cataract surgery.