Search Results - geunyoung yoon

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Compact, Portable (Hand-Held) Wavefront Sensor
Applications: The present invention is a compact, portable (hand-held) wavefront sensor. It is composed of a double path dichrotic filter, a beam splitter, and a dual, unequal wavelength illumination arranged in a system able to measure ocular wave aberrations. Applications include: - Vision screening of infants and children. - Measurement of...
Published: 8/14/2020   |   Inventor(s): Geunyoung Yoon
Keywords(s): Diagnostic, Ophthalmology, Software, Vision
Category(s): Diagnostic
Algorithm to Increase Dynamic Range of Wavefront Sensor to Correct Eye Defects
Applications: Wavefront sensors are used to diagnoses and correct the optical defects in the eye. This technology increases dynamic range of a conventional wavefront sensor without sacrificing measurement sensitivity for the eye and optical testing.Advantages: The increased dynamic range of wavefront sensor enhances diagnosis and correction of optical...
Published: 4/17/2019   |   Inventor(s): Geunyoung Yoon, Gang Pan
Keywords(s): Algorithm, Ophthalmology, Software
Category(s): Diagnostic, Copyright
Measuring the Ocular Point Spread Function Using Adaptive Optics
Brief Description: A system to overcome limitations in lateral resolution found in popular wavefront sensors. Applications: This invention identifies the current Shack-Hartmann type ocular wavefront sensors and proposes a design to combat the model’s limited lateral resolution. The proposed invention is to measure the point spread function of...
Published: 2/28/2011   |   Inventor(s): Geunyoung Yoon
Category(s): Devices, Diagnostic
Scanning Optical System for a Large Axial Scan Depth Anterior Segment Optical Coherence Tomography (OCT)
Brief Description: A system to improve vision care accommodation and intraocular lens development. Applications: This invention identifies the two limitations associated with the traditional telecentric scan that most of the commercial anterior segment optical coherence tomography (OCT) systems use and proposes a novel design to tackle these issues. Advantages: Most...
Published: 2/28/2011   |   Inventor(s): Geunyoung Yoon
Category(s): Devices, Diagnostic
Rapid, Automatic Measurement of the Eye's Wave Aberration
A process for computing the aberrations of the eye in real time from wavefront measurements using a wavefront sensor such as a Hartmann-Shack detector.ApplicationsReal-time determination of the aberrations of the living human eye is necessary for high resolution imaging of the retina for diagnostic evaluation. This is necessary because the eye is...
Published: 6/17/2009   |   Inventor(s): David Williams, Geunyoung Yoon, Heidi Hofer, Pablo Artal, Juan Aragon, Pedro Prieto, Fernando Vargas, William Vaughn Iii, Benjamin Singer
Category(s): Diagnostic, Optics