Search Results - james+schwiegerling

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Identification and Control of Myopic Progression Using Distortion
This invention relates generally to myopia and myopic progression, and more particularly to imaging systems and non-invasive methods for identification and characterization (quantifiable measurement of the amount, type and orientation) of ocular distortion in the human eye, in order to detect the onset or progression of myopia and facilitate control...
Published: 12/18/2018   |   Inventor(s): James Schwiegerling, Edward Lavilla
Keywords(s):  
Category(s): Technology Classifications > Healthcare Portfolios > Ophthalmology, Technology Classifications > Imaging & Optics > Ophthalmology, Technology Classifications > Materials > Medical Devices > Diagnostic
Adjustable Hybrid Diffractive/Refractive Achromatic Lens
Researchers at the University of Arizona have designed an achromatic variable focus lens that can correct for Seidel Aberrations in addition to chromatic dispersion. The technology uses fluid pressure control to alter the curvature of clear membranes containing fluid in correlation with the wavelength and the desired focal length. Software enables the...
Published: 12/17/2014   |   Inventor(s): Pouria Valley, Nasser Peyghambarian, Gholam Peyman, James Schwiegerling, Nickolaos Savidis
Keywords(s): diffractive lens, liquid-crystal devices
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Medical Imaging
Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 11/30/2014   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 1/31/2014   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
Snapshot Plenoptic Imaging Spectrometer
This technology is a specialized plenoptic imaging system that is capable of not only gathering spatial and angular information but also hyperspectral and polarization information. The configuration of the system is that of a snapshot imager, which greatly increases its practicality and ease of use. Background: Advanced camera systems generally...
Published: 5/9/2012   |   Inventor(s): J. Scott Tyo, James Schwiegerling, Gabriel Birch
Keywords(s): hyperspectral imaging system, plenoptic camera, snapshot imaging spectrometer
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry
Computational Photographic System for Depth Resolution Imaging
This invention is a method for acquiring 3D imagery using an adaptation to existing SLR camera systems that allows for full 3D imagery to be obtained without sacrificing the inherent imaging capability of the camera. This adaptation allows for relatively low cost implementation of 3D technology into already existing camera systems. Through the use of...
Published: 2/21/2012   |   Inventor(s): J. Scott Tyo, James Schwiegerling, Gabriel Birch
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics
Non-Mechanical Auto-Focus and Optical Zoom
A design for a non-mechanical zoom system using variable focus elements without moving parts to create optically zoomed images has been developed by researchers at the University of Arizona. Three different magnifications have been demonstrated, and unlike digital zoom, enhanced detail is presented to the detector for improved imaging. The variable...
Published: 10/13/2011   |   Inventor(s): Pouria Valley, James Schwiegerling, Nasser Peyghambarian, Mohammad Reza Daj
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lens & System Design
Compact Snapshot Polarimetry Camera
Researchers at The University of Arizona and Hokkaido University have developed a means for polarimetric analysis that completes a full polarimetric analysis in a single measurement without any moving parts. Using a combination of two pairs of Savart Plates with a half-wave plate between them, light passing through this system creates an interference...
Published: 11/3/2010   |   Inventor(s): James Schwiegerling, Eustace Dereniak, Michael Kudenov, Haitao Luo, Kazuhiko Oka, Edward Dehoog
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry