Search Results - logan+graves

2 Results Sort By:
Virtual Deflectometry Enclosure Screen
This invention is a system designed to perform optical quality metrology on freeform or convex optics. This system provides a full aperture surface reconstruction sag map of freeform surfaces. The method relies on the creation of virtual source enclosure that surrounds the unit under testing (UUT) and produces a virtual 2 Pi-steradian measurement range....
Published: 3/11/2019   |   Inventor(s): Daewook Kim, Logan Graves
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Optical Fab / Metrology
Formulaic Imaging for Tissue Diagnosis
This patented system (U.S. Patent 9,952,157) uses a combination of green and blue fluorescence with reflectance, aimed at simple but effective contrast improvements through division, multiplication, subtraction and additions of individual images. To the best of our knowledge no other formulaic images system based on three or more components uses near-UV...
Published: 11/13/2013   |   Inventor(s): Urs Utzinger, Bhaskar Banerjee, Timothy Renkoski, Nathaniel Rial, Logan Graves
Keywords(s): autofluorescence, cancer, image contrast optimization, tryptophan
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry