Search Results - hong+hua

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Perceptual-Driven Foveated Optical See-Through Head-Mounted Displays
This invention consists of the design and embodiments of a statically optical see through head-mounted displays (OST-HMDs) in which the angular pixel density decreases with the increase of the filed eccentricity according to a specified angular pixel density function. To facilitate the head-mounted display capability to simultaneously see the image...
Published: 6/27/2024   |   Inventor(s): Hong Hua, Pengyinjie Lyu
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Displays
A Multi-Functional Three-Dimensional Microscopic System with Structured Illumination and Optical Depth Scanning
This technology is a telecentric microscope design that reconciles the resolution vs. depth of field issues associated with microscope systems. The microscope's design maintains constant system magnification while it performs a depth scan with an electrically controlled vari-focal lens. Background: The classic tradeoff between optical resolution...
Published: 6/6/2024   |   Inventor(s): Hong Hua, Sheng-Huei Lu
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry
Multi-Resolution Foveated Laparoscope
Researchers at the University of Arizona have developed an optical design for laparoscopes that can obtain wide angle and high magnification images of a surgical area in real time. The two images enable seamless registration between the low and high-resolution images, providing surgeons with the best of both worlds. In addition, the innovation enables...
Published: 6/6/2024   |   Inventor(s): Hong Hua, Mike Nguyen, Yi Qin
Keywords(s): foveated imaging, laparoscope, multi-resolution
Category(s): Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Imaging & Optics
Improved Illumination System of Laparoscope Using an Aspherical Lens Array
University of Arizona researchers have developed a more uniform illumination system for better medical images. The system directs outgoing rays from the fiber bundle to provide more uniform illumination, even with extended non-lambertian sources, allowing the full field of view to be fully observed with good detail. It is low cost and can be easily...
Published: 6/6/2024   |   Inventor(s): Hong Hua, Rengmao Wu, Yi Qin
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Materials & Fabrication