Search Results - huahong+(raymond)+tu

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A Wearable Multi-Functional Ophthalmic Device for Monitoring Oculomotor Components

The invention is a wearable ophthalmic device designed to monitor various aspects of eye function crucial for clear vision. It combines several diagnostic capabilities into a single, user-friendly device. These capabilities include capturing detailed images of the retina (fundus), tracking eye movements accurately, and measuring how well the eyes adjust...

Published: 7/22/2024 | Inventor(s): Hong Hua, Yanzhao Lu

Keywords(s):

Category(s): Technology Classifications > Imaging & Optics > Ophthalmology, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Displays

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

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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

Nanoporous Aluminum Oxide Surface for Enhanced Cryogenic Heat Transfer

Anodized Aluminum Oxide Nanoporous Surface Layer for Significant Boiling and Quenching Heat Transfer ImprovementThis cryogenic heat transfer surface made of aluminum and an anodized aluminum oxide layer is capable of substantial heat transfer enhancement in all three boiling and quenching regimes. The surface layer features nanoscopic pores that effectively...

Published: 4/12/2022 | Inventor(s): Kirk Ziegler, Yang Zhao, Cheng Xu, Hong Hu, Jacob Chung

Keywords(s): Boiling Phenomena, cooling, nanoporous surface texture

Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Materials

Method of Authenticating Caller Identity and Call Request Header Data for Outbound Telephony and Data Calls

A lack of a secure caller ID scheme in today's telephone network system leaves users susceptible to voice and voicemail spam used to gain access to sensitive personal information. Additionally, caller ID masking prevents law enforcement agents from tracing a call and tracking down a criminal. Current caller ID authentication systems are computationally-intensive...

Published: 2/23/2023 | Inventor(s): Huahong (raymond) Tu, Adam Doupe, Ziming Zhao, Gail-Joon Ahn

Keywords(s): Networks, IT, Software and Communication

Category(s): Wireless & Networking