Search Results - Devices

28 Results

Sort By:

Real-Time High-Resolution Eye-Tracking High-precision eye-tracking system using Purkinje reflections for real-time gaze localization in virtual and augmented reality applications Institute Reference: 1-18137 Background Eye-tracking systems are widely used in fields like clinical diagnostics, human-computer interaction, and virtual/augmented reality....

Published: 11/19/2025 | Inventor(s): Michele Rucci, Ruei-Jr Wu, Zhetuo Zhao

Keywords(s):

Category(s): Devices, Optics, Research Tools

Avalanche Photodiode Designs for Low Voltage Operation

A low-voltage, low-noise avalanche photodiode with advanced heterojunction design for enhanced infrared performance Institute Reference: 2-22082 Background Avalanche photodiodes (APDs) are critical optical detectors known for their high speed and gain, essential in applications requiring sensitive photon detection and fast response. Traditional infrared...

Published: 11/19/2025 | Inventor(s): Gary Wicks, Daniel Sidor

Keywords(s):

Category(s): Optics, Devices

Non-invasive Apparatus for Dry Eye Syndrome Diagnosis

A tear scope using macroscopic imaging ellipsometry and thermal imaging to measure dynamic lipid layer and aqueous distribution on the eye Institute Reference: 2-17089 Background Dry eye syndrome is a chronic condition typically caused by disorders of the ocular tear film. Research shows that lipid layer thickness and distribution uniformity correlate...

Published: 11/19/2025 | Inventor(s): James Zavislan, Aizhong Zhang

Keywords(s):

Category(s): Diagnostic, Optics, Devices

See-through Reflective Metasurface Diffraction Grating

Semi-transparent nanostructured surface applicable to AR/VR technology Institute Reference: 2-19053 Background Dielectric reflective metasurfaces provide a versatile alternative to conventional optics, especially in compact near-eye display systems for augmented reality applications. In typical reflective metasurfaces, there is a non-transparent...

Published: 10/22/2024 | Inventor(s): Jannick Rolland-Thompson, Anthony (Nick) Vamivakas, Fei Cheng, Aaron Bauer, Daniel Nikolov

Keywords(s):

Category(s): Optics, Devices

Enhanced VR Battery Life through Perception-Guided Color Encoding

Innovative VR display power reduction using color perception technology, which enhances battery life without sacrificing visual quality Institute Reference: 1-24019 Background The rapid advancement of Virtual Reality (VR) and Augmented Reality (AR) technologies has resulted in a growing demand for higher resolution, faster refresh rates, and improved...

Published: 10/22/2024 | Inventor(s): Yuhao Zhu, Abhishek Tyagi, Jiayi He, Budmonde Duinkharjav, Kenneth Chen, Qi Sun, Nisarg Ujjainkar

Keywords(s):

Category(s): Optics, Computer Software, Devices

Exploiting Human Color Discrimination for Memory- and Energy-Efficient Image Encoding in Virtual Reality

A VR image compression algorithm reducing DRAM traffic by 66.9% with minimal perceptual quality loss Institute Reference: 1-24027 Background Virtual Reality (VR) is emerging as a ubiquitous computing platform, with applications spanning healthcare, education, communication, training, and design. Efficient computing substrates are critical to VR’s...

Published: 10/22/2024 | Inventor(s): Yuhao Zhu, Nisarg Ujjainkar, Ethan Shahan, Kenneth Chen, Qi Sun, Budmonde Duinkharjav

Keywords(s):

Category(s): Optics, Computer Software, Devices

Optical Display Apparatus and Method for Head-Worn Displays

See-through optical display with freeform mirrors for compact, high-performance augmented reality applications Institute Reference: 2-11150-13008 Background Head-worn displays (HWDs) have become critical in augmented reality (AR) and virtual reality (VR) applications. These devices need to be compact and lightweight, with a minimal number of optical...

Published: 10/22/2024 | Inventor(s): Jannick Rolland-Thompson, Aaron Bauer

Keywords(s):

Category(s): Optics, Devices

Rapid Screening and Detection of Microplastic Particles

Background Myriad kinds of plastics have found their way into our environment, including many that either do not degrade or do so on the time scale of a thousand years. As plastics in the environment are subject to weather conditions, they break down into smaller particles, eventually reaching micron and even nanoparticle sizes. The presence of these...

Published: 8/7/2025 | Inventor(s): James McGrath, Greg Madejski, Wayne Knox, Ian Krout

Keywords(s):

Category(s): Devices

Fail-safe shutter operation system that safely terminates an electromagnetic wave beam upon interlock action

Background High-power electromagnetic radiation (ER) beams are usually isolated in an enclosed area guarded by a safety interlock. Opening of the entry point into the protected area causes the interlock to activate a safety system, preventing individuals from accidental exposure to the ER beam. In some systems, the interlock de-energizes the source...

Published: 8/7/2025 | Inventor(s): Astrid Mueller, Jeffrey Lefler

Keywords(s):

Category(s): Devices

Solid-state refrigeration technique based on repeated adiabatic magnetization/demagnetization cycles of a superconductor

Background A conventional refrigerator operates by doing work to compress a fluid and letting it freely expand in a phase transition where it cools down and absorbs heat from a cold reservoir. The now hot fluid is then re-compressed, liquifying it, and then dumps the excess heat to a hot reservoir, which is usually the environment that allows the fluid...

Published: 5/7/2024 | Inventor(s): Andrew Jordan, Sreenath Manikandan, Francesco Giazotto

Keywords(s):

Category(s): Devices

1 2 3