Search Results - optics

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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

Estimation of Intraocular Lens Position and Tilt from Full Crystalline Lens Geometry

New 3D lens geometry-based formula improves intraocular lens positioning, reducing refractive errors in cataract surgery Institute Reference: 2-24053 Background In cataract surgery, selecting the correct intraocular lens (IOL) power is essential for achieving optimal visual outcomes. However, this process is often challenging due to the difficulty...

Published: 11/19/2025 | Inventor(s): Susana Marcos Celestino, Eduardo Martinez-Enriquez, Yue Zhao, Scott Macrae, Derick Ansah, Haci Ugur Celik, Müjdat Cetin

Keywords(s):

Category(s): Optics, Surgical/Medical Device

High Quality Lithium Niobate Devices

Method and device for fabricating waveguides for frequency conversion Institute Reference: 2-23013 Background Optical frequency conversion based upon a quadratic optical nonlinearity is a powerful technology to transfer high-coherence laser radiation into new frequencies. For thin-film lithium-niobate-on-insulators (LNOI’s), the efficiency...

Published: 10/22/2024 | Inventor(s): Qiang Lin, Jingwei Ling, Jeremy Staffa

Keywords(s):

Category(s): Computer Hardware, Optics, Nanotechnology

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

Multiconfiguration Afocal Freeform Telescope

An afocal telescope system with adjustable magnification and field of view (FOV) modes for object searching and object inspection Institute Reference: 2-24029 Background As applications for earth-viewing satellites become more diverse, the required specifications of on-board optical systems become increasingly complex and challenging to achieve...

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

Keywords(s):

Category(s): Optics, Imaging

Thin Large-Diameter Optics Foldable Intraocular Lens

A foldable intraocular lens designed to reduce dysphotopsia, enable small incision insertion, and provide high dioptric power Institute Reference: 6-20034 Background Intraocular lenses (IOLs) are commonly used in cataract surgery to replace the natural lens of the eye. While modern cataract surgery relies on small incisions to minimize complications...

Published: 10/22/2024 | Inventor(s): Scott Macrae, David Huang

Keywords(s):

Category(s): Optics, Surgical/Medical Device

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