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This invention is a reference-free snapshot wavefront camera that can be used to measure both amplitude and phase of the wavefront. The camera uses a two-dimensional diffraction grating to split the incoming wavefront into multiple copies which then travel through a lens that focuses them onto a sensor in a camera array. The resulting wavefront information...

Published: 7/2/2025 | Inventor(s): David Brady, Ni Chen, Shengtai Zhu, Gregory Nero

Keywords(s):

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

Dispersive Element as a Wavelength Recombiner for AVHF

This invention is a technique to compensate for the spectral dispersion of the Advanced Volume Holographic Filter (AVHF) using yet another dispersive element. This new element acts as a spectral recombiner and collimate all the different wavelengths. Background: The Advanced Volume Holographic Filter (AVHF) is a holographic system capable of broadband...

Published: 3/18/2024 | Inventor(s): Pierre Blanche, Pedro Alcaraz, Gregory Nero, Andrew Suzuki

Keywords(s):

Category(s): Technology Classifications > Imaging & Optics > Sensors and Detection, Technology Classifications > Software & Information Technology > Signal Processing