Results 71 to 80 of about 5,505 (209)

Fully Convolutional Approaches for Numerical Approximation of Turbulent Phases in Solar Adaptive Optics

Mathematics, 2021
Information on the correlations from solar Shack–Hartmann wavefront sensors is usually used for reconstruction algorithms. However, modern applications of artificial neural networks as adaptive optics reconstruction algorithms allow the use of the full ...
Francisco García Riesgo, Sergio Luis Suárez Gómez, Enrique Díez Alonso, Carlos González-Gutiérrez, Jesús Daniel Santos   +4 more
doaj   +1 more source

Optical characterisation and vision quality assessment of two myopia control contact lenses

Ophthalmic and Physiological Optics, Volume 45, Issue 5, Page 1142-1150, July 2025.
Abstract Purpose This investigation examined the image and vision quality of two commercially available daily disposable myopia control soft contact lenses. Methods Wavefront errors were measured with an SHS Ophthalmic aberrometer for two myopia control soft contact lenses: a coaxially designed dual‐focus lens (omafilcon A, CooperVision MiSight® 1 day,
Josh Richards, Matt Jaskulski, Jill Woods, Sarah Guthrie, Pete Kollbaum   +4 more
wiley   +1 more source

On-sky multi-wavelength phasing of segmented telescopes with the Zernike phase contrast sensor

, 2011
Future Extremely Large Telescopes will adopt segmented primary mirrors with several hundreds of segments. Cophasing of the segments together is essential to reach high wavefront quality.
Cavarroc, Chanan, Chanan, Dohlen, Dohlen, Dupuy, Gilmozzi, Gonte, Houairi, Lofdahl, Martinez, Mazzoleni, Montoya-Martínez, Nelson, Pinna, Polhemus, Surdej, Wilhelm, Yaitskova, Yaitskova, Zernike   +20 more
core   +3 more sources

Laboratory and telescope demonstration of the TP3-WFS for the adaptive optics segment of AOLI [PDF]

, 2017
AOLI (Adaptive Optics Lucky Imager) is a state-of-art instrument that combines adaptive optics (AO) and lucky imaging (LI) with the objective of obtaining diffraction limited images in visible wavelength at mid- and big-size ground-based telescopes.
Colodro Conde, Carlos, Femenia, Bruno, Fernández Valdivia Juan José, King, David L., Labadie, Lucas, López López, Roberto, Mackay, Craig, Oscoz Abad, Alejandro, Puga Antolín, Marta, Pérez Garrido, Antonio, Rebolo López, Rafael, Rodríguez Coira, Gustavo, Rodríguez Ramos, José Manuel, Rodríguez Ramos, Luis Fernando, Toledo Moreo, Rafael, Toledo Moreo, Rafael, Villo Pérez, Isidro   +16 more
core   +3 more sources

Deconvolution Techniques in Optical Coherence Tomography: Advancements, Challenges, and Future Prospects

Laser &Photonics Reviews, Volume 19, Issue 12, June 18, 2025.
This review explores deconvolution techniques in optical coherence tomography (OCT), addressing resolution degradation from point‐spread functions (PSF). It reviews foundational principles (e.g., Richardson‐Lucy deconvolution) to advanced AI‐driven methods, emphasizing clinical translation and interdisciplinary collaboration. Real‐world implementations
Syeda Aimen Abbasi, Di Mei, Yuanyuan Wei, Chao Xu, Syed Muhammad Tariq Abbasi, Sadia Shakil, Wu Yuan   +6 more
wiley   +1 more source

A new low-cost, compact, auto-phoropter for refractive assessment in developing countries

Scientific Reports, 2017
Using a phoropter to measure the refractive error is one of the most commonly used methods by ophthalmologists and optometrists. Here, we demonstrate design and fabrication of a portable automatic phoropter with no need for patient’s feedback. The system
Babak Amirsolaimani, Gholam Peyman, Jim Schwiegerling, Arkady Bablumyan, N. Peyghambarian   +4 more
doaj   +1 more source

Real-Time Wavefront Sensing at High Resolution with an Electrically Tunable Lens

Sensors, 2023
We have designed, assembled, and evaluated a compact instrument capable of capturing the wavefront phase in real time, across various scenarios. Our approach simplifies the optical setup and configuration, which reduces the conventional capture and ...
Ricardo Oliva-García, Carlos Cairós, Juan M. Trujillo-Sevilla, Miriam Velasco-Ocaña, José Manuel Rodríguez-Ramos   +4 more
doaj   +1 more source

Multiwavelength active optics Shack-Hartmann sensor for seeing and turbulence outer scale monitoring

, 2014
Real-time seeing and outer scale estimation at the location of the focus of a telescope is fundamental for the adaptive optics systems dimensioning and performance prediction, as well as for the operational aspects of instruments.
Martinez, Patrice
core   +1 more source

Depth-resolved wavefront aberrations using a coherence-gated Shack-Hartmann wavefront sensor [PDF]

Optics Express, 2010
In the present paper we investigate the possibility of narrowing the depth range of a physical Shack - Hartmann (SH) wavefront sensor (WFS) by using coherence gating. For the coherence gating, two low coherence interferometry (LCI) methods are evaluated and proof of principle configurations demonstrated: (i) a time domain LCI method based on phase ...
Tuohy, Simon, Podoleanu, Adrian G.H.
openaire   +2 more sources

Application of artificial intelligence in myopia prevention and control

Pediatric Investigation, Volume 9, Issue 2, Page 114-124, June 2025.
Current applications of artificial intelligence (AI) in the field of myopia prevention and control were comprehensively reviewed. Challenges, current development status, and future directions of AI have also been discussed, holding great significance for the further application of AI in myopia management.
Nan Liu, Li Li, Jifeng Yu
wiley   +1 more source