Results 71 to 80 of about 9,035 (308)
Full Vectorial Field Sensing Using Liquid Crystal Droplet Arrays
Advanced Materials, EarlyView.An inkjet‐printed liquid crystal droplet array enables compact, low‐cost, single‐shot sensing of the full vectorial light field. Within a single platform, it simultaneously retrieves intensity, polarization, and phase, while dual‐wavelength operation highlights its capability for multi‐wavelength optical field characterization. ABSTRACT Determining the
Xuke Qiu +10 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Objective refraction from monochromatic wavefront aberrations via Zernike power polynomials
, 2007 With the increased popularity of wavefront sensor devices there has been significant interest in relating the subjectively measured sphero-cylindrical refractive error to the objectively measured wavefront aberrations. We investigate the applicability of
Michael J. Collins +7 more
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Advanced Optical Materials, EarlyView.A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez +4 more
wiley +1 more source
Simultaneously measuring ocular aberration and anterior segment biometry during accommodation [PDF]
Journal of Innovative Optical Health Sciences, 2015 In the human eye, accommodation is essential for functional vision. However, the mechanisms regulating accommodation and the ocular parameters affecting aberrations remain to be explored.
Yuanyuan Wang, Yilei Shao, Yimin Yuan
doaj +1 more source
Wavefront Aberration Measurement Deflectometry for Imaging Lens Tests
Applied Sciences, 2022 Lenses play an important role in imaging systems. Having an effective way to test the aberrations of imaging lenses is important. However, the existing methods cannot satisfy the requirements in some conditions.
Linzhi Yu +5 more
doaj +1 more source
Wavefront-Guided and Wavefront-Optimised Laser Treatments
, 2012 Optical aberrations of the eye are the errors of the optical system that limit the resolution, contrast and amount of detail in the image formed on the retina. Wavefront technology allows us to measure these optical aberrations, calculate mathematically,
Canan Aslı Utine, YILDIRIM, CANAN ASLI
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Ocular wavefront aberrations in patients with macular diseases [PDF]
, 2009 BACKGROUND: There have been reports that by compensating for ocular aberrations using adaptive optical systems it may be possible to improve the resolution of clinical retinal imaging systems beyond what is now possible.
고형준
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Cornea, 2013 Purpose: The aim was to assess the visual impact of ocular wavefront aberrations, corneal thickness, and corneal light scatter prospectively after performing a Descemet stripping automated endothelial keratoplasty (DSAEK) in humans.
H. Hindman +8 more
semanticscholar +1 more source
Machine Learning Enables Inverse Design of Optically Driven Microscopic Metavehicles
Advanced Optical Materials, EarlyView.Machine‐learning‐based inverse design is used optimize “metavehicles” — flat microparticles based on metagratings that generate a strong lateral optical force from normally incident light. The optimized design exhibits a force efficiency of ∼88% and a measured propulsion speed in water much higher than previously reported, demonstrating that inverse ...
Vasilii Mylnikov +2 more
wiley +1 more source