Results 71 to 80 of about 243,834 (314)

Chromatic Aberration in Wavefront Coding Imaging with Trefoil Phase Mask

open access: yesPhotonics
The refractive index of the lenses used in optical designs varies with wavelength, causing light rays to fail when focusing on a single plane. This phenomenon is known as chromatic aberration (CA), chromatic distortion, or color fringing, among other ...
Miguel Olvera-Angeles   +2 more
doaj   +1 more source

Design of a Prism-Grating Wide Spectral Range Transmittance Imaging Spectrometer

open access: yesSensors, 2023
As spectroscopic detection technology rapidly advances, back-illuminated InGaAs detectors with a wider spectral range have emerged. Compared to traditional detectors such as HgCdTe, CCD, and CMOS, InGaAs detectors offer a working range of 400–1800 nm and
Xu Zhang   +6 more
doaj   +1 more source

Chromatic Aberration [PDF]

open access: yes, 2014
Chromatic Aberration is a film installation which explores the early technologies of colour filmmaking drawn from the archives of George Eastman House, Rochester, New York. Featuring vibrant close-ups of eyes from fledgling archival experiments in colour
Satz, Aura
core  

Impact of longitudinal chromatic aberration on through-focus visual acuity.

open access: yesOptics Express, 2019
An enhanced adaptive optics visual simulator (AOVS) was used to study the impact of chromatic aberration on vision. In particular, through-focus visual acuity (VA) was measured in four subjects under three longitudinal chromatic aberration (LCA ...
Nikolai Suchkov, E. Fernández, P. Artal
semanticscholar   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Creating effective focus cues in multi-plane 3D displays. [PDF]

open access: yes, 2011
Focus cues are incorrect in conventional stereoscopic displays. This causes a dissociation of vergence and accommodation, which leads to visual fatigue and perceptual distortions.
Akeley, Kurt   +2 more
core   +2 more sources

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Liquid Crystal Spatial Light Modulator with Optimized Phase Modulation Ranges to Display Multiorder Diffractive Elements

open access: yesApplied Sciences, 2019
A liquid crystal on silicon spatial light modulator (LCoS SLM) with large phase modulation has been thoroughly characterized to operate optimally with several linear phase modulation ranges (π, 2π, 3π, 4π, 6π, and 8π) for an
Elisabet Pérez-Cabré   +1 more
doaj   +1 more source

Spherical aberration correction in a scanning transmission electron microscope using a sculpted foil

open access: yes, 2017
Nearly twenty years ago, following a sixty year struggle, scientists succeeded in correcting the bane of electron lenses, spherical aberration, using electromagnetic aberration correction.
Arie, Ady   +7 more
core   +1 more source

Dynamic chromatic aberration pre-compensation scheme for ultrashort petawatt laser systems.

open access: yesOptics Express, 2019
A novel chromatic aberration pre-compensation scheme for ultrashort petawatt laser systems was proposed. The pre-compensation scheme consists of a convex lens, group of concave lenses, and a spherical reflector combined with a conventional vacuum chamber.
Ziruo Cui   +17 more
semanticscholar   +1 more source

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