Results 21 to 30 of about 27,968 (274)
Achromatic diffractive liquid-crystal optics for virtual reality displays
Light: Science & Applications, 2023 Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics.
Zhenyi Luo +4 more
semanticscholar +1 more source
Meta-optics achieves RGB-achromatic focusing for virtual reality
Science Advances, 2021 A large dispersion-engineered metalens achieves multicolor focusing and opens a path to a future virtual reality platform. Virtual and augmented realities are rapidly developing technologies, but their large-scale penetration will require lightweight ...
Zhaoyi Li +8 more
semanticscholar +1 more source
A Broadband Achromatic Dielectric Planar Metalens in Mid-IR Range
Photonic Sensors, 2022 Metalens are planar lenses composed of the subwavelength arrays, which have unconventional and versatile functionalities to manipulate the light fields compared with the traditional lens. It is noted that the most metalens are designed in a monochromatic
Ye Yuan +9 more
doaj +1 more source
Broadband Multifunctional Achromatic Metalens
, 2023 Metasurfaces offer novel design capability of optical wavefront shaping to realize ultra-compact flat optical components which have remarkable potential to mitigate the constraints of size and design complexities in imaging systems.
Mehmood, Muhammad Qasim +5 more
core +1 more source
Opto-Electronic Advances, 2022 Imaging polarimetry is one of the most widely used analytical technologies for object detection and analysis. To date, most metasurface-based polarimetry techniques are severely limited by narrow operating bandwidths and inevitable crosstalk, leading to ...
Yaxin Zhang +12 more
semanticscholar +1 more source
On-chip integration of achromatic metalens arrays. [PDF]
Nat CommunBroadband achromatic metalenses and metalens arrays hold promise for enabling high-performance optical imaging in a compact form factor. Conventional visible-light achromatic metalenses are composed of transparent and high-refractive-index TiO2 or GaN ...
Zhang Y +9 more
europepmc +2 more sources
Wideband and high-efficiency spin-locked achromatic meta-device
Nanophotonics, 2022 Achromatic devices present unique capabilities in efficient manipulation of waves and have wide applications in imaging and communication systems. However, the research of achromatic devices is limited by the narrow bandwidth, low efficiency as well as ...
Cui Xingshuo +7 more
doaj +1 more source
Coloronyms in water resource (on the material of German and Kyrgyz languages) [PDF]
BIO Web of ConferencesThe article is a detailed analysis of linguocultural aspects of the use of coloronyms in professionally marked units, namely in the context of water resources.
Beksultanova Gulzada Azimkanovna +3 more
doaj +1 more source
Achromatic Cues Are Important for Flower Visibility to Hawkmoths and Other Insects
Frontiers in Ecology and Evolution, 2022 Studies on animal colour vision typically focus on the chromatic aspect of colour, which is related to the spectral distribution, and disregard the achromatic aspect, which is related to the intensity (“brightness”) of a stimulus.
Casper J. van der Kooi, Almut Kelber
doaj +1 more source
See-Through Near-Eye Display with Built-in Prescription and Two-Dimensional Exit Pupil Expansion
Applied Sciences, 2020 We propose a see-through near-eye display featuring an exit pupil expander (EPE), which is composed of two multiplexed slanted gratings. Via a two-dimensional expansion, the exit pupil (EP) is able to be enlarged up to 10 × 8 mm2.
Wenbo Zhang +6 more
doaj +1 more source