Results 151 to 160 of about 655,925 (308)

Design and Evaluation of Uniform LED Illumination Based on Double Linear Fresnel Lenses [PDF]

open access: gold, 2020
Hoang Vu   +5 more
openalex   +1 more source

Advanced designs for fluid flow visualization [PDF]

open access: yes
Research was carried out on existing and new designs for minimally intrusive measurement of flow fields in the Geophysical Fluid Flow Cell and the proposed Atmospheric General Circulation Experiment. The following topics are discussed: (1) identification

core   +1 more source

Optimization of achromatic doublet on glass (ADG) Fresnel lens for different solar cell technologies [PDF]

open access: bronze, 2022
Guido Vallerotto   +5 more
openalex   +1 more source

Laser confocal microscope noise evaluation on injection compression moulded (ICM) transparent polymer Fresnel lenses [PDF]

open access: green, 2017
Dario Loaldi   +6 more
openalex  

High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens [PDF]

open access: bronze, 2021
Akihisa Takeuchi   +7 more
openalex   +1 more source

Spiral adaptive Fresnel lens: wave optics

open access: yesJournal of the Optical Society of America A
We recently introduced adaptive Fresnel lenses (AFLs) based on complementary cylindrical lenses “bent into” spirals. Here, we start to investigate the wave optics of such components. We calculate typical point-spread functions and investigate diffraction effects in the case of narrow windings.
Maik Locher   +3 more
openaire   +1 more source

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