Results 11 to 20 of about 1,326 (153)
The effect of Fresnel prisms on dynamic visual acuity
British and Irish Orthoptic Journal, 2010 Aim: To investigate the effect of Fresnel prisms on dynamic visual acuity (DVA). Methods: Sixteen participants with normal visual acuity aged between 18 and 22 years were tested monocularly with four strengths of base-out Fresnel prisms (0Δ, 5 Δ, 15 Δ,
Gail Maconachie +2 more
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The effect of luminance on visual acuity with Fresnel prisms
British and Irish Orthoptic Journal, 2011 Aim: To investigate and compare the effect of Fresnel prisms on visual acuity in photopic and mesopic conditions. Methods: Twelve participants aged between 18 and 26 years were recruited who had good visual acuity and normal binocular single vision ...
Rachel Knight, Helen J. Griffiths
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Application of Fresnel Prism in the Complex Treatment of Friendly Strabismus
Oftalʹmologiâ, 2018 Purpose: To analyze the effectiveness of Fresnel prism in the complex treatment of friendly strabismus.Patients and methods. The main group consisted of 428 patients with strabismus, who were assigned Fresnel prisms in combination with pleoptoorthoptic ...
V. N. Kurochkin +4 more
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Physical Review Applied, 2023 Space-time modulation-based metamaterials have recently spurred considerable interest, owing to the fundamental addition of the time dimension to the medium parameters, and resulting novel properties and potential applications. However, the implementation of most related structures -- e.g., involving step, slab or gradient discontinuities -- has been ...
Zhiyu Li +4 more
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Journal of Ophthalmology, 2020 The paper points to the principle of prisms: if a prism is placed in front of the strabismic eye, images of objects impinging upon the peripheral retina are projected to the central pit, which creates optimal conditions for cooperation of both eyes and ...
V.I. Serdiuchenko
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Advanced Study of Optical Imaging Systems for Virtual Reality Head-Mounted Displays
Photonics, 2023 Driven by the rapid innovation of science and technology and industrial manufacturing technology, virtual reality display technology has developed rapidly. At present, the application of virtual reality display technology is expanding in many fields such
Zhongju Ren +4 more
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Kerala Journal of Ophthalmology, 2017 Prisms are used in diagnosis and Therapy of Ophthalmic disorders. Prismotherapy provides symptomatic relief not only in many kinds of squints, but also in non strabismic conditions like convergence insufficiency, nystagmus, heminopia etc. One of the most
J Antony
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High-Transmission Neutron Optical Devices Utilizing Micro-Machined Structures
Quantum Beam Science, 2023 Neutrons are a powerful probe in material science with unique penetrating abilities. A major challenge stems from the fact that neutron optical devices are limited to refractive indices on the order of n≈1±10−5.
Connor Kapahi +8 more
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Large Scale Spectral Splitting Concentrator Photovoltaic System Based on Double Flat Waveguides
Energies, 2020 In this research, we present a novel design for a large scale spectral splitting concentrator photovoltaic system based on double flat waveguides. The sunlight concentrator consists of a Fresnel lens array and double waveguides.
Ngoc Hai Vu +2 more
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Calculate The Resonance Angle of Surface Plasmon Resonance Gold film Configured with Kretschmann
Tikrit Journal of Pure Science, 2022 The current work includes measurements of the resonance angle and reflectance for p-polarization of the electric field by using the Fresnel equation at a given length. Gold's surface plasmon wave can be seen at the metal-to-air boundary.
Yadgar Hussein Shwan
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