Results 11 to 20 of about 128,668 (300)
Photonics, 2022 Continual improvements to holographic recording materials make the development of volume holographic optical elements increasingly more attainable for applications where highly efficient, lightweight diffractive optical elements can replace conventional ...
Brian Rogers +5 more
doaj +2 more sources
Volume Holographic Optical Elements as Solar Concentrators: An Overview
Applied Sciences, 2019 Generally, to reduce the area of a photovoltaic cell, which is typically very expensive, solar concentrators based on a set of mirrors or mechanical structures are used.
Maria Antonietta Ferrara +2 more
doaj +2 more sources
Photonics, 2021 An optical see-through two-dimensional (2D)/three-dimensional (3D) compatible display using variable-focus lens and multiplexed holographic optical elements (MHOE) is presented. It mainly consists of a MHOE, a variable-focus lens and a projection display
Qinglin Ji +5 more
doaj +2 more sources
A Novel Approach for Measurement of Free-Form Optical Elements with Digital Holographic Microscopy
Micromachines, 2022 Free-form optical elements face significant challenges in high-precision measurement due to their high complexity and non-rotational symmetry. Digital holographic microscopy (DHM), as one of the methods for the measurement of free-form optical elements ...
Xuhui Zhang +4 more
doaj +2 more sources
Photonics, 2022 Theoretical modelling has been used to calculate the holographic recording beam angles required in air (at any recording wavelength) to produce a Volume Holographic Optical Element (VHOE) for any defined input and output beam angles. The approach is used
Dipanjan Chakraborty +6 more
doaj +2 more sources
Advanced Photonics Research, 2021 Holographic optical elements (HOEs) exhibit several unique properties in arbitrary wavefront recording and extraction. Versatile recording mechanisms and material availabilities further expand their design flexibilities.
Jianghao Xiong +3 more
doaj +2 more sources
Compact design for optical-see-through holographic displays employing holographic optical elements
Optics Express, 2018 Holographic AR display is a promising technology for head-mounted display devices. However, it usually has a complicated optical system and a large form factor, preventing it from widespread applications. In this work, we propose a flat-panel design to produce a compact holographic AR display, where traditional optical elements are replaced by two ...
Pengcheng Zhou +3 more
openaire +3 more sources
Curved holographic optical elements and applications for curved see-through displays
Journal of Information Display, 2019 Holographic optical elements (HOEs) have been used as important tools for implementing augmented reality (AR) and see-through displays because they are transparent and thin.
Kiseung Bang +2 more
doaj +2 more sources
A Multi-Plane Augmented Reality Head-Up Display System Based on Volume Holographic Optical Elements With Large Area [PDF]
IEEE Photonics Journal, 2021 The traditional head-up display (HUD) system has the disadvantages of a small area and a single display plane, here we propose and design an augmented reality (AR) HUD system with multi-plane, large area, high diffraction efficiency and a single picture ...
Zhenlv Lv, Juan Liu, Liangfa Xu
semanticscholar +1 more source
Optics Express, 2023 Holographic optical elements (HOEs) play an important role in augmented reality (AR) systems. However, the fabrication of full-color HOEs is difficult and the diffraction efficiency is low.
Long He +6 more
semanticscholar +1 more source