Scanning of skin gloss by a diffractive optical element-based handheld glossmeter
Sign Up to like & getrecommendations! Published in 2018 at "Optical Review"
DOI: 10.1007/s10043-018-0462-z
Abstract: Skin specular gloss (referred to as “gloss’’) determination is important in dermatology and cosmetic industry as it gives an indication of the skin health and beauty. Its accurate determination is, therefore, necessary. Commercially available glossmeters… read more here.
Keywords: glossmeter; diffractive optical; skin gloss; gloss ... See more keywords
An effective on-line surface particles inspection instrument for large aperture optical element
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Automation and Computing"
DOI: 10.1007/s11633-017-1079-6
Abstract: Surface particles growing in large aperture optical element (LAOE) have significant impact on LAOE’s stable operation. It is a challenge for the online system to inspect the particles with long working distance, enough precision and… read more here.
Keywords: surface particles; system; surface; large aperture ... See more keywords
Fast and robust method for flow analysis using GPU assisted diffractive optical element based background oriented schlieren (BOS)
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105908
Abstract: Abstract The paper introduces a method for studying flow dynamics using diffractive optical element based background-oriented schlieren (BOS). Our method relies on fringe demodulation using root multiple signal classification technique which provides high robustness against… read more here.
Keywords: diffractive optical; element based; based background; method ... See more keywords
Ball lens as secondary optical element for CPV system
Sign Up to like & getrecommendations! Published in 2017 at "Solar Energy"
DOI: 10.1016/j.solener.2017.02.009
Abstract: Abstract Various measures should be taken to optimize the performance, minimize the cost and improve the reliability of CPV concentrator. This paper presents theoretical analysis and experimental verification on a concentrator optical system with geometrical… read more here.
Keywords: cpv system; cpv; optical element; ball lens ... See more keywords
Experimental realization of a Fresnel hologram as a super spectral resolution optical element
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-99955-w
Abstract: A highly dispersive, diffractive optical element is designed and realized for an extremely high spectral resolution spectroscopy for exoplanet telescope application. Our design uses an annular Fresnel hologram to transform incident starlight directly into a… read more here.
Keywords: resolution; fresnel hologram; spectral resolution; optical element ... See more keywords
Paraxial design of an optical element with variable focal length and fixed position of principal planes.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.003714
Abstract: In this article, we analyze the problem of the paraxial design of an active optical element with variable focal length, which maintains the positions of its principal planes fixed during the change of its optical… read more here.
Keywords: principal planes; variable focal; paraxial design; optical element ... See more keywords
Pixelated volume holographic optical element for augmented reality 3D display.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.456824
Abstract: Augmented reality (AR) three-dimensional (3D) display is the hardware entrance of metaverse and attracts great interest. The fusion of physical world with 3D virtual images is non-trivial. In this paper, we proposed an AR 3D… read more here.
Keywords: holographic optical; optical element; display; pixelated volume ... See more keywords
Microflow multi-layer diffraction optical element processed by hybrid manufacturing technology.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.464192
Abstract: Traditional planar diffractive optical elements (DOEs) are challenged in imaging systems due to diffraction efficiency and chromatic dispersion. In this paper, we have designed a microfluidic diffractive optical element (MFDOE), which is processed by digital… read more here.
Keywords: diffraction; multi layer; optical element;
Single optical element to generate a meter-scale THz diffraction-free beam.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.471070
Abstract: Diffraction-free electromagnetic beam propagates in free space without change in its two-dimensional transverse profile. Elongating diffraction-free length can benefit the practical application of this beam. Here, we demonstrate that a THz diffraction-free beam with meter-scale… read more here.
Keywords: beam; free beam; diffraction free; optical element ... See more keywords
Verification of an Accommodative Response for Depth Measurement of Floating Hologram Using a Holographic Optical Element
Sign Up to like & getrecommendations! Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10196788
Abstract: Floating holograms using holographic optical element screens differ from existing systems because they can float 2D images in the air and provide a sense of depth. Until now, the verification of such displays has been… read more here.
Keywords: depth; using holographic; optical element; holographic optical ... See more keywords
Distortion-Corrected Integral Imaging 3D Display System Based on Lens Array Holographic Optical Element
Sign Up to like & getrecommendations! Published in 2022 at "Symmetry"
DOI: 10.3390/sym14071481
Abstract: We propose a distortion-corrected integral imaging (II) 3D display system based on lens array holographic optical element (LAHOE). The LAHOE is used as a projection screen. The projection beam of the LAHOE is parallel light.… read more here.
Keywords: system; projection; optical element; display ... See more keywords