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Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract: and time consuming to use machining processes, such as grinding, polishing and lapping, to produce opticalPrecision glass molding (PGM) has thus been developed to realize an efficient manufacture of such opticalFor example, a PGM process must be carried out within the super-cooled region of optical glass aboveSuch complexity often leads to residual stresses and shape distortion in a lens molded, causing unexpectedmanufacturing chain consideration from mold material selection, property and deformation characterization of optical

Keywords： precision glass molding     optical lens     constitutive modeling     optimization     manufacturing chain     Industry    

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Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 66-76 doi: 10.1007/s11465-017-0417-2

Abstract:

Aspheric lens can eliminate spherical aberrations, coma, astigmatism, field distortions, and otherThis type of lens can also reduce the loss of light energy and obtain high-quality images and opticaland high-efficiency manufacturing technology for machining small-diameter aspheric lens for industrialHowever, the residual stress and profile deviation of the glass lens are greatly affected by various, and lens molding.

Keywords： aspheric glass lens     mold-die manufacturing     lens molding     molding process simulation    

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Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 1-31 doi: 10.1007/s11465-020-0602-6

Abstract: Optical interferometry is a powerful tool for measuring and characterizing areal surface topography inA variety of instruments based on optical interferometry have been developed to meet the measurementThis paper provides an in-depth perspective of surface topography reconstruction for optical interferometricPrinciples, configurations, and applications of typical optical interferometers with different capabilitiesThis paper also presents the new challenges that optical interferometry techniques are facing in surface

Keywords： surface topography     measurement     optical interferometry     coherence envelope     phase-shifting algorithm    

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Characterization of aerodynamic performance of wind-lens turbine using high-fidelity CFD simulations

Islam HASHEM, Aida A. HAFIZ, Mohamed H. MOHAMED

Frontiers in Energy 2022, Volume 16, Issue 4,   Pages 661-682 doi: 10.1007/s11708-020-0713-0

Abstract: Wind-lens turbines (WLTs) exhibit the prospect of a higher output power and more suitability for urbanThe wind-lens typically comprises a diffuser shroud coupled with a flange appended to the exit peripheryIn this paper, the aerodynamic performance of the wind-lens is computationally assessed using high-fidelitythat the proposed methodology could be able to precisely predict the aerodynamic behavior of the wind-lensThe results affirm that wind-lens with cycloidal profile yield an augmentation of about 58% increase

Keywords： shroud     diffuser-augmented wind turbine (DAWT)     Betz limit     aerodynamics     computational fluid dynamics (CFD)    

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Extended Hemispherical Lens and Its Applications in Millimeter Wave Focal Imaging Systems

Sun Zhongliang,Dou Wenbin

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 42-47

Abstract: This paper analyzes extended hemispherical lens, which can be used in focal imaging.lens.of the lens is analyzed by using Stratton-Chu formula and ray tracing method.It will provide much information about the imaging performance of the lens.Furthermore, the lens can be used to couple with a quasi-optical system.

Keywords： millimeter waves     antennas     imaging     extended hemispherical lens    

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The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 86-94

Abstract:

In this paper, new development about the study of dispersion-compensable low transmission loss opticalfiber, nonzero dispersion displacement optical fiber, and carbon-coated or silicon nitride-coated opticalThen the manufacture technology of band optical fiber including its structure, coatings, properties andMulti-core optical fiber band cable manufacture technology such as twisted loose-tube, center loose-tube, frame, dry core band optical cable was also discussed.

Keywords： optical communication     low transmission loss optical fiber     optical fiber band     band optical fiber cable    

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Optical Problems in Imaging Optical Engineering

Pan Junhua

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 32-35

Abstract: According to the trend of technical progress, it is unavoidable to use reflective optical systems, andFor optical system design, the main problem is how to construct an effective reflecting system whichmay be optimized by the optical CAD.

Keywords： imaging optics     aspheric mirror     optical design     optical fabrication and testing    

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Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 673-683 doi: 10.1007/s11708-019-0630-2

Abstract: The optical performance of a receiver has a great influence on the efficiency and stability of a solarMost of the literature focuses on the optical performance of receivers with different geometric shapesThese factors affect the optical efficiency, the maximum heat flux density, and the light distributionThe increase in the number of loops contributed to an increase in the optical efficiency and a uniformThe conical cavity receiver had an optimal optical performance when the focal point of the collector

Keywords： parabolic collector     conical cavity receiver     critical geometric parameters     optical performance    

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Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 46-65 doi: 10.1007/s11465-017-0425-2

Abstract:

Optical microstructures are increasingly applied in several fields, such as optical systems, precisionThis paper presents an overview of optical microstructure fabrication through glass molding and highlightsthe applications of optical microstructures in mold fabrication and glass molding.

Keywords： optical microstructure     microgroove     microlens     glass molding process     single-point diamond cutting    

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High-Speed Parallel Plasmonic Direct-Writing Nanolithography Using Metasurface-Based Plasmonic Lens Article

Yueqiang Hu, Ling Li, Rong Wang, Jian Song, Hongdong Wang, Huigao Duan, Jiaxin Ji, Yonggang Meng

Engineering 2021, Volume 7, Issue 11,   Pages 1623-1630 doi: 10.1016/j.eng.2020.08.019

Abstract: However, a smaller and steadier plasmonic nanogap, new scheme of plasmonic lens, and parallel processingA multi-stage metasurface-based polarization insensitive plasmonic lens is proposed to couple more powerproposed system holds great potential for high- freedom nanofabrication with low cost, such as planar optical

Keywords： Nanofabrication     Surface plasmon polariton     Lithography     Plasmonic flying head     Plasmonic lens    

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Review of optical tweezers in vacuum Special Feature on Precision Measurement and Inst

Nan LI, Xun-min ZHU, Wen-qiang LI, Zhen-hai FU, Meng-zhu HU, Hui-zhu HU

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5,   Pages 655-673 doi: 10.1631/FITEE.1900095

Abstract:

As a versatile tool for trapping and manipulating neutral particles, optical tweezers have been studiedFurthermore, unlike levitating particles in liquid or air, optical tweezers operating in vacuum are isolatedIn this paper we review the history and the basic concepts of optical tweezers in vacuum and provide

Keywords： Optical tweezers     Optical trapping in vacuum     Optical cooling    

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Miniaturized Rotman lens with applications to wireless communication Research Articles

Bao-hua SUN, Qiu-yan LIANG, Gao-nan ZHOU

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 144-158 doi: 10.1631/FITEE.1900501

Abstract: Rotman lens is a type of beamforming network with many advantages, such as true-time delay characteristicRotman lens has been used in a wide range of applications in today’s wireless communication systems.However, the size of a conventional Rotman lens is considerably large.to reduce the size of the ports and hence the total area occupied by the Rotman lens.Using the proposed truncated ports with energy distribution slots, the size of the Rotman lens can be

Keywords： Rotman lens     Miniaturization     Multibeam     Beamformer     Wireless communication    

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A Numerical Convex Lens for the State-Discretized Modeling and Simulation of Megawatt Power Electronics Article

Bochen Shi, Zhengming Zhao, Yicheng Zhu, Zhujun Yu, Jiahe Ju

Engineering 2021, Volume 7, Issue 12,   Pages 1766-1777 doi: 10.1016/j.eng.2021.07.011

Abstract: To address this challenge, this paper proposes the numerical convex lens approach to achieve state-discretizedThe numerical convex lens approach leads to the highly efficient simulation of intricate GHSs across

Keywords： Generalized hybrid systems     Megawatt power electronics     Modeling and simulation     Numerical convex lens    

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On-Line Supervisory Technology for Q-Factor in the Optical Supervisory Channel of Optical Transport Network

Tang Yong,Sun Xiaohan,Zhang Mingde,Ding Dong

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 71-75

Abstract:

In this paper, a hierarchical model of the optical transport network (OTN) with an optical supervisory

Keywords： optical transport network (OTN)     optical supervisory channel (OSC)     OAM     Q-factor supervision    

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New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 646-653 doi: 10.1631/FITEE.1400406

Abstract: In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation

Keywords： Adjoint operator     Orthogonal     Chebyshev     Pseudospectral method     Dirichlet-to-Neumann map    

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Title Author Date Type Operation

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Journal Article

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Journal Article

Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Journal Article

Characterization of aerodynamic performance of wind-lens turbine using high-fidelity CFD simulations

Islam HASHEM, Aida A. HAFIZ, Mohamed H. MOHAMED

Journal Article

Extended Hemispherical Lens and Its Applications in Millimeter Wave Focal Imaging Systems

Sun Zhongliang,Dou Wenbin

Journal Article

The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Journal Article

Optical Problems in Imaging Optical Engineering

Pan Junhua

Journal Article

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Journal Article

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Journal Article

High-Speed Parallel Plasmonic Direct-Writing Nanolithography Using Metasurface-Based Plasmonic Lens

Yueqiang Hu, Ling Li, Rong Wang, Jian Song, Hongdong Wang, Huigao Duan, Jiaxin Ji, Yonggang Meng

Journal Article

Review of optical tweezers in vacuum

Nan LI, Xun-min ZHU, Wen-qiang LI, Zhen-hai FU, Meng-zhu HU, Hui-zhu HU

Journal Article

Miniaturized Rotman lens with applications to wireless communication

Bao-hua SUN, Qiu-yan LIANG, Gao-nan ZHOU

Journal Article

A Numerical Convex Lens for the State-Discretized Modeling and Simulation of Megawatt Power Electronics

Bochen Shi, Zhengming Zhao, Yicheng Zhu, Zhujun Yu, Jiahe Ju

Journal Article

On-Line Supervisory Technology for Q-Factor in the Optical Supervisory Channel of Optical Transport Network

Tang Yong,Sun Xiaohan,Zhang Mingde,Ding Dong

Journal Article

New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Journal Article