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Effective formation method for an aspherical microlens array based on an aperiodic moving mask during exposure[J]. Applied Optics, 2007, 46(34): 8346-8350. doi: 10.1364/AO.46.008346 …
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A new scheme of conical-wedge-shaped fiber endface for coupling ..... to control over two axial curvatures and a small fiber offset through grinding and polishing processes to ... of aspherical microlens for high-power ...
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An aspherical microlens assembly for deep brain fluorescence microendoscopy Biochem Biophys Res Commun. 2020 Jun 25;527(2):447-452. doi: 10.1016/j.bbrc.2020.04.009. Epub 2020 Apr 23. Authors Masaaki Sato 1 ...
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e aspherical microlens shape attached on the OLED can reduce the ratio of total re ection in substrate to improve the e ciency of an OLED when the waveguide phenomenonwhich occurs between air and glass is reduced. three dimensions aspherical microlens arrays (D A-MLAS) optical lms were fabricated. In electroforming, the Ni-Co
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The report on the Global Microlens Arrays Market gives an estimation of the development of the market based on historical studies and also provides forecasts on the basis of a comprehensive research. The report gives a complete market analysis for the forecasted period from 2021 to 2027. The market is divided into various segments with an in ...
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. 6. The Research of Precision Injection Molding of Optical Plastic Lens; . 7. Varying slightly from sphericity and having only slight aberration, as a lens.,,. 8 ...
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In this study, we reported the development of an aspherical microlens assembly for fluorescence microendoscopy and its utilization for imaging neuronal activity in the deep brain. While previously described relevant microendoscope objectives have relatively complex optical designs and large outer diameters (1.27–2.6 mm) [ 12, 20, 21 ], our ...
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Aspheric microlens array mold design and processing. (a) Design of aspheric microlens array with basic geometric parameters, (b) mold processing, and (c) characterization of microlens …
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Mobile crusher can work in the places with complex environments, so it is particularly used to process construction waste. Similarly, it also includes mobile jaw crusher, mobile cone crusher and mobile impact crusher, etc. kinds of equipment, which provides many choices for customers.
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[29] Yanlong Li, Kangsen Li, Feng Gong*. Fabrication and optical characterization of polymeric aspherical microlens array using hot embossing technology. Applied Sciences. 2021, 11: 882(12pp). [28] Chao Yan, Kaizhe Chen, Feng Gong*. Precision micromassive forming of microgears at different temperatures. Strength of Materials. 2021, 53: 55-64.
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• Microlens arrays for fiber coupling and optical switching • Microlenses for collimation of laser diodes and VCSELs • Microlens arrays for imaging and sensor systems • Beam homogenizers for high-power lasers and illumination • Array optics with precise lens positioning • High-class lens quality (aspherical …
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In this paper, a silicon mold, with spherical/aspherical concave microlens arrays, was made by using ICP dry etching technique. A PMMA microlens was molded by using this mold and then tested by SEM, Dektakprofiler and etc.
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Focal spot size of LD around 9 µm is achieved experimentally. Light coupling efficiency between LD and optical fiber, using this double plano-convex microlens, is 27.57% and 44.23% for single ...
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Hot embossing has been widely used in fabricating microlens arrays because of its low cost, high efficiency, and high quality. The process parameters such as molding temperature, molding pressure, and holding temperature affect the microlens array's replication quality. This work selected the stainless steel S136H tool steel as the mold material to process an aspheric microlens array ...
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A new process to replicate an aspheric lens is presented in this study. A mold of oxygen free copper (OFC) is fabricated using ultraprecision machining, which is a popular material for machining ...
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Study on using a process which was combined LIGA (Lithographie Galvanoformung Abformung) with etching to manufacture an optical film of an aspherical microlens array (A-MLA), which can improve the extraction efficiency of an OLED (Organic Light-Emitting Diode).
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Abstract: We propose and demonstrate a new scheme of aspherical microlens (ASM) employing a single-. step grinding technique with fully autom ated process for efficient coupling between the high ...
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Microlens - Wikipedia, the free encyclopedia ; Fabrication · Applications · Characterisation · Microoptics in nature ; More sophisticated lenses may use aspherical surfaces and others may use several layers of optical material ... then mounting and grinding the lenses using ...
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We demonstrate a new scheme of aspherical microlens (ASM). By employing a single-step grinding with fully automatic technique to precisely and quantitatively control the grinding offset less than ...
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An idea of aspherical microlens for fiber coupler of edge emitting LD has been proposed, . These Micro-cylindrical lenses and micro-elliptical lenses directly fabricated by focus ion beam (FIB) on silicon dioxide (SiO2) layers deposited on a LD surface can significantly increase the coupling efficiency.
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An ultra-precision CNC grinder of the aspheric surface micro-lens is required to make high-quality aspheric surface micro-lens, which have been machined with tool path of aspheric surface shape and surface roughness, and the profile accuracy of aspheric surface micro-lens could be improved with a high-precision grinding system.
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3D aspherical microlens array fabricated by Nanoscribe's Photonic Professional 3D printer in very short time. Image: Aleksander Bogucki, University of Warsaw 3D-printed aberration-corrective phase plate to improve the imaging performance of high-precision X-ray optics. Image: A. Schropp, D. Brückner, J. Bulda, G. Falkenberg, J. Garrevoet, J. Hagemann, F. Seiboth, K. Spiers, F. Koch, C ...
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We demonstrate a new scheme of aspherical microlens (ASM). By employing a single-step grinding with fully automatic technique to precisely and quantitatively control the grinding offset less than 0.5 µm and minor radius of curvature within 2.4 - 3.5 µm, the ASMs exhibited a high-average coupling efficiency of 84.5%. This study demonstrates that the proposed ASMs through a single-step ...
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The proposed aspherical microlens arrays are being used in spectroscopic measurements of single nanometer-sized light emitters such as quantum dots. Here typically, heavy microscope objectives of up to half of a kilogram and of nearly a handbreadth size are positioned at a distance of a few millimeters from the analysed sample.
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The aspherical microlens shape attached on the OLED can reduce the ratio of total reflection in substrate to improve the efficiency of an OLED when the waveguide phenomenon which occurs between air and glass is reduced. three dimensions aspherical microlens …
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We demonstrate a new scheme of aspherical microlens (ASM). By employing a singlestep grinding with fully automatic technique to precisely and quantitatively control the grinding offset less than 0.5 μm and minor radius of curvature within 2.4–3.5 μm, the ASMs exhibited a …
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. Optical glass lens moulded technology is a high precision machining technology and one of the state-of the-art optical part machining method .The popularization and promotion of this technology have been an important revolution in optical glass part machining field, because this technology can directly mold materials to precise optical elements, so we can use optical elements ...
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