Download or read book High quality liquid crystal tunable lenses and optimization with floating electrodes written by Liwei Li and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Crystal Optical Device written by Leszek R. Jaroszewicz and published by MDPI. This book was released on 2020-01-03 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Liquid Crystal Optical Devices” discusses recent developments in the rapidly advancing subject of liquid crystals (LCs). The book is composed of several contributions from researchers in the field of liquid crystals that deal with the broadly with aspects of optical devices ranging from a theoretical viewpoints to practical implications of the properties of LCs. This is the first Special Issue devoted solely to recent advances in the rapidly expanding subject of LCs, a unique class of substances that combines both ordered structures with quasi-liquid-like properties. This Special Issue offers a broad perspective of the present state of the art in design and an up-to-date account of the most recent advances and progress in the field of LCs, providing thorough coverage of the demonstrated optical devices and the comprehensive analysis needed by professionals and engineers in the field of LC. The material is carefully structured, providing readers with a solid foundation of the principles, capabilities, use, and limitations of LC optical devices. In addition, this book covers the principles, recent advances and future developments of liquid crystal beam steering devices as well as recent advances in adaptive liquid crystal lenses.
Download or read book Continuously Tunable Large Aperture Liquid Crystal Based Lens For De Focus And Astigmatism Correction written by Amit Kumar Bhowmick and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In imaging system, de-focus and astigmatism are the most common optical aberrations, and finding non-mechanical approach of correcting these aberrations is of great interest. Although non-mechanical correction of de-focus has been widely studied, astigmatism correction remains relatively unexplored. Motivated by this gap, this Ph.D. thesis focuses on the development of a new type of gradient refractive index (GRIN) liquid crystal (LC) lenses capable of non-mechanical correction of both astigmatism and de-focus. The proposed device consists of a stack of three electrically tunable cylindrical lenses that implement a concentric stripe electrode and segmented phase profile design. This system offers several advantages, including a simple, low-cost structure, a large aperture size (50 mm), low voltage drive, and a compact design. Compared to conventional mechanical approaches, this non-mechanical solution has significant potential for various applications such as wavefront correction in large telescopes, microscopy, augmented reality/virtual reality, and prescription eyeglasses. In the second part of the thesis, challenges associated with concentric electrode-based large aperture (50 mm) LC lenses with segmented phase profile designs are investigated, including haze-related and diffraction-related issues. Effective solutions are provided to enhance the optical quality of these lenses (reduction of fringing field effect with an insulator layer and inclusion of black mask). By addressing these challenges, a 50 mm aperture size electrically focus tunable LC spherical lens with enhanced optical quality is developed. The proposed tunable lenses exhibit lightweight (
Download or read book Liquid Crystal Devices written by Thomas Kallard and published by . This book was released on 1973 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Cell Electron Microscopy written by Frances M. Ross and published by Cambridge University Press. This book was released on 2017 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2.6.2 Electrodes for Electrochemistry
Download or read book Transparent Conductive Materials written by David Levy and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by well-known pioneers in the field, this handbook and ready reference provides a comprehensive overview of transparent conductive materials with a strong application focus. Following an introduction to the materials and recent developments, subsequent chapters discuss the synthesis and characterization as well as the deposition techniques that are commonly used for energy harvesting and light emitting applications. Finally, the book concludes with a look at future technological advances. All-encompassing and up-to-date, this interdisciplinary text runs the gamut from chemistry and materials science to engineering, from academia to industry, and from fundamental challenges to readily available applications.
Download or read book Fundamentals of Liquid Crystal Devices written by Deng-Ke Yang and published by John Wiley & Sons. This book was released on 2014-12-03 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Crystal Devices are crucial and ubiquitous components of an ever-increasing number of technologies. They are used in everything from cellular phones, eBook readers, GPS devices, computer monitors and automotive displays to projectors and TVs, to name but a few. This second edition continues to serve as an introductory guide to the fundamental properties of liquid crystals and their technical application, while explicating the recent advancements within LCD technology. This edition includes important new chapters on blue-phase display technology, advancements in LCD research significantly contributed to by the authors themselves. This title is of particular interest to engineers and researchers involved in display technology and graduate students involved in display technology research. Key features: Updated throughout to reflect the latest technical state-of-the-art in LCD research and development, including new chapters and material on topics such as the properties of blue-phase liquid crystal displays and 3D liquid crystal displays; Explains the link between the fundamental scientific principles behind liquid crystal technology and their application to photonic devices and displays, providing a thorough understanding of the physics, optics, electro-optics and material aspects of Liquid Crystal Devices; Revised material reflecting developments in LCD technology, including updates on optical modelling methods, transmissive LCDs and tunable liquid crystal photonic devices; Chapters conclude with detailed homework problems to further cement an understanding of the topic.
Download or read book Optical Measurements for Scientists and Engineers written by Arthur McClelland and published by Cambridge University Press. This book was released on 2018-04-19 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible, introductory text explaining how to select, set up and use optical spectroscopy and optical microscopy techniques.
Download or read book Electrooptic Effects in Liquid Crystal Materials written by L.M. Blinov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrooptic effects provide the basis for much liquid-crystal display technology. This book, by two of the leaders in liquid-crystal research in Russia, presents a complete and accessible treatment of virtually all known phenomena occurring in liquid crystals under the influence of electric fields.
Download or read book Smart Mini Cameras written by Tigran V. Galstian and published by CRC Press. This book was released on 2013-09-24 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieve the Best Camera Design: Up-to-Date Information on MCMsMiniature camera modules (MCMs), such as webcams, have rapidly become ubiquitous in our day-to-day devices, from mobile phones to interactive TV systems. MCMs-or "smart" cameras-can zoom, adjust their frame rate automatically with illumination change, focus at different distances, compen
Download or read book The Eye written by John V. Forrester and published by Elsevier Health Sciences. This book was released on 2015-06-01 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eye: Basic Sciences in Practice provides highly accessible, concise coverage of all the essential basic science required by today's ophthalmologists and optometrists in training. It is also essential reading for those embarking on a career in visual and ophthalmic science, as well as an invaluable, current refresher for the range of practitioners working in this area. This new fourth edition has now been fully revised and updated in line with current curricula, key research developments and clinical best practice. It succinctly incorporates the massive strides being made by genetics and functional genomics based on the Human Genome Project, the new understanding of how the microbiome affects all aspects of immunology, the remarkable progress in imaging technology now applied to anatomy and neurophysiology, as well as exciting new molecular and other diagnostic methodologies now being used in microbiology and pathology. All this and more collectively brings a wealth of new knowledge to students and practitioners in the fields of ophthalmology and visual science. For the first time, this (print) edition also now comes with bonus access to the complete, fully searchable electronic text - including carefully selected additional information and new video content to further explain and expand on key concepts - making The Eye a more flexible, comprehensive and engaging learning package than ever before. The only all-embracing textbook of basic science suitable for trainee ophthalmologists, optometrists and vision scientists - other books concentrate on the individual areas such as anatomy. Attractive page design with clear, colour diagrams and text boxes make this a much more accessible book to learn from than many postgraduate textbooks. Presents in a readable form an account of all the basic sciences necessary for an understanding of the eye - anatomy, embryology, genetics, biochemistry, physiology, pharmacology, immunology, microbiology and infection and pathology. More on molecular pathology. Thorough updating of the sections on pathology, immunology, pharmacology and immunology. Revision of all other chapters. More colour illustrations Comes with complete electronic version
Download or read book Surface Microscopy with Low Energy Electrons written by Ernst Bauer and published by Springer. This book was released on 2014-07-10 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by a pioneer in surface physics and thin film research and the inventor of Low Energy Electron Microscopy (LEEM), Spin-Polarized Low Energy Electron Microscopy (SPLEEM) and Spectroscopic Photo Emission and Low Energy Electron Microscopy (SPELEEM), covers these and other techniques for the imaging of surfaces with low energy (slow) electrons. These techniques also include Photoemission Electron Microscopy (PEEM), X-ray Photoemission Electron Microscopy (XPEEM), and their combination with microdiffraction and microspectroscopy, all of which use cathode lenses and slow electrons. Of particular interest are the fundamentals and applications of LEEM, PEEM, and XPEEM because of their widespread use. Numerous illustrations illuminate the fundamental aspects of the electron optics, the experimental setup, and particularly the application results with these instruments. Surface Microscopy with Low Energy Electrons will give the reader a unified picture of the imaging, diffraction, and spectroscopy methods that are possible using low energy electron microscopes.
Download or read book Liquid Crystal Dispersions written by Paul S Drzaic and published by World Scientific. This book was released on 1995-09-18 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer-dispersed liquid crystal (PDLC) materials are of interest both for their potential in display technology and the fascinating science found in liquid crystals confined to small cavities. Liquid Crystal Dispersions is a comprehensive overview of the science and technology of this new class of materials. Topics covered include formation of PDLC devices, a catalog of droplet structures and transformations, device electro-optical properties, and applications. Liquid Crystal Dispersions will be of value to the nonspecialists keen on gaining an overview of this new field, as well as to specialists interested in a comprehensive review of work in this area.
Download or read book Transmission Electron Microscopy written by C. Barry Carter and published by Springer. This book was released on 2016-08-24 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a companion volume to Transmission Electron Microscopy: A Textbook for Materials Science by Williams and Carter. The aim is to extend the discussion of certain topics that are either rapidly changing at this time or that would benefit from more detailed discussion than space allowed in the primary text. World-renowned researchers have contributed chapters in their area of expertise, and the editors have carefully prepared these chapters to provide a uniform tone and treatment for this exciting material. The book features an unparalleled collection of color figures showcasing the quality and variety of chemical data that can be obtained from today’s instruments, as well as key pitfalls to avoid. As with the previous TEM text, each chapter contains two sets of questions, one for self assessment and a second more suitable for homework assignments. Throughout the book, the style follows that of Williams & Carter even when the subject matter becomes challenging—the aim is always to make the topic understandable by first-year graduate students and others who are working in the field of Materials Science Topics covered include sources, in-situ experiments, electron diffraction, Digital Micrograph, waves and holography, focal-series reconstruction and direct methods, STEM and tomography, energy-filtered TEM (EFTEM) imaging, and spectrum imaging. The range and depth of material makes this companion volume essential reading for the budding microscopist and a key reference for practicing researchers using these and related techniques.
Download or read book The Current Trends of Optics and Photonics written by Cheng-Chung Lee and published by Springer. This book was released on 2014-11-25 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optics and photonics offer new and vibrant approaches to meeting the challenges of the 21st century concerning energy conservation, education, agriculture, personal health and the environment. One of the most effective ways to address these global problems is to provide updated and reliable content on light-based technologies. Optical thin films and meta-materials, lasers, optical communications, light-emitting diodes, solar cells, liquid crystal technology, nanophotonics and biophotonics all play vital roles in enriching our lives. We hope to raise readers’ awareness of how optical technologies are now promoting sustainable development and providing reliable solutions to basic human needs. Furthermore, in order to broaden new research fields, we hope to inspire them to pursue further cutting-edge breakthroughs on the basis of the accomplishments that have already been made.
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Crystal Sensors written by Albert Schenning and published by CRC Press. This book was released on 2017-09-01 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Crystal Sensors discusses novel applications of liquid crystals that lie beyond electrically driven optical switches and displays. The main focus is on recent progress in the area of sensors based on low molar mass and polymer liquid crystals. This area of research became "hot" in recent years since the possibilities for applications of liquid crystal sensors are growing in many areas, ranging from the detection of mechanical displacements to the detection of environmental pollutants and chemical agents. This book is well-suited for students, as well as scientists from different backgrounds. For students and researchers new to the field, it gives a thorough introduction. For experienced researchers it shows the latest breakthroughs and serves as an inspiration for solving problems or sparking new ideas. Key Features: Emphasizes how liquid crystals are extremely sensitive to external stimuli and therefore can be used for the construction of stimuli-responsive devices, such as sensors Includes the contributions of editors who are deeply involved in the field and author chapters on hot topics such as the sensitivity of liquid crystals to pollutants, UV light, and strain Provides an exclusive on LC sensors where having the data in one place will be very useful to the community Gives more information on sensors and broadens the scope by having a contributed volume rather than authored Combines recent data on advances in the area of liquid crystal sensors that includes many types of liquid crystal materials
