introduction to adaptive lenses

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Introduction To Adaptive Lenses

Author : Hongwen Ren
ISBN : 9781118270073
Genre : Science
File Size : 31. 34 MB
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Presents readers with the basic science, technology, and applications for every type of adaptive lens An adaptive lens is a lens whose shape has been changed to a different focal length by an external stimulus such as pressure, electric field, magnetic field, or temperature. Introduction to Adaptive Lenses is the first book ever to address all of the fundamental operation principles, device characteristics, and potential applications of various types of adaptive lenses. This comprehensive book covers basic material properties, device structures and performance, image processing and zooming, optical communications, and biomedical imaging. Readers will find homework problems and solutions included at the end of each chapter—and based on the described device structures, they will have the knowledge to fabricate adaptive lenses for practical applications or develop new adaptive devices or concepts for advanced investigation. Introduction to Adaptive Lenses includes chapters on: Optical lenses Elastomeric membrane lenses Electro-wetting lenses Dielectrophoretic lenses Mechanical-wetting lenses Liquid crystal lenses This is an important reference for optical engineers, research scientists, graduate students, and undergraduate seniors.

Progress In Optics

Author :
ISBN : 0444537066
Genre : Science
File Size : 50. 81 MB
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In the 50 years since the first volume of Progress in Optics was published, optics has become one of the most dynamic fields of science. The volumes in this series that have appeared up to now contain more than 300 review articles by distinguished research workers, which have become permanent records for many important developments. Invariant Optical Fields Quantum Optics in Structured Media Polarization and Coherence Optics Optical Quantum Computation Photonic Crystals Lase Beam-Splitting Gratings

Evaluating A Collaborative Adaptive Management Model Through The Lens Of Participatory Democracy A Case Study From The Work Plan Learning How To Apply Adaptive Management In The U S Forest Service Sierra Nevada Forest Plan Amendment

Author :
ISBN : 9781109096484
Genre :
File Size : 65. 59 MB
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This study indicates new opportunities for mutual learning in all five criteria areas. A key outcome of this evaluation indicates the need for expertise in collaborative leadership and basic facilitation skills for the agencies and the scientists to successfully implement collaborative AM. The results also provide an organizational structure and associated conceptual models that may build this capacity in scientists, agencies and public members participating in collaborative efforts. These tools will be further developed and evaluated as the project proceeds.

Adaptive Optics For Industry And Medicine

Author : Ulrich Wittrock
ISBN : 9783540288671
Genre : Technology & Engineering
File Size : 83. 77 MB
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The 4th International Workshop on Adaptive Optics for Industry and Me- cine took place in Munster, ̈ Germany, from October 19 to October 24, 2003. The series of International Workshops on Adaptive Optics for Industry and Medicine beganwiththe?rstworkshopinShatura/Russiain1997,thesecond workshop took place in Durham/England in 1999, and the third workshop was held in Albuquerque/USA in 2001. The workshop series started out as a true grassroots movement and kept an informal spirit throughout all four workshops. Many personal friendships and scienti?c collaborations have been formed at these meetings. This fourth workshop was supposed to be held in Beijing, China. H- ever, the program committee decided in May 2003 to move the workshop to Munster ̈ due the general perception that the SARS (Severe Acute R- piratory Syndrome) cases reported in China could lead to a large epidemic. Despite this rather short notice the workshop in Munster ̈ was attended by about 70 people. Incidentally, the workshop coincided with the 50th anniv- sary of adaptive optics, because it was October 1953 when Horace Babcock published his famous paper “The possibilities of compensating astronomical seeing” in the Publications of the Astronomical Society of the Paci?c.

Proceedings Of The 2nd International Workshop On Adaptive Optics For Industry And Medicine

Author : Gordon D. Love
ISBN : 9810241151
Genre : Science
File Size : 55. 61 MB
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This volume contains state-of-the-art research papers on adaptive optics used outside the usual astronomical and military applications. It is the first book to cover this new area of research. One of the main industrial applications is in the control of laser wavefronts, and the book contains papers on both intra- and extra-laser cavity correction. The measurement and control of ocular aberrations is the major medical application, and the topics are discussed by leading researchers in the field. Papers on adaptive optics components specifically for non-astronomical systems are also presented. Other topics include laser communications, microscopy and low-cost systems.

Contested Country

Author : Cathy Robinson
ISBN : 9780643101807
Genre : Science
File Size : 38. 65 MB
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In Contested Country, leading researchers in planning, geography, environmental studies and public policy critically review Australia's environmental management under the auspices of the Natural Heritage Trust over the past decade, and identify the challenges that must be met in the national quest for sustainability. It is the first comprehensive, critical examination of the local and regional natural resources management undertaken in Australia, using research sourced from all states as well as the Northern Territory. It addresses questions such as: How is accountability to be maintained? Who is included and who is excluded in decentralised environmental governance? Does the scale of bottom-up management efforts match the scale of environmental problems? How is scientific and technical fidelity in environmental management to be maintained when significant activities are devolved to and controlled by local communities? The book challenges some of the accepted benefits, assumptions and ideologies underpinning regional scaled environmental management, and is a must-read for anyone interested in this field.


Author : Hongrui Jiang
ISBN : 9781439836699
Genre : Technology & Engineering
File Size : 71. 59 MB
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Due to the development of microscale fabrication methods, microlenses are being used more and more in many unique applications, such as artificial implementations of compound eyes, optical communications, and labs-on-chips. Liquid microlenses, in particular, represent an important and growing research area yet there are no books devoted to this topic that summarize the research to date. Rectifying this deficiency, Microlenses: Properties, Fabrication and Liquid Lenses examines the recent progress in the emerging field of liquid-based microlenses. After describing how certain problems in optics can be solved by liquid microlenses, the book introduces the physics and fabrication methods involved in microlenses. It also details the facility and equipment requirements for general fabrication methods. The authors then present examples of various microlenses with non-tunable and tunable focal lengths based on different mechanisms, including: Non-tunable microlenses: Ge/SiO2 core/shell nanolenses, glass lenses made by isotropic etching, self-assembled lenses and lens arrays, lenses fabricated by direct photo-induced polymerization, lenses formed by thermally reflowing photoresist, lenses formed from inkjet printing, arrays fabricated through molding processes, and injection-molded plastic lenses Electrically tuned microlenses: liquid crystal-based lenses and liquid lenses driven by electrostatic forces, dielectrophoretic forces, electrowetting, and electrochemical reactions Mechanically tunable microlenses: thin-membrane lenses with varying apertures, pressures, and surface shapes; swellable hydrogel lenses; liquid–liquid interface lenses actuated by environmentally stimuli-responsive hydrogels; and oscillating lens arrays driven by sound waves Horizontal microlenses: two-dimensional polymer lenses, tunable and movable liquid droplets as lenses, hydrodynamically tuned cylindrical lenses, liquid core and liquid cladding lenses, air–liquid interface lenses, and tunable liquid gradient refractive index lenses The book concludes by summarizing the importance of microlenses, shedding light on future microlens work, and exploring related challenges, such as the packaging of systems, effects of gravity, evaporation of liquids, aberrations, and integration with other optical components.

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