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A New Liquid Crystal Acoustical-to-Optical Display

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In the last decade several attempts have been made to develop a real-time acoustical-tooptical display. Temperature sensitive liquid crystals have been utilized with some degree of success, although the time and intensity required to obtain the color change and the insufficient resolution make this method unsuitable for practical purposes. Recently, it was proposed to use nematic liquid crystal cells biased with electric or magnetic field. Alignment of the liquid crystals can, however, be obtained by chemical means too. It proved that cells based on this concept may act as real-time acoustical-to-optical converters.
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Document Type: Research Article

Publication date: July 1, 1973

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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