منابع مشابه
Optical Design using Fresnel Lenses
The Fresnel lens can be used in a wide variety of applications. The basic principles of the Fresnel lens are review ed and some practical examples are des cribed. There are definite advantages and tradeoffs that should be considered when deciding if a Fresnel lens is the appropri ate component to use in a design. Some basic optimization rules are presented which may facilitate a first order ...
متن کاملOptical Design using Fresnel Lenses Basic principles and some practical examples
The fresnel lens can be used in a wide variety of applications. The basic principles of the fresnel lens are reviewed and some practical examples are described. There are definite advantages and tradeoffs that should be considered when deciding if a fresnel lens is the appropriate component to use in a design. Some basic optimization rules are presented which may facilitate a first order design...
متن کاملDesigning the optimal Fresnel lenses by using Zemax software
In this paper, the optimal Fresnel lenses are designed by Zemax software.The fundamental problem of the Fresnel lenses is the beam divergence, which wasresolved by decreeing the output stain diameter on the image plane. For this purpose,two types of radial and cylindrical Fresnel lenses are simulated with different groovesusing Global and Hammer optimization methods. The minimum output stain di...
متن کاملDesign of the Secondary Optical Elements for Concentrated Photovoltaic Units with Fresnel Lenses
The goal of this presented study was to determine the optimum parameters of secondary optical elements (SOEs) for concentrated photovoltaic (CPV) units with flat Fresnel lenses. Three types of SOEs are under consideration in the design process, including kaleidoscope with equal optical path design (KOD), kaleidoscope with flat top surface (KFTS), and open-truncated tetrahedral pyramid with spec...
متن کاملOptical-CT 3D Dosimetry Using Fresnel Lenses with Minimal Refractive-Index Matching Fluid
Telecentric optical computed tomography (optical-CT) is a state-of-the-art method for visualizing and quantifying 3-dimensional dose distributions in radiochromic dosimeters. In this work a prototype telecentric system (DFOS-Duke Fresnel Optical-CT Scanner) is evaluated which incorporates two substantial design changes: the use of Fresnel lenses (reducing lens costs from $10-30K t0 $1-3K) and t...
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ژورنال
عنوان ژورنال: Optik & Photonik
سال: 2007
ISSN: 1863-1460
DOI: 10.1002/opph.201190287