Optical Design using Fresnel Lenses Basic principles and some practical examples
نویسندگان
چکیده
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 or feasibility study.
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 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 کاملLED and Fresnel design and characterization Using Zemax optical design code
LEDs are more commonly being used in optical systems due to the advances in LED technology in power, efficiency, cost and wavelength output; especially white light LEDs. Fresnel lenses are also cost effective and advancements in aspheric Fresnel lens manufacturing have made these lenses effective optical elements. Various optical design codes allow for accurate modeling of these incoherent ligh...
متن کاملElectrically switchable cylindrical Fresnel lens based on holographic polymer-dispersed liquid crystals using a Michelson interferometer
Fabricating an electrically switchable cylindrical Fresnel lens based on holographic polymer-dispersed liquid crystals (H-PDLC) using a Michelson interferometer is reported. Simplicity of the method and possibility of fabricating different focal length lenses in a single set up are among the advantages of the method. It is demonstrated that the Fresnel structured zone plate acts as a cylindrica...
متن کاملDaylighting System Based on Novel Design of Linear Fresnel lens
In this paper, we present a design and optical simulation of a daylighting system using a novel design of linear Fresnel lens, which is constructed based on the conservation of optical path length and edge ray theorem. The linear Fresnel lens can achieve a high uniformity by using a new idea of design in which each groove of the lens distributes sunlight uniformly over the receiver so that the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008