无线光通信中的非成像集中器

在无线光通信领域,利用非成像光学设计的集中器能够聚集光辐射能量,而且相对于成像性集中器具有更紧凑的结构和更高的增益.利用光线追迹法对半球形集中器的性质进行了分析与研究.对好几种非成像集中器:半球形集中器,复合抛物线形集中器,介质内部全反射集中器,多表面集中器,多相介质集中器,从设计原理、增益和视场进行比较,并分析其应用场合.

Nonimaging concentrators in optical wireless communications

In the field of optical wireless links,concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators.Hemispherical concentrators are studied by ray tracing,then for several normal nonimaging concentrators: hemispherical concentrators,compound parabolic concentrators (CPC),dielectric totally internally reflecting concentrators (DTIRC),simultaneous multiple surfaces concentrators (SMS) and inhomogeneous media concentrators (Poisson bracket),the design methods and the performances e.g. the gain and the field of view (FOV) are compared as well as the application suggestion.