Concentrating photovoltaic system using a fresnel lens and nonimaging secondary optics

申请公布号：IL200552(A)

申请号：IL20090200552

申请日期：2009.08.23

申请公布日期：2014.03.31

申请人：

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

摘要：<p>Optical devices and systems that provide high solar flux onto a multi-junction solar cell, or other target cell, to produce efficient electrical output. An optical device includes a primary focusing element, and a non-imaging secondary concentrator having an entry aperture and an exit aperture. The primary focus element is configured to focus light from a distant source onto the entry aperture of the secondary concentrator. The primary focusing element has an f-number that is greater than about 1, e.g., between 1 and 4 or greater. The device includes a solar cell located proximal to the exit aperture of the secondary concentrator. In certain aspects, the primary focusing element includes a Fresnel lens, a diffractive lens and/or a reflector. In certain aspects, a Fresnel lens used as the primary is flat, substantially square, curved and/or refractive.</p>

墙纸(6)

墙纸(44)

椅(YH-124)

布(44)

布(218B)

布(8)

床(R5138P)

床(9803)

型材(E8348)

盥洗镜(30)

锁(9)

LED灯泡(1曲)

床单(30)

型材(W8002-1)

瓶

箱体(2)

桌(M68107)

型材(GR6003)

T恤(墨)

开关(P031612A)