From Event: SPIE Optical Engineering + Applications, 2016
We demonstrate 3D-printed nonimaging concentrators and propose a tracking integration scheme to reduce the external
tracking requirements of CPV modules. In the proposed system, internal sun tracking is achieved by rotation of the
mini-concentrators inside the module by small motors. We discuss the design principles employed in the development
of the system, experimentally evaluate the performance of the concentrator prototypes, and propose practical
modifications that may be made to improve on-site performance of the devices.
Harry Apostoleris, Julian Leland, Matteo Chiesa, and Marco Stefancich, "3D-printed concentrators for tracking-integrated CPV modules," Proc. SPIE 9955, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIII—Commemorating the 50th Anniversary of Nonimaging Optics, 995507 (Presented at SPIE Optical Engineering + Applications: August 28, 2016; Published: 7 September 2016); https://doi.org/10.1117/12.2237786.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon