In this work, a new design concept of SMS moving optics is developed, in which the movement is no longer lateral but
follows a curved trajectory calculated in the design process. Curved tracking trajectory helps to broaden the incident
angle’s range significantly. We have chosen an afocal-type structure which aim to direct the parallel rays of large
incident angles to parallel output rays. The RMS of the divergence angle of the output rays remains below 1 degree for
an incident angular range of ±450. Potential applications of this beam-steering device are: skylights to provide steerable
natural illumination, building integrated CPV systems, and steerable LED illumination.
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Wang Lin ; Pablo Benitez and Juan Carlos Miñano
Beam-steering array optics designs with the SMS method
", Proc. SPIE 8485, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX, 848505 (October 11, 2012); doi:10.1117/12.930759; http://dx.doi.org/10.1117/12.930759