Nonimaging optics for nonuniform brightness distributions

David G. Jenkins; Roland Winston

doi:10.1117/12.216988

21 August 1995 Nonimaging optics for nonuniform brightness distributions

David G. Jenkins, Roland Winston

Proceedings Volume 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III; (1995) https://doi.org/10.1117/12.216988
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We present a general design method of nonimaging optics that obtains the highest possible concentration for a given absorber shape. This technique, which uses a complimentary edge ray to simplify the geometrical formulism, recovers familiar designs for flat phase space distributions, such as trumpets, and (theta) ₁-(theta) ₂ concentrators. This method is easy to use and handles diverse boundary conditions, such as reflection, satisfying total internal reflection or design within a material of graded index. Presented is a novel two-stage 2D solar collector with a fixed circular primary mirror and nonimaging secondary. This newly developed secondary gives a 25% improvement over conventional nonimaging concentrators.

Citation Download Citation

David G. Jenkins and Roland Winston "Nonimaging optics for nonuniform brightness distributions", Proc. SPIE 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III, (21 August 1995); https://doi.org/10.1117/12.216988

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KEYWORDS

Solar concentrators

Reflectors

Mirrors

Nonimaging optics

Compound parabolic concentrators

Ray tracing

Optical design

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