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Proceedings Paper

Optimized image-forming cemented-doublet concentrator
Author(s): Narkis Shatz; John Bortz
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Paper Abstract

We consider the problem of designing an ultra-high-numerical-aperture rotationally symmetric monochromatic imaging concentrator that could be used for optical detection and tracking. This problem combines requirements for both high-efficiency flux transfer and low focal-plane aberrations. A solution has been previously demonstrated using the 2D SMS technique, resulting in the RX concentrator design. We review the RX concentrator and analyze its performance. We then describe a numerical test of the RX concentrator for optimality, performed using a global optimization procedure. We present the results of this test, which produced a counter-example possessing significantly improved imaging and nonimaging performance. The solution space was then extended to a globally optimized cemented-doublet comprising three aspheric surfaces, of which two are refractive and the third reflective. Compared with the original RX concentrator, the optimized doublet provides a threefold reduction in the mean aberration level within the field of view, combined with a significant improvement in flux-transfer efficiency, without any increase in the axial lens thickness.

Paper Details

Date Published: 20 August 2005
PDF: 11 pages
Proc. SPIE 5942, Nonimaging Optics and Efficient Illumination Systems II, 59420G (20 August 2005); doi: 10.1117/12.619364
Show Author Affiliations
Narkis Shatz, Science Applications International Corp. (United States)
John Bortz, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 5942:
Nonimaging Optics and Efficient Illumination Systems II
Roland Winston; R. John Koshel, Editor(s)

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