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Anti-eikonal equation of an eigenmirror
Journal article   Open access

Anti-eikonal equation of an eigenmirror

R. Andrew Hicks, Ronald K. Perline and Sarah G. Rody
Journal of the Optical Society of America. A, Optics, image science, and vision, v 37(10), pp 1566-1573
01 Oct 2020
PMID: 33104602
url
https://doi.org/10.1364/josaa.401301View
Accepted (AM)Open Access (Publisher-Specific) Open

Abstract

Optics Physical Sciences Science & Technology
We call a surface that appears undistorted when viewed in a curved mirror an eigensurface and the mirror an eigenmirror. Such pairs are described by a first-order nonlinear partial differential equation of the form a(0) + a(1)u(x) + a(2)u(y) + a(3)u(x)u(y) + a(4)u(x)(2) + a(5)u(y)(2) = 0, where a(i) = a(i)(x, y, u), which we call the anti-eikonal equation. We give examples of symbolic and numerical solutions, including pairs that are geometrically congruent. Ray tracing simulations are included that visually confirm the unusual properties of these surfaces. (C) 2020 Optical Society of America

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