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Proceedings Paper • Open Access

A complete ray-trace analysis of the Mirage toy
Author(s): Sriya Adhya; John W. Noé

Paper Abstract

The ‘Mirage’ (Opti-Gone International) is a well-known optics demonstration (PIRA index number 6A20.35) that uses two opposed concave mirrors to project a real image of a small object into space. We studied image formation in the Mirage by standard 2x2 matrix methods and by exact ray tracing, with particular attention to additional real images that can be observed when the mirror separation is increased beyond one focal length. We find that the three readily observed secondary images correspond to 4, 6, or 8 reflections, respectively, contrary to previous reports.

Paper Details

Date Published: 3 June 2007
PDF: 7 pages
Proc. SPIE 9665, Tenth International Topical Meeting on Education and Training in Optics and Photonics, 966518 (3 June 2007); doi: 10.1117/12.2207520
Show Author Affiliations
Sriya Adhya, Stony Brook Univ. (United States)
John W. Noé, Stony Brook Univ. (United States)


Published in SPIE Proceedings Vol. 9665:
Tenth International Topical Meeting on Education and Training in Optics and Photonics
Marc Nantel, Editor(s)

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