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Characterization of the panoramic annular lens

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Abstract

The panoramic annular lens (PAL) consists of a single piece of glass, with spherical surfaces, that produces a flat annular image of the entire 360-deg surround of the optical axis of the lens. This paper describes the attributes of the PAL and shows that the lens maps elements from object to image space via a constant aspect ratio polar mapping. A panoramic video system (PVS) is described to illustrate how the characterization can be applied in experimental mechanics for cavity inspection and measurement.

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Authors and Affiliations

  1. Optical Fabrication Branch, George C. Marshall Space Flight Center, 35812, Huntsville, AL

    D. L. Lehner

  2. Physics Department at Northwestern University, 60208, Evanston, IL

    A. G. Richter (Graduate Student)

  3. Physics Department at Marquette University, 53233, Milwaukee, WI

    D. R. Matthys (Professor)

  4. Mechanical and Aerospace Engineering Department at the University of Alabana, 35899, Huntsville, AL

    J. A. Gilbert (Professor)

Authors
  1. D. L. Lehner
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  2. A. G. Richter
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  3. D. R. Matthys
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  4. J. A. Gilbert
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Lehner, D.L., Richter, A.G., Matthys, D.R. et al. Characterization of the panoramic annular lens. Experimental Mechanics 36, 333–338 (1996). https://doi.org/10.1007/BF02328575

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  • DOI: https://doi.org/10.1007/BF02328575

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