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Characterization of the panoramic annular lens (1996)

Lehner, D. L. ; Richter, A. G. ; Matthys, D. R. ; [et al.]

Springer

Experimental mechanics 36 (1996), S. 333-338

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ISSN: 1741-2765

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02328575

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