Perfect geodesic lens for waveguides and optical processor of un

Details Perfect geodesic lens for waveguides and optical processor of un Perfect geodesic lens for waveguides and optical processor of un

1979-08-03

1982-08-24

Corbin, John K.

G02B 514

Patent

active

043458157

ABSTRACT:
A geodesic lens for waveguides formed by four concentric zones, of which the two exterior ones, having an external radius a and b, are portions of a plane surface, the central zone, having a radius d, represents the actual lens, and the remaining zone, having an external radius c, is a connecting portion without discontinuities with the contiguous portions having an external radius respectively equal to d and b, said parameters a, b, d, having been selected according to the optical characteristics of the lens to be obtained, taking into account the formulae: focal length f=ab/(a+b), aperture=2d, linear magnification X=b/a (or X=a/b according to the position of the image with respect to the source).

REFERENCES:
Righini et al., Geodesic Lenses for Guided Optical Waves, Applied Optics, Jul. 1973, pp. 1477-1481.

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