Compound catoptric cartesian ovoid lens

Details Compound catoptric cartesian ovoid lens Compound catoptric cartesian ovoid lens

1986-11-17

1988-06-28

Corbin, John K.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250239, G02B 302

Patent

active

047535202

ABSTRACT:
A substantially solid transparent molded plastic body focuses light from an internal point to a point external to the body. The body has a center section with a surface having the curvature of a Cartesian Ovoid of revolution and a peripheral section. The peripheral section includes an inner refracting surface in the shape of a diverging truncated cone whose apex substantially coincides with the internal point and an outer reflecting surface in the shape of a polynomial curve of revolution. The slope of the outer surface causes it to reflect light rays between the refractory inner surface and the internal point. A light source such as an LED, or a photo-detector, may be immersed in the body at the internal point.

REFERENCES:
Southall; Mirrors, Prisms and Lenses; The MacMillian Co., 1923; pp. 617-625.
Huygens; Treatise on Light; Dover Publications, Inc., 1978: Translated by Thompson in 1912; pp. 104-115.

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