Electromagnetic energy directing method and apparatus

Details Electromagnetic energy directing method and apparatus Electromagnetic energy directing method and apparatus

1996-03-08

1998-10-06

Sugarman, Scott J.

Optical: systems and elements

Lens

With reflecting element

376103, 376104, G02B 1700, G21B 100

Patent

active

058186492

ABSTRACT:
A method and apparatus for directing electromagnetic energy may be used as a directed energy weapon, illuminator for an active sensor and/or guidance system, counter-measure, or to ignite a fusion weapon; as a beam expander; for power transmission by a beam; propulsion by a beam or inertial fusion; power generation from inertial fusion; telecommunication; or computer hardware. The method and apparatus direct electromagnetic energy from a source made up of an area or volume as opposed to a point. Electromagnetic energy of at least one wavelength is emitted first towards a defined surface and thence to a defining surface. Each surface is either everywhere reflective or refractive, and each point on the defined surface lies at a point of intersection of a pair of defining rays radiating from different points on or within the source. Each defining ray is of a defining wavelength. Each defining ray is reflected or refracted by the defined surface and is then incident to the same side of the defining surface at a respective further point where it is reflected or refracted through a respective predetermined directed angle. The directed angle of a half-tangent to the defining surface which is co-planar with the two defining rays and lies at any intermediate point on the defining surface between the two respective further points is intermediate between the directed angles of two similarly orientated half-tangents which are co-planar with the two defining rays and lie at the respective further points.

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