H - Electricity – 01 – S
Patent
H - Electricity
01
S
H01S 4/00 (2006.01) F41B 15/00 (2006.01) G02B 17/08 (2006.01)
Patent
CA 2171786
A method and apparatus for directing electromagnetic energy may be used as a di-rected 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 electromag- netic energy from a source made up of an area or volume as opposed to a point. Electro- magnetic 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. A further ray from said source and of said defining wavelength passing through said point of intersection and also any one of such intermediate points is reflected or refracted by the defining surface through a directed angle intermediate between the two respective predetermined directed angles or approximately equal to one of them. The accuracy with which the electromagnetic energy is directed is improved by the provision of a plurality of stages wherein each stage includes a defining surface together with a defined surface and the electromagnetic energy output from a stage forms the input to a further stage.
Anderson John E.
Fetherstonhaugh & Co.
LandOfFree
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