Apparatus for four side transverse irradiation of a region
AssigneeInternational Business Machines Corporation
InventorDonald S. Bethune
Life of this patent
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Abstract
A right angle corner reflector is used to reflect different parts of a single incident collimated radiation beam such that a cylindrical region is equally irradiated transversely from four directions. The cylindrical region is positioned such that rays which strike the intersection of the corner reflector surfaces are tangent to the side of the cylindrical region. The cylindrical region is spaced from the corner reflector such that one quarter of the radiation incident upon the cylindrical region strikes the region directly, one quarter is first reflected from one of the corner reflector surfaces, one quarter is first reflected from the other corner reflector surface, and one quarter is reflected from first one and then the other corner reflector surface before striking the cylindrical region.
Claims9
Apparatus for transversely irradiating a region equally from four directions using a single incident beam of substantially collimated radiation, comprising:
- perpendicular reflective planes having a common edge and defining a corner region therebetween, said corner region being the region defined by all straight lines extending from one of said reflective planes to the other;
- and
- means defining an irradiated region entirely within said corner region, said irradiated region being suitably positioned within said corner region such that said irradiated region does not intercept any ray of incident radiation from striking said common edge, said irradiated region being directly irradiated from a first direction by incident radiation, said irradiated region also being simultaneously indirectly irradiated from a second direction by incident radiation reflected from one of said planes, said irradiated region also being simultaneously indirectly irradiated from a third direction opposite said second direction by incident radiation reflected from the other one of said planes, and said irradiated region being also simultaneously indirectly irradiated from a fourth direction opposite said first direction by incident radiation reflected from both of said planes.
Dependencies are inferred from the claim text.