Patent ID: 7322727

Claim:
A radiation device comprising; a source ( 12 ) of radiation and a reflector ( 10 ) having a plurality of reflecting parts, the reflecting parts having a common axis (X) of symmetry and each providing reflected light substantially in the direction of the axis of symmetry away from points of reflection; characterized in that any point P on any part of the multi-part reflector has a separation dimension Y, orthogonal to axis X, that may be expressed as a function of an angle β, such that Y=f (β), where β is an angle with apex at the source of illumination, a first (base) leg along the axis of symmetry opposite the direction of reflected illumination, and a second leg from the apex to the point P, such that the function for Y in terms of β is discontinuous for at least one region of β, and decreases in at least one region of β with increase in β.