Patent ID: 7134769

Claim:
A lantern ( 10 ) preferably for use on board ships, in particular on leisure craft, with the lantern having a housing, at least one illuminant and a light-permeable cover ( 14 ), the lantern comprising: a) at least one LED ( 22 ) provided as the at least one illuminant; and b) a beam baffler assigned to the at least one illuminiant, the beam baffler having an essentially partially cylindrical, prism-like and solid lens and a main axis, wherein i) the main axis of the beam baffler, based on the emitted light, is intersected by an axis of curvature perpendicular to main axis; ii) an outer surface of the beam baffler extends in a partially cylindrical manner about the axis of curvature; iii) the axis of curvature is at the same time the axis of curvature for a partially cylindrical inner surface of the beam baffler; iv) the beam baffler is solid between the outer surface and the inner surface; v) when light is emitted in as horizontal a plane as possible, the axis of curvature extends essentially in the vertical direction; vi) the outer surface and the inner surface extend to a wall that runs essentially transverse to the main axis; vii) provided in the wall running transverse to the main axis is a recess, into which the illuminant at least partially enters; viii) the recess is limited by the inner surface, a flat top wall transverse to the inner surface and a flat bottom wall transverse to the inner surface; ix) in the direction of the axis of curvature, a top side lies outside of the top wall and a bottom side lies below the bottom wall of the beam baffler: x) the top side and the bottom side each extend between the outer surface and the wall running transverse to the main axis; and xi) the top side and the bottom side each are configured essentially in the shape of a reference cone so that together the top side and the bottom side have an essentially V-shaped cross-section, being spaced far apart from each other in the region of the outer surface and at a small distance from each other in the vicinity of the illuminant.