Patent ID: 7791497

Claim:
A warning device characterised in that it is adapted to produce illumination having two or more constituent components, said warning device comprising at least a first component of light from a first light source for producing illumination along a first pathway or in a first direction, a second component of light from a second light source for producing illumination at least initially along a second pathway or in a second direction, said first pathway or direction being different to the initial second pathway or direction, and a light direction changing element for changing the pathway or direction of one of the first or second pathways or directions of illumination to be the same as or similar to the other pathway or direction wherein at least one, and preferably at least two, of the light sources move substantially in accordance with or in unison with movement of the light direction changing element so that illumination comprising the two components of light is emitted from the device in which the first component of light is derived from the first light source and the second component of light is derived from the second light source.