Patent ID: 8147094
Filing Date: 2012-04-03
Classification: F21S,F21V,Y10S

Abstract:
1. An illumination system, comprising: a first illumination module comprising a plurality of first illumination units corresponding to an axis, wherein each first illumination unit comprises at least one first light source, at least one first reflector and at least one third reflector, arranged such that light beams from the first light source are reflected by the first reflector and/or the third reflector to generate a first projection pattern, and the light beams are concentrated on a first focus located on the axis, the first projection pattern is changed by changing the distance from the first reflector to the first light source by movement of the first reflector, and the position of the first focus is changed by changing the angle between the first illumination unit and the axis; a second illumination module comprising a plurality of second illumination units corresponding to the axis, wherein each second illumination unit comprises at least one second light source, at least one second reflector and at least one fourth reflector, and wherein light beams from the second light source are reflected by the second reflector and/or the fourth reflector to generate a second projection pattern combined with the first projection pattern to form a projection pattern, the light beams are concentrated on a second focus located on the axis, the position of the second focus is changed by changing the angle between the second illumination unit and the axis; and a projection adjusting module joined to the first illumination units and changing the distance from the first reflector to the first light source to change the projection pattern, wherein the projection adjusting module comprises: