Patent ID: 8851710

Claim:
A lighting device comprising a light source and units for changing the illumination region, which have first and second arrangements of transparent plate-type components having parallel elongate imaging elements which are arranged alongside one another and which have a surface deviating from a plane at least on one side, the parallel elongate imaging elements of the plate-type components of the first arrangement oriented in a first direction and the parallel elongate imaging elements of the plate-type components of the second arrangement oriented in a second direction perpendicular to said first direction, said first arrangement disposed adjacent said second arrangement, wherein the imaging properties of the component arrangements are changeable and the longitudinal axes of one component arrangement are oriented perpendicular to those of the other component arrangements, characterized in that the light source is a matrix-type arrangement of light emitting diodes, and in that each of the component arrangements has two plate-type components having parallel elongate imaging elements arranged alongside one another, and that the spacing between two plate-type components is changeable and the angle between two plate-type components is changeable for changing from one illumination region to another illumination region, wherein the spacing between the two plate-type components is changeable during normal operation of the lighting device.