| 摘要 |
<p>A device with at least one light source, comprising several individual light sources ( 3, 3' ) and an optical arrangement. At least two individual light sources ( 3, 3' ) comprise a light-emitting surface with different, long axes perpendicular to each other. At least two individual light sources ( 3, 3' ) form at least one individual light source grouping ( 4, 4' ), which is arranged coaxially to the optical axis ( 5 ) of an astigmatic optical element ( 7 ). Said astigmatic optical element ( 7 ) is impinged upon by the emitted bundles ( 2 ) from the individual light sources. One axis of the emission surface of an individual light source ( 3 ) lies on the meridional plane of the astigmatic optical element ( 7 ). Said plane is defined through the mid-point of the emission surface. The other axis of the emission surface lies on the corresponding sagittal plane. The astigmatic optical element ( 7 ) has different imaging characteristics on the respective meridional and saggital planes for each light source ( 3 ), whereby each emitted bundle ( 2 ), in the light path to the astigmatic optical element ( 7 ), comprises a cross-sectional area with essentially equally long axes, on at least one compensation plane ( 13 ) which is perpendicular to the optical axis of the astigmatic optical element ( 7 ). All emitted bundles ( 2 ) are guided by bundle-guiding components ( 7, 11, 12, 7' ) on to a working plane ( 13 ), which is either formed by the compensation plane, or an optical plane which is common to all beams. A working beam of high intensity is thus generated by superimposition of the emitted bundles.</p> |
