DEVICE FOR GENERATING TEMPORALLY OFFSET , SPATIALLY MODULATED ILLUMINATION REGIONS

Abstract:
A device is provided for generating temporally offset , spa tially modulated illumination regions (22 , 22 ') having peri odic modulation patterns that are phase - shifted with respect to one another . The device has two pulsed laser sources (121 , 122) that are triggerable in a manner temporally offset with respect to one another and that generate two laser beams pulsed in a temporally offset manner . Intensity modulators (16) are provided for spatially periodic intensity modulation of the laser beams perpendicular to the direction of propa gation thereof . A beam superimposing device (126) com bines the beam paths of the laser beams in a common beam path section and a beam shaper (20 , 20 ') shapes the illumi nation region shaping. The common beam path section is configured so that the laser beams combined by the beam superimposing device (126) are polarized differently and the intensity modulators are upstream of an optically anisotropic beam splitter (18).