Patent ID: 6792024
Filing Date: 2004-09-14
Classification: G01S,G02B,G02F

Abstract:
A laser arrangement, comprising means for steering a laser beam across a reflecting body, which in turn is designed to reflect the laser beam so that it is then aimed in a surrounding space within an area that, from the reflecting body and in an instrument plane lying perpendicular to an axis of symmetry of the reflecting body and intersecting a radius at which the laser beam hits an envelope surface of the reflecting body, covers at least a part of a circular revolution, as well as an angle interval of about Â±60Â° to the instrument plane, wherein the steering means is arranged in a path of the laser beam between the laser and the reflecting body, and is arranged to steer the laser beam, within the area, in accordance with a pre-selected direction of a reflected beam, whereby the steering means comprises a spatial light modulator, having an input for setting a phase-shift pattern, which determines a modulated angle from the modulator and wherein the steering means includes a calculating unit operatively connected to a light modulator, and arranged to calculate the setting of the light modulator's phase-shift pattern from the pre-selected direction.