Patent ID: 6639728
Filing Date: 2003-10-28
Classification: B23K,G02B

Abstract:
An optical system for re-shaping and spatially homogenizing light beams with variable cross-section output, comprising two sets of optical elements, said sets operating on mutually orthogonal transverse directions, each set being formed by three optical components in which the first component is first met by the light beam and is a Divider component, the second component is met by the light beam after exiting from said Divider component and is a Condenser component having a focal plane and the third component is met by the light beam after exiting from said Condenser component and is a Zoom component; wherein said Divider component is formed by a number n of cylindrical lenses, where n is greater than 1, each cylindrical lens having a size si (with i=1, 2, . . . n), whose total dimension is not greater than the respective dimension of the light beam and whose middle point lies upon the optical axis of the light beam and, in the case said cylindrical lenses have different sizes si (with i=1, 2, . . . n) the size/focal length ration si/fi must be constant for every i=1, 2, . . . n; the second component is formed by a cylindrical lens located before or after the focal plane of the Condenser component.