Patent ID: 6421178
Filing Date: 2002-07-16
Classification: G02B,Y10S

Abstract:
A device for optical beam transformation of one or more ray bundles having an oblong beam cross-section in the x-y-plane using optical elements that have optically active interfaces arranged along the beam path, comprising:at least one optical element designed as a continuous angle transformation element having an optical interface that, along the x-axis, has a continuously varying inclination in the beam direction relative to the z-axis direction, and causes a continuously varying inclination of the beam direction with respect to the y-axis; at least one optical element including a first angle transformation element with one or more optical interfaces, which, along the x-axis, has a continuously varying inclination in beam direction relative to the y-axis; a Fourier transform array having a back focal plane; and a second angle transformation element with one or more optically active interfaces, which, along the y-axis, has a continuously varying inclination in beam direction relative to the x-axis; whereby said first angle transformation element and second angle transformation element are each arranged and positioned in one of a front focal plane and said back focal plane of said Fourier transform array.