Optical System For Converting A Primary Intensity Distribution Into A Predefined Intensity Distribution That Is Dependent On A Solid Angle
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United States of America Patent
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Issued Date -
Mar 27, 2008
app pub date -
Jul 15, 2005
filing date -
Jul 19, 2004
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Abandoned
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Abstract
It is the object of an optical system and a method for converting a primary intensity distribution into a predetermined intensity distribution dependent on a solid angle to reduce the disruptive influence of the zeroth diffraction order beyond the limits imposed by the manufacturing accuracy in the manufacture of the diffractive structures, also with increasingly higher apertures, while making use of the advantages of diffractive structures in providing variously shaped intensity distributions. In a first plane, in which first micro-optic homogenization structures generate a finely structured amplitude distribution and phase distribution from the primary intensity distribution, there are arranged second diffractive micro-optic homogenization structures which are adapted to the finely structured amplitude distribution and phase distribution and which generate the predetermined solid angle-dependent intensity distribution in a second plane from the finely structured amplitude distribution and phase distribution.
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