Diffractive beam homogenizer having free-form fringes
作者： Michael R. Feldman , Alan D. Kathman
DOI:
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摘要: A beam homogenizer that minimizes undesired intensity variations at the output plane caused by sharp breaks between facets in previous embodiments. The includes a hologram made up of irregularly patterned diffractive fringes. An input illuminates least part hologram. transmits portion onto an plane. In doing so, energy is spatially redistributed into homogenized having preselected spatial distribution Thus, illuminated has shape predetermined designer homogenizer.
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