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Uniform illumination by diffractive shaping of independent light beams

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EN
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EN
This article presents a new optical set-up for illumination of a common area with a few independent light sources. The main aim is to create a uniform light distribution of a constant shape even if one of the light sources will stop working. In such a case, the shape of the light distribution should remain unchanged, however, the total light intensity will be lower. The novelty of the proposed solution is based on the usage of a small number of the independent light sources in opposite to a well known LED arrays approach. The beam shaping is made using Dammann gratings and specially designed blazed phase diffractive gratings. The article contains the theoretical analysis and the computer simulation verified by the experiment.
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Bibliografia
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  • [17] I. Banyasz: Refractive index modulation vs. before-bleach optical density modulation characteristics of silver halide phase holograms. Opt. Commun. 244, 79-91, 2005.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAD-0022-0010
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