Wave optical analysis of light-emitting diode beam shaping using microlens arrays
作者： Alexander Bu¨ ttner , Uwe D Zeitner
DOI: 10.1117/1.1499975
关键词:
摘要: We investigate the use of optical systems consisting either one or two refractive microlens arrays, a collimating and Fourier trans- forming lens for LED beam homogenization. Due to small lenslet diameters, diffraction can lead significant deviations from desired homogene intensity distribution. Therefore, we analyze setups applying scalar theory explain occurring effects using numerical calculations. Our theoretical calculations are supported by ex-
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