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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 10-13 |
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jorag M, kavosh Tehrani M, Mousavi Fard S S. Design reflection and transmission input couplers in holographic waveguide display. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :10-13
URL: http://opsi.ir/article-1-2769-en.html
URL: http://opsi.ir/article-1-2769-en.html
Abstract: (493 Views)
Waveguides have become very popular in the field of near-eye displays due to their thickness and light weight. However, the stray lights generated in the waveguide greatly reduce the quality and diffraction efficiency of the image. In this paper, using two models designed for reflection and transmission holographic input couplers with finite element method in Comsol software, the optimal parameters for input couplers to increase the diffraction efficiency and minimize the stray lights in them are obtained. Reflective coupler reached 100% diffraction efficiency and the stray lights were completely eliminated, while in the transmition couplers the diffraction efficiency reached 95% at best and the stray lights were not completely eliminated.
Type of Study: Experimental |
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