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Ultra-compact HUD utilizing waveguide pupil expander with surface relief gratings in high refractive index materials
Ultra-compact HUD utilizing waveguide pupil expander with surface relief gratings in high refractive index materials
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机译：利用波导光瞳扩展器和高折射率材料中的表面凹凸光栅的超紧凑型HUD
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摘要
A head up display include an image source, and a waveguide. The waveguide has a first diffraction grating and a first end and a second diffraction grating at a second end. The waveguide is positioned as a combiner and allows viewing of an outside scene and information from the image source. The first and second diffraction gratings are surface relief gratings having a high index of modulation.
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