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Eyebox expansion and exit pupil replication in wearable heads-up display having integrated eye tracking and laser projection
Eyebox expansion and exit pupil replication in wearable heads-up display having integrated eye tracking and laser projection
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机译:具有集成式眼动跟踪和激光投影功能的可佩戴平视显示器中的眼罩扩展和瞳孔出射复制
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摘要
Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
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