Near-infrared spatiotemporal color vision in humans enabled by upconversion contact lensesBased on the principle of refractive index matching, highly transparent upconversion contact lenses (UCLs) with a high concentration of upconversion nanoparticles (UCNPs) were developed. These lenses efficiently convert multispectral near-infrared (NIR) light into the three primary visible colors, enabling humans to acquire wearable NIR color vision.Based on the principle of refractive index matching, highly transparent upconversion contact lenses (UCLs) with a high concentration of upconversion nanoparticles (UCNPs) were developed. These lenses efficiently convert multispectral near-infrared (NIR) light into the three primary visible colors, enabling humans to acquire wearable NIR color vision.Yuqian Ma, Yunuo Chen, Sheng Wang, Zi-Han Chen, Yuanwei Zhang, Ling Huang, Xinxin Zhang, Fei Yin, Yunxuan Wang, Mingzhu Yang, Zhanjun Li, Kai Huang, Xin Fang, Zishuo Li, Minghong Wang, Wenhui Liu, Jia-Nan Li, Longfei Li, Hang Zhao, Min Wei, Yiming Shi, Rong Liu, Mei Zhang, Jutao Chen, Jiawei Shen, Jianjun Meng, Yupeng Yang, Fan Zhang, Xinglong Gong, Gang Han, Tian Xuehttps://www.cell.com/cell/fulltext/S0092-8674(25)00454-4?rss=yeshttp://www.cell.com/cell/inpress.rssCellCell RSS feed.Wireless News CampaignMay 23, 2025

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