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公开(公告)号:US10901239B2
公开(公告)日:2021-01-26
申请号:US15920414
申请日:2018-03-13
申请人: PILESTONE, INC.
发明人: Tiangang Zhuang , Shangzi Zou , Ximin Yin
摘要: The present invention relates to optical devices for use by color blindness viewers and more particularly, to eyeglasses which improve the ability of a color blindness viewer to discriminate between different colored objects.