Electronic device

An electronic device is provided. The electronic device includes a light source and a detector. The light source includes: an electromagnetic spectral emission source configured to output an electromagnetic spectral emissive; a polarizing optical element configured to polarize the electromagnetic spectral emissions; a collimating optical element configured to focus or collimate the electromagnetic spectral emissions into a narrow beam or a compact beam to reduce diffusion; and a diffractive optical element configured to separate the electromagnetic spectral emissions into a predetermined arrangement. 提供一种电子装置。所述电子装置包括光源和检测器。光源包括：电磁光谱发射源，被配置为输出电磁光谱发射物；偏振光学元件，被配置为使电磁光谱发射物偏振；准直光学元件，被配置为将电磁光谱发射物聚焦或准直为窄光束或紧密的光束以减少漫射；以及衍射光学元件，被配置为将电磁光谱发射物分离为预定布置。