Proposed an overall design project of visible light communication system based on white LED array source, had developed a prototype that can run actually.

本文分析对比了国内外可见光通信技术的研究现状，对基于白光LED阵列光源通信系统的若干关键技术进行了讨论。

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It USES a laser diode as light source and a linear photodiode array to record the light-scattering band, which correlated to the surface roughness.

它利用半导体激光器为光源，光电二极管阵列接收与表面粗糙度具有对应关系的散射光带。

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LAPS array usually USES LED array as stimulative light source. LED has a large divergence Angle, so it is difficult to avoid some light irradiating on the non-sensitive area between sensitive areas.

由于阵列化laps一般采用LED阵列作为激励光源，而LED的发散角较大，所以在实际应用中难以避免有部分光线会照射在各敏感区域之间的非敏感区域上。

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