Microstructure raindrop lens for increasing sensing area

Abstract

This utility model relates to a microstructured rain gauge lens for improving the sensing area. It is characterized by comprising two lens groups mounted on the inner side of a glass surface. Each lens group includes a transmitting lens and a receiving lens. The receiving lenses in the two lens groups are integrally connected to form a receiving area. Each receiving lens is composed of several receiving microstructure units to reduce obstruction between the two receiving lenses in the receiving area. Furthermore, the receiving microstructure units of the receiving lenses in the two lens groups are staggered within the receiving area to form an interleaved area, thereby reducing the ineffective sensing area. This utility model has the following advantages and effects: by thinning the lens as a whole and regionalizing or gridding the overlapping portions of the receiving lenses in the two lens groups, each region or grid simultaneously contains the receiving lenses of both lens groups, effectively improving the coverage of the sensing optical path and thus effectively increasing the overall sensing area.

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