The invention discloses a mechanical structure of a novel sensor and the novel sensor. The sensor can be used for pose control of an aircraft and generally belongs to a solar sensor. Specifically, thesensor is a novel imaging-type polarization light navigation sensor. The sensor comprises a filtering sheet, a cone mirror and a CMOS sensor. The refractive index of materials of the cone mirror andthe included angle between the cone face and the bottom are obtained through strict design and calculation. The CMOS sensor with quite high resolution is used for receiving polarization light penetrating through the cone mirror. The sensor is simple in structure, high in timeliness, and high in measurement precision and has favorable application prospects in polarized light azimuth angle measurement and polarized light navigation.