2results about How to "Improve refraction effect" patented technology

The utility model relates to the technical field of rainfall sensing, and provides a light ray rainfall sensor, which comprises a silica gel pad, a lens, an upper shell, a circuit board and a lower shell, an infrared transmitter and an infrared receiver are arranged on the circuit board, the lens is arranged in the upper shell to realize light conduction between the infrared transmitter and the silica gel pad and between the silica gel pad and the infrared receiver, and the infrared receiver is arranged in the lower shell. The light guide side of the lens is provided with a light condensation part and a first reflection part, the light condensation part is arranged on one side, near the infrared receiver, of the infrared transmitter, the light condensation part is in a convex mirror shape, and the convex surface of the light condensation part faces the infrared transmitter; the first reflecting part is arranged on the side, far away from the infrared receiver, of the infrared transmitter, the first reflecting part is in an arc shape, an arc opening of the first reflecting part faces the infrared transmitter, the inner arc face of the first reflecting part is a refraction face, and the outer arc face of the first reflecting part is a reflecting face. According to the lens, the first reflecting part is arranged on the light guide side, the inner arc surface of the first reflecting part is the refracting surface, and the outer arc surface of the first reflecting part is the reflecting surface, so that the alignment requirement of the infrared transmitter and the light condensing part is reduced.

This application relates to the field of colorants, and in particular to a high thermal conductivity organosilicon colorant and its preparation method. In this application, titanium dioxide is attached to the surface of long thermally conductive particles such as whiskers using a titanium source to form a titanium dioxide-long thermally conductive particle composite system, which is then dispersed in a polymer carrier. The attached titanium dioxide enhances the coloring performance of the long thermally conductive particles. Compared with directly mixing titanium dioxide and whiskers, this method provides better coloring and thermal conductivity at the same mass.