LANDING AND SEARCH LAMP Russian patent published in 2023 - IPC F21S41/141 B60Q1/06 

FIELD: lighting engineering.

SUBSTANCE: invention relates to electrical equipment of aircraft and in particular to the landing and search lamp of a helicopter. The claimed landing and search lamp comprises a housing with a radiator cover with dispersion ribs and an optical system consisting of a reflector with a central axis, a base and LEDs of different radiation ranges. In this case, the reflector is made of at least two steps, the reflecting surface of each of which is a closed contour formed by sections of the inner surface of at least four revolving paraboloids, the axes of which are parallel and equidistant from the central axis of the reflector, each previous stage of the reflector is equipped with a flat ring, connected to the next stage, the flat ring of the last stage is a flanging of the reflector and is connected to the radiator cap. The base is installed along the central axis of the reflector, is made with at least four faces and comprises one or two LEDs on each face in each stage of the reflector, the number of base faces corresponds to the number of sections of the inner surface of the reflector, and the LEDs of the previous stage of the reflector are separated from the LEDs of the next stage by a screen.

EFFECT: increased time of trouble-free operation while increasing the efficiency of the luminous flux and reducing weight.

7 cl, 4 dwg