A rod-equipped light guide assembly comprising a rod and a light guide assembly, wherein the light guide assembly comprises: - a first transparent monolithic optical part having a refractive index, and - a second transparent monolithic optical part having the same refractive index as the first transparent monolithic optical part, wherein - the first transparent monolithic optical part has a first surface having two prism arrays (403, 405) separated by a flat surface, the flat surface has a partially reflective coating thereon, and the first transparent monolithic optical part further has an opposite second surface that is flat. - each prism array of the first surface of the first transparent monolithic optical part has at least two prisms, each prism being composed of a first surface and a second surface which are oblique with respect to each other and with respect to said opposite second surface of the first transparent monolithic optical part, the first surfaces of the prism arrays have a partially reflective coating thereon and the second surfaces of the prism arrays have no reflective coating thereon, - the second transparent monolithic optical part has a first surface having a geometrically complementary shape with respect to the shape of the first surface of the first transparent monolithic optical part, and the second transparent monolithic optical part of the light guide assembly further has an opposite second surface that is flat, - the first and second transparent monolithic optical parts are assembled together using a first optically transparent adhesive material, such that the second surfaces of the first and second transparent monolithic optical parts of the light guide assembly are parallel to each other, the first optically transparent adhesive material having the same refractive index as the first and second transparent monolithic optical parts, and wherein the rod is transparent and has a partially reflective gradient coating on one of its surfaces via which the rod is assembled with the light guide assembly using a second optically transparent adhesive material. - a first transparent monolithic optical part having a refractive index, and - a second transparent monolithic optical part having the same refractive index as the first transparent monolithic optical part, wherein - the first transparent monolithic optical part has a first surface having two prism arrays (403, 405) separated by a flat surface, the flat surface has a partially reflective coating thereon, and the first transparent monolithic optical part further has an opposite second surface that is flat. - each prism array of the first surface of the first transparent monolithic optical part has at least two prisms, each prism being composed of a first surface and a second surface which are oblique with respect to each other and with respect to said opposite second surface of the first transparent monolithic optical part, the first surfaces of the prism arrays have a partially reflective coating thereon and the second surfaces of the prism arrays have no reflective coating thereon, - the second transparent monolithic optical part has a first surface having a geometrically complementary shape with respect to the shape of the first surface of the first transparent monolithic optical part, and the second transparent monolithic optical part of the light guide assembly further has an opposite second surface that is flat, - the first and second transparent monolithic optical parts are assembled together using a first optically transparent adhesive material, such that the second surfaces of the first and second transparent monolithic optical parts of the light guide assembly are parallel to each other, the first optically transparent adhesive material having the same refractive index as the first and second transparent monolithic optical parts, and wherein the rod is transparent and has a partially reflective gradient coating on one of its surfaces via which the rod is assembled with the light guide assembly using a second optically transparent adhesive material.