Lens for an imaging optical unit for producing a virtual image of an initial image presented on an image generator, said lens comprising a main body and at least one complementary element (43, 49) attached to the main body, wherein - the main body, at least in a layer adjoining the at least one complementary element (43, 49), consists of a material with a first refractive index n 1 and the main body comprises an inner surface to face the eye, an outer surface to face away from the eye and a light guiding portion, which extends between an input coupling portion for input coupling an imaging beam path between the inner surface and the outer surface and an output coupling structure for coupling the imaging beam path out of the main body and in which light guiding portion the input coupled imaging beam path is guided to the output coupling structure by reflection at at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or of the outer surface, and - the at least one complementary element (43, 49) is attached to the inner surface or the outer surface of the main body, wherein said at least one complementary element overlaps with at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or the outer surface of the main body and wherein a viscous or solid intermediate layer (45, 51) is arranged between the at least one complementary element (43, 49) and the main body, at least in the overlap region of the at least one complementary element (43, 49) with the at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or of the outer surface of the main body, wherein the material of the viscous or solid intermediate layer (45, 51) has a second refractive index n 2, which satisfies the condition n 2 < n 2 sin(θ E), where θ E represents an angle of incidence of the light rays of the imaging beam path that emanate from the input coupling portion and that are incident on the reflection portion (R1, R2, R3, R4), said angle of incidence being chosen in such a way that at least 50% of the light rays of the imaging beam path have an angle of incidence θ > θ E, characterized in that the at least one complementary element (43, 49) has a third refractive index, which corresponds to the first refractive index. - the main body, at least in a layer adjoining the at least one complementary element (43, 49), consists of a material with a first refractive index n 1 and the main body comprises an inner surface to face the eye, an outer surface to face away from the eye and a light guiding portion, which extends between an input coupling portion for input coupling an imaging beam path between the inner surface and the outer surface and an output coupling structure for coupling the imaging beam path out of the main body and in which light guiding portion the input coupled imaging beam path is guided to the output coupling structure by reflection at at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or of the outer surface, and - the at least one complementary element (43, 49) is attached to the inner surface or the outer surface of the main body, wherein said at least one complementary element overlaps with at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or the outer surface of the main body and wherein a viscous or solid intermediate layer (45, 51) is arranged between the at least one complementary element (43, 49) and the main body, at least in the overlap region of the at least one complementary element (43, 49) with the at least one reflection portion (R1, R2, R3, R4) of the inner surface and/or of the outer surface of the main body, the material of the viscous or solid intermediate layer (45, 51) has a second refractive index n 2, which satisfies the condition n 2 < n 2 sin(θ E), where θ E represents an angle of incidence of the light rays of the imaging beam path that emanate from the input coupling portion and that are incident on the reflection portion (R1, R2, R3, R4), said angle of incidence being chosen in such a way that at least 50% of the light rays of the imaging beam path have an angle of incidence θ > θ E, characterized in that the at least one complementary element (43, 49) has a third refractive index, which corresponds to the first refractive index.