Lighting device for a motor vehicle headlamp, the lighting device comprising at least one light source and a projection lens system, which projection lens system is set up to project the light of the at least one light source in front of the lighting device in the form of a light distribution in a main radiation direction, wherein the projection lens system has a common focal point, wherein the at least one light source is arranged in the common focal point, and wherein the projection lens system consists of the following: - a first lens having a first focal point, which first lens is aspherical and made of precision glass by means of precision glass molding and is arranged immediately after the at least one light source in the beam path of the at least one light source when viewed in the main radiation direction, wherein the first lens has a convex decoupling surface and a concave coupling surface for increasing the light coupling, and wherein the first lens is arranged to collimate the light of the at least one light source in the direction of the main radiation direction, wherein the first lens has a refractive index of n ≥ 1.8, - a second lens with a second focal point, which second lens is arranged immediately after the first lens as seen in the main direction of radiation and is designed as a spherical biconvex converging lens, the second lens being produced from glass by means of glass grinding and having an Abbe number greater than 60, - a third lens with a third focal point, which third lens is arranged immediately after the second lens as seen in the main direction of radiation and is designed as an aspherical, biconcave lens made of plastic, the third lens having an Abbe number of less than 25, - a fourth lens with a fourth focal point, which fourth lens is arranged immediately after the third lens as seen in the main direction of radiation and is designed as an aspherical, biconvex converging lens made of plastic, and - a diaphragm disposed between the third and fourth lenses (300, 400), the diaphragm being arranged to partially shield light emitted from the third lens towards the fourth lens so that the diaphragm cooperates in forming the light distribution in front of the illumination device, wherein the second and third lenses (200, 300) are arranged to cooperate as an achromatic lens pair to avoid chromatic aberration, and wherein the third and fourth lenses (300, 400) have substantially the same coefficient of thermal expansion, the third and fourth lenses (300, 400) being arranged to cooperate as an athermal lens pair for avoiding a shift of the common focal point at different temperatures. - a first lens having a first focal point, which first lens is aspherical and made of precision glass by means of precision glass molding and is arranged immediately after the at least one light source in the beam path of the at least one light source when viewed in the main radiation direction, wherein the first lens has a convex decoupling surface and a concave coupling surface for increasing the light coupling, and wherein the first lens is arranged to collimate the light of the at least one light source in the direction of the main radiation direction, wherein the first lens has a refractive index of n ≥ 1.8, - a second lens with a second focal point, which second lens is arranged immediately after the first lens as seen in the main direction of radiation and is designed as a spherical biconvex converging lens, the second lens being produced from glass by means of glass grinding and having an Abbe number greater than 60, - a third lens with a third focal point, which third lens is arranged immediately after the second lens as seen in the main direction of radiation and is designed as an aspherical, biconcave lens made of plastic, the third lens having an Abbe number of less than 25, - a fourth lens with a fourth focal point, which fourth lens is arranged immediately after the third lens as seen in the main direction of radiation and is designed as an aspherical, biconvex converging lens made of plastic, and - a diaphragm disposed between the third and fourth lenses (300, 400), the diaphragm being arranged to partially shield light emitted from the third lens towards the fourth lens so that the diaphragm cooperates in forming the light distribution in front of the illumination device, wherein the second and third lenses (200, 300) are arranged to cooperate as an achromatic lens pair to avoid chromatic aberration, and wherein the third and fourth lenses (300, 400) have substantially the same coefficient of thermal expansion, the third and fourth lenses (300, 400) being arranged to cooperate as an athermal lens pair for avoiding a shift of the common focal point at different temperatures.