Solution 1 consists of a photogoniometer which is controlled by a PC and driven by an electrical motor. The lamp (emitter) should be fixed on it. Then the goniometer rotates in the horizontal and the vertical slice to position the lamp in the defined positions so that the detector which is adjusted directly on the lamp can measure the illuminance values depending on the angle. The measurement software calculates the illuminance values into luminous intensity values. A frame with a textile cover shall cover the measurement light proof.