Abstract: The invention relates to a method for producing an optical lens element, more particularly for illumination purposes, more particularly for producing a headlamp lens for a vehicle headlamp, more particularly for a motor vehicle headlamp, according to which method liquid, transparent, more particularly amorphous, synthetic material is placed into a lower mold. The synthetic material is then pressed between the lower mold and an upper mold by putting the lower mold and the upper mold together. The lower mold and the upper mold are then separated. Further liquid, transparent, more particularly amorphous, synthetic material is then added to the pressed synthetic material and the synthetic material is then pressed, more particularly precision pressed, to form the lens element.

Abstract: The invention relates to a method for producing an optical lens element, more particularly for illumination purposes, more particularly for producing a headlamp lens for a vehicle headlamp, more particularly for a motor vehicle headlamp, according to which method liquid, transparent, more particularly amorphous, synthetic material is placed into a lower mould. The synthetic material is then pressed between the lower mould and an upper mould by putting the lower mould and the upper mould together. The lower mould and the upper mould are then separated. Further liquid, transparent, more particularly amorphous, synthetic material is then added to the pressed synthetic material and the synthetic material is then pressed, more particularly precision pressed, to form the lens element.

Abstract: The invention relates to a method for producing an optical glass part, particularly of a motor vehicle headlight lens or a lens-like free form for a motor vehicle headlight, wherein glass is melted, wherein a perform is formed from the glass, and wherein from the perform the motor vehicle headlight lens or the lens-like free form for a motor vehicle headlight is bright molded, particularly on both sides, wherein the glass is melted in a melting unit having a capacity of no more than 80 kg/h, wherein the glass comprised 0.2 to 2% weight Al2O3, 0 to 1% by weight Li2O, 0.3 to 1.5% by weight Sb2O3, 0.3 to 2% weight TiO2, and 0 to 1% by weight Er2O3.

Abstract: The invention relates to a headlight lens for a vehicle headlight comprising a light source, particularly for a motor vehicle headlight, wherein the headlight lens comprises a transparent lens body made of glass comprising a surface arranged to face the light source and a surface arranged to face away from the light source, and wherein the headlight lens comprises at least with respect to said surface arranged to face away from the light source a layer comprising an aluminum concentration which is higher than an aluminum concentration inside the lens body and/or a sodium concentration which is lower than a sodium concentration inside the lens body.

Abstract: The invention relates to a headlight lens for a vehicle headlight comprising a light source, particularly for a motor vehicle headlight, wherein the headlight lens comprises a transparent lens body made of glass comprising a surface arranged to face the light source and a surface arranged to face away from the light source, and wherein the headlight lens comprises at least with respect to said surface arranged to face away from the light source a layer comprising an aluminum concentration which is higher than an aluminum concentration inside the lens body and/or a sodium concentration which is lower than a sodium concentration inside the lens body.