Method for manufacturing a headlight lens for a vehicle headlight

摘要

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.

主权项

1. A method for manufacturing a collective headlight lens for a vehicle headlight for imaging a light-dark-borderline on a roadway, the method comprising:
providing an upper mold comprising a first partial mold and a second partial mold, which first partial mold is surrounded by the second partial mold; providing a lower mold; supplying liquid transparent plastic material to the lower mold; subsequently pressing the plastic material between the lower mold and the upper mold by moving together the lower mold and the upper mold; subsequently moving apart the lower mold and the upper mold; cooling the upper surface of the pressed plastic material without cooling of the lower surfaces of the pressed plastic material; subsequently supplying more of the liquid transparent plastic material is onto the pressed plastic material; and subsequently press-molding the plastic material to form the collective headlight lens for imaging a light-dark-borderline on a roadway, the headlight lens consisting of only one of the group consisting of one type of plastic material and of a homogeneous mixture of individual plastic materials.