Patent ID: 9358734
Filing Date: 2016-06-07
CPC Classification: B29C,B29D,B29L,F21S

Claim Text:
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.