DE 10 2007 037 204 A1 discloses a process for manufacturing an optical lens element, in particular for illumination purposes, particularly for manufacturing a headlight lens for a vehicle headlight, in particular for a motor vehicle headlight, wherein a blank is molded from transparent, particularly thermoplastic, in particular essentially liquid plastic material, in particular by means of an injection pressing process in an injection pressing mold, and wherein the blank is subsequently pressed, press-molded by means of a final shape/contour mold to form the lens element.
DE 41 28 915 A1 discloses an apparatus for casting a plastic lens, wherein a first casting mold having a concave optical surface, and a second casting mold having a convex optical surface are arranged such that the optical surfaces oppose each other, and wherein an adhesive tape is placed over the first as well as also over the second casting mold in order to configure a cavity between the casting molds. Plastic material is injected into this cavity and is finally hardened.
US 2006/0284324 A1 discloses a method for producing an optical structural component wherein the structural component is pressed after thermal softening.
U.S. Pat. No. 3,211,811 discloses an apparatus for producing a plastic-material lens, wherein a flexible molding element is arranged in a mold cavity, which element divides the mold cavity into two partial mold cavities, wherein the flexible mold element is configured such that it transmits a hydraulic force between the partial mold cavities.
DE 699 23 847 T2 discloses a process for manufacturing an optical mold body from thermoplastic resin by injection-press-molding, wherein the volume of a mold cavity expands more strongly than the volume of the optical mold body in question, and molten thermoplastic resin is injected into the mold cavity through an injection molding passage.
According to DE 699 23 847 T2, U.S. Pat. No. 4,540,534, EP 0 640 460 and JP 9-057794 disclose a method for manufacturing an optical mold body from thermoplastic resin by injection-press-molding.
DE 102 20 671 A1 discloses a plastic lens consisting of a collective lens of plastic material having a high Abbé number, and a dispersion lens connected therewith integrally and in positive fit, of plastic material having, when compared with the plastic material of the collective lens, a lower Abbé number, wherein the thermal expansion coefficients of the respective plastic materials are essentially the same.
Headlight lenses are known e.g. from WO 02/31543 A1, U.S. Pat. No. 6,992,804 B2, WO 03/074251 A1 and DE 100 52 653 A1. Further vehicle headlights are known e.g. from DE 100 33 766 A1, EP 0 272 646 A1, DE 101 18 687 A1 and DE 198 29 586 A1.
It is an object of the invention to reduce the costs for manufacturing of headlight lenses for vehicle headlights. It is, for example, an object of the invention to specify an improved vehicle headlight including a plastic lens and/or a motor vehicle with a correspondingly improved vehicle headlight.
USPTO Backgrounds
USPTO Backgrounds