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US 12,319,605 B2Granted
Method for producing a headlight lens for a vehicle headlight
AssigneeDocter Optics SE
InventorsAlexander Kuppe, Thomas Walther, Hagen Goldammer
Life of this patent
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Abstract
The present disclosure provides a suitable method for producing a headlight lens for a vehicle headlight, for example for a motor-vehicle headlight, wherein the headlight lens comprises an integral body made of glass, wherein the integral body comprises at least one light tunnel and one light-passage section having at least one optically active light exit surface, wherein the light tunnel comprises at least one light entry surface and, with a bend, transitions into the light-passage section in order to image the bend as a bright-dark-boundary by means of light directed into the light entry surface.
Claims15
A method of producing a headlight lens for a vehicle headlight, the method comprising:
- providing a first partial mold;
- providing a second partial mold;
- providing at least a third partial mold;
- providing a ram;
- press-molding a heated blank of glass between the first partial mold, the second partial mold, and the third partial mold to form a headlight lens having an integral body made of glass, the integral body comprising at least one light tunnel and a light-passage section having at least one optically active light exit surface, wherein the light tunnel comprises at least one light entry surface and, with a bend, transitions into the light-passage section configured to image the bend as a bright-dark-boundary by means of light directed into the light entry surface, wherein the press-molding comprises:
- molding the light tunnel, the bend, and at least a portion of the light-passage section by means of the second partial mold;
- molding at least a portion of the light-passage section by means of the first partial mold and the third partial mold;
- moving the second partial mold and the third partial mold towards each other;
- and
- during press-molding, pressing the ram against the second partial mold and the third partial mold, the direction of pressing being orthogonal to the direction of movement of the second partial mold and the third partial mold.
7 more elements
A method of producing a headlight lens for a vehicle headlight, the method comprising:
- providing a first partial mold;
- providing a second partial mold;
- providing at least a third partial mold;
- press-molding a heated blank of glass between the first partial mold, the second partial mold, and the third partial mold to form a headlight lens having an integral body made of glass, the integral body comprising at least one light tunnel and a light-passage section having at least one optically active light exit surface, wherein the light tunnel comprises at least one light entry surface and, with a bend, transitions into the light-passage section configured to image the bend as a bright-dark-boundary by means of light directed into the light entry surface, wherein the press-molding comprises:
- molding the light tunnel, the bend, and at least a portion of the light-passage section by means of the second partial mold;
- molding at least a portion of the light-passage section by means of the first partial mold and the third partial mold;
- moving the second partial mold and the third partial mold towards each other;
- moving the first partial mold orthogonal to the direction of movement of the second partial mold;
- and
- moving the first partial mold orthogonal to the direction of movement of the third partial mold.
7 more elements
A method of producing a headlight lens for a vehicle headlight, the method comprising:
- providing a first partial mold;
- providing a second partial mold;
- providing at least a third partial mold;
- providing a ram;
- providing an actuator, a mold and the actuator being connected by means of a first movable guide rod and at least a second movable guide rod, wherein the first movable guide rod is guided in a recess in a fixed guide element and the second movable guide rod is guided in a recess in the fixed guide element, the mold being selected from the group consisting of the first partial mold;
- the second partial mold;
- and the third partial mold;
- and
- press-molding the heated blank of glass between the first partial mold, the second partial mold, the third partial mold to form a headlight lens having an integral body made of glass, the integral body comprising at least one light tunnel and a light-passage section having at least one optically active light exit surface, wherein the light tunnel comprises at least one light entry surface and, with a bend, transitions into the light-passage section configured to image the bend as a bright-dark-boundary by means of light directed into the light entry surface;
- and wherein the press-molding comprises:
- molding the light tunnel, the bend, and a portion of the light-passage section by means of the second partial mold;
- and
- molding at least a portion of the light-passage section by means of the first partial mold and the third partial mold.
10 more elements
Dependencies are inferred from the claim text.