Method for producing an optical lens element, particularly a headlight lens for a motor vehicle headlight

摘要

The invention relates to a method for producing an optical lens element (2), particularly for illumination purposes, particularly for producing a headlight lens (2) for a vehicle headlight, particularly for a motor vehicle headlight (1), wherein a blank (136) made of a transparent plastic is shaped in an injection molding tool (131, 132) by means of an injection molding method, and the blank (136) is subsequently pressed into the lens element (2) by means of a final shape mold (140, 141, 142), particularly in a polished manner.

主权项

1. Method for manufacturing a batch of headlight lenses for imaging an edge of a shield of a vehicle headlight as a light-dark-borderline having a defined gradient, the method comprising;
moulding a blank from transparent plastic material by means of an injection-pressing method in an injection-pressing mould, subsequently blank-moulding the blank by means of a final-shape mould to form a headlight lens, and consecutively repeating the previous steps such that the standard deviation of the gradients of the headlight lenses of the batch is smaller than or equal to 0.005.