Method for producing an optical element, for example a headlight lens for a motor vehicle headlight
AssigneeDocter Optics SE
InventorsSven Fröhlich, Fiete Bauer
Life of this patent
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Abstract
The present disclosure relates to a method for producing an optical element, for example a lens, for example a headlight lens, for example for vehicle headlights or motor vehicle headlights, wherein an optical component part having an (optically effective) convex surface made of a first transparent optical material is provided and/or produced; a mold having a concave cavity and optical material is provided and/or produced; liquid transparent second optical material is placed into the concave cavity of the mold; and the optical component part having the convexly curved surface is pressed into the concave cavity of the mold such that an optically effective coating is formed on the convexly curved surface.
Claims19
A method for producing an optical lens, the method comprising:
- providing a partial-optic with a convexly curved surface made of a first transparent optical material, the first transparent optical material being inorganic glass having a first refractive index;
- providing a mold with a concave cavity;
- providing a liquid transparent second optical material, the transparent second optical material comprising a hybrid polymer;
- placing the liquid transparent second optical material into the concave cavity of the mold;
- pressing the partial-optic with the convexly curved surface into the concave cavity of the mold, such that the liquid transparent second optical material forms an optically effective coating on the convexly curved surface of the partial-optic, the optically effective coating having a second refractive index;
- curing the optically effective coating by irradiating the optically effective coating with UV light through the partial-optic;
- and
- hardbaking the optically effective coating by heat treatment after curing such that the second refractive index differs from the first refractive index by no more than 20%.
A method for producing an optical lens, the method comprising:
- providing a partial-optic with a press molded convexly curved surface made of a first transparent optical material, the first transparent optical material being silicate glass having a first refractive index;
- providing a mold with a concave cavity;
- providing a liquid transparent second optical material, the transparent second optical material comprising a hybrid polymer;
- placing the liquid transparent second optical material into the concave cavity of the mold;
- pressing the partial-optic with the convexly curved surface into the concave cavity of the mold, such that the liquid transparent second optical material forms an optically effective coating on the convexly curved surface of the partial-optic;
- curing the optically effective coating by irradiating the optically effective coating with UV light through the mold;
- and
- removing the optical lens from the concave cavity of the mold, wherein the optically effective coating has a second refractive index different from the first refractive index by no more than 20%.
A method for producing an optical lens, the method comprising:
- providing a partial-optic with a coating surface made of a first transparent optical material, the first transparent optical material being silicate glass having a first refractive index;
- providing a mold with a cavity;
- providing a liquid transparent second optical material, the transparent second optical material comprising a hybrid polymer;
- applying the liquid transparent second optical material on top of the coating surface;
- pressing the partial-optic with the coating surface into the cavity of the mold, such that the liquid transparent second optical material forms an optically effective coating on the coating surface;
- curing the optically effective coating by irradiating with UV light;
- and
- afterwards, removing the optical lens from the concave cavity of the mold, wherein the optically effective coating has a second refractive index different from the first refractive index by no more than 20%.
Dependencies are inferred from the claim text.