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US 12,565,439 B2Granted
Method for producing an optical element of glass
AssigneeDocter Optics SE
InventorsChristoph Dittmann, Annegret Diatta, Alexander Kuppe, Ralf Polle, Toni Schnoor
Life of this patent
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Abstract
The disclosure relates to a method for producing an optical element (202), wherein a blank of transparent material is heated and/or provided and, after heating and/or after being provided between a first mold (UF) and at least one second mold (OF), is press molded, for example on both sides, to form the optical element (202) and is then exposed to a treatment atmosphere.
Claims24
A method for producing a headlight lens, the method comprising:
- providing a transport element with a support surface;
- providing a treatment chamber;
- providing an evaporation chamber with a passage between the treatment chamber and the evaporation chamber;
- providing a blank of glass;
- providing a surface treatment agent comprising a solvent as well as an active solid dissolved in the solvent, wherein the active solid comprises sulfate;
- press molding the blank to form a headlight lens comprising a light inlet surface within an intended light path of the headlight lens, a light outlet surface within the intended light path of the headlight lens, and a support surface outside the intended light path of the headlight lens;
- depositing the headlight lens on the transport element such that the support surface of the transport element is in contact with the support surface of the headlight lens;
- evaporating an amount of the surface treatment agent in the evaporation chamber to generate a treatment atmosphere, wherein the passage is closed;
- placing the transport element together with the headlight lens in the treatment chamber;
- afterwards opening the passage between the treatment chamber and the evaporation chamber such that treatment atmosphere flows into the treatment chamber to obtain a surface treated headlight lens;
- afterwards withdrawing the headlight lens from the treatment chamber;
- and
- passing the transport element together with the headlight lens through a cooling path, without the light inlet surface of the headlight lens being touched and without the light outlet surface of the headlight lens being touched.
10 more elements
A method for producing an optical element, the method comprising:
- providing a treatment chamber;
- providing an evaporation chamber with a passage between the treatment chamber and the evaporation chamber;
- providing a blank of glass;
- providing a surface treatment agent comprising a solvent as well as an active solid dissolved in the solvent;
- press molding the blank to form an optical element;
- evaporating an amount of the surface treatment agent in the evaporation chamber to generate a treatment atmosphere;
- placing the optical element in the treatment chamber;
- afterwards opening the passage between the treatment chamber and the evaporation chamber such that the treatment atmosphere flows into the treatment chamber to obtain a surface treated optical element;
- withdrawing the surface treated optical element from the treatment chamber;
- and
- cooling of the surface treated optical element in a cooling path for cooling with an addition of heat.
8 more elements
A method for producing an optical element, the method comprising:
- providing a treatment chamber;
- providing an evaporation chamber with a passage between the treatment chamber and the evaporation chamber;
- providing a blank of non-borosilicate glass is;
- providing a surface treatment agent comprising a solvent as well as an active solid dissolved in the solvent, wherein the active solid comprises sulfate;
- press molding the blank to form an optical element;
- evaporating an amount of the surface treatment agent in the evaporation chamber to generate a treatment atmosphere;
- placing the optical element in the treatment chamber;
- afterwards opening the passage between the treatment chamber and the evaporation chamber such that the treatment atmosphere flows into the treatment chamber to obtain a surface treated optical element;
- withdrawing the surface treated optical element from the treatment chamber;
- and
- cooling of the surface treated optical element in a cooling path for cooling with an addition of heat.
8 more elements
Dependencies are inferred from the claim text.