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US 12,110,247 B2Granted
Method for separating a glass element and glass sub-element
AssigneeSchott AG
InventorsDavid Sohr, Clemens Kunisch, Kurt Nattermann
Life of this patent
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Abstract
The present disclosure relates to a method for at least section-wise separating a glass element into at least two glass sub-elements along a separation face and a glass sub-element which is manufactured and/or can be manufactured in particular by the method according to the disclosure.
Claims20
A method for separating at least a portion of a glass element along a separation face, comprising the steps of:
- providing the glass element that comprises a glass body of a glass material;
- controlling a line focus of a light beam within the glass body to form a tensile stress zone and two compressive stress zones in the glass material along the separation face, wherein the tensile stress zone is between the two compressive stress zones;
- introducing an initial damage to form a crack in the glass material in the tensile stress zone;
- propagating the crack within the glass material between the two compressive stress zones to form the separation face;
- and
- separating the glass element along the separation face.
3 more elements
Dependencies are inferred from the claim text.