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US 2017/0362113 A1Published application
Method for forming a glass preform
AssigneeHeraeus Tenevo GmbH
InventorsJong-Won Lee, Qiulin Ma, Kai Huei Chang
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Abstract
A method of forming a glass preform of predetermined length comprises providing a length of glass material to be separated to form a preform length and a remaining length; forming a notch in the glass material; inducing a tensile stress in excess of the tensile strength of the glass in an area adjacent to the notch; and separating the preform length from the remaining length at the notch.
Claims15
A method of forming a glass preform of predetermined length, comprising:
- providing a length of glass material to be separated to form a preform length and a remaining length;
- forming a notch in the glass material;
- inducing a tensile stress in excess of the tensile strength of the glass in an area adjacent to the notch;
- and
- separating the preform length from the remaining length at the notch.
2 more elements
Dependencies are inferred from the claim text.