Laser formed chamfers for glass sheets

Abstract

A method for forming a chamfered edge in a sheet comprising glass is provided comprising generating a laser beam that is a caustic or curving Bessel beam. The method comprises directing the beam to the sheet to form the chamfered edge leading from and extending between a first surface to an opposite second surface. A first contact angle is defined between a first line normal to the first surface and a second line tangent to a portion of the chamfered edge immediately adjacent to the first surface. A second contact angle is defined between a third line normal to the second surface and a fourth line tangent to a portion of the chamfered edge immediately adjacent to the second surface. Contact angles are both at least about

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