초록 ▼

A glass breaking system is provided for breaking large sheets of glass into small sheets, in which a laser beam having an elongated beam spot shape, with a largest dimension which is at least 20 mm, more preferably at least 30 mm, and most preferably at least 40 mm, is moved across a glass sheet to

A glass breaking system is provided for breaking large sheets of glass into small sheets, in which a laser beam having an elongated beam spot shape, with a largest dimension which is at least 20 mm, more preferably at least 30 mm, and most preferably at least 40 mm, is moved across a glass sheet to produce a partial crack score line. The glass sheet is then separated along the score line by applying a bending moment in the area of the partial crack.

대표청구항 ▼

[ What is claimed is:] [1.] A method for separating flat glass sheets comprising:moving a laser beam across a glass sheet having a thickness of 2 mm or less to draw a crack across said sheet, said laser beam moving in a direction of travel and having an elongated beam spot where it impinges on said

[ What is claimed is:] [1.] A method for separating flat glass sheets comprising:moving a laser beam across a glass sheet having a thickness of 2 mm or less to draw a crack across said sheet, said laser beam moving in a direction of travel and having an elongated beam spot where it impinges on said glass sheet, said beam spot having a width and length dimension, the length of the spot being longer than the width of the spot, the length dimension being greater that 20 mm, said length dimension aligned with said direction of travel; andseparating said sheet along said crack.