Laser scoring with curved trajectory

Details Laser scoring with curved trajectory Laser scoring with curved trajectory

2008-11-26

2011-10-11

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

C359S709000, C219S121690

Reexamination Certificate

active

08035901

ABSTRACT:
Disclosed are systems and methods for scoring and separating a glass sheet along a curved trajectory using a laser and optics. The system includes a laser that generates a laser beam, a focusing lens, and a conical optical component, such as a conical lens or a reflective conical mirror. The laser directs the laser beam through the focusing lens and conical lens to create a curved score line that is projected onto a glass sheet to create a curved score line, along which the glass sheet can be separated. Optionally, the laser directs the laser beam through the focusing lens towards a conical mirror, off of which the laser beam is reflected toward the glass sheet to create a curved score line.

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patent: 5776220 (1998-07-01), Allaire et al.
patent: 6660963 (2003-12-01), Hoekstra et al.
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patent: 10-2007-0018761 (2007-02-01), None
patent: WO91-04829 (1991-04-01), None
Dickey, et al “Gaussain laser beam profile shaping”, Opt. Eng. 35 (11) 3285-3295 Nov. 1996.

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