A plate-like glass element including a pair of opposite side faces and at least one channel introduced into the glass of the glass element. The at least one channel joins the side faces and opens into the side faces. The at least one channel has a rounded wall and a transverse dimension of less than 100 μm. The at least one channel extends in a longitudinal direction that runs transverse to the side faces. The rounded wall of the at least one channel has a plurality of rounded, substantially hemispherical depressions.

A system for separating the front and back outer glass layer from the casing/body of electronic mobile devices and for cutting mobile device screen protector sheets by way of laser burning and cutting comprises a housing, such housing containing a laser; a mirror galvanometer; a safety chamber enclosure; a metal plate with internal glass sheet; a chamber with opening and closing lid, lid button and lid sensor; a control printed circuit board with processor; a power inlet; a power supply; and an on/off switch.

An apparatus includes a beam splitter and a plurality of mirrors. The beam splitter is positioned to receive a laser beam from a source and split the received laser beam to a first plurality of split laser beams and a second plurality of split laser beams. The plurality of mirrors is configured to direct the first plurality of split laser beams and further configured to direct the second plurality of split laser beams. The first plurality of split laser beams is directed by the plurality of mirrors is configured to cut a glass substrate. The second plurality of split laser beams is directed by the plurality of mirrors is configured to shape the glass substrate.

The present invention generally relates to multi-layer, flat glass structures and a method of manufacturing multi-layer, flat glass structures.

Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (20a), to thereby collect the thread-like peeled material (Ge).

The present invention generally relates to multi-layer, flat glass structures and a method of manufacturing multi-layer, flat glass structures.

Disclosed is a system for efficiently cutting a transparent substrate. The system includes a laser source in optical communication with at least one multi-foci optical system. The laser source outputs at least one optical signal to the optical system. The optical system is positioned between the laser source and the substrate to be cut. The optical system includes at least one housing detachably coupled to at least one base member. One or more plate members having one or more apertures formed therein may be coupled to at least one of the housing, the baser member, or both. The aperture formed on the plate member may be configured to permit the optical signal to enter and exit the optical system. Various optical subassemblies may be positioned within or coupled to the optical system.

A method for laser processing a transparent workpiece includes forming a contour line that includes defects, by directing a pulsed laser beam output by a beam source through an aspheric optical element positioned offset in a radial direction from the beam pathway and into the transparent workpiece such that the portion of the pulsed laser beam directed into the transparent workpiece generates an induced absorption within the transparent workpiece that produces a defect within the transparent workpiece. The portion of the pulsed laser beam directed into the transparent workpiece includes a wavelength , an effective spot size w.sub.o,eff, and a non-axisymmetric beam cross section having a minimum Rayleigh range Z.sub.Rx,min in an x-direction and a minimum Rayleigh range Z.sub.Ry,min in a y-direction. Further, the smaller of Z.sub.Rx,min and Z.sub.Ry,min is greater than F.sub.Dw.sub.0,eff.sup.2/, where F.sub.D is a dimensionless divergence factor comprising a value of 10 or greater.

A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein at pulse laser beam is radiated on the predetermined cut line on the surface of the work under the conditions causing a multiple photon absorption and with a condensed point aligned to the inside of the work, and a modified area is formed inside the work along the predetermined determined cut line by moving the condensed point along the predetermined cut line, whereby the work can be cut with a rather small force by cracking the work along the predetermined cut line starting from the modified area and, because the pulse laser beam radiated is not almost absorbed onto the surface of the work, the surface is not fused even if the modified area is formed.

A conveying device (14) for a glass film (G) includes: a first support (21) configured to support a first portion (Gc) of the glass film (G) having been cut; a second support (22) configured to support a second portion (Gd) of the glass film (G) having been cut; and an opening (23) formed at a position between the first support (21) and the second support (22) and below a laser irradiation apparatus (19). A cutting step for the glass film (G) includes deforming the glass film (G) so as to be convex downward through the opening (23), and radiating a laser beam (LB) from the laser irradiation apparatus (19) to a position which is within a range of the opening (23), and which is prevented from coinciding with a top (GT) of the glass film (G).