Device and method for producing a patterned functional coating for a glass layer
AssigneeSaint-Gobain Glass France
InventorLi-Ya YEH
Life of this patent
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Abstract
A device and a method for producing a patterned functional coating on a first curved glass layer, the device including a support for holding the first curved glass layer, at least one laser, and a guidance unit, provided for guiding the beam of the laser over the functional coating, such that parts of the functional coating are removed in order to pattern the functional coating.
Claims13
A device for producing a patterned functional coating on a first curved glass layer for a glass pane, wherein the functional coating has an electrically conductive coating and/or a low-E coating, the device comprising
- a support for holding the first curved glass layer,
- at least one laser, and
- a guidance unit, provided for guiding a beam of the laser over the functional coating such that parts of the functional coating are removed in order to pattern the functional coating in the surface.
A method for producing a glass pane, comprising:
- obtaining a first curved glass layer, wherein the first curved glass layer has, at least in sections, a functional coating, wherein the functional coating comprises an electrically conductive coating and/or a low-E coating, and wherein the functional coating is applied after the bending of the glass pane,
- patterning the functional coating on the first glass layer by laser ablation, wherein a distance between the laser and the functional coating is approx. 0.5 m up to 2 m, wherein
- the laser provides pulsed laser radiation with power of 100 watts or more, and/or
- a light of the laser has a wavelength of 355 nm, 532 nm, or 1064 nm, and/or
- the laser provides pulsed laser radiation with a period of a few nanoseconds to a few picoseconds.
Dependencies are inferred from the claim text.