Coated pane having areas in which the coating is partially removed

Patent metadata

Field	Value
Publication number	US-10384308-B2
Application number	US-201314421991-A
Country	US
Kind code	B2
Filing date	Aug 20, 2013
Priority date	Aug 28, 2012
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A coated pane having a communication window, having: a. a base pane, b. a coating containing metal, c. a first grid plane and a second grid plane within the coating containing metal, wherein the first grid plane and the second grid plane have areas in which the coating is removed, in form of grid lines arranged in the manner of a mesh, the grid lines in the first grid plane on at least one long side transition into an open comb structure having teeth and the grid lines in the second grid plane on at least one long side transition into a closed comb structure, wherein the first grid plane is connected by means of at least one tooth of the open comb structure to the closed comb structure of the second grid plane.

First claim

The invention claimed is:

1. A method for producing a coated pane with a communication window, comprising:
in a first step, providing a base pane with a metal-containing coating; and
in a second step,
i) locally decoating, in a first pane region, the metal-containing coating with a laser to form a plurality of separate and parallel horizontal decoated lines and a plurality of separate and parallel vertical decoated lines that intersect to form a first grid area having a net structure, the first grid area further having at least one long side with an open comb structure with teeth arranged at a first edge region of the first grid area, the teeth being formed by extensions of the plurality of the separate and parallel vertical decoated lines beyond a last decoated line of the plurality of separate and parallel horizontal decoated lines, and
ii) locally decoating, in a second pane region, the metal-containing coating adjacent the first grid area with a laser to form a plurality of separate and parallel horizontal decoated lines and a plurality of separate and parallel vertical decoated lines that intersect to form a second grid area having a net structure, the second grid area further having at least one long side with a closed comb structure arranged at a second edge region of the second grid area, the closed comb structure being formed by a first decoated line of the plurality of separate and parallel horizontal decoated lines that coincides with ends of the plurality of separate and parallel vertical decoated lines at the second edge region,
wherein the first pane region and the second pane region overlap only at the first and second edge regions so that the first grid area and the second grid area are connected via connection of at least one tooth of the open comb structure to the first decoated line of the closed comb structure, and
wherein step i) is executed before step ii).

2. The method according to claim 1 , wherein the laser is guided at a speed from 100 mm/s to 10000 mm/s.

3. The method according to claim 1 , wherein the laser comprises a carbon dioxide laser, YAG laser, Nd YAG laser, ytterbium YAG laser, holmium YAG laser, erbium YAG laser, neodymium glass laser, excimer laser, fiber laser, disk laser, slab laser, or diode laser, and the laser has output from 1 W to 10 kW.

4. A method for producing a coated pane with a communication window, the method comprising:
in a first step, providing a base pane with a metal-containing coating; and
in a second step,
i) locally decoating, in a second pane region, the metal-containing coating with a laser to form a plurality of separate and parallel horizontal decoated lines and a plurality of separate and parallel vertical decoated lines that intersect to form a second grid area having a net structure, the second grid area further having at least one long side with a closed comb structure arranged at a second edge region of the second grid area, the closed comb structure being formed by a first decoated line of the plurality of separate and parallel horizontal decoated lines that coincides with ends of the plurality of separate and parallel vertical decoated lines at the second edge region, and
ii) locally decoating, in a first pane region, the metal-containing coating adjacent the second grid area with a laser to form a plurality of separate and parallel horizontal decoated lines and a plurality of separate and parallel vertical decoated lines that intersect to form a first grid area having a net structure, the first grid area further having at least one long side with an open comb structure with teeth arranged at a first edge region of the first grid area, the teeth being formed by extensions of the plurality of the separate and parallel vertical decoated lines beyond a last decoated line of the plurality of separate and parallel horizontal decoated lines,
wherein the first pane region and the second pane region overlap only at the first and second edge regions so that the first grid area and the second grid area are connected via connection of at least one tooth of the open comb structure to the first decoated line of the closed comb structure, and
wherein step i) is executed before step ii).

5. The method according to claim 4 , wherein the laser is guided at a speed from 100 mm/s to 10000 mm/s.

6. The method according to claim 4 , wherein the laser comprises a carbon dioxide laser, YAG laser, Nd YAG laser, ytterbium YAG laser, holmium YAG laser, erbium YAG laser, neodymium glass laser, excimer laser, fiber laser, disk laser, slab laser, or diode laser, and the laser has output from 1 W to 10 kW.

7. The method according to claim 1 , wherein:
a distance g between any two consecutive decoated lines of the plurality of separate and parallel vertical decoated lines of the first and second grid areas is constant, and
the connection between the first and second grid areas provides an offset in alignment between the plurality of separate and parallel vertical decoated lines of the first and the second grid areas that is in a range from 0% to 10% of the distance g.

8. The method according to claim 4 , wherein:
a distance g between any two consecutive decoated lines of the plurality of separate and parallel vertical decoated lines of the first and second grid areas is constant, and
the connection between the first and second grid areas provides an offset in alignment between the plurality of separate and parallel vertical decoated lines of the first and the second grid areas that is in a range from 0% to 10% of the di stance g.

Assignees

• Saint Gobain

Inventors

• Wohlfeil Dirk
• Arslan Ilkay
• Von Der Weiden Ingo
• Behmke Michael
• Droste Stefan

Classifications

• H01Q15/00

  Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices (variable for purpose of altering directivity H01Q3/00; arrangements of such devices for guiding waves H01P3/20; variable for purpose of modulation H03C7/02) · CPC title

• C03C23/00

  Other surface treatment of glass not in the form of fibres or filaments · CPC title

• C03C17/36

  at least one coating being a metal · CPC title

• B32B17/10 Primary

  of synthetic resin · CPC title

• B23K2103/16

  Composite materials · CPC title