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US 12,227,448 B2Granted
Flash annealing of silver coatings
AssigneeVitro Flat Glass LLC
InventorsPatrick Fisher, James W. McCamy, Paul A. Medwick, Adam D. Polcyn, James P. Thiel, Andrew V. Wagner
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Abstract
Methods of processing coated articles, such as transparencies, are provided comprising flash annealing one or more layers of the coated article. The one or more layers may be reflective metallic layers, such as silver layers, or comprise a transparent conductive oxide, such as indium tin oxide, or a semiconductor.
Claims20
A non-tempered transparency comprising:
- a. a substrate of thickness greater than 2.0 mm;
- b. a first dielectric layer over at least a portion of the substrate;
- c. a first metallic layer over at least a portion of the first dielectric layer;
- d. a first primer layer over at least a portion of the first metallic layer and having a thickness ranging from 1 to 2 nm;
- e. a second dielectric layer over at least a portion of the first primer layer;
- f. a second metallic layer over at least a portion of the second dielectric layer;
- g. a second primer layer over at least a portion of the second metallic layer and having a thickness ranging from 1 to 2 nm;
- h. a third dielectric layer over at least a portion of the second primer layer;
- i. a third metallic layer over at least a portion of the third dielectric layer;
- j. a third primer layer over at least a portion of the third metallic layer and having a thickness ranging from 1 to 2 nm;
- k. a fourth dielectric layer over at least a portion of the third primer layer;
- and
- l. An overcoat over at least a portion of the fourth dielectric layer,
- wherein at least one of the first metallic layer, the second metallic layer, and/or the third metallic layer is a discontinuous metallic layer,
- wherein the non-tempered transparency is flashed annealed with at least one flash of non-coherent light in the visible spectrum from a source with each flash having a flash intensity ranging from 1 J/cm2 to 7 J/cm2 for a pulse length between 0.1 ms and 10 ms, thereby resulting in a flashed non-tempered transparency having an increased visible light transmittance in combination a transmitted aesthetic CIELAB L*a*b* color value of L* ranging from 87 to 89, a* ranging from −3 to −5, and b* ranging from 3 to 5.
12 more elements
Dependencies are inferred from the claim text.