Coated transparent substrate
First Claim
Patent Images
1. A coated wear resistant and transparent substrate comprising a multi-layer system with at least one layer of an oxynitride of one of hafnium, zirconium, tantalum and titanium, and with no metal layer, the substrate with multi-layer system having a reduced sun energy transmittance and reduced anti-reflective effect in the visual spectral range.
0 Assignments
0 Petitions
Accused Products
Abstract
A coated wear resistant and transparent glass substrate has a multi-layer system with at least one layer of an oxynitride of one of hafnium, zirconium, tantalum and titanium, and with no metal layer. The substrate with multi-layer system has a reduced sun energy transmittance and anti-reflective effect in the visual spectral range.
-
Citations
48 Claims
-
1. A coated wear resistant and transparent substrate comprising a multi-layer system with at least one layer of an oxynitride of one of hafnium, zirconium, tantalum and titanium, and with no metal layer, the substrate with multi-layer system having a reduced sun energy transmittance and reduced anti-reflective effect in the visual spectral range.
- View Dependent Claims (2, 3, 4, 5, 6, 10, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
-
39. The substrate of claim 38, wherein said ratio x/y is:
space="preserve" listing-type="equation">3/2≦
x/y≦
2.
-
40. The substrate of claim 38, wherein said ratio x/y is 1.7 at least approximately.
-
41. The substrate of claim 37, wherein the index of refraction of said hafnium-oxynitride is within the range of 2.5 to 2.8 (both limits included) for light with a wave-length of 400 nm.
-
42. The substrate of claim 37, wherein the index of refraction of said hafnium-oxynitride is within the range of 2.5 to 2.8 (both limit values included) and the extinction coefficient k is at the most 0.02.
-
43. The substrate of claim 42, wherein said extinction coefficient k is at the most 0.01.
-
44. The substrate of claim 37, further comprising at least one hafnium-nitride layer.
-
45. The substrate of claim 1, wherein at least said oxynitride layer is produced by a reactive deposition process.
-
46. The substrate of claim 45, wherein said reactive deposition process is one of a reactive ion-plating process and a reactive sputter-deposition process.
-
47. The substrate of claim 1, being a transparent window-substrate.
-
48. The substrate of claim 47, being a motor vehicle window.
- 11. The substrate of claim 11, wherein the transmittance at least for a predominant part of the visible light spectrum is at least 70%.
Specification