MIRROR

• US 20140211332A1
• Filed: 01/25/2013
• Published: 07/31/2014
• Est. Priority Date: 01/25/2013
• Status: Active Grant

• Current Assignee: Guardian Glass LLC (KOCH Industries Incorporated)
• Original Assignee: Guardian Industries Corporation (KOCH Industries Incorporated)
• Inventors: KRASNOV, Alexey, den BOER, Willem
• Granted Patent: US 9,134,467 B2
• Time in Patent Office: Days
• US Class Current: 359/838
• CPC Class Codes: C03C 17/36 at least one coating being a metal
• CPC Class Codes: C03C 17/361 Coatings of the type glass/metal/inorganic compound/metal/inorganic compound/other
• CPC Class Codes: C03C 17/3626 one layer at least containing a nitride, oxynitride, boronitride or carbonitride
• CPC Class Codes: C03C 17/3639 Multilayers containing at least two functional metal layers
• CPC Class Codes: C03C 17/3644 the metal being silver
• CPC Class Codes: C03C 17/3649 made of metals other than silver
• CPC Class Codes: C03C 17/3663 specially adapted for use as mirrors
• CPC Class Codes: C03C 17/38 at least one coating being a coating of an organic material
• CPC Class Codes: G02B 5/0875 the reflecting layers comprising two or more metallic layers

Abstract

Mirrors having at least one of: (a) a reflective film including a first layer of or including aluminum and a second layer of or including silver or the like, and/or (b) a color tuning layer between first and second layers. The mirrors may be second surface mirrors in certain example embodiments. The mirrors may be flat or bent in different instances, and may or may not be heat treated (e.g., thermally tempered and/or thermally bent).

Claims

1. A mirror, comprising:

a glass substrate;

a reflective film on the glass substrate, the reflective film comprising a first metallic or substantially metallic layer and a second metallic or substantially metallic layer; and

wherein the first metallic or substantially metallic layer of the reflective film comprises silver and the second metallic or substantially metallic layer of the reflective film comprises aluminum, and wherein the first metallic or substantially metallic layer comprising silver is located between at least the glass substrate and the second metallic or substantially metallic layer comprising aluminum.

2. The mirror of claim 1, wherein the first metallic or substantially metallic layer of the reflective film consists essentially of silver.

3. The mirror of claim 1, wherein the second metallic or substantially metallic layer of the reflective film consists essentially of aluminum.

4. The mirror of claim 1, further comprising at least one seed layer located between the glass substrate and the first metallic or substantially metallic layer comprising silver, and wherein the seed layer directly contacts the first metallic or substantially metallic layer comprising silver.

5. The mirror of claim 4, wherein the seed layer comprises one or more of silicon nitride, silicon oxynitride, silicon oxide, zinc oxide, tin oxide, aluminum oxynitride, and zinc stannate.

6. The mirror of claim 4, wherein the seed layer comprises silicon nitride.

7. The mirror of claim 1, where the first metallic or substantially metallic layer comprising silver is from 80-240 Å

thick.

8. The mirror of claim 1, where the first metallic or substantially metallic layer comprising silver is from 90-200 Å

thick.

9. The mirror of claim 1, wherein the second metallic or substantially metallic layer comprising aluminum is from 180-700 Å

thick.

10. The mirror of claim 1, wherein the second metallic or substantially metallic layer comprising aluminum is from 180-400 Å

thick.

11. The mirror of claim 1, wherein the reflective film is from 40-100 nm thick.

12. The mirror of claim 1, wherein the mirror has a glass side visible reflectance of from about 85-95%.

13. The mirror of claim 1, wherein the first and second layers of the reflective film are sputter-deposited layers.

14. The mirror of claim 1, further comprising a layer comprising paint, the reflective film being located between at least the glass substrate and the layer comprising paint.

15. The mirror of claim 1, further comprising a protective layer, the reflective film being located between at least the glass substrate and the protective layer.

16. The mirror of claim 15, wherein the protective layer comprises silicon nitride.

17. The minor of claim 1, wherein the mirror is a second surface mirror.

18. The mirror of claim 1, further comprising a dielectric layer provided between the first metallic or substantially metallic layer comprising silver and the second metallic or substantially metallic layer comprising aluminum.

19. The mirror of claim 18, wherein the dielectric layer comprises silicon nitride and/or silicon oxynitride.

20. The mirror of claim 1, wherein the first metallic or substantially metallic layer comprising silver directly contacts the second metallic or substantially metallic layer comprising aluminum.

21. The mirror of claim 1, wherein the first metallic or substantially metallic layer comprising silver is at least 50 Å

thinner than the second metallic or substantially metallic layer comprising aluminum.

22. A mirror, comprising:

a glass substrate;

a reflective film on the glass substrate, the reflective film comprising a first metallic or substantially metallic layer and a second metallic or substantially metallic layer; and

wherein the first metallic or substantially metallic layer of the reflective film comprises copper and the second metallic or substantially metallic layer of the reflective film comprises aluminum, and wherein the first metallic or substantially metallic layer comprising copper is located between at least the glass substrate and the second metallic or substantially metallic layer comprising aluminum.

23. The mirror of claim 22, wherein the first metallic or substantially metallic layer of the reflective film consists essentially of copper.

24. The mirror of claim 22, wherein the second metallic or substantially metallic layer of the reflective film consists essentially of aluminum.

25. A mirror, comprising:

a glass substrate;

a reflective film on the glass substrate, the reflective film comprising a first metallic or substantially metallic layer and a second metallic or substantially metallic layer;

wherein the first metallic or substantially metallic layer of the reflective film comprises material selected from the group consisting of silver, copper and aluminum;

wherein the second metallic or substantially metallic layer of the reflective film comprises aluminum, and wherein the first metallic or substantially metallic layer comprising silver is located between at least the glass substrate and the second metallic or substantially metallic layer comprising aluminum; and

a dielectric film provided between and directly contacting the first and second layers of the reflective film.

26. The mirror of claim 25, wherein the dielectric film comprises silicon nitride.

27. The mirror of claim 25, wherein the dielectric film comprises silicon oxynitride.