IP Library Granted Patent US 10,416,354
Granted Patent B2
US 10,416,354 · App. 15/418,982 · Granted Sep 17, 2019

Translucent structure

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Quick Facts
Patent No.
US 10,416,354
App. No.
15/418,982
Granted
Sep 17, 2019
Kind
B2
Abstract

The translucent structure of the present invention has a haze of higher than 10% and at most 70% and has a concavo-convex structure on its surface. The concavo-convex structure has first convex portions having a diameter of larger than 10 μm in a cross section at a height of 0.05 μm+the bearing height of a surface shape, and second convex portions having a diameter of larger than 1 μm in a cross section at a height of 0.5 μm+the bearing height. The average diameter of the first convex portions is larger than 10 μm and at most 185 μm in a cross section at a height of 0.05 μm+the bearing height. The maximum height of the first convex portions is from 0.2 to 8 μm. The number of the second convex portions is from 0.0004 to 1.2 per 1 um 2 .

Claims (30)

1. A translucent structure which has a haze of higher than 10% and at most 70%, having a concavo-convex structure on a surface thereof, wherein:

the concavo-convex structure has: first convex portions having a diameter of larger than 10 μm in a cross section at a height of 0.05 μm+the bearing height of a surface shape obtained by measuring a region of (101 μm×135 μm) to (111 μm×148 μm) by a laser microscope, and second convex portions having a diameter of larger than 1 μm in a cross section at a height of 0.5 μm+the bearing height of the surface shape;

the average of diameters of the first convex portions being larger than 10 μm and at most 185 μm in a cross section at a height of 0.05 μm+the bearing height of the surface shape;

the maximum height of the first convex portions is from 0.2 to 8 μm based on a height measured from the lowest portion in the region; and

the number density of the second convex portions is from 0.0004 to 1.2 per 1 μm 2 , and the average height of the second convex portions is from 0.1 to 8 μm based on the bearing height,

wherein the diameter of the first convex portion in a cross section is a diameter of an exact circle which has the same area as the first convex portion in the cross section, and the diameter of the second convex portion in a cross section is a diameter of an exact circle which has the same area as the second convex portion in the cross section.

2. The translucent structure according to claim 1 , wherein the translucent structure comprises a translucent substrate having the concavo-convex structure on a surface thereof.

3. The translucent structure according to claim 2 , wherein the translucent substrate is a glass plate.

4. The translucent structure according to claim 2 , wherein the translucent substrate has a curved surface.

5. The translucent structure according to claim 1 , wherein the translucent structure comprises a translucent substrate and an antiglare film formed on the translucent substrate, wherein the antiglare film has the concavo-convex structure on a surface thereof.

6. The translucent structure according to claim 5 , wherein the antiglare film has a refractive index of from 1.40 to 1.46.

7. The translucent structure according to claim 5 , wherein the antiglare film comprises silica as the main component.

8. The translucent structure according to claim 5 , wherein a 60° specular glossiness on the surface of the antiglare film is at most 90%.

9. The translucent structure according to claim 5 , wherein a 60° specular glossiness on the surface of the antiglare film is at most 50%.

10. The translucent structure according to claim 1 , comprising a water/oil repellent layer, wherein a surface of the water/oil repellent layer constitutes the surface having the concavo-convex structure.

11. The translucent structure according to claim 1 , wherein the translucent structure is suitable for an interior article for a transport vehicle.

12. The translucent structure according to claim 11 , wherein the translucent structure is suitable for an on-vehicle article.

13. A translucent structure which has a haze of higher than 10% and at most 70%, comprising a translucent substrate and an antiglare film formed on the translucent substrate,

wherein the antiglare film has a concavo-convex structure which has first convex portions having a diameter of larger than 10 μm in a cross section at a height of 0.05 μm+the bearing height of a surface shape obtained by measuring a region of (101 μm×135 μm) to (111 μm×148 μm) by a laser microscope, and second convex portions having a diameter of larger than 1 μm in a cross section at a height of 0.5 μm+ the bearing height of the surface shape;

wherein the average of diameters of the first convex portions is larger than 10 μm and at most 143 μm in a cross section at a height of 0.05 μm+the bearing height of the surface shape;

wherein the maximum height of the first convex portions is from 0.2 to 5 μm based on a height measured from the lowest portion in the region; and

wherein the number density of the second convex portions is from 0.0004 to 1.2 per 1 μm 2 , and the average height of the second convex portions is from 1 to 8 μm based on the bearing height,

wherein the diameter of the first convex portion in a cross section is a diameter of an exact circle which has the same area as the first convex portion in the cross section, and the diameter of the second convex portion in a cross section is a diameter of an exact circle which has the same area as the second convex portion in the cross section.

14. The translucent structure according to claim 13 , wherein the antiglare film has a refractive index of from 1.40 to 1.46.

15. The translucent structure according to claim 13 , wherein the antiglare film comprises silica as the main component.

16. The translucent structure according to claim 13 , wherein the translucent substrate is a glass plate.

17. The translucent structure according to claim 13 , wherein the translucent substrate has a curved surface.

18. The translucent structure according to claim 13 , further comprising a water/oil repellent layer, wherein a surface of the water/oil repellent layer constitutes the surface having the concavo-convex structure.

19. The translucent structure according to claim 13 , wherein the translucent structure is suitable for an interior article for a transport vehicle.

20. The translucent structure according to claim 19 , wherein the translucent structure is suitable for an on-vehicle article.

Assignments (2)
CHANGE OF NAME Recorded Aug 7, 2018
From: ASAHI GLASS COMPANY, LIMITED
To: AGC INC.
Reel/Frame 046730/0786 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2017
From: TAKAI, AZUSA; IKEDA, TORU; KASHIWABARA, SATOSHI; TAKEDA, YOSUKE
To: ASAHI GLASS COMPANY, LIMITED
Reel/Frame 041120/0215 →