US 11,718,070 B2
Laminated window assembly
Srikanth Varanasi, Ottawa Hills, OH (US); David Lawrence Bamber, Preston (GB); Shannon Jurca, Perrysburg, OH (US); and David Alan Strickler, Toledo, OH (US)
Assigned to Pilkington Group Limited, Lathom (GB)
Appl. No. 17/611,275
Filed by PILKINGTON GROUP LIMITED, Lathom (GB)
PCT Filed May 20, 2020, PCT No. PCT/GB2020/051235
§ 371(c)(1), (2) Date Nov. 15, 2021,
PCT Pub. No. WO2020/234593, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/850,220, filed on May 20, 2019.
Prior Publication US 2022/0234334 A1, Jul. 28, 2022
Int. Cl. B32B 17/10 (2006.01); C03C 17/34 (2006.01)
CPC B32B 17/10211 (2013.01) [B32B 17/10036 (2013.01); B32B 17/10449 (2013.01); C03C 17/3417 (2013.01); B32B 2255/20 (2013.01); B32B 2255/28 (2013.01); B32B 2307/416 (2013.01); B32B 2307/418 (2013.01); B32B 2315/08 (2013.01); B32B 2605/006 (2013.01); B32B 2605/08 (2013.01); C03C 2217/734 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laminated window assembly, comprising:
a first glass pane having a coating formed thereon, wherein the coating includes
i. a first layer deposited over a major surface of the glass pane, wherein the first layer has a refractive index of 1.6 or more and a thickness of 50 nm or less,
ii. a second layer deposited over the first layer, wherein the second layer has a refractive index that is less than the refractive index of the first layer and a thickness of 50 nm or less,
iii. a third layer deposited over the second layer, wherein the third layer has a refractive index that is greater than the refractive index of the second layer and a thickness of at least 250 nm and less than 500 nm,
iv. a fourth layer deposited over the third layer, wherein the fourth layer has a refractive index that is less than the refractive index of the third layer and a thickness of 100 nm or less;
a second glass pane; and
a polymeric interlayer provided between the first glass pane and the second glass pane.