US 11,851,944 B2
Variably transmissive window with tunable dynamic range
George A. Neuman, Holland, MI (US); Mario F. Saenger Nayver, Zeeland, MI (US); John S. Anderson, Holland, MI (US); David M. Ellis, Holland, MI (US); Matthew A. Koppey, Holland, MI (US); and Stephen F. Richlich, Holland, MI (US)
Assigned to GENTEX CORPORATION, Zeeland, MI (US)
Filed by GENTEX CORPORATION, Zeeland, MI (US)
Filed on Mar. 3, 2021, as Appl. No. 17/190,817.
Claims priority of provisional application 62/984,986, filed on Mar. 4, 2020.
Prior Publication US 2021/0277711 A1, Sep. 9, 2021
Int. Cl. E06B 9/24 (2006.01); G02F 1/17 (2019.01); G02F 1/157 (2006.01); G02F 1/1335 (2006.01); B32B 17/10 (2006.01); E06B 3/67 (2006.01)
CPC E06B 9/24 (2013.01) [B32B 17/1022 (2013.01); B32B 17/10036 (2013.01); B32B 17/10495 (2013.01); E06B 3/6722 (2013.01); G02F 1/133502 (2013.01); G02F 1/157 (2013.01); G02F 1/172 (2013.01); B32B 2307/412 (2013.01); E06B 2009/2464 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A window comprising:
a first substrate having a first surface and a second surface, the first surface in a first direction relative the second surface;
a second substrate having a third surface and a fourth surface, the second substrate disposed in a substantially parallel and spaced apart relationship in the second direction relative the first substrate, the second direction opposite the first direction, the third surface disposed in the first direction relative the fourth surface;
a first electrode disposed in the second direction relative the first substrate;
a second electrode disposed in the first direction relative the second substrate;
an electro-optic medium disposed between the first electrode and the second electrode, the electro-optic medium operable to vary a transmittance of light therethrough; and
a substantially transparent tuning layer operable to attenuate the transmittance of visible light therethrough, wherein the tuning layer is operable to attenuate the transmittance of visible light therethrough from between 70 and 45 percent, and wherein the tuning layer comprises ruthenium.