	US 12,140,848 B2
	Window and entryway systems with variable light transmission panels
John P. Cronin, Tucson, AZ (US); Anoop Agrawal, Tucson, AZ (US); Christopher Angelo, Tucson, AZ (US); Clemens Hofbauer, Portland, OR (US); Susana J. Castillo, Tucson, AZ (US); and Lori L. Adams, Tucson, AZ (US)
Assigned to Glass Dyenamics, Inc., Tucson, AZ (US)
Filed by Glass Dyenamics, Inc., Tucson, AZ (US)
Filed on Oct. 20, 2022, as Appl. No. 18/048,134.
Application 18/048,134 is a continuation in part of application No. 17/855,922, filed on Jul. 1, 2022.
Claims priority of provisional application 63/217,363, filed on Jul. 1, 2021.
Prior Publication US 2023/0066465 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 26/00 (2006.01); E06B 3/67 (2006.01); E06B 9/24 (2006.01); F21V 14/00 (2018.01); G02F 1/15 (2019.01); G02F 1/153 (2006.01); G02F 1/157 (2006.01); G02F 1/163 (2006.01); G09G 3/19 (2006.01); E06B 3/66 (2006.01); H01M 50/251 (2021.01)

CPC G02F 1/163 (2013.01) [E06B 3/6722 (2013.01); E06B 9/24 (2013.01); G02F 1/153 (2013.01); E06B 3/6612 (2013.01); E06B 2009/2464 (2013.01); G02F 2203/01 (2013.01); H01M 50/251 (2021.01); H01M 2220/10 (2013.01)]

27 Claims

1. A building entryway system containing at least one variable light transmission panel (VLTP), wherein the VLTP is used in at least one of a doorlite, a sidelite, and a transom of the building entryway system, and wherein the VLTP is configured to change optical transmission and color from a clear state to a colored state upon application of an electric voltage thereto, wherein the clear state and the colored state in transmission have a color difference ΔE* equal to or greater than 35 and configured such that said application of voltage does not change opacity of the VLTP by changing haze, wherein each of the at least one of a doorlite, a sidelite, and a transom comprises either (a) more than one VLTP or (b) the VLTP is divided into two or more sections.