Method for improved facade-level aesthetics of dynamic glass
AssigneeView Operating Corporation
InventorsIllayathambi Kunadian, Dmytro Poplavskyy, Sridhar Karthik Kailasam
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Abstract
Aspects of this disclosure concern controllers and control methods for transitioning a group of optically switchable devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the methods transition multiple optically switchable devices that are positioned in proximity as a group. The methods apply different drive voltages to different devices in a group. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition without slowing down transitioning of faster optically switchable devices in the group.
Claims29
A method of transitioning a group of optically switchable devices, the method comprising:
- (a) receiving a command to transition the group of optically switchable devices to an ending optical state, wherein the group of optically switchable devices comprises a slowest optically switchable device and a faster optically switchable device, and wherein the slowest optically switchable device transitions at a transitioning speed slower than or equal to any other optically switchable device in the group when a same drive voltage is applied to each optically switchable device of the group of optically switchable devices;
- (b) transitioning the slowest optically switchable device to the ending optical state by applying a first drive voltage to the slowest optically switchable device;
- and
- (c) during (b), transitioning the faster optically switchable device to the ending optical state by applying a second drive voltage to the faster optically switchable device, wherein the first drive voltage has a larger magnitude than the second drive voltage.
A control system comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the control system to:
- (a) receive a command to transition a group of optically switchable devices to an ending optical state, wherein the group of optically switchable devices comprises a slowest optically switchable device and a faster optically switchable device, and wherein the slowest optically switchable device transitions no faster than any other optically switchable device in the group when a same drive voltage is applied to the group of optically switchable devices;
- (b) transition the slowest optically switchable device to the ending optical state by applying a first drive voltage to the slowest optically switchable device;
- and
- (c) during (b), transition the faster optically switchable device to the ending optical state by applying a second drive voltage to the faster optically switchable device, wherein the first drive voltage has a larger magnitude than the second drive voltage.
A computer program product comprising one or more non-transitory storage media having stored thereon instructions that, when executed by one or more processors of a control system, cause the control system to control a group of optically switchable devices, the instructions comprising:
- (a) receiving a command to transition the group of optically switchable devices to an ending optical state, wherein the group of optically switchable devices comprises a slowest optically switchable device and a faster optically switchable device, and wherein the slowest optically switchable device transitions no faster than any other optically switchable device in the group when a same drive voltage is applied to the group of optically switchable devices;
- (b) transitioning the slowest optically switchable device to the ending optical state by applying a first drive voltage to the slowest optically switchable device;
- and
- (c) during (b), transitioning the faster optically switchable device to the ending optical state by applying a second drive voltage to the faster optically switchable device, wherein the first drive voltage has a larger magnitude than the second drive voltage.
Dependencies are inferred from the claim text.