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AssigneeView, Inc.
InventorsIllayathambi Kunadian, Dmytro Poplavskyy, Sridhar Karthik Kailasam
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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.
A method of transitioning a group of optically switchable devices, the method comprising:
The method of any one of the preceding claims, wherein the faster optically switchable device and the slowest optically switchable device take about a same amount of time to transition to an intermediate optical state before transitioning to the ending optical state, the intermediate optical state having an optical density that is between an optical density of a starting optical state and an optical density of the ending optical state.
The method of any one of the preceding claims, wherein the second drive voltage generates a current having a signal to noise ratio larger than a specified criterion.
The method of any one of the preceding claims, wherein:
The method of any one of the preceding claims, wherein:
The method of any one of the preceding claims, wherein the slowest optically switchable device has a larger surface area than the faster optically switchable device.
The method of any one of the preceding claims, wherein (b) and (c) occur in about a same period of time.
The method of any one of the preceding claims, further comprising:
The method of any one of the preceding claims, wherein a bus bar distance (BBD) of the slowest optically switchable device is larger than a BBD of the faster optically switchable device.
The method of any one of the preceding claims, wherein a diagonal bus bar distance (DBBD) of the slowest optically switchable device is larger than a DBBD of the faster optically switchable device.
The method of any one of the preceding claims, further comprising:
The method of any one of the preceding claims, wherein a transition of the slowest optically switchable device is monitored using feedback obtained during the transition of the slowest optically switchable device.
The method of any one of the preceding claims, further comprising applying a hold voltage to each device of the group of optically switchable devices as each device reaches the ending optical state.
The method of any one of the preceding claims, further comprising:
The method of any one of the preceding claims, wherein the faster optically switchable device transitions to the ending optical state without pausing.
The method of any one of the preceding claims, further comprising determining a starting optical state of each optically switchable device of the group of optically switchable devices using feedback obtained from each optically switchable device before each optically switchable device starts to transition.
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 implement the method of any one of the preceding claims.
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 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:
Dependencies are inferred from the claim text.