Patent ID: 11927867
Assignee: VIEW, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A controller for controlling an optical state of an optically switchable device, the controller comprising:
circuitry for applying voltage or providing instructions to apply voltage between bus bars on the optically switchable device, wherein the bus bars are separated by a distance of at least about 30 inches, and wherein the bus bars are electrically connected with transparent conductive layers of the optically switchable device; and
a processing component configured to cause:
supplying an applied voltage (Vapp) to the bus bars to transition the optically switchable device from a first optical state to a second optical state,
wherein applying the Vapp to the bus bars results in a local effective voltage (Veff) between the transparent conductive layers,
wherein during the transition, the Veff remains above a minimum voltage threshold and below a maximum voltage threshold at locations between the bus bars.