Abstract: A multi-layer device comprising a first substrate and a first electrically conductive layer on a surface thereof, the first electrically conductive layer having a sheet resistance to the flow of electrical current through the first electrically conductive layer that varies as a function of position.

Abstract: A sky sensor device for measuring direct normal illuminance (DNE) value is described. One method controls a camera sensor to capture a series of exposure-bracketed images having a first dynamic range and generate an image from the series of exposure-bracketed images, the image having a second dynamic range higher than the first dynamic range. The method controls an illuminance sensor to measure a global illuminance value. The method determines a global horizontal diffuse value based on at least the image. The method determines a direct normal illuminance (DNE) value using the global illuminance value and the global horizontal diffuse value.

Abstract: A method includes receiving first dimensions of an electrochromic device and second dimensions of one or more obstructions of the electrochromic device. The method further includes generating, based on the first dimensions and the second dimensions, an obstruction map that indicates at least one of an obstructed portion or an unobstructed portion of the electrochromic device. The method further includes determining, based the obstruction map, a first desired tinting state of the electrochromic device. The method further includes causing a current tinting state of the electrochromic device to correspond to the first desired tinting state.

Abstract: An electrochromic device is provided. The device includes a first transparent substrate and a second transparent substrate and a first electrically conductive layer and a second electrically conductive layer. A first bus bar is in contact with the first electrically conductive layer and a second bus bar in contact with the second electrically conductive layer. The first and second electrically conductive layers are patterned with sets of scribed lines substantially parallel to the corresponding bus bar, wherein the sets of scribed lines are made up of a series of collinear segments, which are gaps in the electrically conductive layer, wherein the length of the collinear segments, the period, the valve width and the offset between segments in adjacent scribed lines determines the resistance to the flow of electrons traversing a set of scribed lines in the direction substantially perpendicular to the corresponding bus bar.

Abstract: A method of controlling tint for a plurality of electrochromic devices, performed by a control system, is provided. The method includes receiving a request to change tint level of a plurality of electrochromic devices, and consulting transfer functions for tint level relative to drive for each of the plurality of electrochromic devices, wherein at least one of the plurality of electrochromic devices has a transfer function differing from at least one other of the plurality of electrochromic devices. The method includes driving each of the plurality of electrochromic devices in accordance with the transfer functions, so as to coordinate tint level or rate of change of tint level across the plurality of electrochromic devices.

Abstract: A method includes identifying a plurality of images corresponding to sky conditions and isolating cloud pixels from sky pixels in each of the plurality of images. Responsive to determining percentage of cloud pixels in one or more of the plurality of images meets a threshold value, the method further includes determining predicted cloud movement relative to sun position. The method further includes causing a tint level of an electrochromic device to be controlled based on the predicted cloud movement relative to the sun position.

Abstract: A multi-layer device comprising a first substrate, a first electrically conductive layer on a surface thereof, and a first current modulating layer, the first electrically conductive layer having a sheet resistance to the flow of electrical current through the first electrically conductive layer that varies as a function of position.

Abstract: A multi-layer device comprising a first substrate and a first electrically conductive layer on a surface thereof, the first electrically conductive layer having a sheet resistance to the flow of electrical current through the first electrically conductive layer that varies as a function of position.

Abstract: A method for controlling an electrochromic device is provided. The method includes applying a constant supply current to the electrochromic device and determining an amount of charge transferred to the electrochromic device, as a function of time and current supplied to the electrochromic device. The method includes ceasing the applying the constant supply current, responsive to a sense voltage reaching a sense voltage limit and applying one of a variable voltage or a variable current to the electrochromic device to maintain the sense voltage at the sense voltage limit, responsive to the sense voltage reaching the sense voltage limit. The method includes terminating the applying the variable voltage or the variable current to the electrochromic device, responsive to the determined amount of charge reaching a target amount of charge.

Abstract: A multi-layer device comprising a first substrate and a first electrically conductive layer on a surface thereof, the first electrically conductive layer having a sheet resistance to the flow of electrical current through the first electrically conductive layer that varies as a function of position.

Abstract: A sky sensor device for measuring direct normal illuminance (DNE) value is described. One sky sensor device includes a camera sensor to capture a series of images, an illuminance sensor to measure illuminance, and a processing device coupled to the camera sensor and the illuminance sensor. The processing device determines a DNE value using the series of images and the illuminance.

Abstract: Disclosed is a system, method, and computer program product that employs high dynamic range (HDR) image processing and manipulation algorithms for capturing and measuring real-time sky conditions for processing into control input signals to a building's automated fenestration (AF) system, daylight harvesting (DH) system and HVAC system. The photometer comprises a color camera and a fitted fish-eye lens to capture 360-degree, hemispherical, low dynamic range (LDR) color images of the sky. Both camera and lens are housed in a sealed enclosure protecting them from environmental elements and conditions. In some embodiments the camera and processes are controlled and implemented by a back-end computer.

Abstract: An electrochromic integrated glazing unit (IGU) comprises an electrochromic lite, a glass lite, a spacer, and a sealant. The electrochromic lite can have a first piece of carrier glass, a second piece of carrier glass, and an electrochromic device disposed between them, where the first and second pieces of carrier glass can be offset such that the first piece of carrier glass extends farther than both the second piece of carrier glass and the electrochromic device along a first edge of the electrochromic lite. A sealant can be disposed between the first piece of carrier glass and the glass lite along a first edge of the electrochromic IGU and further disposed between the second piece of carrier glass and the glass lite. An electrochromic laminated glass unit (LGU) with a similar electrochromic lite can contain one or more shear blocks disposed at a first edge of the electrochromic LGU.

Abstract: Multi-layer electrochromic structures, and processes for assembling such structures, incorporating a cross-linked ion conducting polymer layer that maintains high adhesive and cohesive strength in combination with high ionic conductivity for an extended period of time, the ion conducting polymer layer characterized by electrochemical stability at voltages between about 1.3 V and about 4.4 V relative to lithium, lithium ion conductivity of at least about 10?5 s/cm, and lap shear strength of at least 100 kPa, as measured at 1.27 mm/min in accordance with ASTM International standard D1002 or D3163.

Abstract: A method of manufacturing a thin film is provided. The method includes providing a plurality of crystalline hexagonal tungsten trioxide particles, size-reducing the crystalline hexagonal tungsten trioxide particles by grinding to produce crystalline hexagonal tungsten trioxide nanostructures, and coating the crystalline hexagonal tungsten trioxide nanostructures onto a substrate to produce a thin film. An electrochromic multi-layer stack is also provided.

Abstract: Automated control of an electrochromic device is described. A method includes receiving a first image captured from a first viewpoint of an electrochromic device. The method further includes identifying at least one of an obstructed portion of the first image or an unobstructed portion of the first image. The method further includes generating an obstruction map based on the at least one of the obstructed portion of the first image or the unobstructed portion of the first image. The method further includes determining, based on the obstruction map, a desired tinting state of the electrochromic device and causing a current tinting state of the electrochromic device to correspond to the desired tinting state.

Abstract: An electrochromic device is provided. The device includes a first transparent substrate and a second transparent substrate and a first electrically conductive layer and a second electrically conductive layer. A first bus bar is in contact with the first electrically conductive layer and a second bus bar in contact with the second electrically conductive layer. The first and second electrically conductive layers are patterned with sets of scribed lines substantially parallel to the corresponding bus bar, wherein the sets of scribed lines are made up of a series of collinear segments, which are gaps in the electrically conductive layer, wherein the length of the collinear segments, the period, the valve width and the offset between segments in adjacent scribed lines determines the resistance to the flow of electrons traversing a set of scribed lines in the direction substantially perpendicular to the corresponding bus bar.

Abstract: A monolithic tandem electrochromic device, comprising a central transparent conductor ion blocking layer, a first electrochromic multilayer stack arranged on a first surface of the central transparent conductor ion blocking layer, and a second electrochromic multilayer stack arranged on a second surface of the central transparent conductor ion blocking layer is described. The central transparent conductor ion blocking layer can comprise ion conductivities between 10?4 and 10?20 S/cm, and electrical resistivity less than 100 Ohm-cm.

Abstract: A multi-layer device comprising a first substrate and a first electrically conductive layer on a surface thereof, the first electrically conductive layer having a sheet resistance to the flow of electrical current through the first electrically conductive layer that varies as a function of position.

Abstract: A method of controlling smart windows with dynamic tenancy, performed by a control system is provided. The method includes coupling a control system having a plurality of smart windows each having one or more electrochromic devices, to a plurality of remote devices, and managing, in the control system, configurable smart window groups each having in membership one or more of the plurality of smart windows. The method includes managing, in the control system, configurable user groups each having in membership one or more of a plurality of users in association with the smart window groups, and controlling transmissivity of the electrochromic devices of the plurality of smart windows in accordance with the configurable smart window groups, the configurable user groups and the plurality of remote devices.