A manufacturing method for a light modulating device includes preparing a first laminated body including a first glass sheet, preparing a second laminated body in which a second glass sheet, a second interlayer, and a light modulating cell are laminated, and bonding the first laminated body and the second laminated body.

An insulative construction product includes a polyurethane foam core and a mixture of Aerogel and carbon black that is disposed within the polyurethane foam core. The mixture of Aerogel and carbon black includes between 90 and 99 weight percent Aerogel and between 1 and 10 weight percent carbon black. The polyurethane foam core includes between 10 and 90 percent by volume of the of Aerogel and carbon black mixture and the construction product has an R-value of at least 8.0 R/inch.

A displayed light-adjustment device includes two light-transmitting layers which are arranged oppositely, a display module, and an adjustable light-shading layer. The display module is stacked between the light-transmitting layers. The adjustable light-shading layer is interposed between the first light-transmitting layer and the display module, and the light transmittance of the adjustable light-shading layer is adjustable. When the adjustable light-shading layer is powered off, the light transmittance of the adjustable light-shading layer is greater than 75%, and when the adjustable light-shading layer is powered on, an ultraviolet resistance value of the adjustable light-shading layer is greater than 99%.

Infrared cloud detector systems and methods for detecting cloud cover conditions.

The method comprises determining that the clear day exists in response to the apparent diameter of the solar disc being similar to the expected diameter of the solar disc on the clear day and determining that an overcast condition exists in the camera image in response to the apparent diameter of the solar disc being distorted. The method may further include receiving a camera image of a sky section from a camera at a first location; segmenting the camera image into a first portion around a known position of a solar disc and a second portion of the remainder of the sky section containing an horizon; determining that the solar disc is obstructed by the horizon; and establishing that the first location is experiencing shadow conditions based on the determining.

This disclosure provides systems, methods, and apparatus for controlling transitions in an optically switchable device. In one aspect, a controller for a tintable window may include a processor, an input for receiving output signals from sensors, and instructions for causing the processor to determine a level of tint of the tintable window, and an output for controlling the level of tint in the tintable window. The instructions may include a relationship between the received output signals and the level of tint, with the relationship employing output signals from an exterior photosensor, an interior photosensor, an occupancy sensor, an exterior temperature sensor, and a transmissivity sensor. In some instances, the controller may receive output signals over a network and/or be interfaced with a network, and in some instances, the controller may be a standalone controller that is not interfaced with a network.

In one aspect, a method, system, and/or computer program product is described for generating a graphical user interface for providing information and controlling optically switchable windows connected by a network. Windows are graphically represented using interactive smart objects that are placed within views of the graphical user interface in a manner corresponding to their physical location. In another aspect, a method, system, and/or computer program product is described for associating network IDs of optically switchable windows with the locations at which the windows are installed. Window locations are determined by analyzing received wireless transmissions that are sent from transmitters associated with each of the optically switchable windows. The determined locations are then compared with a representation of the building that provides the window locations. Upon comparison, the network ID of each window, which is communicated through the window transmissions, is associated with the appropriate window location on the representation of the building.

Intelligent building control systems utilize sky information from a camera or cameras to facilitate control of building systems such as lighting, motorized window coverings, electrochromic glazings, HVAC systems, and so forth. Based on the sky information, interior lighting intensity and/or color temperature may be modified, for example in order to achieve a desired circadian effect for building occupants. In this manner, energy efficiency and occupant comfort and convenience are improved.

Intelligent building control systems utilize sky information from a camera or cameras to facilitate control of building systems such as lighting, motorized window coverings, electrochromic glazings, HVAC systems, and so forth. Based on the sky information, interior lighting intensity and/or color temperature may be modified, for example in order to achieve a desired circadian effect for building occupants. In this manner, energy efficiency and occupant comfort and convenience are improved.

A load control system automatically controls the amount of daylight entering a building through at least one window of a non-linear façade of the building. The load control system comprises at least two motorized window treatments located along the non-linear façade, and a system controller. The controller is configured to calculate an optimal position for the motorized window treatments at each of a plurality of different times during a subsequent time interval using at least two distinct façade angles of the non-linear façade, such that a sunlight penetration distance will not exceed a maximum distance during the time interval. The controller is configured to use the optimal positions to determine a controlled position to which both of the motorized window treatments will be controlled during the time interval and to automatically adjust each of the motorized window treatments to the controlled position at the beginning of the time interval.