Abstract:
An apparatus can include a control device configured to select a scene from a collection of scenes for a window including electrochromic devices in response to receiving an input corresponding to state information. In another aspect, a method of operating an apparatus can include receiving an input corresponding to state information; and at a control device, in response to receiving the input, selecting a scene from a collection of scenes. The collection of scenes may be validated before using the scenes. The scenes may be validated based on physical configuration of the controlled space, preferences of the occupant, or the like. Still further, scenes can be changed to allow for the passage of time or an illusion of changing sky conditions when sky conditions are not changing. The apparatus and method can be simpler to understand and implement as compared to complex control strategies.
Abstract:
An apparatus can include an electrochromic device configured to be maintained a continuously graded transmission state. When using the apparatus, the electrochromic device can be switched from a first transmission state to a continuously graded transmission state and maintained in the continuously graded transmission state. The current during switching can be higher than current during maintaining the continuously graded transmission state. In an embodiment, the grading can be reversed to provide a mirror image of the grading. In another embodiment, at least 27% and up to 100% of the electrochromic device can be in a continuously graded transmission state. The control device can be located within an insulating glass unit, adjacent to the insulating glass unit, or remotely from the insulating glass unit. In a further embodiment, a gap between bus bars can be used to form a portion of the electrochromic device that can be continuously graded.
Abstract:
A laminate can include a first panel and including a first transparent substrate having a first refractive index. The laminate can further include a second panel and a third panel, each coupled to the first panel. The second panel includes a second transparent substrate having a second refractive index, and the third panel includes a third transparent substrate having a third refractive index. The laminate can further include a fill material disposed within a gap between the second and third panels and having a fill material refractive index. The fill material refractive index is within 0.09 of the second refractive index, the third refractive index, or a value between the second and third refractive indices. Coupling may be direct or may be achieved with an adhesive film. The fill material can help to reduce the likelihood of seeing seams between the second and third panels.
Abstract:
An apparatus is disclosed. The apparatus can include a first conductive layer, a second conductive layer, and an active stack between the first conductive layer and the second conductive layer. The active stack can include an electrochromic material. The apparatus can further include a first bus bar electrically coupled to the first conductive layer and a second bus bar electrically coupled to the second conductive layer, where the active stack, the first bus bar, and the second bus bar are completely between the first conductive layer and the second conductive layer.
Abstract:
A method can be used to control the operation of one or more non-light-emitting, variable transmission devices. In an embodiment, a method of operating a plurality of non-light-emitting, variable transmission devices can include receiving requests for requested visible transmittance for the non-light-emitting, variable transmission devices; determining operating parameters for the non-light-emitting, variable transmission devices; and operating the non-light-emitting, variable transmission devices at the operating parameters, wherein the operating parameters for the non-light-emitting, variable transmission devices are different. In another aspect, the method can include operating the non-light-emitting, variable transmission device at a first operating parameter for a time period, wherein the operating parameter corresponds to an intermediate visible transmittance; generating a characterization parameter based at least part on the voltage and current measurements that are obtained during the time period; and controlling the non-light-emitting, variable transmission device period based at least in part on the characterization parameter.
Abstract:
A method of controlling an electroactive device can include operating the electroactive device at an operating parameter for a first period of time, applying a switching voltage having a first magnitude and a first polarity to the electroactive device for a second period of time, and applying a step-wise overshoot voltage having a second magnitude and a second polarity to the electroactive device for a transition period of time. The first magnitude can be greater than the second magnitude, and the first polarity can be the same as the second polarity. The method can also include applying a reverse overshoot voltage having a third magnitude and a third polarity to the electroactive device. The third polarity can be the opposite the second polarity.
Abstract:
A glazing can include a substrate having a viewable area contained within a boundary, and an electrochromic device coupled to the substrate. The electrochromic device can have a tintable area spaced apart from the boundary of the viewable area along at least 5% of the boundary. The tintable area can have a tintable surface area, AED, the viewable area of the substrate has a surface area, AVA, and AED can be less than AVA. A central portion of the viewable area can include a number of layers of material, a peripheral portion can include a number of layers of material, and the number of layers at the central portion can be greater than the number of layers at the peripheral portion.
Abstract:
An insulated glazing unit can include a spacer frame disposed between a first substrate from a second substrate and forming a portion of a sealed boundary and a flexible circuit extending through the sealed boundary. In an embodiment, the flexible circuit includes a flexible ribbon having a total length, LA, and an effective length, LE, and wherein LE is less than LA. In another embodiment, the flexible circuit includes an expandable portion adapted to expand a length of the flexible circuit to accommodate: relative movement between two or more portions of the insulated glazing unit, resizing of one or more portions of the insulated glazing unit, or any combination thereof.
Abstract:
A glazing including an electrochromic component and a coating coupled to the electrochromic component. In an embodiment the coating includes a non-transparent element. In a further embodiment, the non-transparent element includes a plurality of non-transparent elements. In another aspect, a method of displaying an image includes providing an electrochromic component and a coating coupled to the electrochromic component and projecting the image onto the coating from a light emitting source.