Abstract:
A switching material comprising one or more than one polymers and an electrolyte comprising a salt and a solvent portion comprising one or more solvents; and one or more compounds having electrochromic and photochromic properties dispersed homogeneously through the switching material; and wherein the switching material is transitionable from a light state to a dark state on exposure to UV light and from a dark state to a light state with application of an electric voltage.
Abstract:
A switching material comprising one or more than one polymers and an electrolyte comprising a salt and a solvent portion comprising one or more solvents; and one or more compounds having electrochromic and photochromic properties dispersed homogeneously through the switching material; and wherein the switching material is transitionable from a light state to a dark state on exposure to UV light and from a dark state to a light state with application of an electric voltage.
Abstract:
A compound according to Formula IA and IB, reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer A and a ring-closed isomer B is provided. For substitutent groups, Z is N, O or S; each R1 is independently selected from the group consisting of H, or halo; each R2 is independently selected from the group consisting of H, halo, a polymer backbone, alkyl or aryl; or, when both R2 together form -CH=CH- and form part of a polymer backbone; each R3 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl; each R4 is aryl; and each R5 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl.
Abstract:
A control system (10) for a variable transmittance optical filter assembly (46) includes a controller (48) in communicatively coupled to a pair of load terminals (45), and a memory (49) communicatively coupled to the controller (48) and having encoded thereon statements and instructions executable by the controller (48) to transition the optical filter assembly (46) between operating states when coupled to the pair of load terminals (45). The controller is operable to maintain the optical filter assembly (46) at a certain transmittance value between lower an upper transmittance thresholds in a hold mode by applying a pulse width modulated voltage signal (30) across the load terminals (45).
Abstract:
An optical filter comprising a variable transmittance layer having a first spectrum in a dark state, and a second spectrum in a faded state; and a color balancing layer having a third spectrum; each of the first, second and third spectra comprising a visible portion; the first and third spectra combining to provide a dark state spectrum approximating a dark state target color, and the second and third spectra combining to provide a faded state spectrum approximating a faded state target color. The optical filter may further comprise a light attenuating layer. The optical filter may further comprise part of a laminated glass.
Abstract:
A switching material comprising one or more than one polymers and an electrolyte comprising a salt and a solvent portion comprising one or more solvents; and one or more compounds having electrochromic and photochromic properties dispersed homogeneously through the switching material; and wherein the switching material is transitionable from a light state to a dark state on exposure to UV light and from a dark state to a light state with application of an electric voltage.
Abstract:
A compound according to Formula IA and IB, reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer A and a ring-closed isomer B is provided. For substitutent groups, Z is N, O or S; each R1 is independently selected from the group consisting of H, or halo; each R2 is independently selected from the group consisting of H, halo, a polymer backbone, alkyl or aryl; or, when both R2 together form —CH═CH— and form part of a polymer backbone; each R3 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl; each R4 is aryl; and each R5 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl.