Provided is an internal window system, including: a plurality of sheet members having different functions; and a window frame body for laminating and holding the plurality of sheet members. The plurality of sheet members may have at least 2 different functions among light emission, light dimming, heat shielding, heat insulating, ultraviolet UV shielding, heat generation, solar power generation, electromagnetic wave shielding, visual display function, visual monitor function or visual screen function.

The present invention relates to a blind blade assembly for solar photovoltaic power generation including solar cells installed on one side thereof to enable solar photovoltaic power generation. In the blind blade assembly of the present invention, solar cells are provided in a prefabricated form, allowing the solar cells to be replaced and repaired individually. The blind blade assembly for solar photovoltaic power generation according to the present invention includes a blade frame 210 provided with a mounting groove 211; a plurality of solar cell panels 220 disposed in the longitudinal direction in the mounting groove 211; and fixing members 230 for connecting electrodes 223 between the solar cell panels 220 and for fixing seams.

The window treatment includes a top member, a shade unit, and an outdoor temperature indication arrangement. The top member is adapted for mounting at a ceiling of the window frame. The shade unit is downwardly suspended from the top member and being moved between a closed position and an opened position, wherein at the closed position, the shade unit is moved for covering the window glass to control an amount of light in a space, and at the opened position, the shade unit is moved for uncovering the window glass. The outdoor temperature indication arrangement is formed with the shade unit for indicating an outdoor temperature when the shade unit is moved at the closed position.

Various embodiments described herein relate to a self-contained, self-regulating intelligent automated window treatment with increased energy efficiency. In at least one embodiment, the window treatment consists of: (1) a headrail; (2) a tube located within the headrail; (3) a motor located within the headrail, preferably within the tube; (4) window treatment fabric with one terminus of the fabric affixed to the tube within the headrail, and with the fabric extending from the tube and out from the headrail; (5) a smart bottom rail attached to the terminus of the shade fabric furthest from the tube with the bottom rail containing, at least one sensor, at least one control button, and a battery that provides power to the sensor(s) and control button(s), and wherein the smart bottom rail communicates with the motor in the headrail. Types of sensors used may include environmental sensors, motion sensors, and inertial sensors. In another embodiment of the invention, the battery in the bottom rail may be a rechargeable battery. In a further embodiment, the bottom rail may contain at least one solar panel, which may be used to provide charge to the rechargeable battery. In another embodiment of the invention, the headrail further consists of a solar panel and a rechargeable battery that may be charged by the solar panel. In a further embodiment solar power stored in the rechargeable battery of the bottom rail may be transferred to the rechargeable battery-powered motor of the headrail.

Various implementations relate generally to multi-sensor devices. Some implementations more particularly relate to a multi-sensor device including a ring of radially-oriented photosensors. Some implementations more particularly relate to a multi-sensor device that is orientation-independent with respect to a central axis of the ring. Some implementations of the multi-sensor devices described herein further include one or more additional sensors. For example, some implementations include an axially-directed photosensor. Some implementations also can include one or more temperature sensors configured to sense an exterior temperature, for example, an ambient temperature of an outdoors environment around the multi-sensor. Additionally or alternatively, some implementations include one or more of an infrared sensor or infrared sensors, a cellular communication circuit, and a GPS module.

The present invention relates to a self-contained, self-regulating intelligent automated window treatment with increased energy efficiency consisting of: (1) a headrail; (2) a tube located within the headrail; (3) a motor located within the headrail, preferably within the tube; (4) window treatment fabric with one terminus of the fabric affixed to the tube within the headrail, and with the fabric extending from the tube and out from the headrail; (5) a smart bottom rail attached to the terminus of the shade fabric furthest from the tube with the bottom rail containing, at least one sensor, at least one control button, and a battery that provides power to the sensor(s) and control button(s), and wherein the smart bottom rail communicates with the motor in the headrail. Types of sensors used may include environmental sensors, motion sensors, and inertial sensors. In another embodiment of the invention, the battery in the bottom rail may be a rechargeable battery. In a further embodiment, the bottom rail may contain at least one solar panel, which may be used to provide charge to the rechargeable battery. In another embodiment of the invention, the headrail further consists of a solar panel and a rechargeable battery that may be charged by the solar panel. In a further embodiment solar power stored in the rechargeable battery of the bottom rail may be transferred to the rechargeable battery-powered motor of the headrail.

An insulated glass unit (IGU) characterized by a transmitted IGU color (a*.sub.IGU;b*.sub.IGU) includes a photovoltaic structure characterized by a first transmitted color (a*.sub.1;b*.sub.1) and a low emissivity structure characterized by a second transmitted color (a*.sub.2;b*.sub.2). The first transmitted color and the second transmitted color are complementary.

Described herein are systems, methods, devices, and other techniques for implementing smart windows, smart home systems that include smart windows, and user devices and applications for control thereof. A smart window, or photovoltaic window, may include a photovoltaic configured to generate electrical power from incident light onto the photovoltaic window, store the electrical power, and send the electrical power to an electronics package or various electrical loads including a wireless communication system, sensors, or window functions. The photovoltaic window may communicate with various smart home system devices such as hub devices and user devices, which may include the reception of control data at the photovoltaic window and the transmission of sensor data captured by the window sensors.

Described herein are systems, methods, devices, and other techniques for implementing smart windows, smart home systems that include smart windows, and user devices and applications for control thereof. A smart window, or photovoltaic window, may include a photovoltaic configured to generate electrical power from incident light onto the photovoltaic window, store the electrical power, and send the electrical power to an electronics package or various electrical loads including a wireless communication system, sensors, or window functions. The photovoltaic window may communicate with various smart home system devices such as hub devices and user devices, which may include the reception of control data at the photovoltaic window and the transmission of sensor data captured by the window sensors.

A system can comprise a first window pane configured at a first position in a semitransparent and uniform structure. The system can also include a first substrate configured with a first transparent conductive oxide (TCO) contact layer, a hole transport (HTL) layer and a first perovskite layer, wherein the first TCO contact layer, the HTL layer, and first perovskite layer are positioned at a set distance away from the first window pane in the semitransparent and uniform structure. The HTL layer includes oxides, or iodides, or organic materials. Further, the system can include a second substrate directly opposite to the first substrate, and configured with a second TCO contact layer, an electron transport (ETL) layer, and a second perovskite layer, wherein the first perovskite layer and the second perovskite layer are fused together in the semitransparent and uniform structure. The ETL layer includes oxides or organic materials. In addition, the system can include a second window pane configured at a second position, wherein the second window pane is configured directly opposite to the first window pane, and around the first and second substrate in the semitransparent and uniform structure.