Abstract: The combined color of a color tunable and intensity adjustable light source can be quantitatively described using the chromaticity diagram. With a preset color, or dominant wavelength, and daily light interval, the microprocessor in this plant growing system can compare the calculated chromaticity diagram data from the corresponding sensor with this preset color value and fine tune the combined color until these two are matched. The microprocessor then can control the lighting time according to daily light interval setting. The system can then automatically control the color and photon numbers. The same control method and algorithm can be used in general lighting system as well.

Abstract: A germicidal lighting system may include a directional germicidal light source for emitting a beam of germicidal light. The directional germicidal light source can include LEDs mounted to either side of a heat sink connected to a concave mirror. The directional germicidal light may be mounted movably with respect to a structure, which can in turn be movable. The directional germicidal light source may be moved and oriented relative to surfaces to be irradiated using the motion relative to the structure or the motion of the structure. The directional germicidal light source may be moved to scan a surface to smooth out dosage. Dosage may also be controlled using sensors to monitor the dosage applied.

Abstract: A germicidal lighting system uses far-UVC lamps emitting frequencies that do not harm humans, for example 222 nm. The presence of a person is detected using sensors, and the far-UVC lamps are turned on when a person is present and off when no one is present. This may be applied to a person's whole body or, for example, a hand or hands. A far-UVC optical system for a germicidal lighting system may include a wavelength selective mirror arranged to receive far-UVC light from a far-UVC light source and to disproportionately reflect the far-UVC light in at least one wavelength of the far-UVC light relative to at least another wavelength of light emitted by the far-UVC light source. A far-UVC light source may be placed in a reflective enclosure to direct light through an opening. Facial recognition may be used to control the frequency a single person uses the system.

Abstract: A germicidal lighting system uses far-UVC lamps emitting frequencies that do not harm humans, for example 222 nm. The presence of a person is detected using sensors, and the far-UVC lamps are turned on when a person is present and off when no one is present. This may be applied to a person's whole body or, for example, a hand or hands. A far-UVC optical system for a germicidal lighting system may include a wavelength selective mirror arranged to receive far-UVC light from a far-UVC light source and to disproportionately reflect the far-UVC light in at least one wavelength of the far-UVC light relative to at least another wavelength of light emitted by the far-UVC light source. A far-UVC light source may be placed in a reflective enclosure to direct light through an opening. The reflective enclosure or a mirror to which the light is directed may be rotated.

Abstract: An excimer lamp, which includes a first lamp cap, a second lamp cap, a first electrode head, a second electrode head, a conductive heat dissipation rod, a light-transparent annular sleeve, and a conductive annular net. The heat dissipation rod and conductive annular net are respectively connected to the first and second electrode heads to excite an excimer gas in the light-transparent annular sleeve. Inside the excimer lamp the, a large amount of heat can be conducted and dissipated through the conductive heat dissipation rod, and then through the heat dissipation of the first lamp cap or by heat conductive annular rings between sections of the lamp. At the same time, the conductive annular nets can also conduct and dispatch a large amount of above mentioned heat; the heat may be further conducted and dispatched through the second lamp cap or through the heat conductive annular rings, if present.

Abstract: An excimer lamp, which includes a first lamp cap, a second lamp cap, a first electrode head, a second electrode head, a conductive heat dissipation rod, a light-transparent annular sleeve, and a conductive annular net. The heat dissipation rod and conductive annular net are respectively connected to the first and second electrode heads to excite an excimer gas in the light-transparent annular sleeve. Inside the excimer lamp the, a large amount of heat can be conducted and dissipated through the conductive heat dissipation rod, and then through the heat dissipation of the first lamp cap or by heat conductive annular rings between sections of the lamp. At the same time, the conductive annular nets can also conduct and dispatch a large amount of above mentioned heat; the heat may be further conducted and dispatched through the second lamp cap or through the heat conductive annular rings, if present.

Abstract: A smart lock system that includes a smart lock that electronically locks and unlocks a door and a server that outputs a command to the smart lock to lock or unlock the door via the internet in response to an instruction received via the internet from a user device. The user device may also (simultaneously) directly transmit an instruction to the smart lock (e.g., via Bluetooth). The user device may also directly transmit an instruction to the smart lock to unlock the door in response to a determination that the user device is within a predefined geofenced region around the smart lock. The smart lock may also include a keypad. The smart lock may also include a camera that captures images and output those images to the server for transmittal to the user device. The smart may also include a motion sensor and capture images in response to detected motion.

Abstract: A germicidal lighting system may include a directional germicidal light source for emitting a beam of germicidal light. The directional germicidal light may be mounted movably with respect to a structure, which can in turn be movable. The directional germicidal light source may be moved and oriented relative to surfaces to be irradiated using the motion relative to the structure or the motion of the structure. The directional germicidal light source may be moved to scan a surface to smooth out dosage. Dosage may also be controlled using sensors to monitor the dosage applied.

Abstract: An LED lighting system is provided for connection to a variable power source providing input power, the LED lighting system having at least one power analyzing and processing circuitry connecting to the variable power source, and being configured to identify one or more characteristics of the input power, where the characteristics are selected from amplitude, frequency and pulse width of the input power, compare one or more of the characteristics of the input power to preset control criteria either in hardware or software or both to yield a comparison result, and then control the current control circuitry according to the comparison result.

Abstract: An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal. The signal can be provided intermittently and a carrier wave also provided and modulated at the same time as the signal. When the signal is not being produced, the power on the power line may be power that is allowed to flow without manipulation from an external portion of the power line.

Abstract: A novel pillow is provided to easily adjust its height by pulling a lever on the side of the pillow to activate the air control valve configured to personalize the head support needed for that individual. Pulling the lever to a fully open position creates a larger air passage to the inflatable bladder and activates an air pump for rapid inflation of the pillow so as to increase its height. With a user head laying over the pillow, pulling a lever slightly opens up a smaller opening suitable for gradual deflation of the pillow and reducing its height caused by the pressure generated by the head. Soft comfort portion on top of the pillow enclosed in a stretchable fabric reduces surface tension and creates a softer feeling for the user thereby improving comfort and consequently sleep quality. An altimeter may be incorporated with the bladder to easily monitor sleep patterns of the user.

Abstract: An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal.

Abstract: An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal. The signal can be provided intermittently and a carrier wave also provided and modulated at the same time as the signal. When the signal is not being produced, the power on the power line may be power that is allowed to flow without manipulation from an external portion of the power line.

Abstract: The present invention surrounds an apparatus and method for the use in injection molding of articles of manufacture using an injection molding apparatus having a valve-gate pin or a plurality of valve-gate pins for actuation to extend and retract from a cavity within an injection mold. The valve-gate pin may have a retention feature or retention features configured for the retention of molded parts such that the retraction or extension of the valve-gate pin provides part removal from an associated injection mold. Further, the valve-gate pin may have a feature or features to facilitate the injection of fluids, gases or particles during or after the primary injection process. Additionally, a plurality of such valve-gate pins may be employed within each mold cavity, or within each valve-gate actuation system.

Abstract: Electrical switch devices are installed at in-wall electrical boxes of a building. Each device features a switch module with multiple electrically controlled switches for respective connection of multiple load circuits. A control panel with a user interface is mountable over the electrical box and is connected or connectable to the switch module. A communications transceiver of each device is operable to transmit and receive communications to and from each of the other devices. The control panel has a touch-screen display, and is configured to display virtual on-screen switches, including at least one virtual switch whose output is assigned to a respective one of the electrically controlled switches of the other devices. The at least one virtual switch at one device is thereby operable to control at least one load at another of said devices. User selected names are assignable to the switches, and used to label the virtual switches.

Abstract: The present patent document discloses filters and methods of filtering bucket wash water by stacking identical filters in a rotated position. In preferred embodiments, the method comprises: placing a first filter in a bucket; placing an identical second filter on top of the first filter wherein: the second filter is rotated by a radial angle with respect to the first filter and a first pair of tapered passages on the second filter that are longer than typical passages on the second filter are inserted into a second pair of tapered passages on the first filter such that a typical passage on the second filter is held above the first filter and a typical passage on the second filter does not axially align with a typical passage on the first filter.

Abstract: An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal. The signal can be provided intermittently and a carrier wave also provided and modulated at the same time as the signal. When the signal is not being produced, the power on the power line may be power that is allowed to flow without manipulation from an external portion of the power line.

Abstract: A novel pillow is provided to easily adjust its height by pulling one or both levers of a unique double-lever air valve. Pulling a first lever opens up a smaller opening suitable for gradual deflation of the pillow and reducing its height under a pressure of a user head laying over the pillow. Pulling both levers together activates an electrically driven air pump to rapidly inflate the pillow through a larger opening so as to increase its height.