Abstract: Smoke detectors and smoke alarms are provided which have one or more light shields configured to block or minimize the transmission of ambient light to their light receivers. Light shield configurations for facilitating such functionality are provided as well. The shield/s include a material which attenuates a majority amount of light within a particular range of light that a light source of the smoke detector may be configured to only emit and/or the range of light the light receiver may configured to only convert to photocurrent. In some cases, the shield/s surrounds the light source and/or the light receiver arranged external to an interior chamber of the smoke detector. In some cases, the shield/s may at least partially span a connection side of an external housing of the smoke detector. Alternatively, the shield may be arranged in a space between the interior chamber and the connection side of the housing.

Abstract: Apparatuses are disclosed which include an ultraviolet light (UV) lamp and program instructions for activating an automated actuator such that the lamp is repositioned within the apparatus relative to a structure supporting the lamp while the lamp is emitting ultraviolet light. Other apparatuses include a reflector to redirect light emitted from a UV lamp, wherein the reflector and the lamp comprise a moveable assembly. The apparatuses include an actuator for moving the moveable assembly such that the lamp may be repositioned in and out of a structure supporting the moveable assembly. Yet other apparatuses include a reflector arranged along a longitudinal side of a UV lamp and a housing surrounding the lamp, wherein the reflector and the housing comprise a moveable assembly. The apparatuses include an actuator for providing rotational movement of the moveable assembly about a vertical axis and relative to a structure supporting the moveable assembly.

Abstract: Methods and systems are provided which project germicidal light from a lamp toward an individual donned in outerwear to disinfect the outerwear. In specific embodiments, germicidal light is projected toward an individual situated greater than approximately 1 foot from the light source. Some systems include sensor/s for detecting presence of an individual within a target area a set distance from the disinfection apparatus comprising the light source and program instructions for commencing operation of the disinfection apparatus based on information from the sensor/s. In addition or alternatively, some systems include reflective panel/s exhibiting greater than approximately 85% reflectance.

Abstract: Apparatuses are disclosed having an ultraviolet lamp and a reflector system arranged to project light emitted from the lamp to a region 2-4 feet from a floor of a room in which the apparatus is arranged. The apparatuses include a mobile carriage with wheels and one or more compartments underneath the lamp that hold operational components for the apparatus. The apparatuses are configured such that the lamp is not moveable beyond vertical planes aligned with a casing of the carriage. In some cases, a lowermost surface of the lamp is arranged at an elevation substantially level with or above an upper surface of the casing that is at least 36 inches above the floor of the room. In addition or alternatively, the carriage may include a handle exterior to its casing having an uppermost surface arranged at substantially the same level or lower than a lowermost surface of the lamp.

Abstract: Smoke detectors and smoke alarms are provided which have one or more light shields configured to block or minimize the transmission of ambient light to their light receivers. Light shield configurations for facilitating such functionality are provided as well. The shield/s include a material which attenuates a majority amount of light within a particular range of light that a light source of the smoke detector may be configured to only emit and/or the range of light the light receiver may configured to only convert to photocurrent. In some cases, the shield/s surrounds the light source and/or the light receiver arranged external to an interior chamber of the smoke detector. In some cases, the shield/s may at least partially span a connection side of an external housing of the smoke detector. Alternatively, the shield may be arranged in a space between the interior chamber and the connection side of the housing.

Abstract: Disinfection methods and apparatuses are provided which generate pulses of germicidal light at a frequency greater than 20 Hz and project the pulses of light to surfaces at least 1.0 meter from the disinfection apparatus. The pulses of light comprise a pulse duration and an energy flux sufficient to generate a power flux between approximately 200 W/m2 and approximately 5000 W/m2 of ultraviolet light in the wavelength range between 200 nm and 320 nm at the surfaces. Other disinfection methods and apparatuses are provided which generate pulses of light comprising germicidal light and visible light from a germicidal light source and generate pulses of light from a visible light source that is distinct from the germicidal light source. The projections of visible light from the light sources produce a continuous stream of visible light or a collective stream of visible light pulsed at a frequency greater than 60 Hz.

Abstract: Disinfection methods and apparatuses are provided which generate pulses of germicidal light at a frequency greater than 20 Hz and project the pulses of light to surfaces at least 1.0 meter from the disinfection apparatus. The pulses of light comprise a pulse duration and an energy flux sufficient to generate a power flux between approximately 200 W/m2 and approximately 5000 W/m2 of ultraviolet light in the wavelength range between 200 nm and 320 nm at the surfaces. Other disinfection methods and apparatuses are provided which generate pulses of light comprising germicidal light and visible light from a germicidal light source and generate pulses of light from a visible light source that is distinct from the germicidal light source. The projections of visible light from the light sources produce a continuous stream of visible light or a collective stream of visible light pulsed at a frequency greater than 60 Hz.

Abstract: Smoke detector shields for blocking or minimizing the transmission of light therethrough and methods for use are provided. According to one embodiment, a method for shielding a smoked detector includes shielding at least a portion of a smoke detector operationally arranged within a room, and subsequently activating a light emission device arranged within the room, while shielding the smoke detector. In order to exclude light emission devices, which are commonly used within a room for lighting and/or communication purposes, the light emission device set forth in the method is configured for generating infrared light at a radiant intensity greater than approximately 1 W/sr, and/or ultraviolet light at a radiant intensity greater than approximately 1 W/sr, and/or visible light at a luminous flux greater than approximately 3000 lumens. Embodiments of smoke detector shields that prevent such light from penetrating the housing of a shielded smoke detector are provided herein.

Abstract: Apparatuses having an ultraviolet light lamp are disclosed, where ultraviolet light is projected exterior to the apparatus and, in some embodiments, to a region 2-4 feet from a floor of a room in which the apparatus is arranged. In some cases, an apparatus includes a mobile carriage supporting the lamp and the apparatus is configured such that the lamp is not moveable beyond vertical planes aligned with a casing of the mobile carriage. Additional or alternative embodiments of apparatuses include a housing transparent to ultraviolet light surrounding the lamp and an exhaust duct extending from a gas outlet of the housing into a support structure that has an outlet disposed along its lower half portion or its bottom surface. Other embodiments of apparatuses include a pulsed ultraviolet light lamp and a sensor system to monitor and determine when to replace the pulsed lamp based on pulse count.

Abstract: Apparatuses are provided which include one or more germicidal sources, power circuitry coupled to the germicidal source/s, and a shield. The shield and/or at least one of the germicidal source/s are moveable within the apparatus and the apparatus is configured such that the shield and/or the germicidal source/s may be brought in and out of proximity with the other and upon doing so germicide projected from one or more of the germicidal source/s is either substantially contained in the apparatus or is projected exterior to the apparatus for different disinfection modes of the apparatus. The apparatuses include a processor and processor-executable program instructions for activating the power circuitry to operate the at least one germicidal source when the germicidal source is not encased within the apparatus and for activating the power circuitry to operate at least one germicidal source when the germicidal source/s are encased within the apparatus.

Abstract: The apparatuses disclosed herein include a discharge lamp configured to emit ultraviolet and visible light, an optical filter configured to attenuate visible light, and a power circuit configured to operate the discharge lamp. Some embodiments of the apparatuses are configured such that ultraviolet light emitted from the discharge lamp and passed through the optical filter encircles an exterior surface of the apparatus. Some cases of the apparatuses include a sensor system configured to monitor a first parameter associated with the operation of the discharge lamp and a second parameter associated with the transmittance of the optical filter. Some of the apparatuses include a means for moving the optical filter while the apparatus is in operation. In some cases, the apparatuses may be configured such that the optical filter may be arranged in and out of alignment with the discharge lamp. In some embodiments, the optical filter may be a multifaceted.

Abstract: Systems are disclosed which include processor-executable program instructions for receiving data regarding characteristics of a room in which one or more disinfection sources are arranged and determining, based on the received data, individual operating parameter/s for the one or more disinfection sources. Other systems are provided which include processor-executable program instructions for discerning, for each of a plurality of disinfection sources, a target location, region, object or surface within a room in which the disinfection sources are arranged. The systems further include program instructions for comparing the target locations/regions/objects/surfaces and executing corrective actions upon detecting two or more locations/objects/surfaces are within a predetermined distance of each other and/or upon detecting two or more regions overlap.

Abstract: Apparatuses are disclosed which include a discharge lamp configured to emit ultraviolet light, a power circuit configured to operate the discharge lamp, and a reflector system configured to redirect ultraviolet light emitted from the discharge lamp. In some embodiments, the apparatuses include a support structure containing the power circuit and supporting the discharge lamp. In some of such embodiments, the reflector system is configured to redirect ultraviolet light propagating away from the support structure to a region exterior to the apparatus and which is between approximately 2 feet and approximately 4 feet from a floor of a room in which the apparatus is arranged. In other embodiments, the reflector system may be additionally or alternatively configured to redirect ultraviolet light propagating away from the support structure to encircle an exterior surface of the apparatus. In any case, the reflector system may, in some embodiments, include a repositionable reflector.

Abstract: Apparatuses are provided which include one or more germicidal sources, power circuitry coupled to the germicidal source/s, and a shield. The shield and/or at least one of the germicidal source/s are moveable within the apparatus and the apparatus is configured such that the shield and/or the germicidal source/s may be brought in and out of proximity with the other and upon doing so germicide projected from one or more of the germicidal source/s is either substantially contained in the apparatus or is projected exterior to the apparatus for different disinfection modes of the apparatus. The apparatuses include a processor and processor-executable program instructions for activating the power circuitry to operate the at least one germicidal source when the germicidal source is not encased within the apparatus and for activating the power circuitry to operate at least one germicidal source when the germicidal source/s are encased within the apparatus.

Abstract: Curtains are provided which have fastener/s and, in some cases, strut/s arranged along a screen. The strut/s extend to elevation/s below and/or above the fastener/s. An upper strut may have a lower degree of stiffness than a lower strut. In some cases, the fastener/s are arranged at least 20 inches from the screen's upper edge. Systems are described which include a disinfection apparatus and any of such curtains. Other systems include any of such curtains attached to an edge of a room divider. Easily assembled and disassembled room dividers are described which include cord/s and/or pole/s, installed or portable device/s for supporting the cords/poles, and fasteners for attaching a curtain to the cords/poles. A disinfection apparatus is described which includes a shield extending to an elevation at least two feet above a germicidal light source and borders at least one third of a continuous region surrounding the germicidal light source.

Abstract: The apparatuses disclosed herein include a discharge lamp configured to emit ultraviolet and visible light, an optical filter configured to attenuate visible light, and a power circuit configured to operate the discharge lamp. Some embodiments of the apparatuses are configured such that ultraviolet light emitted from the discharge lamp and passed through the optical filter encircles an exterior surface of the apparatus. Some cases of the apparatuses include a sensor system configured to monitor a first parameter associated with the operation of the discharge lamp and a second parameter associated with the transmittance of the optical filter. Some of the apparatuses include a means for moving the optical filter while the apparatus is in operation. In some cases, the apparatuses may be configured such that the optical filter may be arranged in and out of alignment with the discharge lamp. In some embodiments, the optical filter may be a multifaceted.

Abstract: Apparatuses are disclosed which include a discharge lamp configured to emit ultraviolet light, a power circuit configured to operate the discharge lamp, and a reflector system configured to redirect ultraviolet light emitted from the discharge lamp. In some embodiments, the apparatuses include a support structure containing the power circuit and supporting the discharge lamp. In some of such embodiments, the reflector system is configured to redirect ultraviolet light propagating away from the support structure to a region exterior to the apparatus and which is between approximately 2 feet and approximately 4 feet from a floor of a room in which the apparatus is arranged. In other embodiments, the reflector system may be additionally or alternatively configured to redirect ultraviolet light propagating away from the support structure to encircle an exterior surface of the apparatus. In any case, the reflector system may, in some embodiments, include a repositionable reflector.

Abstract: Systems are provided which include a disinfection apparatus, a hollow chamber comprising an object entry port, and a means for tumbling objects placed inside the chamber. In some cases, the hollow chamber is configured such that a germicide projected from the disinfection apparatus is transmitted into an interior cavity of the chamber. In other cases, the hollow chamber may include an input port configured for coupling the chamber to the disinfection apparatus such that a germicide generated by the disinfection apparatus is transmitted into the hollow chamber via the input port when the chamber is coupled to the disinfection apparatus. In other cases, the disinfection apparatus may be disposed within the hollow chamber and configured to generate a germicide in the form of a plasma, ultraviolet light, a non-aqueous vapor, a non-aqueous liquid or a gas which is molecularly configured to deactivate or kill microorganisms.