A self-disinfecting device includes a housing with translucent material and an internal light source that is used to reduce surface pathogens on the translucent material. The device includes a processor and a light source positioned within the housing. At least a portion of the housing is translucent to radiation, and the light source emits radiation at a wavelength and an intensity that kills pathogens residing on the outer surface of the housing.

Light disinfecting systems are provided in which light emanating from an end or side of optical fibers is used to disinfect a target site. According to one implementation a light beam emanating from an end emitting optical fiber is directed into a body that includes a plurality of optical surfaces that are configured to direct at least a portion of the end emitted beam of bacterial disinfecting light to the target site. The assembly may further include a substrate coupled to the body, the substrate including one or more channels in which reside one or more radially emitting optical fibers that are configured to radially emit bacterial disinfecting light towards the target site, the substrate being at least partially transparent to the bacterial disinfecting light.

Disclosed are apparatuses and methods for irradiating a perfusate. The apparatus includes a tank which defines a first chamber. A separator is located inside the first chamber. The separator defines a second chamber. The first chamber and the second chamber are concentric and have substantially annular cross sections, each having at least one diameter and a substantially common longitudinal axis. A perfusate is introduced into the first chamber by an inlet. A UV radiation-emitting device is disposed inside the second chamber for providing irradiation to the perfusate. Irradiated perfusate is removed from the tank by an outlet. Other apparatuses and systems are described and methods for inactivating micro organisms by performing EVP and irradiating the perfusate.

Algorithm for controlling a photon pattern generated by means of a multicolour LED lighting system and inducing by means of said photon pattern a desired response in an organism, said algorithm being in a format executable by a control system of the multicolour LED lighting system and comprising instructions to cause said control system to operate LEDs of the multicolour LED lighting system to emit at least one predetermined varying photon pattern. The instructions define at least the following group of parameters for each varying photon pattern to be emitted: target location, intensity, duty cycle and wavelength band, and variations of at least one of said parameters over time. The instructions are such that the resulting varying photon pattern generated by means of the multicolour LED lighting system induces said desired response in said organism as a result of the combination of said defined parameters and the defined variations thereof.

Radiant energy control systems, methods, and apparatuses are provided. An example disinfecting LED lighting system nay include at least one light fixture disposed in or on a ceiling in an environment and configured to output a first light and a second light in which the first light and the second light are emitted from independent sources and operate independently, at least one sensor in communication with the at least one light fixture and configured to detect a characteristic of the environment, and a controller in communication with the at least one sensor and the at least one light fixture and configured to cause an event; wherein the event comprises an adjustment of the first light and/or an adjustment of the second light.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Sound suppression compartments may be placed around a UV-C generating device inlet and/or a device outlet to reduce sound from the UV-C generating device. Human perceivable (e.g., audible, tactile, and/or visual) notifications may be utilized to provide notification of different modes of operation and/or different efficacy levels (e.g., percent ranges of inactivation of a particular or multiple particular viruses, bacteria, spores, etc.

A solution for controlling mildew in a cultivated area is described. The solution can include a set of ultraviolet sources that are configured to emit ultraviolet and/or blue-ultraviolet radiation to harm mildew present on a plant or ground surface. A set of sensors can be utilized to acquire plant data for at least one plant surface of a plant, which can be processed to determine a presence of mildew on the at least one plant surface. Additional features can be included to further affect the growth environment for the plant. A feedback process can be implemented to improve one or more aspects of the growth environment.

A non-enclosing device for blocking viruses and bacteria, according to the present invention, comprises: a main body that can be attached/detached to/from the body of a user; and a blocking part provided at the main body so as to block droplets or aerosols from entering the respiratory system of the user. The present invention can provide the non-enclosing device for blocking viruses and bacteria, the device using diamagnetism and wind power so as to push droplets and aerosols away from the face of a user such that the entering of the droplets or aerosols into the respiratory system and the outward spreading of the droplets of the user are blocked, and emitting visible sterilization light, which is harmless to the human body, so that viruses and bacteria contained in droplets and aerosols are killed.

Systems, devices and methods for controlled intramedullary delivery of light (frequencies from about 380 nm to about 500 nm) to treat tissue or bones disorders, including osteomyelitis, by a flexible fiber are provided, where the light is delivered in a circumferential fashion around the fiber, and where the energy delivered from the fiber is of a similar average intensity at the front end and back end of the fiber, and in between. The methods and systems deliver intramedullary light to the canal over long lengths via a minimally invasive pathway to a bone. The methods and systems deliver and maintain a light delivery system within the canal of the bone to provide single or multiple doses of light to kill, eliminate, remove or reduce bacteria, viruses, fungus and pathogens, without removal of the light fiber system, thereby providing single or multiple treatments.

The present invention relates to a light-based sanitation device using a PCB-mounted motor. The device consists of a main body, a PCB arranged inside the main body, a power button in the handle area, and a light source unit in the head area. A vibration motor is attached to the upper end of the handle section and soldered to the PCB via soldering. A toothbrush head is fastened to the light source unit, with at least one toothbrush bristle formed using a waveguide. This configuration reduces noise, improves vibration stability, and enhances user convenience. The device also simplifies the manufacturing process by configuring the existing PCB with multiple or segmented structures into a single-piece structure, leading to cost reduction and potential improvements in productivity.