A device for interfering with the optical navigation capability of an organism moving in air, comprising at least a detector, a projector and a control device connected to the detector and the projector, which is characterized in that using the detector a biological feature of an organism may be identified by way of at least a signal, wherein the control device then determines the trajectory of the organism and, in dependence on the species and trajectory of the organism, indicates a light pattern, which may be projected using the projector.

The combination of infrared light, ultraviolet light and near ultraviolet or blue light has been found to repel insects, and particularly flying insects. Electric lights powered by batteries, solar cells or line voltage are arranged in mutual proximity on virtually any desired substrate to repel insects and prevent insects from closely approaching and landing around the substrate. In one example, the substrate can take the form of an article of clothing, such as a hat.

The combination of infrared light, ultraviolet light and near ultraviolet or blue light has been found to repel insects, and particularly flying insects. Electric lights powered by batteries, solar cells or line voltage are arranged in mutual proximity on virtually any desired substrate to repel insects and prevent insects from closely approaching and landing around the substrate. In one example, the substrate can take the form of an article of clothing, such as a hat.

Lighting fixture data hubs and systems and methods for use. An example of a data hub may include an annunciator configured to generate a first indication and a second indication, one or more sensors configured to detect between one or more vehicles and one or more pedestrians and potential convergence thereof within a zone in a vicinity of the data hub and to emit one or more signals corresponding to said detection, and a gateway in communication with an on-board processor and the annunciator, the on-board processor configured to wirelessly receive and analyze the one or more signals, communicate said one or more signals to the gateway so that the gateway can generate the first indication or the second indication in response to the one or more signals. Data hubs may also include a sensor unit housing and/or a light source.

A method of repelling mosquitos from a locality or proximity where humans or animals will be present and/or inhibiting the mosquito from seeking a blood meal, may include positioning lighting at a location and in an orientation that will at least one of generate a photo-taxis repellent response and inhibit blood seeking by the mosquito, such that the mosquito at least one of (i) may be discouraged from entering a defined zone which the lighting protects, and (ii) may have a reduced tendency to seek a blood meal within the zone. The lighting may be LED lighting and may generate an intense light of at least 100 lux, with a colour temperature of greater than 5000K and may have a cool white spectra with two peaks, a first peak at about 450 nm-470 nm and a second peak at about 500 nm-700 nm.

A method of repelling mosquitos from a locality or proximity where humans or animals will be present and/or inhibiting the mosquito from seeking a blood meal, may include positioning lighting at a location and in an orientation that will at least one of generate a photo-taxis repellent response and inhibit blood seeking by the mosquito, such that the mosquito at least one of (i) may be discouraged from entering a defined zone which the lighting protects, and (ii) may have a reduced tendency to seek a blood meal within the zone. The lighting may be LED lighting and may generate an intense light of at least 100 lux, with a colour temperature of greater than 5000K and may have a cool white spectra with two peaks, a first peak at about 450 nm-470 nm and a second peak at about 500 nm-700 nm.

A solar-powered ground plug repelling device, comprises: a casing assembled by a face cover and a bottom housing, a PCBA arranged in the casing, and a ground pipe, wherein a sliding groove assembly is provided on a surface of the bottom housing connected with the ground pipe and comprises two sliding grooves parallel to each other; a sliding rail assembly is provided on an end of the ground pipe connected to the bottom housing and comprises two sliding rails respectively movably connected to the two slide grooves, two electrode elastic sheets connected to the PCBA are provided in the casing, a connecting surface of the electrode elastic sheet protrudes from a perforation in a bottom plate of the bottom housing; and the device comprises two electrode thimbles connected with the sliding rail assembly, and ends of the electrode thimbles are exposed from a surface of the slide rail assembly.

A method for treating pest infestation of crops includes withholding all light from the crops and, during the withholding, applying a burst of ultraviolet light to the crops. A method for reducing pests includes turning off all lighting arranged to apply growth light to the crops, applying a burst of ultraviolet light to the crops and turning on the lighting arranged to apply growth light to the crops. A system for treating pest infestation of crops includes a plurality of ultraviolet light sources and a controller configured to energize the ultraviolet light sources to apply a burst of ultraviolet light to the crops.

This disclosure relates to methods and systems for repelling one or more fish eating predators (4) from a fish-containing area (6) within a sea, fjord, river or lake, wherein a moving image of a predator (18) of the one or more fish eating predators (4) is provided at and/or near a boundary of the fish-containing area (6).

This disclosure relates to methods and systems for repelling one or more fish eating predators (4) from a fish-containing area (6) within a sea, fjord, river or lake, wherein a moving image of a predator (18) of the one or more fish eating predators (4) is provided at and/or near a boundary of the fish-containing area (6).