A lighting apparatus including at least two of first, second, and third light units, in which the first light unit includes a first LED emitting light having a peak wavelength in a range of 286 to 304 nm and a first wavelength converter, and to emit a portion of light from the first LED to the outside, the second light unit includes a second LED emitting light having a peak wavelength in a range of 400 to 420 nm and a second wavelength converter, and to emit a portion of light from the second LED to the outside, and the third light unit includes a third LED emitting light having a peak wavelength in a range of 286 to 470 nm and a third wavelength converter emitting light having a central wavelength in a range of 685 to 705 nm, 790 to 840 nm, or 875 to 935 nm.

A phototherapy device, a kit containing such a phototherapy device, and a method for treating a patient with a phototherapy device, the phototherapy device containing a housing, an emission portion, and a light tube, the housing containing a light source that emits light at a wavelength of from about 400 nm to about 550 nm, and may contain a light shield proximal to the light source, the emission portion being distal form the housing and connected thereto via a light tube which contains an optical fibre, and a mesh that may enclose the optical fibre and may allow a limited amount of light to leak from the optical fibre to the outside environment.

A biological lighting system to provide temporally- and spatially-modulated photon flux output and spectral power distributions to plants on a circadian and circannual basis, or circadian and life cycle basis, to maximize effective and efficient growth in a horticultural setting. The photon flux or irradiance output and the spectral power distribution are modulated to match circadian and circannual rhythms, with individual or multiple luminaires controlled through one or more controllers. Different lighting spectra can be employed depending on the direction of illumination. The photon flux or irradiance output and the spectral power distribution may be set as best suited for any particular plant species, and the system is also useful for raising animals.

A powder metallurgical molding forms an interconnector or an end plate for an electrochemical cell. The molding has a chromium content of at least 80% by weight, a basic shape of a plate and one or more flow fields with structuring formed on one or both of the main faces of the molding. A ratio of a maximum diameter D.sub.max of the molding, measured along the main face, to a minimum thickness d.sub.min of a core region of the molding which extends along the flow field or fields and is not affected by the structuring lies in a range of 140D.sub.max/d.sub.min350.

The invention helps treat the problem of our perception of our own holistic wellness, both physically, mentally and spiritually using accessibility, portability, form, senses and design to balance unbalanced thoughts and achieve more clear perception of ones self. Anchoring to this fundamental paradigm, using our wellness invention method, we create an experience that lends itself to restoring the user to a balanced state or to a specific desired outcome, or feeling. It achieves this by layering concepts (inclusive of theories, practices, ideas, beliefs) from several disciplines across all the senses. Here is presented a wellness device featuring an enclosed space suited to inducing a feeling of wellness in a patient feeling unbalanced.

Systems and methods for determining one or more temperatures within a phototherapy blanket use or include one or more temperature sensors and a set of light sources to determine a temperature of a subject undergoing phototherapy within the phototherapy blanket and estimate a core temperature of the subject based on, at least, the temperature. The phototherapy blanket may include a thicker region having a higher thermal insulation than one or more other regions of the phototherapy blanket. By virtue of measuring the temperature at or near the thicker region, the uncertainty in the relation between a temperature and the subject's core temperature may be reduced, for more accurate temperature determination within the phototherapy blanket.

Disclosed is a portable infrared physiotherapy instrument (10), comprising a shell (100), a power source (200), a fan (300), an infrared emission assembly (400) and a guide tube (500). The infrared emission assembly (400) comprises a fixing frame (410), and an electric heating wire (420) wound around the fixing frame (410), the electric heating wire (420) being capable of simultaneously generating visible light and heat after being energized, and the heat heating a rare earth coating on the outer surface of the electric heating wire, thereby changing the frequency range of the visible light so as to obtain infrared rays. The power source (200) drives the fan (300) to rotate so as to drive external air to enter the interior of the shell (100) from an opening of a first end of the shell (100) and form an air flow inside the shell (100), and the infrared rays and the heat are guided to the guide tube (500) under the action of the air flow and are discharged from one end of the guide tube (500). The instrument of the present invention is smaller in volume and convenient to carry, and can realize the directional emission of infrared rays and heat and has targeting properties, and the infrared rays and heat simultaneously generated by the electric heating wire (420) can go deep into the skin to perform deep heat therapy, and can effectively improve the effect of physiotherapy.

Lighting systems and methods for providing biologically optimized illumination throughout the day are disclosed. Systems and methods of providing LED light engines and associated illumination spectrums that are both visually appealing, rich in melanopic flux and that reduce blue light hazard exposure are disclosed. Embodiments of the invention relating to specific spectra of illumination containing high or low amounts of melanopic light, spectrally and spatially tunable LED lighting systems, programmed and automated controllers for temporally controlling bio-effective illumination, and dimming circuitry for tuning the spectral output of lighting devices are also disclosed.

The present disclosure provides a circadian rhythm correcting apparatus including a bio-illuminance measuring part configured to measure bio-illuminance of external light, a light source configured to irradiate light of a circadian wavelength band toward a retinal ganglion cell, a light source driver configured to drive the light source by supplying power to the light source, and a controller configured to control the light source driver on the basis of the bio-illuminance measured by the bio-illuminance measuring part, to correct the circadian rhythm.

Systems and methods are provided for controlling infrared radiation (IR) sources of a sauna including tuning IR wavelength-ranges and radiated power-levels of IR sources, and directing IR to locations on a user's body. In one illustrative embodiment, a sauna may be provided having adjustable IR emitters to emit IR at any wavelength resulting in a desirable radiation treatment for the sauna user. In another illustrative embodiment, a method is provided for tuning IR emitters in a sauna.