The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising the topical application to the skin of a cosmetic composition comprising a grafted polysaccharide polymer (I) and exposure of the treated skin to light radiation, polymer (I) being of formula:

PS—(CO—NH-L-X).sub.a(COOH)b

in which PS denotes the basic backbone of the polysaccharide bearing the carboxylic acid groups;
L is a divalent hydrocarbon-based group containing from 1 to 20 carbon atoms;
X denotes a photoactive group of azide or diazirine type;
a denotes the content of COOH groups substituted with the group —NH-L-X;
b denotes the content of unsubstituted free COOH groups;
a being between 0.01 and 0.8; b being between 0.2 and 0.99;
a+b=1

The invention also relates to the polymers (I) bearing a photoactive group X of diazirine type and to a composition comprising such a polymer in a physiologically acceptable medium.

A method for treating an eye condition of a user using at least one light source, the at least one light source having an output which is adjustable in at least one of spectrum shape, intensity, or duration, the method comprising: (a) obtaining information relating to an eye condition of the user; (b) determining a dose of light to treat the eye condition, the dose including one or more of a particular spectrum shape, a particular intensity, or a particular duration; and (c) causing the at least one light source to adjust the output to deliver the dose.

An optical filter which is used in an inactivation processing device that performs inactivation processing on a processing target microorganism. The optical filter, when discharge light from a light source in which the center wavelength of the discharge light is between 190 nm and 237 nm is incident at an incident angle 0°, transmits at least a portion of the ultraviolet ray equal to or greater than 190 nm and equal to or less than 230 nm and at least a portion of the ultraviolet ray greater than 230 nm and equal to or less than 237 nm, and attenuates the light intensity between 200 and 280 nm not including a wavelength region equal to or greater than 190 nm and equal to or less than 237 nm.

Certain exemplary embodiments of the present disclosure can provide an apparatus and method for generating at least one radiation can be provided. The exemplary apparatus and/or method can selectively kill and/or affect at least one virus. For example, a radiation source first arrangement can be provided which is configured to generate at least one radiation having one or more wavelengths provided in a range of about 200 nanometers (nm) to about 230 nm, and at least one second arrangement can be provided which is configured to prevent the at least one radiation from having any wavelength that is outside of the range can be provided or which can be substantially harmful to cells of the body.

This invention relates to a method, process and apparatus for disinfecting and sterilizing all types of surfaces contaminated with microorganisms and toxic substances to render both inactive. Furthermore, this invention relates to both a method and apparatus for disinfecting and/or sterilizing breathable air and then using this air to protect a confined space from external contamination. The apparatus consists of a new ultra-violet (NUV) source that is more effective than mercury based 254 nm light for destroying DNA of virus, bacteria, spores and cists. It is most effective in breaking chemical bonds in toxic gases and Biotoxins that are useful to terrorists. It is combined with other apparatus that remove particulates and byproducts sometimes produced by the NUV source and maintains positive pressure of the confined space so as to prevent the influx of air from outside the protected zone.

Antimicrobial films for generating singlet oxygen and their use is described. The antimicrobial films are generally thin films having two surfaces or faces. The first surface of the film is adhesive. Various adhesives, including, electrostatic charges, are possible. The second surface faces in a direction opposite from the first surface. The second surface of the film emits singlet oxygen when activated by light or ultrasound. Various photosensitizers can be incorporated onto the second surface of the films for generating the singlet oxygen. The singlet oxygen and other radical species generated from the antimicrobial films diffuses out from and in proximity to the films to form a layer or cloud of singlet oxygen at a concentration sufficient to inactivate microbial particles, e.g., viruses and other pathogens, that come within the singlet oxygen layer to provide a protective zone against microbial particles.

The present disclosure relates to a phototherapy device that can deliver light to tissues to activate photoactive agents that have been applied to the tissues or that are included within a fiber optic tip member of the device which may be coupled to a light source using a sleeve. The present disclosure also relates to methods of phototherapy using the phototherapy device such as anti-bactericidal treatment, anti-fungal treatment, anti-parasitic treatment, anti-viral treatment.

Phototherapy systems comprising a therapeutic lamp platform for radiant lamps such as LEDs disposed in an assembly comprising a first wall to which the lamps are affixed thereto and a second wall, closer to the patient, spaced from the first wall wherein the lamps are recessed relative thereto. The second wall comprises a reflective surface facing towards a patient and a plurality of light apertures substantially aligned with the LEDs on the first wall for communicating lamp radiation from the lamps to a user. The lamps and associated circuitry are disposed between the first and second wall so that the reflective surface is relatively smooth and seamless towards the patient. The walls may include an eye slot. The device is mounted to the user with a frame comprising an eyeglass frame or goggles including lenses for shielding the user's eyes from lamp radiation.

Lighting systems, methods, and devices for protecting human circadian neuroendocrine function during night use are described. Suitable lighting conditions can be provided for a working environment while protecting the circadian neuroendocrine systems of those occupying the illuminated workplace during the night. Lighting systems, methods, and devices can provide substantive attenuation of the pathologic circadian disruption in night workers. Lighting systems, methods, and devices can attenuate the specific bands of light implicated in circadian disruption. LED lighting systems, methods, and devices can provide increased intensity at a different portion of the spectrum than conventional LEDs, providing a useable white light even when unfavorable portions of the wavelength are attenuated by a notch filter. LED lighting systems, methods, and devices can switch between a daytime configuration and a night time configuration, wherein the daytime configuration provides unfiltered light and the night time configuration provides filtered light.

An assembly for photomedicine therapy comprising: (a) at least partially transparent body having an internal cavity; the internal cavity provided with input and output pipes configured for circulating a cooling agent via said internal cavity; and (b) at least one electrically energizable light source disposed within said internal cavity such that radiation from said at least one light source propagates to the ambient surroundings.