An illumination system generating light having at least one wavelength within 200 nm a plurality of nano-sized structures (e.g., voids). The optical fiber coupled to the light source. The light diffusing optical fiber has a core and a cladding. The plurality of nano-sized structures is situated either within said core or at a core-cladding boundary. The optical fiber also includes an outer surface. The optical fiber is configured to scatter guided light via the nano-sized structures away from the core and through the outer surface, to form a light-source fiber portion having a length that emits substantially uniform radiation over its length, said fiber having a scattering-induced attenuation greater than 50 dB/km for the wavelength(s) within 200 nm to 2000 nm range.

Aspects of the present disclosure involve a transparent structure. The structure may include at least one light source, a transparent light-carrying guide layer optically coupled with the at least one light source. The structure may include refractive layers where a light absorbing feature is operably associated with the light-carrying guide layer to absorb any light not internally reflected in the light guide layer, at least adjacent the light source.

A flexible light guide that has a homogeneous light emission with high luminance is provided. The flexible light guide is provided by a side-emitting light guide. The side-emitting light guide includes a light-guiding fiber designed as a side-emitting fiber so that light guided in the fiber is scattered out along a longitudinal direction in a distributed manner. The guide also includes a tube that surrounds the fiber. The tube is designed to be light-scattering and translucent so that light emitted from the fiber can traverse the tube with scattering. The tube is surrounded by a cladding. The tube and cladding are made of plastic.

A system for the treatment of microorganisms includes: a textile web having optical fibers in warp and/or weft woven with binding threads in warp and/or weft, each of the optical fibers having invasive alterations along the fiber and allowing the emission of light propagating in the fiber at these alterations; a light source arranged opposite one or both free ends of the optical fibers. The textile web includes metallic warp and/or weft threads woven with the binding threads, the metallic threads being based on a metal having a negative effect on the growth of microorganisms. The light source generates a light beam having at least one wavelength in the visible or ultraviolet spectrum.

An illuminated trim fitting for a motor vehicle, in particular a trim fitting as a cover fitting of a sealing strip for the window channel of a vehicle door, is intended to provide a high-quality illuminating effect accompanied at the same time by a simple structural design, low manufacturing costs and space-saving means of attachment. In addition, the trim fitting is to differ as little as possible externally from non-illuminated trim fittings. For this purpose there is provision that a light gap is formed between a profiled strip of the trim fitting and the adjacent vehicle outer skin, through which light gap the light emitted by an optical waveguide provided on the rear of the trim fitting can exit to the outside.

Disclosed is an electronically-controlled automatic light-shading device, comprising a first glass substrate, a light-shading coating, a polarizing element and a second glass substrate. An image module and a photosensitive element adjacent thereto are embedded in the first glass substrate. The first glass substrate has a first surface on the opposite side to an external light source. The light-shielding coating is applied on the first surface. The polarizing element is disposed on the light-shielding coating. The second glass substrate has a second surface facing the first surface. A plurality of spacers in contact with the polarizing element are disposed on the second surface, and an optical fiber element is disposed in each spacer.

An optical member includes a first light guide member having an elongated shape and comprising an end surface and a lateral surface extending in a longitudinal direction from the end surface; and a wavelength conversion layer disposed on the lateral surface of the first light guide member and containing a phosphor.

A light guide extending in a main direction and including an inlet face for the light emitted by a light source, the inlet face being contoured to form a collimator. The light guide includes a face for guiding the light, a light outlet face, and a face for decoupling the light towards the outlet face, the decoupling face being transversely opposite to the outlet face. At least one portion of the profile of the inlet face is constant in a transverse direction so as not to collimate the light in a longitudinal plane including the transverse direction but in a longitudinal plane perpendicular to the transverse direction.

A light-emitting composite stone includes a transparent stone; a first light guide; a mounting member; an edge stone on one side of the transparent stone; a second light guide being adjacent to an inner surface of the edge stone and perpendicular to the first light guide; a light-emitting member on a bottom of the second light guide; an inclined cut on the second light guide; a first reflection member having an inclined angle of 45-degree on a bottom of the inclined cut; first and second vertical light guides; a second reflection member on a top of the first vertical light guide; a horizontal light guide between tops of the first and second vertical light guides; a third reflection member on an inner surface of a top of the second vertical light guide; and a fourth reflection member on the horizontal light guide.

An assembly for redirecting light emitted by an end-emitting optical fiber into an inner lumen of a body is provided. According to one implementation, the body includes one or more surfaces disposed on or in the body onto which the light is configured to impinge when the end emitting optical fiber is activated, the one or more surfaces being configured to alter the trajectory of the light so that the light is directed to impinge on a light reflector of a cap removably attached to the body, the light reflector of the cap being configured to redirect the light distally into the inner lumen of the body.