A method for the production of a lighting device for a motor vehicle, including a transparent tube which surrounds an optical fiber connectable to a light source is positioned on a holder in such a way that the tube comes in contact with the holder in at least one area, wherein the contact area between the tube and the holder is subjected to laser radiation so that the tube is welded to the holder by means of a welding process.

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

A light assembly including a light pipe and a plurality of light sources. The light pipe is an elongated, single, unitary piece having a generally linear light-exiting surface along one edge. The light pipe includes a plurality of lens portions along its length. Each lens portion forms a portion of the light existing surface. Each light source is associated with one of the lens portions to emit light into the lens portion and, therefore, the light pipe as a whole. The light from the light sources mixes within the light pipe before exiting the light pipe through the light-exiting surface in a generally linear pattern.

A vehicle, in particular road vehicle, luminous glazing unit includes a laminated glazing unit and a first light source at the periphery of the glazing unit, a luminous woven textile including warp yarns, weft yarns and optical fibers, the optical fibers being capable of emitting light sideways, the optical fibers protruding from a first edge face of the laminated glazing unit, and the light source is connected to the first free ends of the optical fibers. The woven textile has openings between the warp yarns, the weft yarns and the optical fibers, lets a fraction of the solar radiation through via the openings and has a clarity C of at least 75%. The luminous woven textile is in optical contact with the faces F2 and F3 of the glass panes of the laminated glazing unit.

A laser-based light source comprises a laser, an optical fiber, a conversion device, and a detector, the laser for emitting laser light with a laser peak emission wavelength, the optical fiber for guiding the laser light for being received at a first surface of the conversion device, the conversion device for converting at least a part of the laser light to converted light with a peak emission wavelength being longer than the laser peak emission wavelength, the optical fiber further for guiding a part of the converted light back in the direction of the laser and the detector for detecting at least a part of the back guided converted light. A vehicle headlight comprises such a laser-based light source, and a lighting system comprises such a vehicle headlight.

A system for generating light, comprises a spectral light source, characterized by a spectral line shape described by a visibility function; and a multimode waveguide, characterized by an optical path difference distribution described by a standard deviation. The standard deviation typically matches, within a predetermined tolerance, a location of a zero point of the visibility function at which a contrast of the visibility function is less than 0.1.

A mixed and distributed laser illumination system includes a source unit having an internally located power supply, a laser driver and a light generator. The light generator includes a plurality of laser diodes that are communicatively linked with the laser driver. The output of each laser diode is coupled to an individual cable that terminates at a fiber combiner. A transmission cable is in communication with the fiber combiner and transmits the light from the source unit to a fiber splitter. The fiber optic splitter distributes the received light to a plurality of output cables each having an optical diffuser or a conversion element for converting infrared to ultraviolet light.

Disclosed herein is a light transmissive fiber integrated knit textile for use on consumer electronic products. The knit textile is depicted to be constructed with light transmissive fibers integration through a weave-in/inlay knit technique with a flat-bed knitting construction. The light transmissive knitted textile is also tethered to a portable electronic device, allowing for the light transmitting fibers knitted into the fabric to define a lighting display on said fabric.

A light-emitting device includes a light source that outputs light, a light-guiding unit that guides the light from the light source to a predetermined position, and a heat-absorbing member that is disposed between the light source and the light-guiding unit and that absorbs some or all of heat of the light while allowing the light to pass through the heat-absorbing member.