Abstract: A lighting device includes a light guide having a light output surface, one or more LED packages having two or more spatially separated LED chips, and two or more wavelength dependent modification features located on the output surface of the light guide. Each wavelength dependent modification features is configured to modify the intensity of light from one or more of the LED chips to provide homogeneous colored light.

Abstract: An illuminated eyewear device is described. The illuminated eyewear device comprises a transparent substrate and one or more light sources mounted around the perimeter of the transparent substrate. The output of the one or more light sources is arranged to be coupled into, and propagates within, the transparent substrate. Applied to an inner surface of the transparent substrate are a plurality of refractive light scattering means designed to break the condition for total internal reflection of the light generated by the one or more light sources. As well as being mobile, compact and easy to integrate into everyday life, the above described illuminated eyewear device address the known problem of glare experienced by users of those devices known in the art since the light sources are not directly imaged into the user eye.

Abstract: An illuminated eyewear device is described. The illuminated eyewear device comprises a transparent substrate and one or more light sources mounted around the perimeter of the transparent substrate. The output of the one or more light sources is arranged to be coupled into, and propagates within, the transparent substrate. Applied to an inner surface of the transparent substrate are a plurality of refractive light scattering means designed to break the condition for total internal reflection of the light generated by the one or more light sources. As well as being mobile, compact and easy to integrate into everyday life, the above described illuminated eyewear device address the known problem of glare experienced by users of those devices known in the art since the light sources are not directly imaged into the user eye.

Abstract: A light guiding device and in particular to a light guiding device that can be used for illumination, backlighting, signage or display purposes is described. The light guiding device comprises a transparent base substrate, upon a first surface of which are mounted light sources, and a guide substrate arranged so as to encapsulate the light sources upon the first surface. In this way the guide substrate provides a means for guiding light produced by the one or more light sources over the first surface. The incorporation of scattering structures along with appropriate choice of the refractive indices of the various layers provides a highly flexible light guiding device that is typically less than 1 mm thick. The described light guiding device provides particular application as a seven segment display.

Abstract: A light guiding device and in particular to a light guiding device that can be used for illumination, backlighting, signage or display purposes is described. The light guiding device comprises a transparent base substrate, upon a first surface of which are mounted light sources, and a guide substrate arranged so as to encapsulate the light sources upon the first surface. In this way the guide substrate provides a means for guiding light produced by the one or more light sources over the first surface. The incorporation of scattering structures along with appropriate choice of the refractive indices of the various layers provides a highly flexible light guiding device that is typically less than 1 mm thick. The described light guiding device provides particular application as a seven segment display.

Abstract: A light guiding device (1) and in particular to a light guiding device that can be used for illumination, backlighting, signage or display purposes is described. The light guiding device (1) comprises a transparent base substrate (2), upon a first surface of which are mounted light sources (3), and a guide substrate (4) arranged so as to encapsulate the light sources (3) upon the first surface. In this way the guide substrate (4) provides a means for guiding light produced by the one or more light sources over the first surface. The incorporation of scattering structures (5) along with appropriate choice of the refractive indices of the various layers provides a highly flexible light guiding device that is typically less than 1 mm thick. The described light guiding device (1) provides particular application as a seven segment display.