Patent application number | Description | Published |
20120182764 | INDOOR ILLUMINATION SYSTEM - A lighting system for an indoor room or space is designed to provide a diffuse, glare free source that illuminates the room from the cornice, or a similar location around the join between the walls and ceiling. This may be achieved via a direct source of illumination at the cornice location, or by projecting illumination from a remote source. The lighting system is further designed to allow for illumination of certain areas of the cornice, and hence the room, whilst leaving other parts dark. There are multiple advantages of an adaptable system such as this, but in particular the lighting conditions can be adjusted for optimum lighting levels, for example dimming selected areas when viewing a television. | 07-19-2012 |
20120287669 | BACKLIGHT, AND DISPLAY HAVING A BACKLIGHT - A display backlight comprises a light guide plate ( | 11-15-2012 |
20120298178 | PHOTOVOLTAIC SYSTEM FOR EFFICIENT SOLAR RADIATION COLLECTION AND SOLAR PANEL INCORPORATING SAME - A concentrated photovoltaic system includes a photovoltaic cell; a primary light concentrating optic; and a secondary light mixing concentrator. The primary light concentrating optic is arranged to collect solar radiation and concentrate the collected solar radiation towards the secondary light mixing concentrator. The secondary light mixing concentrator is arranged to concentrate the concentrated solar radiation from the primary light concentrating optic towards the photovoltaic cell. The secondary light mixing concentrator includes a dielectric member having first and second primary surfaces, with the second primary surface being in optical contact with the photovoltaic cell and the first primary surface facing the primary light concentrating optic. The first primary surface has a non-planar surface structure configured to redirect light which is reflected at transitional surfaces between the secondary light mixing concentrator and the photovoltaic cell back towards the photovoltaic cell. | 11-29-2012 |
20130320863 | LIGHTING DEVICE AND A LIGHTING SYSTEM - A lighting device comprises a plurality of light sources ( | 12-05-2013 |
20140029279 | HEADLIGHT SYSTEM INCORPORATING ADAPTIVE BEAM FUNCTION - A light source system comprising projection optics, which are capable of producing a far-field image of a light source. The light source comprises a fluorescent medium that when illuminated by light from laser emitters of a first waveband emits light of a second or more wavebands of longer wavelength. The resulting light emission produces a colour perceived as white. The light source is illuminated by a plurality of laser emitters arranged to illuminate the light source in an array-like manner. Control of the output of one or more of the laser emitters results in a variation of the spatial emission distribution from the light source and hence a variation of the far-field beam spot distribution. Further, fine variation of the far-field beam spot distribution may be achieved by re-direction of the laser beams by separate control methods. | 01-30-2014 |
20140029280 | HEADLIGHT SYSTEM INCORPORATING ADAPTIVE BEAM FUNCTION - A light source system comprising a projection lens, which is capable of producing a far-field image of a light source. The light source comprises a photoluminescent material that when illuminated by light from laser emitters of a first waveband emits light of a second or more wavebands of longer wavelength. The resulting light emission produces a colour perceived as white. The light source is illuminated by a plurality of laser emitters arranged to illuminate the light source in an array-like manner from the front side. Control of the output of one or more of the laser emitters results in a variation of the spatial emission distribution from the light source and hence a variation of the far-field beam spot distribution via non-mechanical means. An optical system is arranged to image light emitted from the photoluminescent material into the far-field, which optical system comprises a converging lens. | 01-30-2014 |
20140029281 | LIGHT SOURCE FOR AN AUTOMOTIVE HEADLIGHT WITH ADAPTIVE FUNCTION - A light source system operable in at least first and second modes to provide at least and first and second different far field illumination patterns, the system comprising: a photoluminescent material; and a light beam generator for generating, in the first mode, a first set of light beams for illuminating respective first regions of the photoluminescent material and for generating, in the second mode, a second set of light beams for illuminating respective second regions of the photoluminescent material, the first and second sets of light beams being independently controllable. In the first mode, the light beam generator generates the first set of light beams such that a first beam of the first set of light beams illuminates a first illumination region of the photoluminescent material having one side that is inclined with respect to another side of the illumination region. | 01-30-2014 |
20150176810 | LIGHTING DEVICE AND METHOD FOR PROVIDING LIGHT - A lighting device includes a transparent optical cavity having an exit surface including a specularly reflective material arranged to reflect light into the cavity, the exit surface having a plurality of apertures formed therein, a base surface including a specularly reflective material arranged to reflect light into the cavity, and at least one light receiving surface arranged relative to the base surface and configured to receive light from a light source. The plurality of apertures are arranged to maximize at least one of uniformity, angular distribution, efficiency or luminous intensity of light exiting the exit surface, and a distribution of light received at the light receiving surface is altered by at least one of a combination of the exit surface and the base surface, or the light receiving surface. | 06-25-2015 |