Abstract: Proposed is a light-emitting apparatus 200,300,400, comprising a semiconductor light emitting device 220,320,420 and a transparent ceramic body 230,330,430 comprising a wavelength converting material positioned in light receiving relationship to the semiconductor device. The light-emitting apparatus is characterized in that the side surfaces 233,333,433 of the ceramic body 230,330,430 are at an oblique angle 234,334,434 relative its bottom surface 231,331,431. This is especially advantageous to unlock the wave-guide modes inside the body 230,330,430. Consequently the total flux emitted from the light-emitting apparatus 200,300,400 can be enhanced considerably. Alternatively, the brightness of the top surface 232,332,432 of the ceramic body 230,330,430 can be enhanced considerably.

Abstract: A system comprises means (PL; MI) for projecting an image light beam (ILB) on a projection area (PA) for display of an image (PI) on the projection area (PA), and means (1) for generating an ambient light beam (ALB; ALB1, ALB2) and comprising: an ambient light source (LS; LS1, LS2) for generating ambient light, a collimator (CO) or a light-guide (LG1, LG2) for receiving the ambient light to supply the ambient light beam (ALB; ALB1, ALB2), and a reflector (RF; RF1, RF2) for reflecting the ambient light beam (ALB; ALB1, ALB2) towards the projection area (PA) to obtain an ambient lighting area (ALI) adjacent the image (PI).

Abstract: A light source comprising a light engine (10), especially with at least one LED and/or at least one laser light emitting element, and further comprising a light guide (11) and an out-coupling structure (12) is proposed. By this, a flexible scheme to tailor the source size and radiation characteristic of an LED- or laser based system is provided. The size and the position of the out-coupling structure (12) can be chosen to be comparable to the size and position of the filament or arc of a conventional light source like an incandescent-, halogen- or gas discharge burner. The disclosed LED/laser light source is retrofit from an optical point of view so that it can replace a conventional light source like an incandescent-, halogen- or gas discharge bulb or burner in an illumination device.

Abstract: A front projector (FP) comprises an image generating device (DP) which generates an image in accordance with an input display signal (IDS). A projection lens (PL) projects the image to obtain a projected image (PL) on an projection area (IPA). At least one light source (LS1, LS2; L1, L2, L3) generates at least one ambient light beam (ALB1, ALB2) which is projected via said same projection lens (PL) to obtain an ambient light image (ALI1, ALI2) at least partly flanking said projected image (PI).

Abstract: An LED lamp system with a plurality of LED elements is described. The system comprises a chamber (1) with a plurality of inner side wall faces and a radiation opening (4) for the emission of light. The inner side wall faces are each formed predominantly from a plurality of LED radiation surfaces (3a, 3b).

Abstract: An LED lamp system with a plurality of LED elements is described. The system comprises a chamber (1) with a plurality of inner side wall faces and a radiation opening (4) for the emission of light. The inner side wall faces are each formed predominantly from a plurality of LED radiation surfaces (3a, 3b).

Abstract: An LED lamp system with a plurality of LED elements is described. The system comprises a chamber (1) with a plurality of inner side wall faces and a radiation opening (4) for the emission of light. The inner side wall faces are each formed predominantly from a plurality of LED radiation surfaces (3a, 3b).

Abstract: The present invention relates to a light emitting diode (LED) device (10) comprising (a plurality of LED chips (12) placed on a substrate, and a plurality of light guiding elements (16, 36) each having and an entrance window (24) and an exit window (26) wherein the elements are arranged for allowing light from at least one LED chip to be transferred from the entrance window to the exit window, and wherein the elements are further arranged so that said exit windows form several inner side surfaces (20) of a cavity (22), which cavity further has an exit aperture (30) for allowing extraction of light from the device. This configuration allows for a high brightness LED device.

Abstract: A system comprises means (PL; MI) for projecting an image light beam (ILB) on a projection area (PA) for display of an image (PI) on the projection area (PA), and means (1) for generating an ambient light beam (ALB; ALB1, ALB2) and comprising: an ambient light source (LS; LS1, LS2) for generating ambient light, a collimator (CO) or a light-guide (LG1, LG2) for receiving the ambient light to supply the ambient light beam (ALB; ALB1, ALB2), and a reflector (RF; RF1, RF2) for reflecting the ambient light beam (ALB; ALB1, ALB2) towards the projection area (PA) to obtain an ambient lighting area (ALI) adjacent the image (PI).

Abstract: Proposed is a light-emitting apparatus 200,300,400, comprising a semiconductor light emitting device 220,320,420 and a transparent ceramic body 230,330,430 comprising a wavelength converting material positioned in light receiving relationship to the semiconductor device. The light-emitting apparatus is characterized in that the side surfaces 233,333,433 of the ceramic body 230,330,430 are at an oblique angle 234,334,434 relative its bottom surface 231,331,431. This is especially advantageous to unlock the wave-guide modes inside the body 230,330,430. Consequently the total flux emitted from the light-emitting apparatus 200,300,400 can be enhanced considerably. Alternatively, the brightness of the top surface 232,332,432 of the ceramic body 230,330,430 can be enhanced considerably.

Abstract: An illumination device comprising a light source (2), an electro-wetting based optical element (1, 10), arranged in front of the light source to allow refraction of a beam of light emitted from said light source, and driving means (9) arranged to operate said optical element between at least two predefined states, said states being adapted to result in refracted beams having different light intensity distribution. According to this design, the electrowetting based optical element can be used to dynamically alter the light intensity distribution of the illumination device between a number of predefined states.

Abstract: The invention relates to a lighting device (101) comprising a blue light source, e.g. an LED (102), combined with a wavelength converting ceramic (106) and a collimating optical component (110). The ceramic (106) is mechanically carried by the optical component (110), for example by a glue or by insert moulding. Intermediate gaps between the light source (102) and the converter (106) are preferably filled with a material like silicone.

Abstract: The present invention relates to an illumination system having an array of differently coloured LEDs, a plurality of collimators, wherein each collimator holds at least one LED, a light mixing element, arranged to mix light generated by the LEDs into a mixed light that is emitted from the illumination system, and a control system for controlling the colour balance of the mixed light. The control system comprises a detector, which is placed among said collimators and encircled by a light shield. The detector detects a fraction of the mixed light that is reflected at an exit window of the mixing element. In this structure the detected light twice passes the mixing element, which provides for a proper mixing of the different colours as well as a proper homogenisation of the light.

Abstract: The invention relates to an LED light system (1) for generating directed illumination radiation. The system comprises a plurality of LED lamp elements (2), each comprising a collimator (10) with an LED element (9). The LED lamp elements (2) are arranged in a defined array for generating a specified luminance pattern. A secondary optics device (11) images the luminance pattern in the space to be illuminated.

Abstract: An illumination system has a plurality of light-emitting diodes (R, G, B), at least one light-collimating section (12,12?) arranged along a longitudinal axis (25) of the illumination system. The light-collimating sections merges into a light-mixing section (3) having a plurality of side-faces along the longitudinal axis (25). Light propagation in the light-mixing section is based on total internal reflection. The light-mixing section is provided with a light-exit window (13) emitting light towards an imaginary projection surface normal to the longitudinal axis.

Abstract: The present invention relates to a light emitting diode (LED) module (10) comprising a substrate (12) having plural indents (14) and flattish portions (20) in between the indents, and LEDs (16) mounted in the indents. The LED module is characterized by at least one of sensors (22) and additional LEDs (32) provided at the flattish portions. This allows increased sensor detection accuracy and/or color compensation. The present invention also relates to a method for the manufacturing of such an LED module.

Abstract: The invention relates to an LED lamp system comprising at least one LED element (4) for emission of light, a chamber (1) with inner sidewall faces (2), which are designed to be at least partially highly reflective, with a light entrance face (3) for the emitted light and with an exit opening (6) for the light radiated into the chamber (1) and reflected from the inner side wall faces (2), and a collimator (7), which is arranged at the exit opening (6) of the chamber (1) and which has an outcoupling opening (9) facing said exit opening.

Abstract: The present invention relates to a light emitting diode (LED) device (10) comprising (a plurality of LED chips (12) placed on a substrate, and a plurality of light guiding elements (16, 36) each having and an entrance window (24) and an exit window (26) wherein the elements are arranged for allowing light from at least one LED chip to be transferred from the entrance window to the exit window, and wherein the elements are further arranged so that said exit windows form several inner side surfaces (20) of a cavity (22), which cavity further has an exit aperture (30) for allowing extraction of light from the device. This configuration allows for a high brightness LED device.

Abstract: A light source comprising a light engine (10), especially with at least one LED and/or at least one laser light emitting element, and further comprising a light guide (11) and an out-coupling structure (12) is proposed. By this, a flexible scheme to tailor the source size and radiation characteristic of an LED- or laser based system is provided. The size and the position of the out-coupling structure (12) can be chosen to be comparable to the size and position of the filament or arc of a conventional light source like an incandescent-, halogen- or gas discharge burner. The disclosed LED/laser light source is retrofit from an optical point of view so that it can replace a conventional light source like an incandescent-, halogen- or gas discharge bulb or burner in an illumination device.

Abstract: The invention relates to a road illumination system for forming a low beam in traffic applications comprising a light source and a reflecting surface formed by a multiplicity of reflector segments arranged around a central optical axis. According to the invention, the light source emits light over an angle of at most 180° in a direction facing away from the intersection of the central optical axis and the reflecting surface and the reflector segments are parabolically-shaped and have a segment optical axis parallel to the central optical axis, while the reflector segments are positioned such that the segment optical axis substantially intersects with an edge of the light source. Preferably, the illumination system is provided on poles (5, 5?, . . . ) or on a crash barrier adjacent the traffic lanes 1. Alternatively, the illumination system is a vehicle headlamp. Preferably, the light source (13) is a (white) lightemitting diode.