Abstract: It is provided a luminaire kit of parts (100) for assembling a luminaire. The luminaire kit of parts (100) comprises light sources (107a-b) and light out-coupling devices (105a-b), The luminaire kit of parts (100) further comprises a light guiding element (101), the light guiding element (101) being configured to receive at least a subset of the light sources (107a-b) and at least a subset of the light out-coupling devices (105a-b) into a first type of 5 openings (103a-c) and a second type of openings (104a-b) respectively. It is also provided a method for assembling a luminaire.

Abstract: A lighting device (100, 200, 300, 400) is disclosed. The device comprises a plurality of light sources (111, 119, 120, 211, 219, 220) providing light in different wavelengths, a collimating means (104, 204) having a receiving end (103, 203, 407) and an output end (114, 214, 409), wherein said light sources are arranged at said receiving end.

Abstract: A display device comprising a light guide (12), a front plate (14), and an intermediate electromechanically operable foil (16). Two electrode layers (22, 23) are arranged on either side of the foil (16) to induce electrostatic forces on the foil (16) and to bring selected portions of the foil into contact with the light guide (12), thereby extracting light from the light guide (12). The second electrode layer (22) is arranged on the opposite side of the light guide (12) with reference to the foil (16), and separated from the light guide (12) by means of a refractive layer (28). As no electrode layer is required on the light guide itself, the light path of rays extracted from the light guide is cleaner, and the absorption of light is reduced. The light guide can have a thickness such that the light extracted from the light guide per unit length is sufficient to allow for line-at-a-time addressing.

Abstract: A light-emitting device, comprising at least a first light source (101) and a second light source (102) is provided. The light source further comprises a first collimating means (111) for collimating light from the first light-source and a second collimating means (112) for collimating light from said second light source wherein the output areas of the collimating means at least partly overlaps. A light guiding means (107) is arranged between said light sources and said collimating means for guiding light from the first light source to the first light collimating means, and from the second light source to the second collimating means. A light-emitting device of the present invention can provide well mixed and collimated light even though there is a distance between the light sources and the collimating means.

Abstract: A light-emitting device (100) is provided, comprising four light sources (101, 102, 103, 104) and a collimating element (105) for collimating and mixing the light from the light sources. The light-collimating element comprises three V-shaped profile surfaces (110, 120, 130) arranged with their edges (115, 125, 135) towards the light sources. The V-shaped profile surfaces are provided with dichroic filters that transmits light from the light sources that they are arranged in front of, and reflects light from the remaining light sources. Such a device is capable of collimating and mixing the light from the four light sources, such that essentially the same degree of collimation is achieved for all four light sources.

Abstract: The present invention relates to a light emitting device (1) comprising a stack of a light emitting diode (LED) structure (10) and a light permeable device (20). The light permeable device (20) comprises at least a first and a second section (21, 22), color of light from said first and second section (21, 22) being different from each other. Further, the LED structure (10) comprises at least a first and a second region (11, 12) being individually controllable. The first and second region (11, 12) are associated with the first and second section (21, 22), respectively. The stack further comprises an at least partially reflecting layer (30) arranged such that light from the light permeable device (20), generated in the first and second region (11, 12), is to be mixed within the light emitting device (1).

Abstract: The present invention provides a light collimating structure (102) comprising a first collimator (131) collimating light of a first property and at least one second collimator (141) collimating light of a second property, where the receiving areas (132, 142) of the collimators at least partly overlap and where the output areas (133, 143) of the collimators partly overlap. The at least two collimators act essentially independently from each other. Hence, the collimators can be positioned independently from each other, in order to provide good collimation for each of the light sources of the lighting unit. Further, the collimators may be designed independently from each other such that a good light mixing is obtained.

Abstract: A high efficiency lighting system (100) is described that has a small etendue. This can be used, for example, for backlighting a display device such as a liquid crystal display (LCD), projection displays, as well as for general lighting purposes. A portion of the light from a light emitting device die (101) falls onto a fluorescent material (105,106), such as phosphor. Dichroic mirrors (107,109) prevent the light generated by the fluorescent material to return to the light-emitting device. The mirrors may also provide collimation of the generated light and the remainder of the light from the light-emitting device. In this way a high efficiency system is realized because little or no generated light is absorbed and the generated light does not have to travel through a fluorescent material layer and thus has a high chance to go in the desired direction.

Abstract: Proposed is a light emitting apparatus (1) comprising a light source (5) for emitting light and a collimator (40) for arranging the light emitted in an application specific distribution. The light source comprises (i) a semiconductor device (10) capable of emitting light, (ii) a body (20) having a bottom surface (21) adjacent to the semiconductor device (10) and an opposing top surface (22), and (iii) a reflector (30) positioned adjacent the top surface (22). The light emitting apparatus (1) is characterised in that the reflector (30) has a surface larger than the bottom surface (21) of the body (20). This is especially advantageous for creating a given light beam collimation with a smaller collimator or alternatively for creating a collimator producing a significantly narrower light beam.

Abstract: The invention relates to alightsource and an illumination system. The light source (10) comprises a light emitter (20) and a light conversion element (30). The light emitter emits visible light of a first color through the light conversion element in a direction away from the light source. The light conversion element comprises a photoluminescent material (40) for converting at least a part of the light of the first color into light of a second color different from the first color. The light source further comprisescon-version material (42) for converting at least a part of ambient light impinging on the conversion material into light of a third color (Ba) different from the second color. When the light emitter emits light, the color of the light emitted is mainly a mixture of the light of the first color and light of the second color.

Abstract: The present invention provides a lighting device, comprising a first light guide adapted to guide light and output the light in a first direction; a second light guide adapted to guide light and output the light in another, second direction; a dividing structure adapted to receive light from a light source and guide the light into the first light guide and into the second light guide, wherein the dividing structure comprises controllable dividing means for guiding a first percentage of the light from the light source into the first light guide, and a second percentage of the light from the light source into the second light guide.

Abstract: The invention provides a method of illuminating a 3D object 10 with a modified 2D image of the 3D object 10. Further, the invention provides a dedicated projector 40 for performing this method. This projector 40 further comprises an image sensor 60 to capture a 2D image of the object, which may, after modification into the modified 2D image, be projected by the projector 40 on the 3D object 10.

Abstract: The present invention relates to an illumination system (200) including a first sub-system (205) comprising a first set (201) of at least two differently colored light sources where the first set (201) has a first spectral distribution, and a first light mixing device (203) arranged in a direction of emission of light from the first set of light sources and configured to mix light emitted by the first set of light sources. The illumination system further includes a second sub-system (206) comprising a second set (202) of at least two light sources where the second (202) set has a second spectral distribution, and a second light mixing device (204), also arranged in a direction of emission of light from the second set of light sources and configured to mix light emitted by the second set of light sources.

Abstract: A display apparatus comprising a display device (104, 200, 301, 401) configured to display an image is disclosed. The display device comprises a plurality of picture elements, and one or more lenticular means (203). The lenticular means comprises one or more refracting layers (303, 403) configured to direct light emanating from said picture elements in a plurality of directions such that said image of a picture element is divided in two or more essentially identical images.

Abstract: A projection display device comprising an illumination module (100; 200; 301) and at least one projection lens (304) for projecting light from said illumination module (301) onto a projection screen (305) is provided. The illumination module (100) comprises at least two lighting units (103, 104), each comprising of a light emitting diode (113, 114) and a collimating funnel (130, 140) arranged in front thereof. The output areas (132, 142) of the two funnels are at least partly overlapping. Hence, light collimation and mixing is possible in the same structure, yielding an etendue conserving illumination module.

Abstract: The invention relates to an illumination system (10) for illuminating a display device, and to the display device. The illumination system comprises a light distribution element (20 for distributing light across the display device. The light distribution element comprises a light output window (40), a rear wall (42) situated opposite the light output window, and edge walls (44, 46) extending between the light output window and the rear wall, at least one of the edge walls comprising a light input window (48) for admitting light into the light distribution element. The light distribution element further comprises specularly reflective light-outcoupling means (50) for specularly reflecting light from the light distribution element towards the display device via the light output window. A first light beam (100) comprises light of a first primary color (R) impinging on the light input window for coupling the light of the first primary color into the light distribution element.

Abstract: A light guide (11; 101; 111) comprising first and second oppositely arranged faces, an in-coupling portion (13a-f) for in-coupling of light from a light-source (12a-f; 95a-f; 102; 106a-c; 112a-f), and an out-coupling portion (15a-f; 103; 113a-f) located adjacent to the in-coupling portion (13a-f). The out-coupling portion (15a-f; 103; 113a-f) is configured to out-couple a primary light beam having a direction of propagation directed from a position in the in-coupling portion (13a-f) with a lower out-coupling efficiency than a secondary light beam having a direction of propagation directed from a position in the light guide (11; 101; 111) outside the in-coupling portion (13a-f). In this manner, a good mixing of light in the light guide can be achieved without imposing any particular requirements on the collimation of the in-coupled light.

Abstract: An optical separating filter separates impinging light into a first and a second part having different properties. The separating filter comprises reflective filters (FR) arranged in funnel shaped structures (F1). Each one of the structures (F1) have an inlet area (IA1) to receive the impinging light (IL) and an outlet area (OA1) smaller than the inlet area. (IA1) to converge reflected impinging light (RL) towards the outlet area (OA1). The structures (F1) comprise a first group of funnel shaped structures (F1) constructed to reflect light which has a first property (C1) towards their respective first outlet areas (OA1) and for transmitting light which has a second property (C2) towards respective second outlet areas (OA2).

Abstract: This invention relates to a composite light source (101) for generating light of a predetermined colour. The light source has a plurality of sub-modules (102-104), which are each able to generate light of that predetermined colour Each sub-module has a light collimating and mixing structure (102-104) and a light unit group (105-107) consisting of a plurality of coloured light units (109a-109c), which are arranged at an entrance (102a-104a) of the collimating and mixing structure. In order to obtain a homogenizing interaction of the light emitted from the light unit groups, looking at a given light unit position in different light unit groups, light units of different colors are mounted in that position.

Abstract: A light-emitting device (100) comprising four light sources (101, 102, 103, 104) in quadrangular arrangement, and a collimating element (110) arranged to collimate and mix light emitted by said light sources is provided. The collimating element has a receiving side (111) for receiving light from said light sources and an opposite output side (112), and comprises two intersecting V-shaped profile surfaces (120, 130), the edges of said V-shaped profile surfaces (125, 135) being arranged towards said receiving face (111). The collimating element is capable of collimating the light from the four light sources and obtain a good color mixing, such that light from each light source is collimated to essentially the same degree.