摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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. At least a second light beam (102, 104) comprises light of a second primary color (G, B) impinging on the light input window for coupling the light of the second primary color into the light distribution element, the second light beam being substantially not parallel to the first light beam. Use of specularly reflective outcoupling means yields a difference between an angle of incidence between the first and the second light beam. This difference is substantially preserved, which results in a color separation of the light emitted by the light distribution element towards the display device.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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).
摘要:
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.