摘要:
A LED-array system comprises at least one LED package 104 arranged on a substrate 106 provided with means for supplying the LED package 104 with a drive voltage. The LED package 104 is immersed in a supporting layer 112, and the system is characterized in that the at least one LED package 104 comprises a side-emitting LED package, for emission flight essentially parallel to a surface of the substrate 106 and that the system comprises at least one out coupling structure 116 reflecting/scattering the emitted light out of the supporting layer 112.
摘要:
A LED-array system comprises at least one LED package 104 arranged on a substrate 106 provided with means for supplying the LED package 104 with a drive voltage. The LED package 104 is immersed in a supporting layer 112, and the system is characterized in that the at least one LED package 104 comprises a side-emitting LED package, for emission flight essentially parallel to a surface of the substrate 106 and that the system comprises at least one out coupling structure 116 reflecting/scattering the emitted light out of the supporting layer 112.
摘要:
An illumination device comprises a housing (5) with a plurality of compartments (3), each compartment comprising a respective light emission window (15), a light source (11), and a stack of crossed prismatic sheets (10). Light issued by the light source during operation is made to propagate through the prismatic sheets and subsequently through the light emission window. The orientation of the stack of sheets is different for each compartment, thus causing each compartment to issue a different beam of light. The light source of each compartment is separately switchable, thus enabling easy setting of the type of beam issued form the illumination device. Optionally a diffuser (17, 23) is provided at one side or at both sides of the stack of prismatic sheets to enhance the homogeneity of the issued light.
摘要:
A lamp assembly (1) comprises at least a light source (8) and a reflector for reflecting light from the light source (8). The reflector is positionable with respect to the light source (8) in at least a first position and a second position to obtain a spot-like light emission in the first position and a more or less omnidirectional light emission, in the second position, of the light emitted by the lamp assembly (1). The lamp assembly (1) comprises a reflective layer (7). In the first position of the reflector at least part of the light is reflected by the reflector as well as by the reflective layer (7). In the second position of the reflector at least part of the light is reflected by the reflector and passes along the reflective layer (7).
摘要:
The invention relates to a thin illumination device (1, 10, 20, 30, 40, 50, 60). The invention also relates to a display device and a luminary device comprising such a thin illumination device. The thin illumination device comprises a translucent plate (2, 23, 31, 41, 51, 66, 73) provided with an array of light-emitting diodes (LEDs) (3, 32, 47, 61, 75) connected by an electric conducting pattern, and a reflector (4, 20, 22, 43, 53, 62, 74) arranged on a first side of the plate at a distance from the plate. Such a construction can be made thinner and works more efficiently than a conventional LED thin-film illumination device.
摘要:
The present invention relates to a LED-array system (202) comprising at least one LED package (200), said at least one LED package comprising a LED (204) and being arranged on a substrate (206) provided with means (208) for supplying the LED package (200) with a drive voltage, wherein said at least one LED package is immersed in a supporting layer (212) covering the substrate plate (206). In order to improve optical efficiency and reduce glare the LED package also comprises a reflector (220) having a reflective surface for collimating the light emitted by the LED (204). The invention also relates to lighting systems comprising the LED-array system and a method for producing said LED-array system.
摘要:
The invention relates to an illumination system (1) for illuminating display devices, comprising: a light emission window (2) for emitting light in the direction of a display device, a reflector (5) for reflecting light, at least a part of which reflector is arranged substantially parallel to and opposite to the light emission window, and a plurality of elongated light sources (6, 9) arranged between said light emission window and said reflector, wherein the surface of each light source is provided with coatings (11) that define multiple elongated light emitting apertures (12), which span each an angle x whose bisector (13) is directed towards the reflectors. The invention further relates to a display device comprising said illumination system.
摘要:
The invention provides a collimator comprising a prismatic layer stack. The prismatic layer stack comprises a first prismatic layer comprising ID arranged first prisms, with first prism tops having first prism top angels, and first grooves, having first groove angles; and a second prismatic layer comprising ID arranged second prisms, with second prism tops having second prism top angels, and second grooves, having second groove angles. The first prismatic layer and the second prismatic layer are in a crossed configuration. Further, the first and second prism tops of the first and the second prismatic layers point in the same direction. The first and second prism top angels and the first and second groove angles are selected from the range of 120-160°.
摘要:
The present invention relates to a light emitting diode, LED, light source that may be arranged for retrofitting into a luminaire employing an incandescent light source. The light source comprises a light guide into which light from one or more LEDs in a light unit arranged at one end of the light guide is injected, and a reflector having a reflecting surface arranged at the other end of the light guide and facing towards the light guide capable of reflecting light incident on the reflecting surface. According to the present invention, the reflector comprises at least one transmitting portion being arranged such that at least a portion of light incident on the at least one transmitting portion is transmitted through the reflector, for example a through hole extending along an axis, allowing for an almost viewing angle independent light intensity of the light source.
摘要:
The invention relates to a thin illumination device (1, 10, 20, 30, 40, 50, 60). The invention also relates to a display device and a luminary device comprising such a thin illumination device. The thin illumination device comprises a translucent plate (2, 23, 31, 41, 51, 66, 73) provided with an array of light-emitting diodes (LEDs) (3, 32, 47, 61, 75) connected by an electric conducting pattern, and a reflector (4, 20, 22, 43, 53, 62, 74) arranged on a first side of the plate at a distance from the plate. Such a construction can be made thinner and works more efficiently than a conventional LED thin-film illumination device.