Abstract: A retrofit light emitting diode (LED) module may include a carrier with at least one LED, a retrofit connection for mechanical and electrical contact-connection to conventional lamp holders, and an electronic system for driving the at least one LED. At least one part of the electronic system is integrated into the carrier, and the electronic system comprises a sensor system. A retrofit LED module system may include at least two retrofit LED modules and at least one control unit which regulates the retrofit LED modules in an adaptive and synchronized manner.

Abstract: The present invention relates to an LED module 10, a circuit board 1, and a method for coating the circuit board 1 that is used in an LED module 10. The circuit board 1 is used particularly for reflecting light emitted by at least one LED chip of the LED module 10. The at least one LED chip 6 is located on a carrier plate 5 in a cut-out 2 of the circuit board 1. To increase the light yield of the LED module 10, the circuit board 1 is sprayed with a highly reflective layer 4. The layer 4 can be an ink provided with reflective particles, for example, which is sprayed on using an ink jet printing method. The LED module can additionally have at least one colour conversion element 7, 8, 9, which is preferably positioned in or above the at least one cut-out 2 of the circuit board 1. Finally; positioning elements 12, 13 can improve the assembly of the LED module 10, particularly the alignment of the circuit board 1 and the carrier plate 5.

Abstract: Set of a plurality of LED emitters, wherein the LED emitters in the set generate a different luminous efficacy, and have a standard housing.

Abstract: An LED module, including a carrier having high reflectivity, wherein a metal layer, preferably a silver layer or a layer of high-purity aluminum, is applied to the carrier. Also disclosed is an LED module, including a carrier having high reflectivity, wherein a metal layer is applied to the carrier, at least one LED chip, and a dam, wherein the metal layer partially covers the surface of the carrier lying under the dam.

Abstract: The present invention relates to a heat sink (1), which is in thermal connection with at least one electronic component (4). The heat sink (1) has at least one chamber (2), which has at least one wall with at least one porous element (3a). Pressure producing means (7) are connected to the chamber (2), in order to cyclically modulate the air pressure P1 in the chamber (2). Thus, a “breathing” of air through the at least one porous element (3a) can be achieved and a cooling effect is obtained. Additionally, holes (8) can be provided to the chamber (2), which produce cyclic air jets (9) due to the fluctuating chamber air pressure P1.

Abstract: The invention relates to an elongated luminous element (1) having a plurality of approximately point-shaped light sources (2) disposed along a line and having light diffusion means (3) deflecting at least one part of the light rays (12) sent out by the light sources (2) in a desired direction. The light diffusion means (3) are disposed lateral to the main emitting direction of the light sources. The elongated luminous element (1) is particularly suitable for installation in a light box (13) for advertising or demonstration purposes. The light box has a transparent or partially transparent front side (7) and a reflective back side (8). The elongated luminous element (1) or a plurality thereof is or are applied to at least one of the side areas (11, 14), such that the light rays (12) emitted by the light sources (2) and deflected by the light diffusing means (3) are aimed between or on the back side (8) and/or the front side (7) of the light box (13).

Abstract: A regulation circuit is provided for making available a constant current supply on the basis of a transformer principle, in which there flows through the luminescent diodes a triangular a.c. current varying periodically around a d.c. current value. Circuitry is provided so that both the charging and the discharging current of an inductive reactance connected in series to the luminescent diodes, functioning as a storage choke for filtering of mains harmonics, flows as diode current through the luminescent diodes. An advantage of this method consists in a significant reduction of the overall power loss of the LED illumination module. According to one embodiment, the ceramic circuit board of the LED illumination module has a direct mains current supply, which, for protection from mechanical damage, is accommodated in a transparent housing having a highly transparent polymer mass serving as an optically active lens surface.

Abstract: The present invention proposes an LED dimming module (10) comprising two LED strings (1,2), the first LED string (1) comprising at least one color converted blue or UV LED (1a) and the second LED string (2) comprising at least one amber light emitting LED (2a), the LED module further comprising control means (3) connected to the first and second LED string (1,2), said control means (3) being designed to selectively vary a current provided to the first LED string (1) such that a non-linear dimming curve (13b) of the resulting emitted light is obtained, said dimming curve (13b) approaching the planckian curve (9) on the CIE chromaticity diagram.

Abstract: The present invention relates to a heat sink (1), which is in thermal connection with at least one electronic component (4). The heat sink (1) has at least one chamber (2), which has at least one wall with at least one porous element (3a). Pressure producing means (7) are connected to the chamber (2), in order to cyclically modulate the air pressure P1 in the chamber (2). Thus, a “breathing” of air through the at least one porous element (3a) can be achieved and a cooling effect is obtained. Additionally, holes (8) can be provided to the chamber (2), which produce cyclic air jets (9) due to the fluctuating chamber air pressure P1.

Abstract: The present invention is directed to a cooling system (1) for electronic components (4). The cooling system (1) comprises means (7) for producing cyclic air pressure fluctuations, wherein the electronic components (4) are distanced from the pressure producing means (7). In the vicinity of the electronic components (4) are situated means (5), preferably restrictions like holes, which are affected by the cyclic air pressure fluctuations, and which produce cyclic air jets (6). The air jets (6) affect the surface of the electronic component (4), and since the air jets (6) originate directly in the vicinity of the electronic components (4), an efficient heat transfer is affected. Preferably, the pressure producing means (7) actuate a pressure Pc inside a chamber (2), and turbulent air jets (6) are produced through holes (5) of a substrate (3), onto which electronic components (4) are mounted.

Abstract: The invention relates to a LED spotlight, preferably for white light, comprising—an LED module (5) having several LED chips (7, 7?) on a carrier (6),—a cooling body (3) that is in thermal contact with the LED module (5),—a reflector (2) that laterally surrounds the LED chips (7, 7?), and—a light mixing chamber (40) arranged within the reflector (3) and laterally surrounding the LED chips (7, 7?), the light mixing chamber base surface (50) and the reflector bottom (60) being located on the same plane.

Abstract: The invention relates to a packaged LED module (1) comprising a module (2) having at least one LED (3) arranged thereon, and a one-piece package (10, 100) having a receptacle for the module (2), a substantially optically transmissive region (11, 11a, 11b, 11c), which makes it possible to emit light from the LED (3) towards the outside, an opening (16) and potting blocking means (17). The package (10, 100) is embodied in such a way that a potting component is introduced via the opening (16) into the package (10, 100) equipped with the module (2). The introduced potting component forms a potting body (30), which completely fills the package (10, 100), excluding a region between the LED (3) and the substantially optically transmissive region (11, 11a, 11b, 11c) on account of the potting blocking means (17), and which connects the package (10, 100), the module (2) and connecting cables (20) that can be connected to the module (2) in an externally sealing manner.

Abstract: Set of a plurality of LED emitters, wherein the LED emitters in the set generate a different luminous efficacy, and have a standard housing.

Abstract: The invention relates to a retrofit LED lamp having an LED module, a driver circuit for supplying power to the LED module, a base for making mechanical and electrical contact with a bulb fitting and a heat sink arrangement for dissipating the heat produced during operation at the LED module and/or the driver circuit. The heat sink arrangement in this case has a metal mount insert consisting of a mount plate with an integrally attached collar, the mount plate bearing, in thermally conductive contact, the LED module, and a transparent upper shell being fitted to the collar of the mount insert in the light exit direction and a thermally conductive lower shell being fitted, in areal contact, in the direction of the base for heat dissipation, said upper shell and said lower shell together forming a housing of the LED lamp which surrounds the LED module and the mount insert.

Abstract: The invention relates to a method for operating a range of LEDs preferably fed with constant current, which range of LEDs preferably generates white mixed light with at least two LED types of different spectrum, wherein the movement of the colour locus of the mixed light, which is caused by the different negative gradients of the temperature dependencies of the intensity of at least two different LED types, is reduced by circuitry without using measurements and feedback variables.

Abstract: The invention relates to an LED lamp for warm white light having an LED module consisting of at least one colour-converted blue or UV LED, and at least one monochromatic LED, preferably a red LED, in the case of which the mixed spectrum produces white light with a colour temperature CCT of between 1500K and 2400K, preferably 1700K and 2100K at room temperature, and between 1800K and 2400K, preferably 2100K and 2300K at a stationary operating temperature of, for example, between 70° C. and 80° C. of the LED lamp.

Abstract: The invention relates to a method for controlling the operation of an LED luminaire (1) which has a plurality of LEDs (5, 6) as light sources. The method has the following steps: evaluation, by a control unit (3) for the LED luminaire (1), of an electrical signal which is produced by a switch, pushbutton or dimming switch (10) which can be operated by a user (11) and is connected to the control unit (3) and supplied with voltage via an interface (23) of the LED luminaire (1), and variation of the color spectrum of the LED luminaire (1) as a function of the evaluated signal.

Abstract: A new manufacturing method is described by the present invention for a new LED module 1. The method comprises mounting of at least one LED 3 onto a surface of a substrate 2, and depositing a base layer 5 to cover said substrate 2 surface and the LED 3, wherein the base layer 5 is transparent for visible light and preferably does not comprise phosphor particles. Optionally, a first heat treatment to modify the surface properties of the base layer 5 is comprised. The method further comprises dispensing a matrix material, so that it forms an essentially half-spherical cover covering the LED and optionally nearby portions of the base layer, and optionally, a second heat treatment to harden the half-spherical cover layer. Additionally the present invention discloses an LED module 1, which is manufactured by the claimed method.

Abstract: The invention relates to an LED lamp (L), having a light-emitting means with at least one LED, and a heat sink (K1-K6), characterized in that the heat sink (K1-K6) is configured such that a plurality of channels (1, 1?, 1?, 1??) are formed through said heat sink for transporting away air which is heated by operation of the light-emitting means, wherein the channels (1, 1?, 1?, 1??) are arranged in the form of a ring around an axis (A), and wherein the length of at least one channel (1, 1?, 1?, 1??) is at least half the shortest diagonal or transversal in the transverse extent of the corresponding one channel. The arrangement according to the invention and in particular the configuration of the channels (1, 1?, 1?, 1??) make it possible to achieve particularly effective dissipation of heat.

Abstract: The invention relates to an elongated luminous element (1) having a plurality of approximately point-shaped light sources (2) disposed along a line and having light diffusion means (3) deflecting at least one part of the light rays (12) sent out by the light sources (2) in a desired direction. The light diffusion means (3) are disposed lateral to the main emitting direction of the light sources. The elongated luminous element (1) is particularly suitable for installation in a light box (13) for advertising or demonstration purposes. The light box has a transparent or partially transparent front side (7) and a reflective back side (8). The elongated luminous element (1) or a plurality thereof is or are applied to at least one of the side areas (11, 14), such that the light rays (12) emitted by the light sources (2) and deflected by the light diffusing means (3) are aimed between or on the back side (8) and/or the front side (7) of the light box (13).