Abstract: The invention relates to a mirror for personal use, with a lighting system for illuminating at least part of a person (9) being situated in front of the mirror. According to the invention, a position detector for detecting the position of the person (9) in front of the mirror is provided. Further, the lighting system comprises multiple lighting elements which can be actuated independently from each other in dependence of the signal of the position detector. It is especially preferred that the mirror is comprised of an array (8) of OLEDs (1) which can be selectively actuated to function as a mirror element or as a lighting element, respectively, in dependence of the position of the person (9) in front of the mirror. Further, it is preferred that these OLEDs (1) also act as capacitive proximity sensors for the position detector. Thus, a versatile mirror with a good mirror image without blinding is provided.

Abstract: A segmented electroluminescent device (100) with resistive interconnect layers (102), each segment (104,104?, 104?) comprising an electroluminescent layer (110) arranged in between a first (106) and a second electrode (108) layer. The segments (104, 104?, 104?) are connected via resistive interconnect layers (102), the resistive interconnect layers having a larger square resistance than the second electrode layer. The resistive interconnect layers (102) add a ballast resistance to the electroluminescent device such that no additional electric ballast is needed. As the electric ballast is divided over multiple layers the problem of a heat management for the electric ballast becomes less important. By adding an isolation layer (122) the surface of the resistive interconnect layers (102) can be increased to almost the whole surface of the electroluminescent device (100). The system of the electrode layer (108), the isolating layer (122) and the resistive layer (102) functions as a capacitor.

Abstract: The present invention relates to a method for determining a status and/or condition of an LED/OLED device 10, comprising the steps of: applying at least one time varying signal 22 to the LED/OLED device, acquiring the response 24 to said at least one time varying signal, correlating said response with predetermined values 30, and determining the status/condition 32 on the basis of the correlation result. Further, the present invention relates to a device adapted to carry out the inventive method.

Abstract: Organic light emitting diode arrangement Organic light emitting diode arrangements (1) are, to protect them against an effect of a switch-on, provided with circuits (31-36) for, during a first time interval that follows a switch-on, limiting a current through the organic light emitting diode arrangement (1) more and for, during a second time interval that follows the first time interval, limiting the current less. The circuit (31-36) may be passive such as a negative temperature coefficient resistor (31) or a series inductor (32) possibly with a freewheel diode (40) or may be active such as a switchable resistor (33) that is not bridged during the first time interval and that is bridged during the second time interval or a switchable resistor that is bridged in response to a detection of a value of the current exceeding a threshold value or such as a part of a converter (63) that is controlled in response to a detection of a value of the current.

Abstract: The present invention relates to a modular electric system with a base module (2, 11) comprising a substrate (3, 12), a power supply (40), power/data transmission means (4, 16) and holding means; at least one load module (7, 20, 30) comprising an cc electric load, a power/data receiving means (8, 26) and a holding means, said load module (7, 20, 30) being adapted to be placeable on said substrate (3, 12) in first and second positions, wherein in said first position (connecting position) the transmission means (4, 16) of said base module interact with said receiving means (8, 26) of said load module (7, 20, 30) and in said second position (repelling position) interaction of said transmission means (4, 16) and said receiving means (26) is not allowed or possible.

Abstract: A segmented electroluminescent device (100) with resistive interconnect layers (102), each segment (104,104?, 104?) comprising an electroluminescent layer (110) arranged in between a first (106) and a second electrode (108) layer. The segments (104, 104?, 104?) are connected via resistive interconnect layers (102), the resistive interconnect layers having a larger square resistance than the second electrode layer. The resistive interconnect layers (102) add a ballast resistance to the electroluminescent device such that no additional electric ballast is needed. As the electric ballast is divided over multiple layers the problem of a heat management for the electric ballast becomes less important. By adding an isolation layer (122) the surface of the resistive interconnect layers (102) can be increased to almost the whole surface of the electroluminescent device (100). The system of the electrode layer (108), the isolating layer (122) and the resistive layer (102) functions as a capacitor.

Abstract: The present invention relates to a daylight deflection system including an arrangement of louvers (5) which are aligned and formed to block daylight impinging from an outer side (3) at higher angles of incidence with respect to a horizontal direction (19), to deflect daylight impinging from the outer side (3) at lower angles of incidence with respect to the horizontal direction (19) towards an indoor ceiling, and to allow visual transmission in at least the horizontal direction (19). In this deflection system OLED's (8) or optical light guides (16) coupled to LED's (17) are attached to or integrated in the louvers (5), said OLED's (8) or light guides (16) being microstructured at a surface to deflect the daylight toward the indoor sealing. With this daylight deflection system indoor lighting combining daylight and artificial light is achieved in a compact manner.

Abstract: The present invention relates to an electroluminescent device comprising: first electroluminescent layer (102; 102?, 102?, . . . ), a first electrode layer (104; 104?, 104?, . . . ) arranged on a first side of the electroluminescent layer and a second electrode layer (106; 106?, 106?, . . .

Abstract: The present invention relates to a supply circuit (1) comprising: a bridge circuit (3) comprising at least two series-connected switches (M1, M2) being coupleable to a load circuit (11), a resonant circuit (5) coupleable at one end to a power source (7) and coupled at another end to the interconnection (15) of the at least two switches (M1, M2) of the bridge circuit (3), and at least two diodes (D1, D2), wherein a diode is coupled between each switch (M1, M2) and the power source (7).

Abstract: The present invention relates to a supply circuit (101) comprising: a bridge circuit (103), at least one resonant circuit (107) coupled to the bridge circuit (103), the at least one resonant circuit (107) being coupleable to a load circuit (109) comprising one or more loads (111), at least one supply switching unit (129) coupled between the bridge circuit (103) and an associated load circuit (109) for connecting and disconnecting the load circuit (109) from the bridge circuit (103), and a control unit (131) for controlling the at least one supply switching unit (129) in synchronization with a resonant current (Ires) of the resonant circuit (107) associated with said supply switching unit (129).

Abstract: The invention relates to an organic light emitting diode segment (100) comprising two organic light emitting diodes (102; 104), wherein the organic light emitting diodes are vertically stacked with their conducting directions pointing in opposed directions, wherein in the stack the organic light emitting diodes (102; 104) are electrically connected to each other by a common shared electrode (112).

Abstract: To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit (3) parallel to the LED, wherein the modulation-circuit (3) comprises in a series connection a switching device and a threshold device. In a method for operating an LED, the LED is modulated by alternating the switching device between a closed state and an open state.

Abstract: A driver circuit for operating one or more light emitting diodes(LEDs) is disclosed. An alternating supply current is generated and transformed to an alternating secondary winding voltage. Using rectifier means, such as diodes or synchronous switches, the alternating secondary winding voltage is converted to a substantially constant load current by using a buffer element. The buffer element comprises an output choke, such as an inductor. The power transferred from the power source to the LEDs may be controlled by frequency control of the alternating supply current.

Abstract: A light emitting device includes an electronic driver and a planar light emitting element. The driver is connected with a source and the light emitting element, where the light emitting element has an internal capacitance and is connected to the driver in such a way that the internal capacitance serves as a passive output filter of the driver.

Abstract: An OLED device comprised of: an OLED means for generating light, two or more conductive elements adapted for conducting current, a first substrate for mounting the OLED means and the two or more conductive elements, wherein the substrate has a first surface and a second surface, wherein the OLED means is in contact with the first surface and the two or more conductive elements are mounted to the second surface.

Abstract: The invention relates to an organic light emitting diode (OLED) device (200) comprising a tag element (201) that encodes operating information about the device, for example its maximal driving current, such that this information can be read out wirelessly and/or electrically by wire but approximately without Ohmic losses. The invention further comprises a socket (600) with a read-out unit (601) for reading out the operating information from such a tag element (201). The tag element may for instance comprise a tag electrode (201) that can capacitively couple to a counter-electrode (601) in the socket.

Abstract: An OLED device comprised of: an OLED means, a capacitive proximity sensing means for sensing a change in a capacitance, a mechanical element, and a means to provide a signal, wherein the OLED means and the mechanical element are movable relative to each other upon operation by a user and can assume a first position or a second position, wherein the capacitance is adapted to change between a first capacitance and a second capacitance when the OLED means and mechanical element are moved between the first position and the second position by an operator, and wherein the signal depends upon the capacitance.

Abstract: The invention relates to an elongated power distributor (100) adapted to provide electrical power to an OLED device (104), the power distributor (100) comprising—a set of power cells (102), wherein the power cells (102) are arranged along the power distributor (100), each of the power cells (102) being adapted to provide substantially identical operating currents or voltages to the OLED device (104), and—means for mechanically fixing the power distributor (100) to the OLED device (104).

Abstract: Driver arrangements (100) drive first organic light emitting diode circuits (1) coupled to reference terminals (10) and first output terminals (11) and drive second organic light emitting diode circuits (2) coupled to the first output terminals (11) and to second output terminals (12). The driver arrangements (100) comprise first/second elements (21/22) coupled to the first/second output terminals (11) and the reference terminals (10) and first/second switches (31/32) coupled to power source terminals (14) and the first/second output terminals (11/12) for controlling the stacked organic light emitting diode circuits (1, 2) individually. The switches (31, 32) and the first elements (21) comprise transistors and the second elements (22) comprise transistors or diodes. The first/second elements (21/22) and the first/second switches (31/32) are coupled to each other and via first/second inductors (41/42) to the first/second output terminals (11/12).

Abstract: The present invention relates to a lighting system comprising a base part (12) with at least one primary coil (18), and at least one light module (13, 14) with a secondary coil (26) adapted to inductively interact with the primary coil (18). The lighting system is characterized in that said base part (12) comprises a substrate (50) carrying said primary coil (18), the winding of which lying in one plane and forming a flat coupling area (16); the winding of the second coil (26) lies in one plane; and said light module (13, 14) comprises at least one light element (20) and a flat bottom surface, so that the light module (13, 14) is placeable with its flat surface on the flat coupling area (16).