The invention relates to a lighting device having an optical assembly for the color mixing of light sources, wherein at least two light sources, in particular semiconductor elements, are arranged outside a transparent body, wherein the light sources emit primary radiation, which is coupled into the transparent body and is diverted there by means of total reflection, wherein the transparent body has a bottom part, a top part and a light exit opening, wherein an optical converter, in particular a scattering and/or radiation-converting means, is assigned to the bottom part, wherein an external housing closes the transparent body apart from the light exit opening, so that color-mixed radiation leaves the lighting device through the light exit opening.
The present invention relates to an auxiliary starter for a lighting device and a lighting device. The auxiliary starter comprises a discharging vessel (11), a supporter (13) and a feeding device (15), wherein the discharging vessel (11) gas tightly encloses filling gas (12) and has at least one radiation transmission region, the supporter (13) is arranged in the discharging vessel (11) and is conductively connected to the feeding device (15) which passes through the discharging vessel (11), characterized in that the discharging vessel (13) has emitting material (14) for emitting electrons on the surface thereof.
An electric load is adjusted dependent on the line frequency of a power grid (energy supply grid), said line frequency being measured in the load itself. A building management system can thereby counteract a deviation from the target line frequency in a self-sufficient manner for example. Information can also be transmitted to the energy supplier, which then adjusts the load and can thus counteract a deviation from the target frequency. The invention allows an early and efficient detection of fluctuations of the line frequency in volatile regenerative energy sources for example. On this basis, countermeasures can be introduced at different (central) sites, for example in a control system (building or facility management system) or in the energy supplier.
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
According to various embodiments, a lighting apparatus including a reflector ( 104 ) and a lighting module is provided, wherein the lighting module includes: a base plate ( 106 ); a first light generating element ( 108 ) arranged on the base plate such that light emitted by the first light generating element illuminates a first portion of a surface of the reflector; and a second light generating element ( 110 ) arranged on the base plate ( 106 ) such that light emitted by the second light generating element illuminates a second portion of the surface of the reflector, wherein a light emitting surface of the first light generating element is tilted with respect to a light emitting surface of the second light generating element.
The present invention relates to a pressing tool (100, 50) for pressing a silicone element (410), having an upper pressing tool part (101, 151) and a lower pressing tool part (102, 103, 183), which form a cavity (109) for pressing a silicone element (410) in the closed state of the pressing tool (100, 150). In this case, the upper pressing tool part (101, 151) and the lower pressing tool part (102, 103, 183) interact such that, in the closed state of the pressing tool (100, 150), a clamping force acts on a carrier film (200), introduced between the pressing tool parts (101, 102, 103, 151, 183), for the silicone element (410). The present invention also relates to a system composed of the pressing tool (100, 150) and the introduced carrier film (200) and also to a method for pressing a silicone element (410).
B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
7.
OPTICAL ELEMENT FOR COLOUR MIXING AND OPTICAL ARRANGEMENT FOR COLOUR MIXING
An optical element for colour mixing comprises a first lateral surface (S10a) having first regions (11), which are configured for the entry of light into the interior (13) of the optical element (10), and having second regions (12), which are configured for diffuse reflection of light that is incident on the second regions (12) from the interior (13) of the optical element. A second lateral surface (S10b), which is situated opposite the first lateral surface, is configured for totally reflecting the light that is incident from the interior of the optical element into the interior (13) of the optical element (10) onto the second regions (12) of the first lateral surface. Owing to the diffuse reflection at the second regions (12) of the first lateral surface (S10a), the light is mixed in a manner such that the optical element appears to an observer as a source effecting Lambertian radiation that is homogeneous in terms of colour and luminance.
A switch assembly, for instance adapted to wall- side installations, for supply arrangements of a load via multiple activation points (for example in the form of "double switching"), comprises a pair of traveler contacts (18, 20) alternatively connectable to a power supply (N), as well as a switch (120) having an output contact (22), alternatively connectable to one or the other of the traveler contacts (18, 20), respectively, on the basis of the current position of switch (120). Switch (120) is an electronic switch which is connected, for example through an electronic circuit (1200) which optionally also performs a driving function (120a) on switch (120), to a respective power line (122). Powering elements (124, 126) are provided, for example in the form of a pair of diodes, controlled electronic switches or diode bridges, which connect said respective power line (122) to the one of traveler contacts (18, 20) which is currently connected to power supply (N), therefore ensuring a steady supply irrespective of the switch position.
H01H 89/00 - Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
H05B 37/00 - Circuit arrangements for electric light sources in general
9.
ILLUMINATION SYSTEM, RELATIVE COMPACT FLUORESCENT LAMP AND RELATIVE REPLACEMENT METHOD
An illumination system comprising a connector comprising two contacts (122, 124; 322, 324) for connection to a lamp (1; 3), a lamp (1; 3), and a conventional ballast (2) arranged between a power supply network (L1, N) and the connector, wherein the conventional ballast (2) comprises a reactor (22) connected in series with the lamp (1; 3), wherein the reactor (22) is configured for powering a high-pressure discharge 1amp (1). In particular, the lamp is a compact fluorescent lamp (3) comprising : a connection part comprising a first (322) and a second (324) contact for connection to the connector, a discharge tube (302) comprising a first (304b) and a second (304a) electrode, wherein the first electrode (304b) is connected to the first contact (322) of the connection part, a reactor (34) connected between the second electrode (304a) and the second contact (324) of the connection part, and a starter (36) connected between the first (304b) and the second (304a) electrode. The reactor (34) and the starter (36) of the compact fluorescent lamp (3) are configured so that the compact fluorescent lamp (3) may be used with the conventional ballast (2).
H01J 61/32 - Special longitudinal shape, e.g. for advertising purposes
H01J 61/56 - One or more circuit elements structurally associated with the lamp
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
The invention relates to an optoelectronic semiconductor component using a red and yellow-green fluorescent substance, wherein the red fluorescent substance is arranged directly on the LED and the yellow-green fluorescent substance is spaced apart therefrom.
An arrangement for driving a light source, including a plurality of LED strings (K1, K2,..., Kn) by means of a current generator (I), wherein each said LED string (K1, K2,..., Kn) forms a respective current mesh with said current generator (I), includes: - at least one inductor (L) acting on said current meshes, - in each of said current meshes, an electronic switch (SI, S2,..., Sn) having a first, working node towards the LED string (Kl, K2,..., Kn) and a second, reference node opposed to the LED string (Kl, K2,...,..., Kn). All the reference nodes of all the electronic switches (SI, S2,..., Sn) are connected together, and the working node of each electronic switch (SI, S2,..., Sn) is connected to the work node of at least another one of the electronic switches (SI, S2,..., Sn) via at least one current averaging capacitor (CI, C2,..., Cn). The electronic switches (SI, S2,..., Sn) can be selectively rendered conductive (SE), each one at a respective time interval (ti), thereby selectively distributing the current of the current generator (I) over the LED strings (Kl, K2,...,Kn).
The invention relates to a discharge lamp, in particular a low-pressure mercury discharge lamp (1), having a tubular discharge vessel (2) in which electrode carriers (12, 13, 16, 17) extend beyond a first end (3, 4) of the discharge vessel (2), an electrode (11, 15) being arranged on said electrode carriers, and the discharge vessel (2) comprises a cross sectional constriction (20, 21), wherein the cross sectional constriction (20, 21) is formed between the electrode (11, 15) and the first end (3, 4) as seen in the direction of the longitudinal axis (A) of the discharge vessel (2).
The invention relates to a LED light source, which is equipped with a primary light source, in particular a white-emitting LED, the radiation of which is scattered by a scatter element that is mounted spaced apart therefrom and which is disposed as a dome upstream of the primary light source. The dome is a provided with a diffuser material, which allows a uniform light distribution curve.
The invention relates to a high-pressure discharge lamp having a red emitting filling that contains metal halides, in particular at least one lithium halide together with potassium halide, rubidium halide, and/or cesium halide. Thus, the maintenance of the lamp is improved.
A wireless network including a plurality of occupancy sensors (S) to detect occupancy (P) of a space (e.g. a class in a school or a kindergarten) and a device, such as a lighting source (L), actuated as a function of occupied status wireless signals transmitted by the occupancy sensors (S), thus avoiding the need for babies and children to manipulate electrical switches. The sensors (S) transmit e.g. periodically (tRi) an occupied status wireless signal (tTi) as long as the sensor (S) device is detecting occupancy (P), whereby no status signal is transmitted while in the unoccupied state.
An occupancy sensor (S) includes: - a sensing probe (101) to detect occupancy (P) of a space monitored by the sensor (S) and produce a corresponding sensing signal, - a comparator (104) including a voltage divider (RA, RB, R1, R2, R3, RC) defining a comparison value (A, B) against which the sensing signal is compared to detect occupancy, and - a voltage sensing means (105) to sense a feed voltage (Vbattery) applied to the sensor (S), wherein changes in the feed voltage (Vbattery) to the sensor induce a change in the comparison value (A, B). The voltage divider (RA, RB, R1, R2, R3, RC) includes one or more resistors (R1, R2, R3) selectively switcheable (Q1, Q2, Q3) to counter changes induced in said comparison value (A, B) by changes in the feed voltage (Vbattery) • For instance, the voltage divider (RA, RB, R1, R2, R3, RC) may define a comparison window for the sensing signal with a width between an upper threshold (A) and a lower threshold (B), and may include one or more resistors (R1, R2, R3) selectively switcheable (Q1, Q2, Q3) to counter changes in the width of the comparison window (A, B) induced by changes in the feed voltage ( Vbattery) •
G08B 13/19 - Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
G08B 29/24 - Self-calibration, e.g. compensating for environmental drift or ageing of components
The present invention relates to a method for producing phosphor layers or phosphor bodies, comprising applying a suspension of at least one solid phosphor in a liquid alkali metal silicate/water mixture to a substrate surface or into a mould, and hardening the suspension in order to generate a phosphor layer or a phosphor body. The invention further relates to the suspensions employed in this method and to the use thereof for producing phosphor layers or phosphor bodies, and also to optical components or lamps which comprise the phosphor layers or phosphor bodies produced in accordance with the invention.
C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
H01J 29/22 - Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel
19.
PROJECTION DEVICE FOR PROJECTING AT LEAST ONE IMAGE ONTO A PROJECTION SURFACE AND CORRESPONDING METHOD FOR OPERATING A PROJECTION DEVICE
The invention relates to a projection device (10) for projecting at least one image onto a projection surface (30), comprising: at least one laser device (12) for emitting radiation (14) for the image projection; at least one sensor device (18), wherein the sensor device (18) is designed to ascertain a hazardous situation for a person (24) due to the radiation (14) of the at least one laser device (12); and a control device (22), which is coupled to the at least one laser device (12) and the at least one sensor device (18), wherein the control device (22) is designed to modify at least one operating parameter of the at least one laser device (12) when a hazardous situation for a person (24) is ascertained, wherein the sensor device (18) is designed and arranged to detect radiation (20) of the at least one laser device, (12), said radiation being reflected by the projection surface (30). The invention further relates to a corresponding method for operating a projection device (10).
The present invention relates to an electronic ballast for operating a hybrid luminaire having at least one discharge lamp (FL) and at least one LED. A pin of a conventional control apparatus (10) is used with a double function in order to switch back and forth between discharge lamp operation and LED operation: while the filaments of the at least one discharge lamp (FL) are being preheated, the signal which is applied to this pin serves to measure the preheating current, whereas after preheating, a control signal is evaluated at this pin in order to switch back and forth between discharge lamp operation and LED operation.
The invention relates to a circuit arrangement for rapid commutation during square wave operation of high-pressure discharge lamps, comprising: a half bridge arrangement having a half bridge and a lamp inductor, a first switch for coupling the half bridge arrangement to the lamp, a second switch for completing the forward current commutation and for initiating a forward phase, a third switch for completing the reverse current commutation and for initiating a reverse phase, and a block capacitor. The invention likewise relates to a method for operating a high-pressure discharge lamp by means of a circuit arrangement having a half bridge arrangement with a half bridge and a lamp inductor and a block capacitor, characterized by the following steps: before initiating commutation, disconnecting the half bridge arrangement from the high-pressure discharge lamp by opening a first switch; completing the forward commutation by closing a second switch to initiate a forward phase and by opening a third switch, or completing the reverse commutation by closing the third switch to initiate a reverse phase and by opening the second switch; connecting the half bridge arrangement to the high-pressure discharge lamp by closing the first switch; and opening the second switch and the third switch.
H05B 41/292 - Arrangements for protecting lamps or circuits against abnormal operating conditions
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
23.
PHOSPHOR ASSEMBLY WITH PHOSPHOR ELEMENT AND OPTICAL SYSTEM
This invention relates to a phosphor assembly with a phosphor element (1) for converting pump light into converted light, and an optical system (2) for transmitting converted light and/or pump light. Therein, a liquid immersion material is provided in a gap (6) between the phosphor element (1) and the optical system (2), wherein an excess of immersion material (23) enables a continuous exchange of the material in the gap (6) and thus provides a cooling.
The invention relates to a semiconductor assembly, comprising a heat sink and at least one semiconductor element provided on a surface of the heat sink, optionally in the form of at least one light emitting diode assembly. For use of the semiconductor assembly outdoors, the heat sink is provided with a coating on the surface which can face the atmosphere, said coating having emissivity of at least 0.8 in the wavelength range of the electromagnetic radiation of 8 μm to 13 μm, or 8 μm to 10 μm, and absorptance much smaller than 0.8 in the range below 8 μm. Effective radiation cooling can thus be achieved via the atmospheric transmission window.
The invention relates to a device (1) for irradiating surfaces, having a radiating element, wherein the radiating element has at least one tunnel-like passage (3) and a means (8, 11) which is designed to allow a process gas to flow through the at least one tunnel-like passage (3). A separate gas supply device can thereby be omitted. The device can optionally also have a socket (8) of the radiating element having at least one gas opening (12) for supplying and/or discharging process gas.
H01J 65/04 - Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating
An apparatus for use in a lamp is described, comprising a bus system for controlling at least one electronic control gear (102), and a power supply (103) for powering the bus system (105). The power supply (103) can be switched off when the bus system is controlled by an external signal (107). A method for controlling said apparatus is also disclosed.
The invention relates to a single-ended infrared emitter comprising a glass tube in which a heating element is received, an insulated current return conductor being disposed at a distance from said glass tube. In particular, the thus freely selectable distance of the current return conductor from the glass tube allows a flexible arrangement of the current return conductor and a reflector, for example. The reflector can be attached onto the glass tube or fixed at a distance from said glass tube.
H01K 1/46 - Means forming part of the lamp for the purpose of providing electrical connection to, or support for, the lamp supported by a separate part, e.g. base, cap
The invention relates to a high-pressure discharge lamp having an ignition aid, having a discharge vessel that is surrounded by gas, wherein the discharge vessel comprises two ends having seals in which electrodes are secured and wherein an ignition aid causes a corona discharge in the surrounding gas. The ignition aid is fitted with tips for that purpose.
The invention relates to a circuit arrangement for operating at least two semiconductor light sources, comprising: an electrical energy converter, having at least one switch, wherein the electrical energy converter outputs a pulsating DC voltage or an AC voltage, at least two operating sections, each of which has a rectifier that effects short-circuiting or blocking in one current direction and has an input terminal, an output terminal and a reference potential, wherein the operating sections are coupled to the electrical energy converter, at least one current-compensated inductor, wherein the current-compensated inductor is connected between the switch and the at least two rectifiers, at least two semiconductor light sources respectively connected between the output terminal of the associated rectifier and the reference potential thereof, wherein the electrical energy converter is designed as a resonance converter with a resonance cell, and the leakage inductance of the current-compensated inductor is utilized as a resonance inductance of said resonance cell.
The present invention relates to phosphor mixtures for fluorescent lamps for illuminating meat and sausage products. In this case, a reflecting power, which decreases as time increases, of these products in the peripheral regions of the visible spectrum is compensated for by a phosphor mixture with a red phosphor and with barium magnesium aluminate as blue phosphor.
H01J 61/44 - Devices characterised by the luminescent material
C09K 11/66 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing germanium, tin or lead
The invention relates to a method for starting a high-pressure discharge lamp by means of a starter having a starting capacitor, a starting switch and a starting transformer, said method comprising the following temporally successive steps: - charging the starting capacitor to a predetermined voltage, - closing the starting switch, - opening the starting switch before the current through the starting switch, in terms of the fundamental of said current, reaches zero for the first time. The starting switch is actively switched off in the process under current, which results in a high starting voltage.
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
35.
CIRCUIT AND METHOD FOR PREHEATING FILAMENTS AND BALLAST
The present invention provides a circuit and a method for preheating filaments and a ballast. The circuit for preheating filaments includes: a transistor; a first winding, one terminal of which being electrically connected with a collector of the transistor, and the other terminal being connected to an input of a power source; a second winding, one terminal of which being electrically connected with an emitter of the transistor, the other terminal being electrically connected with a base of the transistor, and the second winding being coupled with the first winding in a self-excitation mode; one or more load windings respectively connected with the filaments in series, and each of which being coupled with the first winding in a flyback mode; and a delay switch, which changes into an on state from an off state when a trigger signal with a predetermined delay is received, so as to turn off the transistor. There is also provided a method for preheating filaments and a ballast. The circuit for preheating filaments may save energy consumption and the cost is low.
H05B 41/18 - Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac having a starting switch
H05B 41/295 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
The lighting device (1) has at least one substrate (6, 9) with at least one light source (7, 10), in particular a semiconductor light source, wherein at least one light source (7) is shielded by means of at least one shielding component (2) connected to the substrate (6, 9).
The light-emitting device (1) has at least a first group (4) of light sources with at least one light source (3) and a second group (6) of light sources with at least one light source (5), and also at least one reflector (8) which is designed and arranged to reflect light (L1) emitted by the first group (4) of light sources to an optical plane (E) and at least one light-guiding element (9) which is designed and arranged to guide emitted light (L2) from the second group of light sources to the optical plane (E), wherein the light-guiding element (9) is designed and arranged as a stop for light (L1, L2) reflected by the reflector (8).
The invention relate to a lighting module (1) for a light (12), in particular an examination light, comprising at least one semiconductor light source (2a, 2b), in particular a light-emitting diode, and at least one common optical system (3) connected downstream of the at least one semiconductor light source (2a, 2b), wherein the lighting module (1) is integrated into the light (12) such that same can be replaced. The light (12) comprises a lighting module (1), wherein the lighting module can be replaced as a unit. The method is used for mounting a lighting module (1) on a light (12) according to claim 12, wherein the method comprises at least the following steps: pushing the lighting module (1) through an opening in the transparent covering (16); fastening the handle (19) to the transparent covering (16) such that the handle (19) presses on the contact face (9) of the lighting module (1) and, moreover, such that the heat sink (10) of the lighting module presses against the body (13) of the light (12).
The present application provides a ballast and an illumination system including the same. The ballast includes at least two start control units, each configured to be connected with a corresponding lamp and output a start signal according to a state of the lamp; a start unit, configured to provide start signals from the at least two start control units to a driving unit; and the driving unit, configured to drive lamps according to the start signals from the start unit. Thus, the determination of whether each lamp in a plurality of lamps connected in parallel is normally working and an auto reset of each lamp after an impact protection are realized with a low cost.
The present invention relates to a rotating fixing device for a lighting device, wherein, the lighting device comprises a fixedly arranged assembling ring (1) and a rotating ring (2) that rotates with respect to the assembling ring (1), wherein, the rotating fixing device comprises a first disc (3) in anti-torsion connection with the rotating ring (2) and a second disc (4) in anti-torsion connection with the assembling ring (1), wherein the first disc (3) and the second disc (4) respectively comprise a first teeth portion (5) and a second teeth portion (6), and the first teeth portion (5) engages with the second teeth portion (6) to realize locking the rotating angle of the rotating ring, and the first teeth portion (5) disengages from the second teeth portion (6) to realize adjusting the rotating angle of the rotating ring. The rotating fixing device according to the present invention can reliably maintain the lighting device at a predetermined irradiating angle, and the life span of the overall lighting device will not be shortened with the increase in the number of times of adjusting the angle. In addition, the present invention also relates to a lighting device comprising the above rotating fixing device.
The present invention relates to a method and apparatus for controlling bleeder connected to phase-cut dimmer, wherein the method includes: determining a first time period when the input voltage is lower than a predetermined reference voltage using at least one preceding input voltage cycle; opening bleeder in the first time period in a subsequent input voltage cycle; closing bleeder in a second time period, wherein the second time period equals to the input voltage cycle minus updated first time period, wherein the updated first time period equals to a sum of the first time period and a predetermined advancing time period; and repeating the steps of opening and closing the bleeder using the updated first time period. The present invention is capable of controlling bleeder connected to phase-cut bleeder without distinguishing the dimming types from Triac to Trail, thereby simplifying process and reducing calculation.
The invention relates to a circuit arrangement and to a method for starting and operating a high-pressure discharge lamp, having a half-bridge arrangement with a half-bridge centre point, said half-bridge arrangement being connected to an intermediate circuit voltage with a reference potential and a feed voltage potential, a lamp inductor, which is connected at one end to the half-bridge centre point, a starting stage, which is connected to the other end of the lamp inductor and to the intermediate circuit voltage, a first switch, which is connected between the reference potential of the intermediate circuit voltage and the starting stage, a series circuit comprising a first and a second capacitor, said series circuit being connected to the intermediate circuit voltage, terminals for connecting a high-pressure discharge lamp, wherein a first terminal is connected to the starting stage and a second terminal is connected to the node between the first and second capacitors, a two-port network, the first port of said two-port network being connected to the starting stage and the second port of said two-port network being connected to the node between the first and second capacitors, wherein the first switch is used for generating starting pulses for starting a high-pressure discharge lamp which is connected to the circuit arrangement and for discharging the second capacitor via the two-port network.
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
H05B 41/292 - Arrangements for protecting lamps or circuits against abnormal operating conditions
45.
LIGHT EMITTING UNIT DRIVING CIRCUIT AND LIGHT EMITTING DEVICE
The present invention relates to a light emitting unit driving circuit and a light emitting device. The light emitting unit driving circuit provided according to embodiments of the invention includes: an operating voltage supplying unit for supplying a voltage input for the driving circuit; a driving unit coupled to the operating voltage supplying unit and configured to drive the light emitting unit to make the light emitting unit turn on or turn off; and a feedback control unit coupled between the driving unit and the light emitting unit, and forming a feedback loop together with the driving unit and the light emitting unit to stabilize an operating current of the light emitting unit.
The present invention relates to a method for making a cooling body for a lighting device, comprising the following steps: a) providing multiple aluminum nitride ceramic radiators (2); b) putting the multiple aluminum nitride ceramic radiators (2) into a mold; c) closing the mold, and injecting a melting metal into the mold so that the metal encloses a portion of each of the aluminum nitride ceramic radiators (2), wherein the metal has a melting point lower than that of the aluminum nitride ceramic radiators; and d) opening the mold, and obtaining the cooling body (1). The metal-ceramic composite cooling body obtained via this method has good thermal performances and has low production cost. In addition, the present invention also relates to a cooling body made using the above method and a lighting device comprising the cooling body.
The invention relates to a circuit assembly for operating at least one LED (D6, D7, D8), the assembly being designed to use alternating supply voltage (UN) modified by a phase dimmer (12) for adjusting a dimming angle (WD) for dimming the at least one LED (D6, D7, D8). For this purpose, a controllable current source (22) is provided, which is designed such that at the output thereof a PWM signal to the at least one LED (D6, D7, D8) is provided. Said controllable current source (23) is provided with a control input to which a PWM signal (S3) having a second frequency (f2) is supplied, wherein said signal is derived from a PWM signal (SO) having a first frequency (f1), the pulse width of which is correlated to the dimming angle (WD) adjusted by the phase dimmer (12). The invention further relates to a corresponding method for operating at least one LED (D6, D7, D8).
The present invention discloses a rotated heat sink structure for a light emitting diode (LED) luminaire apparatus. The LED luminaire apparatus according to the invention includes: a LED module (1) for emitting light; a heat sink (2) on which the LED module is mounted for dissipating heat generated by the LED module; a housing (3) for accommodating the heat sink to dissipate the heat generated by the LED module to an outside of the housing; and a thermal tape (4) provided between the heat sink and the housing and being in contact with the heat sink and the housing, so as to transfer the heat generated by the LED module from the heat sink to the housing, wherein the heat sink is rotated to adjust light output direction of the LED module.
The present application provides a transformer and a device including the same. The transformer includes a current suppression part, adapted to suppress a high current at a primary side of the transformer caused by a capacitor in a load network; a primary coil, adapted to receive an input voltage; and a secondary coil, adapted to provide an output voltage to the load network. Thus, the current at the primary side of the transformer is kept to be stable and a protection to the transformer is implemented.
The invention relates to a circuit for limiting current, having a thermal resistor disposed in a current path to a consumer, and having a switch for bypassing the thermal resistor. The invention further relates to a corresponding method and to a device having a light source.
The present invention discloses a heat dissipating device and an LED luminaire. The heat dissipating device (4) comprises an axis portion (41) and a heat dissipating portion (42); The axis portion (41) is in close contact with an attachment device, e.g. an LED module (1), that needs heat dissipation, so that the attachment device is able to rotate around the axis portion (41) and is able to transmit heat of the attachment device to the axis portion (41); the heat dissipating portion (42) is connected with the axis portion (41) in a heat conducting manner on one side and is connected with an external heat dissipater in a heat conducting manner on the other side, so that the heat of the attachment device can be conducted from the axis portion (41) to the heat dissipater.
The present invention relates to method and apparatus for driving an LED, and method and apparatus tor dimming an LED, an illumination system including an apparatus for driving an LED, and an illumination, system including an apparatus for dimming an LED. The method for driving an LED includes determining duty cycle of pulse sequence for controlling the power switch according to present current and predetermined operating current of the LED; generating the pulse sequence according to the duty cycle and according to randomized period sequence and/or randomized pulse position sequence; and controlling switching operation of the power switch by the pulse sequence, so as to drive the LED. Wherein, the LED is connected to power switch. By applying the present; invention, electromagnetic interference may be decreased, and the flickering of the LED may be reduced.
The invention concerns a light source unit (1) of tunable spectral properties, having a pump light source (2) and a phosphor element (6) for a conversion of pump light (3, 5a- 5c) into converted light intended for illuminating a target, wherein the phosphor element (6) comprises at least two phosphor element sections (6) interacting differently with pump light, and wherein the light source unit (1) further comprises a deflecting unit (4), such as a zoom lens or a variable diffraction grating, for deflecting the pump light (3, 5) so as to vary a distribution of pump light (5a-5c) incident onto the phosphor element (6) with respect to the different phosphor element sections (6), in order to vary spectral properties of the combined converted light beam emanating from the light source unit (1).
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
G02B 23/24 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
This invention relates to a method of designing an illumination device, wherein a light source unit is modeled with a set of rays. Therein, each ray is assigned a light power and is further characterized by a light volume, which specifies how "spread out" the light is in area and angle. In this way, a selection of rays with respect to their "density" becomes possible, and an optical system can be optimized for a transmission of those rays providing the most light per volume.
The invention relates to a reading light for the interior of motor vehicles, comprising a plurality of light-emitting diodes (31, 32, 33) arranged on a mounting plate (2), and a plurality of conical light guides (41, 42, 43). Each conical light guide (41, 42, 43) has a light coupling surface (411, 421, 431) facing at least one light-emitting diode (31, 32, 33), and a light decoupling surface (412, 422, 432). The reading light further comprises a light-diffusing plate (12) that covers the light decoupling surfaces (412, 422, 432) of the conical light guides (41, 42, 43), wherein the light-diffusing plate (12) has sections (121, 122, 123) provided with micro-lenses and that are associated with the light decoupling surfaces (412, 422, 432) of the conical light guides (41, 42, 43).
B60Q 3/02 - Arrangement of lighting devices for vehicle interior, the mounting or supporting thereof or circuits therefor for lighting passenger or driving compartment
The invention relates to a projection device (1) comprising a base (2), a support (3) and a projection head (4), wherein the support can be rotated with respect to the base (2) and the projection head, wherein a light guide system (10-18) is accommodated in the support and the projection head houses at least one wavelength-converting luminous substance (22) for converting at least a part of a light beam (L) generated by the at least one light source (5). The method is used to operate a projection device (1) and comprises the following steps: feeding light (L) into a support (3) rotatably connected to a base (2); conducting the light (L) through the support; transferring the light (L) onto a projection head (4) rotatably connected to the support; converting at least a part of the transferred light (L) into wavelength-converted light (Lw) and emitting at least the wavelength-converted light (Lw).
G02B 23/02 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
57.
METHOD FOR OPERATING AT LEAST ONE LIGHT-EMITTING DIODE AND LIGHTING DEVICE FOR CARRYING OUT THE METHOD
The invention relates to a method for operating at least one light-emitting diode (4a, 4b, 4c), wherein the at least one light-emitting diode (4a, 4b, 4c) is operated at least in areas by means of a pulse number modulation, in which a number (n_dim) of uniform current pulses (p_red) is adjusted within a predetermined interval (T) according to a light energy desired value, in particular a dimming level. The lighting device (1) is equipped with at least one light-emitting diode (4a, 4b, 4c) and at least one driver (3a, 3b, 3c) for feeding the at least one light-emitting diode (4, 4b, 4c), wherein the lighting device (1) is designed to carry out the method.
The invention proposes a circuit comprising at least one Y-capacitor, comprising at least one damping element which is arranged parallel to the Y-capacitor. A network filter, an operating device and a lighting apparatus or lamp having a circuit of this kind are also specified.
The invention relates to a direct current discharge lamp comprising a bulb (2), which is asymmetric in the longitudinal section and consists of a spherical half shell (2a) and an adjoining further half shell (2b) having a different shape from the spherical half shell (2a), and an electrode system (4) consisting of an anode (6) and a cathode (8) which is axially spaced therefrom, is seated in the spherical half shell (2a) and is designed with an electrode tip (8a) which faces the anode (6). According to the invention, the electrode system (4) is oriented and placed within the bulb (2) such that the electrode tip (8a) is spaced by a specific distance from a radius center (Z) of the spherical half shell (2a) in direction of the spherical half shell (2b).
The invention relates to a circuit for actuating a light source, comprising a voltage divider (104, 105), an analog-to-digital converter (101), which on the output side is connected to the voltage divider (104, 105), wherein a divider ratio of the voltage divider (104, 105) can be set, wherein the light source can be actuated by means of the divider ratio of the voltage divider (104, 105). The invention further relates to a corresponding method and to a device comprising such a circuit.
The invention relates to a method for extending the life of a high-pressure discharge lamp, having a gas discharge lamp burner made of quartz glass which is operated at an electrical power P(t) which varies over time, wherein the electrical power which varies over time satisfies the following relationship: P (t) =PNom*G (t) *G (U) *G (AP); where PNom is the nominal power of the high-pressure discharge lamp, G (t) is a weighting factor which is dependent on the cumulated burning time, G (AP) is a weighting factor which is dependent on particular factors, such as the number of lamp starts, and G (U) is a weighting factor which is dependent on the lamp voltage.
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
H05B 41/298 - Arrangements for protecting lamps or circuits against abnormal operating conditions
H05B 41/392 - Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
63.
PRINTED CIRCUIT BOARD HAVING AT LEAST ONE SEMICONDUCTOR LIGHT SOURCE, SUPPORT FOR THE PRINTED CIRCUIT BOARD, SYSTEM COMPRISING THE PRINTED CIRCUIT BOARD AND THE SUPPORT, AND METHOD FOR MOUNTING THE PRINTED CIRCUIT BOARD ON THE SUPPORT
The printed circuit board (1) has a front face (2) which can be fitted with at least one semiconductor light source (4) and at least one mounting element (6) which is accessible via a rear face (3), wherein the at least one mounting element (6) is in the form of an electrical conduction element for at least one of the semiconductor light sources (4). The support has at least one support area (12) on which the printed circuit board (1) can be placed, wherein at least one mating mounting element (13) for respectively mounting a mounting element (6) of the printed circuit board (1) is arranged on the support area (12), and wherein at least one mating mounting element (13) is an electrically conductive mating mounting element (13) which is connected to at least one electrical power supply. In the system (10) comprising the printed circuit board (1) and the support (11), the printed circuit board (1) is mounted on the support (11) by the at least one mounting element (6) of the printed circuit board (1) engaging in an interlocking and/or force-fitting manner in a respectively matching mating mounting element (13) of the support (11). The method is used to mount the printed circuit board (1) on the support (11).
Proposed is a luminous device (209), comprising at least two lamps (206, 207, 208), wherein each lamp (206, 207, 208) has a drive unit (203, 204, 205), wherein at least two dimming states of a lamp (206, 207, 208) are settable using at least one of the drive units (203, 204, 205), comprising a control unit (202), by way of which different brightness levels of the luminous device (209) are settable via the dimming states of the lamps (206, 207, 208). Furthermore indicated is a method for operating the luminous device.
The invention relates to an optical device (1) for an illumination unit (3), wherein the optical device (1) is shaped in a hood-like manner and has an end face (100) and also a side wall (110) extending circumferentially around the end face (100), and wherein a wall section (101) projecting into the interior (2) of the hood-like optical device (1) is arranged in the end face (100), said wall section being embodied as a reflector.
The invention relates to an LED lamp (1) having a converter (6) and an arrangement, connected to the converter, of light-emitting diodes (8, 49) arranged on at least one printed circuit board (9). The converter is arranged in a multi-part, latchable housing (20) which completely surrounds the converter and is made of electrically non-conductive material.
The present invention relates to an electronic heating module, comprising an electronic heating body (1), a substrate (2) and heat sinks (3), the electronic heating body (1) being arranged on the substrate (2), wherein, in the substrate (2) provided is a unique via (4) in which a slug (6) conducting heat is mounted, the slug (6), at its one side, comes into contact with the electronic heating body (1), and at its other side, with the heat sinks (3). The electronic heating module according to the present invention obtains good heat dissipation effect, can use the thermoelectric separate assembly and the integrated thermoelectric-type assembly, and is easy to be assembled and produced. Moreover, the present invention also relates to a method for manufacturing the electronic heating module of the above type
A high-pressure discharge lamp (1) with an ignition aid has a discharge vessel (2) which is closed on two sides and is accommodated in an outer bulb (3) which is closed on two sides, wherein the discharge vessel has two ends in which electrodes are fixed, and wherein two power feed lines connect the ends of the discharge vessel and the outer bulb. A UV enhancer is a constituent part of a capillary (5) of the discharge vessel since a circumferential collar (10) is mounted on the outside of a part of the wall of the capillary, said circumferential collar leaving a hollow space (12) in the direction of the wall, said hollow space being filled with a gas which can emit UV radiation.
H01J 61/54 - Igniting arrangements, e.g. promoting ionisation for starting
69.
OPTOELECTRONIC SEMICONDUCTOR ELEMENT AND ASSOCIATED METHOD OF PRODUCTION BY DIRECT WELDING OF GLASS HOUSING COMPONENTS BY MEANS OF ULTRA SHORT PULSED LASER WITHOUT GLASS SOLDER
The invention relates to an optoelectronic semiconductor element and to a method for the production thereof. Said optoelectronic semiconductor element uses glass components. Said components are welded directly to each other by means of ultrashort laser pulses.
A high-pressure discharge lamp, which uses quartz glass as the discharge vessel and which has a very good level of maintenance, uses oxyhalides in a Dy-containing filling for the purpose of improving the cycle process.
The invention relates to a lighting unit having a light source and a reflector. The light source has a primary light source, the radiance thereof being guided via a scattering optic (10) to an optical converter (20). There a secondary radiance is radiated back and output by the scattering optic acting as a secondary light source.
The present invention relates to a cooling device for the electric heating element, comprising a plurality of cooling units (1), wherein, each cooling unit (1) possesses a defined heat dissipation performance, the number of the cooling units is determined according to the power of the electric heating element, and the cooling units (1) of the determined number can be stacked together. By the cooling device constructed by the stackable cooling units (1) according to the present gets variable heat dissipation capacities so as to meet the heat dissipation requirements of LED lighting apparatus with different powers. In addition, the present invention also relates to LED lighting apparatus having the cooling device of the above type.
The present invention relates to a cooling device, comprising: at least one cooling body (1) each of which is provided with a vacuum sealing chamber (3) therein; and a cooling medium filled in the vacuum sealing chamber (3), wherein the cooling medium has a high heat capacity. The cooling device according to the present invention can provide a high heat capacity, satisfactorily overcome thermal shock, and also has fine thermal conductivity and then can effectively cool devices such as an LED lighting apparatus. Another aspect of the present invention also relates to a cooling device, comprising: at least one cooling body (1), wherein the at least one cooling body comprises an elongated bendable member. The cooling device has fine thermal conductivity and heat dissipation property, and is lighter in weight and more flexible in design. In addition, the present invention also relates to an LED lighting apparatus comprising the above types of cooling devices.
The invention relates to a circuit and method for actuating a lighting module, comprising at least two semiconductor elements (D1, D2) which are connected in series in a first operating mode. Upon dropping below a predetermined threshold value of an operating voltage (101), a second operating mode is detected (102) and the at least two semiconductor light elements (D1, D2) are alternately actuated (102, S1, S2) in the second operating mode.
The invention relates to a buck-converter for providing a current for at least one LED (D2; Di), said buck main switch (Q2) is controlled by means of a control device (10) which comprises one (Q45) or two discrete auxiliary switches (Q4, Q5). For this reason, two currents (UR3, UR2) are supplied to the control device (10), said currents being measured by two shunt resistors (R3, R2 ). The first shunt resistor (R3) is arranged so that load current (ILED) flows through the buck converter in the charge phase and in the discharge phase when the second shunt resistor (R2) is arranged such that load current (ILED) flows through the buck converter only in the discharge phase. According to the invention, at least one current source (IQI; IQ2) is provided for influencing the time of switching on and switching off the buck converter and is used to modify currents controlling the auxiliary switch(es) (Q45; Q4, Q5).
H02M 3/156 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
H05B 33/08 - Circuit arrangements for operating electroluminescent light sources
76.
LASER MODULE FOR PROJECTION APPLICATIONS AND METHOD FOR OPERATING SUCH A LASER MODULE
The invention relates to a laser module for projection applications having a plurality of channels, wherein a control circuit is provided for controlling the laser power for each channel. Each control circuit is fed a target value for the brightness of the channel, and an actual value of the brightness that is correlated with the signal output by a photodiode (PDR) associated with the channel (R). In order to compensate for the channel crosstalk of a channel (R) in an electrical manner, either the target value (VoriR) for brightness fed to the control circuit or the actual value (RKmodR) of the brightness is modified by at least one coupled signal (KGR) originating from one of the other channels (G). The invention further relates to a method for operating such a laser module.
The heat sink (4) is provided in particular for a semiconductor lamp (1), wherein the heat sink is constructed from at least one sheet-metal part and has at least one flow structure (3a) wherein the flow structure is designed to guide cooling air (A) along an inner side (9b) of the heat sink (4) and wherein the flow structure is designed to direct the cooling air at the inner side of the heat sink at least partly along a longitudinal axis (L) of the heat sink. The semiconductor lamp (1), more particularly retrofit lamp, has at least one heat sink (4) of this type.
The invention relates to a high-pressure discharge lamp (20) with an ignition aid and having a discharge vessel (21) which is closed on two sides and is housed in an outer piston (22) which is also closed on two sides. The discharge vessel has two ends in which electrodes are secured, two power leads (6) connecting the ends of the discharge vessel and outer piston. Housed in the outer piston is a UV enhancer (25) with an electrode (26) and a dielectrically contacted second electrode (27), the UV enhancer being disposed in the vicinity of one end of the discharge vessel and being connected to a lead (23) which is guided along the discharge vessel and is capacitively coupled to the power lead at the other end of the discharge vessel.
The light emitting device (1) comprises a radiation source (6) and at least one switch (8, 11), wherein the at least one switch (8, 11) is adapted to direct an incoming radiation beam (b) from the radiation source (6) towards at least two light channels (9, 12, 13); and wherein at least one of the light channels (9, 12; 22) comprises at least one phosphor for at least partially converting a wavelength of the incoming radiation beam (b; uv). The method is provided for creating a multi-colored light beam (r, g, b) from a radiation beam (b) from the radiation source (6), wherein the method at least comprises directing the radiation beam (b) from the radiation source (6) towards at least two light channels (9, 12, 13) wherein at least one of the light channels (9, 12) at least partially converts a wavelength of the radiation beam (b) from the radiation source (6) by means of at least one phosphor.
H04N 9/31 - Projection devices for colour picture display
H04N 13/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
80.
FASTENING ELEMENT, LUMINOUS MODULE AND LUMINOUS APPARATUS
The fastening element (4) serves to fasten a light source substrate (102) to a support (2), in particular without tools and in a releasable manner, wherein the fastening element is designed to sit on the light source substrate, and has at least one fastening means (6) in order to be fastened to the support. The luminous module (1) has at least one light source substrate (102) with a light source (106) which is arranged on a front face (105) of the light source substrate, and has the fastening element (4), wherein the fastening element sits on the front face (105) of the light source substrate (102). The luminous apparatus has a luminous module, wherein the light source substrate also rests on a support by way of its rear face and the fastening element both sits on the front face of the light source substrate and is fastened to the support. The luminous apparatus can also have a cover for covering at least part of a light source substrate, wherein the light source substrate rests on a support, and wherein the cover sits on the light source substrate and is clamped to the support by means of at least one independent fastening means.
F21V 19/00 - Fastening of light sources or lamp holders
F21V 17/04 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto or by the light source
F21Y 101/02 - Miniature, e.g. light emitting diodes (LED)
F21V 29/00 - Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
The invention relates to a short-arc discharge lamp comprising a lamp vessel that has a discharge chamber (12) and at least one secondary chamber (14, 16). The lamp vessel is filled with a discharge medium that contains noble gas. The discharge chamber is equipped with two electrodes (22, 24). At least one electrode is disposed on an electrode rod (26, 28). The discharge medium contains elemental chlorine or a chlorine compound in order to realize a halogen recycling process and thus return vaporized electrode material to the electrodes.
H01J 61/16 - Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
H01J 61/26 - Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
H01J 61/86 - Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
The invention relates to a lamp having a lamp housing comprising a receptacle suitable for receiving or for inserting a lamp socket, in particular a G9 lamp socket according to the IEC60432 standard, for a high-voltage halogen pin base lamp. Alternatively, according to the invention, a heat sink is received or inserted in the receptacle, wherein the LED is fixed to said heat sink.
The invention relates to a high-pressure discharge lamp, which preferably emits in the blue spectral range and has very good maintenance, and uses a mixture of indium halides as a fill.
The invention relates to a light box (1) comprising a housing (2, 3, 4) having a light outlet opening, wherein at least one semiconductor light source (5) is accommodated in the housing (2, 3, 4), at least one semiconductor light source (5) at least partially irradiates an inner face (6) of a wall (4) of the housing (2, 3, 4), the inner face is at least partially coated with at least one luminescent substance (7; 12; 13), the light outlet opening is covered by a transparent cover (3), and the cover (3) is a light-scattering cover (3) free of luminescent substance.
The invention relates to the outer bulb of a high-pressure discharge lamp, defining a longitudinal axis (A) and closed by pinching at one end. Said bulb contains at least one film associated with a bubble. The bubble acts as an ignition aid, in that said bubble emits UV radiation toward the discharge vessel. The outer bulb preferably has a UV absorbing doping. Said ignition aid is extremely low in cost.
The invention relates to an LED-lighting device (1) comprising an LED-support (5) which is fitted with at least one LED (7) on the front side thereof (6) and the rear side (10) is secured to a support (2). The front side (6) of the LED-support (5) is covered in an arched manner by an electrically insulating, light-permeable and diffuse scattering LED-cover (12) and said LED-cover (12) is covered in an arched manner by a protection cover (16) placed on the support (5).
A phosphor device (21) comprises a carrier member (1), a reflecting member (2) being arranged at the upper face of the carrier member (1), a phosphor layer (3) being embedded in the reflecting member (2) and a transmitting member (4) being arranged on the phosphor layer (3). Exciting light entering the transmitting member (4) and impinging on the phosphor layer (3) is effectively wavelength-converted, reflected by the reflecting member (2) and extracted through the transmitting member (4).
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
The invention relates to a light source unit, which comprises a pump light source (1) for an emission of pump light (2), a phosphor element (3) for a conversion of the pump light (2), and an optical system (6) for transmitting the converted light (4) for a further use, for example to an exit aperture (5) serving as an imager of a projection system. Therein, the pump light (2) is coupled into and transmitted by the optical system (6) to the phosphor element (3).
The invention relates to a lamp (1) comprising a concave reflector (2) and a protrusion (4) protruding from an inner face (3) of the reflector (2), wherein a plurality of light sources (8) radiated onto the inner face (3) of the reflector (2) are disposed on the protrusion (4), the protrusion (4) is implemented as a heat conductor, the light sources (8) are disposed at a tilt angle (α) to a longitudinal axis (L) of the protrusion (4) in the direction of the inner face (3) of the reflector (2) and the light sources (8) are covered by at least one screen (9) blocking direct radiation from the light sources (8) out of the reflector (2).
Provided is an LED line module which can contain a linear LED substrate and which can improve the light extraction efficiency without increasing the number of components. An LED line module (100) is provided with an LED substrate support member (110) for supporting an LED substrate (200) having an LED (210). The LED substrate support member (110) is provided and integral with a substrate storage portion (113) having an opening (1131) on the light irradiation direction (P) side, and a pair of guide portions (1137) for storing substrate side portions (201) on both sides of the LED substrate (200); a reflective portion (111) extending from an edge portion (1132) of the opening (1131) on the irradiation direction (P) side; and a metal heatsink (112) which releases heat generated from the LED substrate (200) formed on the substrate back surface direction (Q) side.
A light source is specified, comprising at least one illumination unit (10, 20, 30) with a plurality of light-emitting diodes, which has a plurality of first light-emitting diodes (1) and a plurality of second light-emitting diodes (2), wherein the first and second light-emitting diodes (1, 2) emit light having mutually different colours, and wherein the plurality of the light-emitting diodes are arranged along a curved curve (4, 4', 4'').
The invention relates to a method for operating a semiconductor device, wherein the semiconductor lighting device comprises semiconductor light sources having at least two different colors, and wherein a brightness of the semiconductor light sources is adjusted by means of a control for setting a color coordinate (F1, F2, F3) of the semiconductor lighting device, and wherein the brightness of the semiconductor light sources is set by means of at least two controls, and wherein upon reaching or exceeding at least one predetermined switchover point a switchover is made between two of the controls. The invention further relates to a color control device, wherein said color control device is designed for carrying out the method.
Divers embodiments relates to a mounting assembly for a lamp, especially a down light, including: a housing (1); an optical component (2) having a sheet edge; and a socket (3) for mounting the optical component (2) to the housing (1), the socket (3) having a loading frame (5) loading the optical component (2), wherein, the loading frame (5) is provided with multiple elastic locking members (6) in the circumference thereof, and the housing (1) is provided with therein multiple corresponding locking grooves (4) that can engage with the elastic locking members (6). This type of mounting assembly is simpler in assembling with reduced assembling time and uses less components. In addition, the present invention also relates to a lamp having the above type of mounting assembly.
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
F21V 29/00 - Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
F21V 3/02 - Globes; Bowls; Cover glasses characterised by the shape
The invention relates to a lamp for a vehicle headlight, which lamp has at least one lighting means (2, 3) which is enclosed in a lamp fitting (1), and a lamp base (4) which is equipped with a plastic base part (44) and electrical terminals (71, 72, 73; 71', 72', 73'; 71", 72", 73"), wherein the electrical terminals (71, 72, 73; 71', 72', 73'; 71", 72", 73") form electrical contact faces, arranged in or on a support face (440; 441) of the plastic base part (44), for fitting contacts (91, 92) of a vehicle headlight.
The invention relates to a circuit arrangement for operating a discharge lamp (FL). The coils (Wh, Wc) of the lamp are heated using a conductor (TR1). In order to identify the lamp, one coil of the conductor is bridged by a resistor (R5).
H05B 41/295 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
H05B 41/298 - Arrangements for protecting lamps or circuits against abnormal operating conditions
97.
REFLECTOR FOR A LAMP, METHOD FOR PRODUCING A REFLECTOR FOR A LAMP AND LAMP COMPRISING SUCH A REFLECTOR
The reflector (1) according to the invention is intended for a lamp and comprises at least one frame (2) having at least one recess (16) and at least one reflector wall (3-6) that is rotatably connected to the frame. The method is used to produce a reflector (1) for a lamp, wherein the reflector comprises a frame (2) having at least one recess (16) and at least one reflector wall (3-6) that is rotatably connected to the frame, wherein the method comprises at least the following steps: injection molding the frame, wherein the frame comprises at least one hinge part (11) having respectively at least one receiving opening (13); injection molding the at least one rotatably connected reflector wall (3-6), wherein the reflector wall (3-6) comprises at least one hinge part (14) having at least one respective pin (15), which is injection molded into a receiving opening (13) of an associated hinge part (11) of the frame (2).
The invention relates to a method for compensating the burn-back of electrode tips in high-pressure discharge lamps, wherein during a predetermined duration the power supplied to the high-pressure discharge lamp is modulated between a lower power and an upper power at a predetermined frequency. The invention further relates to an electronic operating device for operating a high-pressure discharge lamp that performs said method.
H05B 41/288 - Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
H05B 41/392 - Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
H05B 41/292 - Arrangements for protecting lamps or circuits against abnormal operating conditions
99.
SEMICONDUCTOR LAMP AND METHOD FOR OPERATING A SEMICONDUCTOR LAMP
The semiconductor lamp (1) has at least one semiconductor light source (12) and a driver (4) for feeding the at least one semiconductor light source (12), the driver (4) being inductively coupled to the least one semiconductor light source (12) at least for feeding the latter. The method is used to operate a semiconductor lamp (1), wherein power is inductively transferred from a driver (4) to at least one semiconductor light source (12).
The semiconductor luminous device (1) has a heat sink (2) having at least two outer contact surfaces (5, 6) angled with respect to each other and a carrier substrate (11) populated on one side with at least one semiconductor light source (16) and with at least one electronic component (17), wherein the carrier substrate (11) has at least two populated carrier regions (12, 14) which can be angled towards each other along defined bending lines (18, 19) and which are fixed to respective contact surfaces (5, 6). The method is used to produce a carrier substrate (11) which is populated on one side with at least one semiconductor light source (16) and with at least one electronic component (17), and comprises at least the following steps: production of a strip-like endless carrier substrate; population of the endless carrier substrate; and no-waste separation of the carrier substrate (11) out of the endless carrier substrate.
