• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an integrated LED circuit comprising at least one light-emitting diode (6) and at least one electronic circuit (4) assigned to the light-emitting diode (6). The at least one light emitting diode (6) and the associated electronic circuit (4) are arranged on a common substrate (31). The electronic circuit (4) is designed to modulate a current through the assigned light-emitting diode (6) with an information-carrying signal (7.1, 7.2, ..., 7.x). Furthermore, an LED module, an LED arrangement which comprises several such integrated LED circuits (5; 5.1, 5.2, ..., 5.x), and a corresponding lamp are part of the invention.
    公开号:AT17241U1
    申请号:TGM256/2016U
    申请日:2016-10-21
    公开日:2021-09-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    INTEGRATED ARRANGEMENT OF MODULABLE LIGHT POINTS FOR COMMUNICATION USING VISIBLE LIGHT
    The invention relates to an integrated LED circuit with an integrated electronic circuit for communication by means of visible light. A correspondingly designed LED module, a corresponding lighting arrangement and a correspondingly designed lamp are also shown.
    Light-emitting diodes (LEDs) are increasingly being used as light-emitting elements for lighting tasks. One or more LEDs are combined in an LED module with suitable control circuits for supplying the LED with a current and for controlling the light output.
    The international laid-open specification WO 2008/131939 A1 shows an LED module that arranges an LED as an integrated circuit on a silicon support structure. The silicon support structure is a silicon wafer as a mounting base, which is arranged between the bottom of the actual LED semiconductor component on the one hand and a ground plane of the LED module in order to perform electrical insulation, thermal dissipation and compensation of coefficients of thermal expansion.
    The silicon support structure comprises one or more electronic components for controlling the light output of the LED. An electronic component can, for example, ensure the energy supply of the LED semiconductor component. Further electronic components can realize further functions for the LED module. For example, the design of the electronic component as a radio communication device is mentioned. In particular, an arrangement of the radio communication device within the silicon support structure and to the side of the light-emitting LED semiconductor structure is mentioned as advantageous.
    In addition to radio communication methods, light-based communication methods (Visible Light Communication - VLC) that use light as a transmission medium for the transmission of data are known. Such light-based communication methods can have data transmission at both low and high data rates. Examples of light-based communication methods with a low data rate are navigation applications or the output of an identification number, in particular a luminaire identification number for the unambiguous identification of a luminaire. An example of light-based communication with a high data rate is the “Light Fidelity” (short: Li-Fi) transmission method. Li-Fi is particularly suitable for the transmission of image or video data, for example. The term VLC is used below for all types of light-based communication.
    The wavelength of the light used for transmission is in the visible range between 375 nm and 750 nm. Fluorescent lamps or LEDs are used to generate the required light. Transfer rates of up to 10 Kbit / s (for fluorescent lamps) or up to 10 Gbits (for LED) have been achieved. On the receiver side, a photodetector converts light signals with modulated information back into electrical signals. Due to the specific properties of light, this technology is particularly suitable for use as a transmission technology, since light of the corresponding wavelengths is considered harmless to the human eye, can be used almost anywhere and its spatial expansion can easily be limited by optical shielding. Furthermore, license-free use of the frequency spectrum used is possible because it is not regulated.
    The information-carrying signal (data signal) to be transmitted is modulated onto the LED stream of the LEDs used for data transmission by means of a modulator. The modulator is designed as a separate assembly or integrated into the LED control for all LEDs to be controlled together in an operating device (LED converter, ballast). A common, modulated light signal is thus generated for all controlled LEDs. The Sig-
    The bandwidth of the individual LEDs used for VLC transmission thus corresponds to the system bandwidth of the VLC system. The integration of different signals, for example different applications, such as data transmission (streaming), position determination, and signals according to different communication standards for VLC takes place in time division multiplexing. However, this is associated with a disadvantageous increase in the latency of the data transmission.
    It is the technical task of increasing the transmission capacity for data transmission by means of light and when using LEDs to solve compared to the known method.
    The object is achieved by an integrated LED circuit according to claim 1, a corresponding LED module, a corresponding LED arrangement and a corresponding lamp.
    The integrated LED circuit according to the invention comprises at least one light-emitting diode and one of the at least one light-emitting diode associated electronic circuit. The light-emitting diode and the associated electronic circuit are arranged on a common substrate, the electronic circuit being designed to modulate a current through the associated light-emitting diode with an information-carrying signal.
    Thus, according to the invention, the integrated LED circuit can be modulated individually and thus independently of a further integrated LED circuit. Different data signals, data signals according to different communication standards and data signals from different applications can thus be transmitted in parallel via several integrated LED circuits by means of VLC. For a luminaire with a field (array) of integrated LED circuits according to the invention as light-emitting elements, the available bandwidth for data transmission can thus be increased as a result of the integrated LED circuits to be controlled individually and independently of one another according to the number of integrated LED circuits in the field. In addition to time-division multiplexing, space-multiplexing methods for message transmission, in which several signals are combined and transmitted at the same time (simultaneously), and thus a corresponding increase in the data transmission capacity, are possible.
    Compared to the known LED module with an associated radio communication device, according to the invention, a reduced area requirement of the LED semiconductor component is achieved in the emission direction of the LED, since no separate antenna structure has to be provided additionally and electromagnetically decoupled from the other circuit elements. Furthermore, the LED is used both for the lighting function and for generating the carrier signal for communication, while separate circuits for generating a carrier signal are necessary in the known LED module with radio communication device.
    The inventive integrated design of the integrated LED circuit with an associated electronic circuit for VLC communication in a semiconductor module at the same time enables easy handling in production, since the correspondingly designed LED module can be handled as a component, in particular a surface-mounted component, without the need for additional electrical connections. In this case, at least one integrated LED circuit can be accommodated as an LED chip in a chip housing.
    [0014] Further advantageous developments of the invention are shown in the subclaims.
    It is particularly preferred if the integrated LED circuit in the electronic circuit comprises a modulator circuit, and the modulator circuit is set up to modulate a current through the associated light-emitting diode with the information-carrying signal.
    An advantageous integrated LED circuit is characterized in that the electronic circuit comprises a control circuit which is designed to the current through the
    to generate at least one light-emitting diode associated with an electronic circuit.
    Another embodiment of the integrated LED circuit according to the invention is characterized in that the at least one light-emitting diode and the associated electronic circuit are constructed in GaN-on-Si technology (gallium nitride on silicon technology).
    A preferred application of the integrated LED circuit according to the invention has a navigation signal as the information-carrying signal. Another preferred application of the integrated LED circuit according to the invention has the information-carrying signal as a data signal, in particular for the transmission of Internet data.
    It is also particularly advantageous if the integrated LED circuit according to one embodiment comprises the electronic circuit designed such that the associated light emitting diode is to operate as a photodiode, and the electronic circuit generates an information-carrying received signal that carries a photo current through the represented as a photodiode operated light emitting diode. In this way, in VLC communication, a receiver can also be formed by the LED module according to the invention.
    In this way, a return channel for the VLC communication can be provided in a simple manner, which enables further applications for the integrated LED circuit according to the invention using the existing lighting and communication structure of the building.
    The technical problem is achieved by an LED module comprising a plurality of integrated LED circuits according to one of the exemplary embodiments shown. The LED module is characterized in that the electronic circuit assigned to each light-emitting diode is designed to modulate the current through the light-emitting diode with an information-carrying signal independently of another current through another light-emitting diode. The technical object is achieved by an LED arrangement comprising a plurality of integrated LED circuits according to one of the exemplary embodiments shown. The LED arrangement is characterized in that the electronic circuit assigned to each light-emitting diode is designed to modulate the current through the light-emitting diode with an information-carrying signal independently of another current through another light-emitting diode.
    Thus, according to the invention, each integrated LED circuit can be modulated individually and thus independently of another integrated LED circuit. Different data signals, data signals according to different communication standards and data signals from different applications can thus be transmitted in parallel via different integrated LED circuits using VLC communication. For a luminaire with a field (array) of integrated LED circuits according to the invention as light-emitting elements, the available bandwidth for data transmission can thus be increased as a result of the integrated LED circuits that can be controlled individually and independently of one another in accordance with the number of integrated LED circuits in the field. In addition to time-division multiplexing, space-multiplexing methods for message transmission, in which several signals are combined and transmitted at the same time (simultaneously), and thus a corresponding increase in the data transmission capacity, are possible.
    It is advantageous if the LED arrangement is set up so that the individual integrated LED circuits of the plurality of integrated LED circuits each emit light in different space segments of a room, a building and / or an area to be illuminated.
    The technical problem is also achieved by a luminaire comprising an LED arrangement or an LED module or an integrated LED circuit according to one of the exemplary embodiments shown above.
    Further advantages, objectives and features of the invention are set out below on the basis of exemplary embodiments and the accompanying figures. It shows:
    1 shows a system overview for a VLC system using the VLC arrangement according to the invention,
    [0027] FIG. 2 shows an illustration of a known LED circuit, and
    3 shows an illustration of an integrated LED circuit according to the invention for use in an exemplary embodiment,
    The invention is not limited to the exemplary embodiments shown. The features discussed can be combined with one another as required within the scope of the invention defined in the appended claims. The same reference numerals in the figures show the same or corresponding elements, the explanation of which is not repeated for each figure for reasons of brevity.
    Fig. 1 shows an overview for a VLC system 1 using the integrated LED circuit and LED module according to the invention. The VLC system 1 shown shows on the one hand the essential components of the VLC system 1 for the energy supply and control of a plurality of LED modules and / or lights and on the other hand the distribution of the components essential for communication by means of modulated light. 1 does not show, for example, mechanical components, in particular lamp housings, support plates, mounting means, etc., and lighting devices known per se, such as switches, dimmers, etc.
    The individual lighting means are designed in Fig. 1 as light emitting diodes (LED) 6.1, 6.2, ... 6.x. The illuminants 6.1, 6.2, ... 6.x can be distributed, for example, as points of light over a room, a building or a certain area in the open air. Particularly preferably, the individual LEDs 6.1, 6.2, ... 6.x each have a specific emission direction in which the LEDs 6.1, 6.2, ... 6.Xx emit light. This is achieved, for example, by means of a reflector integrated into an LED chip. The direction of emission of an LED 6.1, 6.2, ... 6.x determines a space segment that the LED 6.1, 6.2, ... 6.x prefers and / or exclusively illuminates.
    The individual LEDs 6.1, 6.2, ... 6.x are each arranged on a substrate 5.1, 5.2, ... 5.x. On the substrate 5.1, 5.2, ... 5.x there is also an associated electronic circuit 4.1, 4.2, ... 4.x for each LED. It is advantageous, for example, to design the substrate 5.1, 5.2, ... 5.x as a Si substrate. The integrated LED circuit according to the invention thus comprises the actual light-emitting element light-emitting diode (LED) as an LED semiconductor component (LED chip) in integrated form, as well as an electronic circuit 4.1, 4.2, ... 4.x which is exclusively assigned to this LED. Without restriction, different from that in FIG. 1, several LEDs 6.1, 6.2, ... 6.x can also be assigned to an electronic circuit 4.1, 4.2, ... 4.x. According to the invention, this plurality of LEDs 6.1, 6.2, ... 6.x is also shared with an electronic circuit 4.1, 4.2, ... 4.x assigned to the plurality of LEDs 6.1, 6.2, ... 6.x on a substrate 5.1, 5.2, ... 5.x and form a common integrated LED circuit.
    In Fig. 1, on the one hand, the substrate 5.1, 5.2, ... 5.x with the light-emitting diodes 6.1, 6.2, ... 6.x and the associated electronic circuits 4.1, 4.2, ... 4.x shown. On the other hand, FIG. 1 shows a printed circuit board 13, on which the individual integrated LED circuits, each comprising a single substrate 5.1, 5.2, ... 5.x, are mounted. The circuit board 13 is an essential part of an LED module of a light.
    The electronic circuit 4.1, 4.2, ... 4.x fulfills two essential tasks within the scope of the invention. On the one hand, the electronic circuit 4.1, 4.2, ... 4.x comprises a control circuit that generates a current (diode current) for controlling the LED 6.1, 6.2, ... 6.x of the associated LED chip. To control the LED 6.1, 6.2, ... 6.x with the current intensity required for the correspondingly specified light output, the electronic circuit 4.1, 4.2, ... 4.x in FIG. 1 is via the power supply line 8 and the power supply lines 8.1, 8.2, ... 8.x of the individual integrated LED circuits supplied with a feed current by an operating device 2. The operating device 2 fulfills in addition to the provision of a current
    For the integrated LED circuits, additional functions such as electrical isolation, in particular providing a SELV barrier, are known per se. For this purpose, the operating device 2 is connected on the input side to a building-side power supply 10.
    The operating device 2 can, for example, also perform control functions, for example dimming, for controlling the light output of the integrated LED circuits. A communication interface, for example based on a standard such as DALITM, can also be integrated into the operating device 2.
    According to the invention, the electronic circuit 4.1, 4.2, ... 4.x also includes a modulator circuit. This modulator circuit of the electronic circuit 4.1, 4.2, ... 4.x is set up to receive a diode current generated by the control circuit and an information-carrying signal 7.1, 7.2, ... 7.x as input signals and a current modulated with the information-carrying signal 12.1, 12.2, ..., 12.x to the at least one light-emitting diode 6.1, 6.2, ... 6.x assigned to the respective circuit for controlling the light output of the light-emitting diode 6.1, 6.2, ... 6.x.
    The modulation of the light-emitting diode 6.1, 6.2, ... 6.x takes place in one embodiment by modulating a current. The modulator circuit of the electronic circuit 4.1, 4.2, ... 4.x can also be designed as a controllable current source. The modulator circuit of the electronic circuit 4.1, 4.2, ... 4.x, designed as a controllable current source, generates a modulated current 12.1, 12.2, ..., 12 from a constant voltage on the power supply lines 8.1, 8.2, ... 8.x x and with the modulated current 12.1, 12.2, ..., 12.x feeds the LEDs 6.1, 6.2, ... 6.X.
    The modulator circuit of the electronic circuit 4.1, 4.2, ..., 4.x can use a known modulation method for modulating the current provided by the drive circuit, for example amplitude modulation but also other modulation methods that can be used for VLC Current through the one or more associated light emitting diodes 6.1, 6.2, ... 6.x with the information-carrying signal 7.1, 7.2, ... 7.X * on the integrated LED circuit in that of the respective one or more light emitting diodes 6.1, 6.2 , ... 6.x associated electronic circuit 4.1, 4.2, ..., 4.x takes place.
    In FIG. 1, the information-carrying signal 7.1, 7.2, ... 7.x is transmitted to the individual electronic circuits 4.1, 4.2, ..., 4.x via a bus line 7 from a VLC control unit 3. The information-carrying signal 7.1, 7.2,. It is essential for the procedure according to the invention that the electronic circuit 4.1, 4.2, ..., 4.x of each LED chip receives a specific information-carrying signal as an input variable in order to be integrated in the individual LED chip and specifically for the LED chip. Chip to modulate the light output with the information-carrying signal.
    In addition to the interface to the individual LED chips, the VLC control unit 3 also has a data interface, for example to a network 11 via which the data and information of the information-carrying signal 7.1, 7.2, ... 7.x to the VLC Control unit 3 are transferred.
    The VLC control device 3 is shown separately from the operating device 2 in FIG. The VLC control device can also be designed to be fully integrated into the operating device 2 or with some of its functions.
    The VLC control unit 3 is advantageously designed to generate information-carrying signals according to different communication standards, for different applications and with different data content, to process and to the individual electronic circuits 4.1, 4.2, ..., 4.x of the respective Forward LED chips. This makes it possible to send different VLC signals simultaneously via a plurality of LEDs 6.1, 6.2, ... 6.x. The entire bandwidth available to the VLC system, and thus the transmission capacity of the VLC system, increases significantly due to the integrated LEDs 6.1, 6.2, ... 6.x with VLC-suitable modulator circuits implemented in the LED chip electronic circuit 4.1, 4.2, ..., 4. * x compared to a central and thus uniform
    performed modulation with the information-carrying signal.
    For example, a field (array) of 4x4 LED chips designed according to the invention can theoretically increase the available transmission bandwidth up to 16 times that of a central modulation of the array with an information-carrying signal. Such LED arrays can also be implemented in particular by means of hybrid integration using GaN on silicon. In this exemplary embodiment, the LED module comprises an array of integrated LED circuits with individually addressable LEDs 6.1, 6.2, ... 6.x as well as associated electronic circuits 4.1, 4.2, ..., 4.x for the respective, separate and thus independently executable modulation of the light output of the individual LEDs 6.1, 6.2, ... 6.x.
    Optionally, the corresponding control circuit for the individual LEDs 6.1, 6.2, ... 6.x is to be arranged in the LED module according to this embodiment. This enables extensive recourse to automated assembly of LED chips as surface-mounted devices (SMD) in the production and assembly of the components of a VLC-capable lighting system, and additional wiring of separate modulation circuits is not required.
    The invention can be used particularly advantageously in the context of a navigation system for use within closed rooms and within buildings. Here, the information-carrying signal contains location-specific information for each or at least for several electronic circuits 4.1, 4.2, ..., 4.x and thus for the assigned one or more LEDs 6.1, 6.2, ..., 6.x. A receiver of the location-specific information transmitted by an LED 6.1, 6.2, ..., 6.x by means of modulation of the emitted light can be demodulated and evaluated, for example by comparing the received location-specific information with location information stored centrally in a database of the transmitting LED 6.1 , 6.2, ..., 6.x, determine information about its position in the illuminated area. Position determination within an illuminated area is thus possible in a simple manner.
    The location-specific information determined by the receiver can be evaluated decentrally in the receiver or centrally in a positioning server. For this purpose, as an alternative or in addition to a radio method for the transmission of the received and demodulated location-specific information, a return channel by means of VLC can be provided in the VLC system 1 according to the invention.
    A return channel is not explicitly shown in FIG. 1. A return channel according to an exemplary embodiment of the invention comprises, for example, an electronic circuit 4.1, 4.2, ..., 4.x, which is designed for the assigned one or more LEDs 6.1, 6.2, ..., 6.x as a photodiode to operate. Furthermore, the electronic circuit 4.1, 4.2, ..., 4.x according to this exemplary embodiment includes circuits which are designed to generate an information-carrying received signal that sends a photocurrent through the one or more LEDs 6.1, 6.2, ... operated as a photodiode. , 6.x represents. The information-carrying received signal is then to be transmitted to the VLC control device 3 via the connection, which is bidirectional in this exemplary embodiment, for example bus connection 7, and is to be further processed there in accordance with the application, for example a navigation application. In the context of a navigation application, this can be, for example, the transmission of information from the received signal, in particular a luminaire address or identification information from an integrated LED circuit or LED module, to the positioning server.
    Furthermore, signals according to different standards and different protocols can be transmitted in parallel via different integrated LED circuits of an LED arrangement or an LED module. It is essential for this that the electronic circuits 4.1, 4.2, ..., 4.x of different integrated LED circuits the current 12.1, 12.2, ..., 12.x through the respectively assigned LEDs 6.1, 6.2, ..., 6.x can modulate independently of each other with different information-carrying signals 7.1, 7.2, ..., 7.x. The range of uses, in particular with regard to the use of different VLC standards and different applications, such as streaming and navigation, and the data transmission capacity of a lamp designed according to the invention with a plurality of inventions
    proper LEDs 6.1, 6.2, ..., 6.x increases accordingly.
    FIG. 2 shows an illustration of a known LED arrangement, from which advantages of the invention become clear in connection with FIG. 1. A known LED arrangement 20 comprises an LED 21 which is arranged on a surface of a carrier structure 23. The LED arrangement 20 also has a reflector in an upper region 22 and, for example, layers that influence the light output, for example a phosphor layer 24, possibly also optical elements such as lenses. The carrier structure 23 is shown in FIG. 2 with several layers, which show the conductor structures 25 necessary for the control of the LED 21, contacts by means of vias, as well as integrated circuit elements.
    It is further shown in Fig. 2 that the LED 20 in a first sub-area 26 comprises the above-mentioned structures and elements necessary for the task of light emission, while in a second sub-area 27 further structures and elements are arranged, which one serve for communication by means of radio waves. Parts of the surface of the LED 20 for the emission of light 28 in a first area 26 and parts of the surface of the LED 20 in a second area 27 with antenna structures for the emission of radio waves 29 are thus required and arranged on the LED 20.
    A comparison of the known LED 20 in FIG. 2 with an integrated LED circuit 30 according to the invention according to FIG. 3 shows another advantage of the integrated LED circuit 30 according to the invention: The embodiment shown in FIG. 3 integrates the communication function by means of VLC at the level of the integrated LED circuit 30. The electronic circuit 4, 4.1, 4.2, ..., 4.x comprises a modulator circuit which generates the information-carrying signal for modulating the current 12.1, 12.2, .. which determines the emitted light 31. ., 12.x through the LED 21. However, this means that an antenna structure that is extended in terms of area is not necessary for a radio communication component running in parallel, which generates a corresponding area requirement on the surface of the LED module 30, for the performance of the communication function. The degree of freedom for the designer increases accordingly when using the invention. The arrangement of the electronic circuit 4, 4.1, 4.2, ..., 4.x in the immediate vicinity of the LEDs 6.1, 6.2, ..., 6.x further enables an optimal signal-to-noise ratio. to-Noise-Ratio, SNR for short) when amplifying the information-carrying signal. It is thus possible to modulate signals with very low strength on the emitted light or to receive and evaluate them by the receiver.
    权利要求:
    Claims (10)
    [1]
    Claims 1. Integrated LED circuit, comprising at least one light-emitting diode (6) and at least one of the light-emitting diode (6) associated electronic circuit (4),
    wherein the light-emitting diode (6) and the associated electronic circuit (4) are arranged on a common substrate (31), and
    the electronic circuit (4) is designed to modulate a current through the at least one associated light-emitting diode (6) with an information-carrying signal (7.1, 7.2, ..., 7.X).
    [2]
    2. Integrated LED circuit according to claim 1, characterized in that the electronic circuit (4) comprises a modulator circuit, and the modulator circuit is set up to modulate a current through the associated light-emitting diode with the information-carrying signal (7).
    [3]
    3. Integrated LED circuit according to one of claims 1 or 2, characterized in that the electronic circuit (4) comprises a control circuit which is designed to generate the current through the associated light-emitting diode (6).
    [4]
    4. Integrated LED circuit according to one of claims 1 to 3, characterized in that the light-emitting diode (6) and the associated electronic circuit (4) is constructed in GaN-on-Si technology.
    [5]
    5. Integrated LED circuit according to one of claims 1 to 4, characterized in that the information-carrying signal (7) is a navigation signal and / or data signal.
    [6]
    6. Integrated LED circuit according to one of claims 1 to 5, characterized in that
    that the electronic circuit (4) is further designed to operate the associated at least one light-emitting diode (6) as a photodiode, and
    to generate an information-carrying received signal which represents a photocurrent through the light-emitting diode (6) operated as a photodiode.
    [7]
    7. LED module comprising at least one integrated LED circuit (5; 5.1, 5.2, ..., 5.x) according to one of claims 1 to 6, characterized in that
    that the at least one integrated LED circuit (5; 5.1, 5.2, ..., 5.x) is arranged on a printed circuit board (13), and
    that the electronic circuit (4; 4.1, 4.2, ..., 4.x) assigned to each at least one light-emitting diode (6; 6.1, 6.2, ..., 6.x) is designed to control the current through the light-emitting diode (6 ; 6.1, 6.2, ..., 6.x) with an information-carrying signal (7.1, 7.2, ..., /. X) independently of another stream (7.1, 7.2, ..., 7 / .x) to modulate another light emitting diode (6; 6.1, 6.2, ..., 6.X).
    [8]
    8. LED arrangement comprising a plurality of integrated LED circuits (5; 5.1, 5.2, ..., 5.x) according to one of claims 1 to 6, the LED arrangement characterized in that
    that the electronic circuit (4; 4.1, 4.2, ..., 4.x) assigned to each at least one light-emitting diode (6; 6.1, 6.2, ..., 6.x) is designed to control the current through the light-emitting diode (6 ; 6.1, 6.2, ..., 6.x) with an information-carrying signal (7.1, 7.2, ..., 7 / .x) independent of another current (7.1, 7.2, ..., 7 / .x) to be modulated by another light emitting diode (6; 6.1, 6.2, ..., 6.X).
    [9]
    9. LED arrangement according to claim 8, characterized in that
    that the individual integrated LED circuits (5; 5.1, 5.2, ..., 5.x) of the plurality of integrated LED circuits (5; 5.1, 5.2, ..., 5.x) each emit light into different space segments .
    [10]
    10. Luminaire comprising an integrated LED circuit according to one of claims 1 to 6, or an LED module according to claim 7, or an LED arrangement according to one of claims 8 or 9.
    In addition 3 sheets of drawings
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    申请号 | 申请日 | 专利标题
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