CN107304979B

CN107304979B - Configurable flat lighting device

Info

Publication number: CN107304979B
Application number: CN201610915980.7A
Authority: CN
Inventors: 周子献
Original assignee: Nanogrid Ltd
Current assignee: Nanogrid Ltd
Priority date: 2016-04-22
Filing date: 2016-10-20
Publication date: 2020-05-15
Anticipated expiration: 2036-10-20
Also published as: CN107304979A; CN206617770U

Abstract

The invention discloses a configurable flat lighting device comprising a frame of flat shape consisting of a plurality of edges; a light guide member provided in the frame; the light guide member is arranged in a combined area of two adjacent edges of the frame, and is configured to completely cover the light emitting surfaces of the LED bags and guide light out of the light guide member; and a connecting assembly disposed on an edge of said frame and configured such that a plurality of said configurable flat lighting devices are grouped together and in electrical communication with each other. The configurable flat lighting device of the present invention is designed in a flat shape and can be placed in any position. The magnetic locking mechanism specially designed on each device can be used for randomly combining two or more devices, so that the overall brightness is improved, and the dead angle problem of illumination is solved. In addition, the combined structure can be adjusted to adapt to the environmental requirements.

Description

Configurable flat lighting device

Technical Field

The present invention relates to a lamp, and more particularly, to a flat illumination device with expandable function.

Background

The lighting design of a space involves many factors of light. The luminaire designer Richard koly (Richard Kelly) defines key variables for lighting fixtures. In addition to the brightness of the space, the lighting device should take into account the distribution of light in the space, the spectral characteristics of the light and the direction of the main transparent light region with respect to the viewing line. It has been found that the subjective impression of space, including the perception of size, depends on these variations. The following factors are shown quantitatively in fig. 1 to be independent of one another: how bright the space is, how uniform the light is distributed, the position of the light source, and the occupancy feeling of the space size, as shown in fig. 1, the qualitative relationship graph of the light design in the space and the human visual feeling, wherein the design factors include the uniformity of the light distribution, the brightness of the space, the position of the lamp, and the human perception of the occupied space size. In the space 10, after the light is placed, the space changes from dark to bright in the transition from 110-120; in the transition from 150 and 160, the distribution of light changes from uniform to non-uniform; where 130 represents the surroundings of the space and 140 is the headspace. It can be seen in fig. 1 that at positions 170 to 180, the overall brightness space is changed from large to small. In the early 2000, the human eye was found to have autonomic photosensitive ganglion cells, which are not visually related, but regulate the day and night rhythm. These cells can be widely activated by blue light and inhibit melatonin production which induces sleep in mammals. The light at midday is rich in blue light, and the light at evening changes towards the wavelength of red light. This is the optical rhythm condition that humans are facing. Many studies have shown that artificial lighting can undermine the health hazards of these rhythms. Thus, the combination of spatial and spectral properties of light is a powerful mix of spatial designs, which are not just suitable for function, but for the well-being of their occupants. A good example is the difference in lighting at lunch and evening-out restaurants. The former light typically lights the fixtures on the head of the customer in the restaurant, resulting in light containing more blue wavelengths, so the former lighting is typically active and formal. The latter light is usually relaxed and intimate by illuminating a light fixture near the customer, such as a ceiling lamp above a table or illuminating a table, to produce dim light having a more red wavelength. Other lighting applications that have recently received similar considerations regarding human factors are not only relevant for brightness control in schools, care facilities or large street lights. The foregoing are all examples of luminaire lighting beyond space lighting. However, the placement and spectrum of light is helpful to the atmosphere, function of the space, and potentially beneficial to the health of people living in the space.

Light Emitting Diodes (LEDs), a semiconductor, emit light in a narrow band of wavelengths when direct current passes through a p-n junction. The material composition of the LED determines the structure of the strip, in addition to the spectrum of the light. Some examples of LED compositions include: gallium arsenide, gallium phosphide, and gallium nitride. LEDs emit variable amounts of visible light, such as violet, blue, green, amber, red, and some non-visible light, such as ultraviolet light. Many LED lamps emit white light that is a mixture of light having multiple different wavelengths. One way to obtain a white light mixture is to combine LEDs made of different materials that produce different types of light, either by mixing with some secondary optical element, such as a lens, or by scattering the light through small particles or structural irregularities in the material before the light is illuminated into space. Other approaches have been to reduce the total energy by applying a secondary phosphor that absorbs light non-uniformly over a blue or violet LED, followed by a reduction in the freedom of the phosphor atoms to vibrate before emitting light of lower energy, longer wavelengths. Although examples of the former method also exist, particularly in the form of a so-called red-blue-green (RGB) lamp, the latter method is a method commonly employed by commercially available LEDs due to its simpler structure. It is well known in the RGB lamp art and through lighting that LEDs of different materials react differently to heat. It is known that LEDs output more lumens of light in the non-heat dissipating mode due to the increase in temperature. Some types of LEDs release more than others, where GaP LEDs are particularly prone to reduced free flow as temperature increases. A number of methods may be employed including the use of a feedback loop to eliminate any significant deviation in the color tone sum. The relatively narrow spectrum of emission is in part responsible for the higher efficiency of LEDs over conventional incandescent lamps that emit a broad spectrum of light by thermal radiation including a large number of non-visible wavelengths.

Whereas LEDs are semiconductors, they are typically mounted on a Printed Circuit Board (PCB) of the lamp. PCBs are also substrates for electronic components such as microcontrollers and processors. Therefore, the hardware of the LED lamp is easy to expand and is added into a computing device. This is the basis for a connected LED lamp or smart lamp. The microcontroller may contain logic to vary the current that drives many LEDs in the lamp. In lamps with LEDs of different spectra, different relative currents cause the mixed spectrum to change, which makes the lamp color tunable. The signal from the microprocessor may in turn originate from a wireless signal received by an integrated antenna, or it may be received via a wired connection. However, regardless of the method of reception, the control of multiple types of LEDs means that the control aspect is not merely a bi-directional control, such as an on/off control, or a one-dimensional control, such as a standard dimmer switch. This limits the intuitive interface provided to the user from interacting with the lamp or luminaire. As mentioned above, the control interface faces significant challenges in view of the optimized additional variables in the functional lighting design of a space.

Therefore, a new lamp is needed to solve the above technical problems, so that the lamp not only has an intuitive and interactive interface, but also can be combined and configured at will to meet different requirements of different occasions and environments for light.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a novel lighting device which is flat, can be freely combined into a plurality of colorful LED lamps, and can meet the requirements of different occasions and environments on light.

The invention adopts the following technical scheme to realize the purpose:

a configurable flat lighting fixture, comprising:

a frame having a flat shape composed of a plurality of sides;

the light guide part is arranged in the frame and is made of a material which is completely or partially transparent to visible light, so that the light which is injected into the light guide part is completely or partially changed in direction or is injected out in a direction perpendicular to the light guide part;

a plurality of LED packages with light-emitting surfaces, which are arranged in the combined area of two adjacent edges of the frame and are configured to be completely covered by the light guide member, wherein the light guide member guides the light emitted by the LED packages out of the light guide member completely, extracts the light and then emits the light out of the light guide member; and

a connecting assembly disposed on an edge of said frame and configured to couple together and electrically communicate with each other a plurality of said configurable flat lighting devices.

According to the configurable flat lighting device, the light guide part comprises a light guide area, and light extraction points uniformly arranged on the light guide area are arranged on the light guide area. In one embodiment, the thickness of the light guide is 2mm to 10mm thicker than the smallest dimension of the light emitting face.

According to the configurable flat lighting device, the light reflecting pieces are arranged on the periphery of the light guide piece, so that light which is emitted from the LED package to the end part of the light guide piece and is not extracted by the light guide piece is reflected back to the light guide piece and is extracted. In one embodiment, the light reflecting member is an adhesive tape.

According to the configurable flat lighting device of the present invention, the connecting assembly comprises a magnetic locking mechanism disposed at the joint area of two adjacent edges of the frame, so as to connect and electrically communicate a plurality of the flat lighting devices.

Further, the frame may comprise an equilateral triangle, square, pentagon or equilateral hexagon.

According to the configurable flat lighting fixture of the present invention, said magnetic latching mechanism comprises a male connector and a female connector, wherein said male connector comprises:

a fixing block fixed to the frame by an elastic member and a projection;

the magnetic part is arranged on one side of the fixed block, wherein the outward directions of the magnetic part have the same polarity; and

the electric connecting piece is arranged on the fixed block;

the female joint includes:

the interface is arranged on the other side of the frame, and the size of the interface is equivalent to that of the fixed block;

the magnetic piece is arranged in the interface, and the outward sides of the magnetic piece have the same polarity; and

an electrical connector disposed within the interface;

wherein when said flat lighting devices are brought into proximity, said magnetic elements attract each other and insert said mounting block into said interface against gravity and shear forces to group a plurality of configurable flat lighting devices together and to electrically interconnect electrical connections.

Further, the fixed block is made of plastic, non-magnetic materials or wood; the elastic piece is a spring.

Furthermore, the electric connecting pieces are arranged at two ends of the fixed block, and the magnetic pieces are arranged between the electric connecting pieces of the fixed block.

According to the configurable flat lighting device of the invention, the fixing block in the male connector comprises a rod-shaped member which is telescopically arranged in the telescopic position of the frame through a spring, and the fixing block in the female connector is aligned and combined with the fixing block in the male connector.

Preferably, the electrical connector is a single pin spring connector or a compression connector or a two-piece connector.

According to the configurable flat lighting device of the present invention, the frame is provided with:

a hollow region in which a cylindrical magnetic member is provided so that the magnetic member rolls in the hollow region;

the electric connecting piece is arranged on the magnetic piece;

wherein, when the flat lighting devices are close, the magnetic members roll in the hollow area to attract each other, combine a plurality of configurable flat lighting devices together to form a three-dimensional assembly against gravity and shear force, and combine the electrical connection members to each other for electrical communication.

Further, the electric connector is a plurality of metal connecting terminals respectively arranged inside and outside the magnetic member, wherein the metal connecting terminals inside are connected with the electronic member in the configurable flat lighting device, and the metal connecting terminals outside are wound on the magnetic member.

In one embodiment, the metal connection terminal includes a bent metal strip and a metal pad disposed on the PCB, wherein the metal pad is disposed on the metal strip.

Further, the PCB is provided with a ridge to restrict movement of the PCB as a connection bridge.

Preferably, the PCB is provided with a plastic cantilever and a pressing mechanical part, and an external force is applied to the pressing mechanical part through the plastic cantilever to combine terminals on the PCB with each other to realize electrical communication.

According to the configurable flat lighting device, the configurable flat lighting device is provided with the unique identification feature, and the configurable flat lighting device is communicated with the intelligent terminal through the network so as to control different configurations of light emitted by a plurality of interconnected flat lighting devices.

Further, the different configurations of the light include: a color configuration, a brightness configuration, a light up and down and left and right translation configuration, a light rotation configuration, and a light mirror configuration.

The configurable flat lighting device of the present invention breaks through the constraint of the traditional lighting fixtures, is designed in a flat shape, and can be placed at any position. The magnetic locking mechanism specially designed on each lighting device can be used for randomly combining two or more devices, so that the overall brightness is improved, and the dead angle problem of illumination is solved. The combined structure can be adjusted according to the lamps with different colors arranged on each device, and the lamps with different colors and adapted to different environments can be emitted. The flat lighting device and the combination thereof have the unique identity identification mark, can be manually controlled in the light-emitting state of each device with the identity through a touch screen of the mobile terminal through a wireless network with a mobile terminal, such as a mobile phone or a tablet personal computer, and are configured differently, so that the use efficiency and the scene of the lamp are improved.

Drawings

FIG. 1 is a diagram illustrating a qualitative relationship between human perception of space and lighting design in the prior art;

FIG. 2 is a schematic block diagram of one embodiment of the configurable flat lighting fixture of the present invention;

FIG. 3 is a schematic diagram of a plurality of configurable flat lighting devices of FIG. 2 connected in a two-dimensional combination;

FIG. 4 is a schematic structural view of an end connection assembly of the configurable flat lighting fixture of FIG. 1;

FIG. 5 is a schematic diagram of one embodiment of a connection assembly for a configurable flat lighting fixture;

FIG. 6 is a schematic structural view of another embodiment of a connection assembly of the configurable flat lighting fixture;

FIG. 7 is a schematic view of the connection assembly shown in FIG. 6 shown disconnected;

FIG. 8 is a schematic structural view of the linkage assembly shown in FIG. 6; (ii) a

FIG. 9 is a schematic structural view of one embodiment of a connection assembly for a three-dimensional assembly of the configurable flat lighting fixture of the present invention;

FIG. 10 is a schematic view of the connection assembly of the configurable flat lighting device of the present invention with a PCB board added for connection;

FIG. 11 is a schematic structural view of the mounted connection assembly of the configurable flat lighting fixture of the present invention in a three-dimensional configuration; FIG. 12 is a schematic view of the configurable flat lighting fixture of the present invention after three-dimensional assembly, showing the assembly of 3 configurable flat lighting fixtures; and

fig. 13 is a schematic view showing magnetic poles of 6 magnets arranged with each other, and the dotted lines in the figure show the attractive connection relationship between the magnets of the lighting unit.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

Fig. 1 shows a schematic structural diagram of a configurable flat lighting device 20 according to an embodiment of the present invention, wherein the device 20 includes a frame 220, a light guide 210, a light source 230 and a connecting assembly 240, wherein the light source 230 is in the form of an LED light package.

The frame 220 has a flat shape with a plurality of sides, such as a 3-sided polygon, a 4-sided polygon, a 5-sided polygon, a 6-sided polygon, or other polygons. Generally, an equilateral triangle is preferred.

The light guide 210 is disposed in the frame 220 and is made of a material that is completely or partially transparent to visible light, so that light incident into the light guide 210 is completely or partially redirected or emitted perpendicularly to the light guide 210. Generally, the surface area for the incoming light is much smaller than the area for light extraction, e.g. 10-1000 times different. The light guide 210 is made of polymethyl methacrylate (PMMA), Polycarbonate (PC) or the like. The refractive index of the polymeric material is greater than 1, typically between 1.4 and 1.5. Since the refractive index is greater than that of light in air, light passing through the light guide 210 is totally reflected within the light guide 210. This indicates that light will not exit the light guide 210 unless the angle of incidence is greater than the critical value calculated by Snell's Law. Therefore, the light guide 210 can guide the light emitted from the light source 230 completely without scattering.

A plurality of LED packages with light emitting surfaces, disposed in a combined region of two adjacent edges of the frame, and configured such that the light guide member 210 completely covers the light emitting surfaces of the plurality of LED packages, wherein the light guide member 210 guides light emitted from the plurality of LED packages out of the light guide member completely, extracts the light, and emits the extracted light from the light guide member; and

and the connecting assembly is arranged on the edge of the frame so as to configure a plurality of the configurable flat lighting devices to be combined together and to be electrically communicated with each other.

According to the configurable flat lighting device of the present invention, the light guide 210 includes a light guide region, and the light guide region is provided with light extraction points uniformly arranged on the light guide region. To enable the light to illuminate the environment, the light must be extracted or outcoupled from the light guide 210. The extraction is operated such that the light rays are redirected beyond a critical value of the angle of incidence according to snell's law and the material properties of the light guide 210. The extraction method can adopt any method in the prior art. The conceptually simplest approach is to arbitrarily and non-uniformly integrate small reflective particles, such as titanium dioxide, into the light guide 210 to form a light guide region, such as the triangular middle portion of FIG. 2. Light near the particles is scattered and travels through the light guide 210, particularly some light is emitted at an angle relative to the inner surface of the light guide 210 and the ambient air that causes the light to exit the light guide 210. As long as the particles are small enough and not uniformly distributed, the panel with significant non-uniform illumination by the light is directed toward the light guide 210. Other methods of extracting light include the use of rough surfaces, such as laser, silk screen, etched or engraved surfaces. Light is extracted by the structural change of the surface of the light guide 210. The above-described methods may be used alternatively.

Further, according to an embodiment of the configurable flat lighting device of the present invention, the light guide 210 is provided with light reflectors around the periphery thereof, so that the light emitted from the LED package to the end of the light guide 210, which is not extracted by the light guide 210, is reflected back to the light guide 210 and extracted. In one embodiment, the light reflecting member is an adhesive tape (not shown). This can be seen as a cycle in which light from the light source 230 passes through the light guide 210 again. The reflectivity of the tape can be very high, in excess of 95%, or even in excess of 99%. Other methods may be to modify the edge structure to increase the likelihood of total reflection, with similar results to reflective tape, without the need to add components. This changes the visual appearance of the edge unless it is hidden in some non-transparent structural element, such as an aluminum frame.

In view of the aforementioned characteristics of the light guide 210, the light guide 210 can be made relatively thin. The minimum dimension of the light-emitting surface of the LED package is only a few millimeters. The light guide 210 must completely cover the light emitting surface of the LED package. The thickness of the light guide member 210 is preferably 2mm-10mm thicker than the minimum dimension of the light emitting surface, so that the light guide member 210 can fix other elements, manage the heating condition of the LED, or safely cover the electronic elements providing the LED direct current.

Further, the geometry of the luminaire may be essentially any two-dimensional structure. Preferably an equilateral triangle, as shown in fig. 2. Because equilateral triangles are the simplest two-dimensional structures, all triangles are the most symmetrical and the triangles do not overlap or have a pitch when tilted. Such a mechanism allows equilateral triangles to be made in a variety of combinations or in three-dimensional configurations.

As shown in fig. 3, in order to increase the lighting effect and change the indoor lighting atmosphere, it is necessary to combine a plurality of the configurable flat lighting devices 20 of the present invention, that is, the edges of each equilateral triangle are combined to realize connection fixing and electrical communication, so as to ensure that each configurable flat lighting device 20 can be lighted.

As shown in fig. 4, according to an embodiment of the present invention, the connection method of the present invention forms a connection assembly by disposing a magnetic locking mechanism 240 at the joint area of two adjacent sides of the frame (i.e., near the vertex of each inner corner of the triangle) to connect and electrically communicate a plurality of the flat lighting devices 20.

Referring to fig. 2 and 5, according to an embodiment of the present invention, the configurable flat lighting device according to the present invention can be regarded as a lighting unit, and the magnetic locking mechanism 240 includes a male connector and a female connector, which are physically fixed and electrically connected by a combination of them, wherein the male connector includes:

a fixing block 243 fixed to one side of the frame 220 by an elastic member 242 and a protrusion 241;

a magnetic member 244 disposed at one side of the fixed block 243, wherein the magnetic members 244 have the same polarity in an outward direction; and

an electrical connector disposed on the fixing block 243;

the female joint includes:

an interface, which is provided at the other side of the frame 220 and has a size corresponding to the fixing block 243;

a magnetic member 245 provided in the interface, the outward sides of which have the same polarity; and

an electrical connector disposed within the interface;

wherein, when the flat lighting device 20 is close to, the

magnetic members

244 and 245 attract each other due to the difference of polarities, and the attraction force of the two will overcome the gravity and shearing force of the frame 220 itself to insert the fixing block 210 into the interface, so as to combine a plurality of configurable flat lighting devices 20 together and make the electrical connections combine with each other to realize the electrical communication.

It should be understood that the two

magnetic members

244 and 245 are arranged so that they have opposite polarities to attract each other, and the attraction is sufficient to overcome their own weight to physically connect the two devices 20. Meanwhile, the electric connector, such as an electric terminal, combines two terminals to realize the effect of electrifying when the two terminals are combined. The arrangement breaks through the connecting technology of the traditional lamp, can be physically fixed, and simultaneously can simply realize electric communication, does not need to add any additional mechanical structure to realize connection fixation and electric communication, changes the connecting relation of the traditional object, and has unique innovation and technical progress.

Further, in the above embodiment, the fixing block 241 may be made of plastic, non-magnetic material, or wood. Preferably, the elastic member 242 is a spring, and the magnetic member is a magnet.

Further, the electric connection members are provided at both ends of the fixed block, and the magnetic member is provided between the electric connection members of the fixed block (not shown).

It should be understood that the following mechanical conditions should be met for the activation of the connection: firstly, the magnetic force for pushing the fixed block into the interface is enough, so that the fixed block can enter the interface without the action of external force; secondly, as the fixed block enters the interface, the attractive magnetic force is continuously greater than the elastic force of the spring so as to ensure the stability; third, when the anchor block is extended in its retracted position, a force equal to the attractive force of the magnet occurs, which defines the equilibrium position of the anchor block in the fully connected state of the magnetic block.

Since the fixing block 241 of the one unit is inserted into the interface of the other unit and a complete connection is achieved, the whole structure can lock the two lighting units so that the two units remain fixed under shear forces in the plane of the two units and under shear forces perpendicular to the plane of the units. Furthermore, the magnetic force prevents separation of the two units.

The convenience of the magnetic locking mechanism 240, the firmness of the shearing force and the separating force can be adjusted by adjusting the elasticity of the spring, the depth of the interface and the extension point of the primary spring of the magnitude of the magnetic moment into a highly linear region.

Referring to fig. 6-8, in another embodiment of the present invention, the fixing block 246 of the male connector of the configurable flat lighting device 20 of the present invention comprises a rod-like member 249 telescopically disposed in the frame 220 in a telescopic position by a spring 242, and the fixing block 246 of the female connector is aligned with and coupled to the fixing block of the male connector. The rod-shaped member 249 is provided with a magnetic member, and the other fixing member is provided with a connector. In this embodiment, a magnet and an electrical connector are disposed on one fixed block, and an interface corresponding to the magnet and the electrical connector is disposed on the other fixed block, as shown in the figure, the middle interface 248 corresponds to the electrical connector 2481, and the outer interface 247 is a magnet, and corresponds to and attracts the magnet of the other fixed block. Such a combination of magnetic and electrical allows both to lock the two lighting units on a single plane and to maintain the electrical connection of the two units without the aid of additional other elements.

Preferably, the electrical connector is a single pin spring connector (Pogo pin connector) or a compression connector (compression connector) or a two-piece connector (two piece connector).

The planar connection of two lighting units is described above, and the following design is a three-dimensional connection. As shown in fig. 9-12, according to an embodiment of the configurable flat lighting device 20 of the present invention, the frame 220 has:

a hollow area 300 in which a cylindrical magnetic member 310 is provided so that the magnetic member 310 rolls in the hollow area 300;

the electric connecting piece is arranged on the magnetic piece 310;

wherein, when the flat lighting devices are close, the magnetic members 310 roll in the hollow area 300 to attract each other, combine the plurality of configurable flat lighting devices 20 together to form a three-dimensional assembly against gravity and shear force, and combine the electrical connectors to each other for electrical communication. Wherein, the electrical connectors of the lighting units combined in pairs are mutually inserted into the interface 248 on the frame 220 to realize the electrical communication.

Further, the electrical connector is a plurality of metal connecting terminals 330 respectively disposed inside and outside the magnetic member 310, wherein the metal connecting terminals inside are connected to the electronic components inside the configurable flat lighting device, and the metal connecting terminals outside are wound around the magnetic member 310.

As shown in fig. 10, in one embodiment, the metal connection terminal includes a bent metal strip and a metal pad disposed on the PCB 340, wherein the metal pad is disposed on the metal strip. The frame is provided with an interface 330 for inserting the PCB to achieve mutual connection.

Further, the PCB 340 is provided with a ridge to limit the movement of the PCB 340 as a connection bridge. Preferably, the PCB is provided with a plastic cantilever and a pressing mechanical part, and an external force is applied to the pressing mechanical part through the plastic cantilever to combine terminals on the PCB with each other to realize electrical communication.

For the arrangement of the magnetic poles of the magnets which are combined in a three-dimensional mode, the fixing effect can be achieved only by ensuring the mutual attraction of the south poles and the north poles of the magnetic poles. For example, in the case of the tapered combination shown in fig. 12, the magnetic poles are designed to ensure that the polarities are compatible and that the magnetic poles do not repel each other. Fig. 13 is a diagram showing the mutual arrangement of 6 magnets, and the broken lines in the diagram indicate the mutual attraction and connection of the magnets of the illumination unit. The design of the graph can be arbitrary, but the relative polarity is critical.

According to the configurable flat lighting device 20 of the present invention, the configurable flat lighting device 20 is provided with a unique identification feature, and the configurable flat lighting device is enabled to communicate with the intelligent terminal through the network to control different configurations of light emitted by a plurality of interconnected flat lighting devices. For example, if a plurality of lighting units are combined and mounted on a wall, ceiling or other planar structure, the structure should be suitable for screen layout, such as a touch screen of a mobile phone or a laptop computer or a screen of a desktop computer, to achieve convenient control of a plurality of lighting fixtures, resulting in different and varied lighting settings. The basis of all algorithms here is that each configurable flat lighting device 20 is provided with a globally unique identification feature, which may be factory set. The unique assignments may also be made locally using computer software. The identification features may be strings of characters in any combination, or other similar indicia.

Further, the different configurations of the light include: a color configuration, a brightness configuration, a light up and down and left and right translation configuration, a light rotation configuration, and a light mirror configuration. That is, by installing different LED lighting packages, such as LED packages of different colors, different brightness or different numbers, in each different lighting unit through a smart phone or a computer, the lighting condition of each lighting unit can be artificially controlled to obtain the overall lighting effect under the combined multiple lighting units.

The above examples merely represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications, such as combinations of different features in various embodiments, may be made without departing from the spirit of the invention, and these are within the scope of the invention.

Claims

1. A configurable flat lighting device, said device comprising:

a frame having a flat shape composed of a plurality of sides;

a connecting assembly disposed on an edge of said frame, configured such that a plurality of said configurable flat lighting devices are grouped together and in electrical communication with each other; the connecting assembly comprises a magnetic locking mechanism arranged at the joint area of two adjacent edges of the frame so as to connect and electrically communicate a plurality of flat lighting devices; the light guide part comprises a light guide area, and light extraction points uniformly arranged on the light guide area are arranged on the light guide area.

2. The configurable flat lighting device according to claim 1, wherein a plurality of said flat lighting devices are capable of being flat-connected together.

3. The configurable flat lighting device according to claim 1 wherein said light guide has a thickness 2mm to 10mm greater than the smallest dimension of said light emitting surface.

4. The configurable flat lighting device according to claim 1, wherein said light guide is surrounded by light reflectors to reflect light emitted from said LED package to said end of said light guide that is not extracted by said light guide back into said light guide and extracted.

5. The configurable flat lighting device according to claim 4, wherein said light reflecting member is an adhesive tape.

6. The configurable flat lighting device according to claim 1 wherein a plurality of said flat lighting devices are combined to form a three-dimensional shaped assembly.

7. The configurable flat lighting device according to claim 1 wherein said frame comprises an equilateral triangle, square, pentagon or equilateral hexagon.

8. The configurable flat lighting device according to claim 1 wherein said magnetic latching mechanism comprises a male connector and a female connector, wherein said male connector comprises:

a fixing block fixed to one side of the frame by an elastic member and a protrusion;

the electric connecting piece is arranged on the fixed block;

the female joint includes:

an electrical connector disposed within the interface;

9. The configurable flat lighting device as claimed in claim 8, wherein said mounting block is made of plastic, non-magnetic material or wood; the elastic piece is a spring.

10. The configurable flat lighting device according to claim 8, wherein said electrical connectors are disposed at both ends of said mounting block and said magnetic element is disposed between said electrical connectors of said mounting block.

11. The configurable flat lighting device as claimed in claim 8, wherein said retention block in said male connector comprises a rod member telescopically received in a frame in a retracted position by a spring, and said female connector comprises a retention block aligned with and engaged with said retention block in said male connector.

12. The configurable flat lighting device according to claim 8 wherein said electrical connection is a single pin spring connector or a compression connector or a two piece connector.

13. The configurable flat lighting device as claimed in claim 1, wherein said frame comprises:

the electric connecting piece is arranged on the magnetic piece;

14. The configurable flat lighting device according to claim 13, wherein said electrical connection means comprises a plurality of metal terminals disposed inside and outside of said magnetic member, wherein said metal terminals inside are connected to electronic components inside said configurable flat lighting device and said metal terminals outside are wound around said magnetic member.

15. The configurable flat lighting device according to claim 14, wherein said metal connection terminals comprise a bent metal strip and metal pads disposed on a PCB, wherein metal pads are disposed on said metal strip.

16. The configurable flat lighting device according to claim 15, wherein said PCB is provided with ridges to limit movement of said PCB as a connecting bridge.

17. The configurable flat lighting device according to claim 15, wherein plastic suspension arms and a stitching mechanism are provided on said PCB, and an external force is applied to said stitching mechanism through said plastic suspension arms to couple terminals on the PCB to each other for electrical communication.

18. The configurable flat lighting device according to claim 1, wherein said configurable flat lighting device is provided with a unique identification feature and is adapted to communicate with a smart terminal via a network to control different configurations of light emitted from a plurality of interconnected flat lighting devices.

19. The configurable flat lighting device according to claim 18 wherein said different configurations of lights comprise: a color configuration, a brightness configuration, a light up and down and left and right translation configuration, a light rotation configuration, and a light mirror configuration.