WO2023006976A1

WO2023006976A1 - Luminous element

Info

Publication number: WO2023006976A1
Application number: PCT/EP2022/071410
Authority: WO
Inventors: Paul Heinrich Neuhorst; Peter Neuhorst
Original assignee: P. H. Wert-Design E.K.
Priority date: 2021-07-30
Filing date: 2022-07-29
Publication date: 2023-02-02
Also published as: EP4377607A1; DE102021119902A1

Abstract

The invention relates to a luminous element (1) having light-emitting diodes (LED) (3, 4) that can be controlled by means of a circuit including a network module. The luminous element (1) according to the invention is characterized in that at least two LEDs (3, 4) or at least two groups of LEDs (3, 4) emit their light in different directions, and in that these at least two LEDs (3, 4) or at least two groups of LEDs (3, 4) can be controlled and activated separately and independently of each other.

Description

bulbs

The invention relates to a light source with light-emitting diodes (LEDs) that can be controlled by means of a circuit with a network module.

Such lamps are already known in a variety of designs. Lamps of the type mentioned at the outset have already been created, which are equipped with light-emitting diodes, so-called LEDs, inside an enveloping glass bulb connected to a base. In order to have the light emitted by the lamp emitted in one of several colors that are optionally available, the previously known lamps of the type mentioned at the outset also have a circuit integrated into the lamp with a network module for wireless control and activation of the LEDs provided in the lamp on. Such modern smart LED light sources (light bulbs) according to the prior art usually have a base for fastening and power supply, a spherical diffuser designed as a pear-shaped glass bulb to protect the light-emitting diodes (LEDs) and a circuit with a network module, which allows the Bulbs provided to control LEDs via a remote control or an app with the cell phone in order to be able to control the brightness and color of the bulb in this way.

The disadvantage of such previously known solutions is that the light emitted by the illuminant is radiated in a fixed direction. The directional emitting of light of a specific color or intensity in different directions is not related to the illuminant itself controllable; rather, the direction of the light beams can at best be changed or specifically aligned by the lamp itself.

There is therefore a particular task of creating a light source of the type mentioned at the outset that enables the targeted alignment of the emitted light, possibly also in different directions and in particular in the opposite direction, for example downwards and/or upwards, even without a specially designed lamp permitted.

The solution to this problem according to the invention consists in the lighting means of the type mentioned in particular in that at least two LEDs or at least two groups of LEDs emit their light in different directions and that these at least two LEDs or these at least two groups of LEDs can be controlled separately and independently of one another and can be activated.

The illuminant can have a socket for the power supply of the illuminant. The base can also be designed to attach the light source. With this base, the illuminant can be screwed or screwed into the socket of a lamp, for example, which socket establishes the connection to the mains or similar power source.

The base can, for example, have a thread as a fastening means, with which the illuminant can be screwed into a socket of a lamp. Other fastening means, such as pins or fastening pins, can also be arranged on the base of the light source.

In one embodiment of the light source it is provided that the light source, for example at its base, a Has terminal with which the lamp can be connected to a power source. Such an illuminant can be suitable in particular for permanent installation, in which no base with a thread and/or at least with at least one pin or fastening pin has to be provided.

In the lamp according to the invention, light-emitting diodes can be provided, which can be arranged inside a glass and/or plastic _bulb connected to the base, which can optionally also be a two-part or multi-part glass or plastic _bulb as mechanical protection and/or as a diffuser can serve for the light emitted by the illuminant.

In one embodiment of the light source, this is a light source with a base for attachment and power supply and with light-emitting diodes, which are arranged in a glass and/or plastic bulb connected to the base ^, the LEDs being controllable by means of the circuit with the network module.

In one embodiment of the lamp, which is particularly suitable for permanent installation, it can be provided that the lamp has no bulb, in particular no glass and/or plastic bulb, in which the light-emitting diodes are arranged. In this embodiment of the light source, the light-emitting diodes are therefore not housed and arranged within a glass and/or plastic bulb.

The illuminant can have an LED carrier. The at least two ^LEDs or the at least two groups of LEDs can be arranged on the ^LED carrier in such a way that they emit their light in different directions. The LEDs of the light source according to the invention can be controlled wirelessly by means of a circuit with a network module, the circuit and its network module being integrated into the light source according to the invention. The light source according to the invention has at least two LEDs or at least two groups of LEDs, which emit their light in different directions. In this case, these at least two LEDs or these at least two groups of LEDs can be controlled and activated separately and independently of one another, so that the light can be aligned selectively and independently of the lamp used. The light source according to the invention is able to individually control individual LEDs or groups of LEDs within the light source. The light source according to the invention can have at least two LEDs or at least two groups of LEDs, which offer either warm light or cold light and/or as an RGB LED, which offers the three main colors red, green and blue of an additive color system that can be combined in any way, or with any one Combination of these possibilities are designed. Each LED or each group of LEDs emits the light in a different direction. For this purpose, the LEDs do not necessarily have to be oriented in a specific direction—in fact, a lens system and/or at least one reflector can also be used. Together with a remote control or an app that interacts with the light source according to the invention, the user can illuminate the room differently using the individually controllable LEDs or the individually controllable groups of LEDs and thereby determine the lighting intensity and light color of each illuminated section. For example, an LED emitting upwards or a group of LEDs emitting upwards can offer warm light, cold light or an RGB color change, while an LED emitting downwards or a group of LEDs of the illuminant according to the invention emitting warm light or emits cold light. There are no limits to the number of LEDs or groups of LEDs and the number of illuminated sections, but at least two LEDs, two groups of LEDs or two sections optionally illuminated by the illuminant are useful.

An advantageous embodiment according to the invention, which offers the user various options, provides that the circuit has at least three _switching stages or positions and that in a first switching stage or _position one of the LEDs or one group of LEDs in a second switching stage or _position the other of the LEDs or the other group of LEDs, and in a third switching stage or _position at least these two LEDs or at least these two groups of LEDs can be activated. For example, the lighting means according to the invention can also be activated downwards and/or upwards in a first switching stage or _position warm light, in a second switching stage or _position cold light and in a third switching stage or _position activate an RGB color change.

The options available to the user of the light source according to the invention are further increased if the light color and/or the light intensity can be changed individually for at least one of the LEDs or for at least one of the groups of LEDs.

As stated above, the different LEDs or the different groups of LEDs need not be oriented in different directions; Rather, the beam direction of the light emitted by the LEDs or the groups of LEDs can also be determined by reflectors and/or lenses. In such an advantageous embodiment of the light source according to the invention, the emission direction is at least one of the LEDs or at least one of the groups of LEDs by means of at least one reflector and/or by means of at least one lens.

In order to create clearly differentiable sections of the light field illuminated by the illuminant according to the invention, it can be advantageous if the illuminant has at least one reflector and/or at least one lens in order to separate the emission direction of the LEDs or groups of LEDs from one another without overlapping the individual illuminated sections .

In addition or instead, it can also be advantageous if the lighting means has at least one light-shielding element in order to separate the individual illuminated sections from one another.

It is particularly advantageous if the circuit having the network module can be controlled by means of a wireless remote control, in particular by means of a control panel and/or a smartphone app.

A particularly advantageous development according to the invention provides that the light source has at least two groups of LEDs, of which a first group of LEDs emits positive axial light and a second group emits negative axial light. So while one group of LEDs can emit their light beams towards the floor, for example to illuminate a work or table surface below the light source, another, second group of LEDs can emit light in the opposite direction towards the ceiling, in order to create a to create pleasant indirect lighting.

It is also possible that the illuminant has a third group of LEDs, which emits light radially and thus Environment of the lamp and in particular the room is illuminated over a large area.

A further embodiment according to the invention provides that the third, radially light-emitting group of LEDs is subdivided into subsections, which subsections can be controlled and activated separately from one another. In this way, the illuminant can be easily adapted to the sections in the room to be illuminated and the user is offered further options for lighting design.

An advantageous embodiment according to the invention provides that a first group of LEDs radiating upwards is arranged on a ring circuit board. The LEDs, which may be arranged in subsections on the ring circuit board, radiate towards the ceiling.

In such an embodiment, in which the LEDs emitting upwards are arranged on a ring circuit board, it can be advantageous if the ring circuit board surrounds a conical or truncated cone-shaped LED carrier, which has a second LED emitting downwards emitting inside its cone or truncated cone shape or second group of LEDs carries.

In one embodiment of the light source ^, the at least two LEDs or the at least two groups of LEDs are ^arranged on different sides of a common LED carrier and/or on different sides of a common circuit board, in particular a ring circuit board. This enables a particularly compact design of the light source.

Developments according to the invention result from the following description including the claims and the drawing. The invention is described in more detail below with reference to preferred exemplary embodiments.

It shows:

1 shows an illuminant with a base for attachment and power supply and with light-emitting diodes, which are arranged in a glass bulb connected to the base, the LEDs of the illuminant being wirelessly controllable by means of a circuit with a network module, and with at least two LEDs or at least two groups LEDs emit their light in different directions, whereby these at least two LEDs or these at least two groups of LEDs can be controlled and activated separately or independently of one another,

2 shows the internal structure of the light source shown in FIG. 1 in a circuit diagram,

3 shows a smartphone assigned to the light source according to FIGS. 1 and 2, on which smartphone the light source can be wirelessly remote-controlled via an app,

4 shows the functional sequence when controlling the lighting means shown in FIGS. 1 and 2 in a schematic representation,

Fig. 5 a side view of a light source with light-emitting diodes that are arranged on an LED carrier, the LEDs of the light source being wirelessly controllable by means of a circuit with a network module, with at least two LEDs or at least two groups of LEDs emitting their light in emit in different directions, wherein these at least two LEDs or these at least two groups of LEDs can be controlled and activated separately or independently of one another, and wherein this illuminant does not have a bulb in which the light-emitting diodes are arranged, and

Fig. 6 shows a further side view of a further embodiment of a lamp with light-emitting diodes which are arranged on an LED carrier, the LEDs of the lamp being able to be controlled wirelessly by means of a circuit with a network module, with at least two LEDs or at least two groups of LEDs emitting their light emit in different directions, wherein these at least two LEDs or these at least two groups of LEDs can be controlled and activated separately or independently of one another, and this illuminant also has no bulb in which the light-emitting diodes are arranged.

In the following description of various embodiments of the invention, elements that have the same function are given the same reference numbers, even if the design or shape differs.

FIG. 1 shows a schematic side view of a light source 1 designed as an incandescent lamp. The lamp 1 has a base 2, which is used for attachment and for supplying electrical energy. The illuminant 1 can be screwed into the socket of a lamp not shown here using the base 2 . In this case, the illuminant 1 is connected to the mains or the like Power source connected version supplied with electrical energy. The electrical energy supplied is converted from alternating current to direct current with a lower voltage level within the lamp 1 (AC-DC power pack in the lamp 1). The converted electrical energy is used to supply the LED driver and to supply a circuit which is integrated into the illuminant 1 and is designed as a microcontroller.

The illuminant 1 has light-emitting diodes 3, 4, which are arranged in a protected manner in a bulb 5 connected to the base 2. The bulb 5 can be designed as a glass and/or plastic bulb and, if necessary, can also be made in two or more parts in order to facilitate the installation of the components of the illuminant 1 in the bulb. The illuminant 1 from FIG. 1 thus has the form of a conventional incandescent lamp, but uses light-emitting diodes 3, 4 as light sources.

The provided in the bulb 1 LEDs 3, 4 are using the

Circuit can be controlled wirelessly. The circuit designed here as a microcontroller also has a network module via which the circuit receives the information on the desired state of the light source and accordingly controls the LED drivers with the assigned different LEDs or groups of LEDs for the corresponding sections to be illuminated. In conjunction with its network module, the switching circuit takes care of setting up and maintaining the network connection of the lamp to the control unit located outside of the lamp 1 . The control panel can also be referred to as a remote control.

Instead of the LED driver or LED group structure described here, addressable LEDs can also be used as an alternative be accessed. Each LED 3, 4 has an individual driver and can therefore be controlled individually.

In the schematic representation of the internal structure of the illuminant 1 according to FIG. 2, it can be seen that the addressable LEDs of each group of LEDs are connected in series with the data line. Each group of LEDs 3, 4 is thus individually connected to the circuit designed as a microcontroller, as a result of which different types of addressable LEDs can be used for each group.

Alternatively, there can also be only one connection of the addressable LEDs to the circuit and the data line of the LEDs is also connected to one another in series from group to group of LEDs 3, 4. The advantage of this design is that the definition of a group of LEDs 3, 4 can be defined in the circuit and is therefore independent of the hardware used.

The lighting means 1 is controlled by a man-machine interface. Depending on the design, the interface is connected via a cable and preferably wirelessly via the network module provided in the circuit.

A smartphone, tablet or computer with the appropriate application (app) can serve as the human-machine interface.

A special remote control or a special control panel, as is used in SMART Home applications, are also conceivable for controlling the light source 1 .

The user can set the desired state of the LEDs provided in the light source 1 via the appropriate interface. The preferably designed as a microcontroller Circuit processes the information and sends it by means of the integrated network module to the light source 1, which adjusts the color and brightness of the individual groups of LEDs 3, 4 according to the user's instructions.

FIG. 3 indicates how the illuminant 1 and the LEDs or groups of LEDs 3, 4 provided therein can be selectively controlled and activated using a conventional smartphone and the application stored on this smartphone. FIG. 4 shows the simplified logical sequence of the control program when using the light source 1:

1. When switching on the light, which is designed with the light source 1, the last set state of the light source 1 is loaded and set accordingly by the microcontroller serving as a circuit.

2. The network module provided in the circuit of the lamp 1 establishes the connection to the control panel 9, which is used to control the lamp. This operating part can be, for example, the smartphone shown in FIG. 3 with a corresponding application 10 and/or act as a remote control.

3.Then it waits for new commands.

4.When a new command is received, the im

Lamp 1 provided circuit according to the command the state of the lamp and the LED's provided in it or groups of LED's 3, 4. After

Completion of the command is then again waited for a new command from the user.

5.When the lamp is switched off, the state of the lamp 1 that was last set is saved so that it can be loaded again when it is switched on again later. In addition to the procedure described in simplified form, the control program also stores and manages the network address, the name and other relevant data. A reset function should also be integrated.

In order to emit the light from the LEDs located in the light source 1 in different directions in space, different solutions are conceivable. In this way, different beam directions can be realized through the different orientations of the LEDs used. With such a simple design, the use of optical elements, such as light guides, lenses or reflectors, can be dispensed with.

However, it is also possible to define the beam direction of the LEDs by optical elements, such as light guides, lenses or reflectors. A disadvantage here, however, is the rather complex installation of the individual LEDs.

In addition or instead, the LEDs can also be soldered flat on a circuit board, for example a circuit board. The light is then directed into the appropriate section of the room by optical elements. An embodiment in which the light is oriented by using optical elements is preferred. A combination of LEDs and groups of LEDs is also possible, in which individual LEDs or at least one group of LEDs emit in one beam direction, while the beam direction of at least one other LED or at least one other group of LEDs is controlled by using the optical ones described above elements is determined.

Depending on the version, the individual illuminated sections cannot overlap or merge be prevented completely. In order to enable a clearer delimitation of the individual sections that can be illuminated by the lighting means 1, shielding elements can be used which are opaque and which allow a clear delimitation of the illuminated sections in space.

The illuminant 1, which can emit light in different directions with different colors and brightnesses, can be used, inter alia, in various lamps, such as wall lamps, floor lamps, table lamps, ceiling lamps or hanging lamps. As shown by way of example in the embodiment of the lighting means 1 according to the invention shown in FIG. The annular circuit board arranged on the inner end face of the glass bulb 5 facing away from the base 2 surrounds an LED carrier 7 which is in the shape of a truncated cone here and which is held immovably inside the glass bulb 5 . Inside its truncated cone shape, which also serves to reduce glare, this LED carrier 7 has a second LED 4 or a second group of LEDs 4 that radiates downwards. The LED carrier 7 can be vapour-coated with a reflective surface layer on the outside and/or inside circumference, or it can be designed as a reflector. While this second LED 4 or this second group of LEDs 4 radiates downwards and can be used to illuminate a table or work surface, atmospheric indirect lighting in the room can be generated with the aid of the group of LEDs 3 radiating upwards. The embodiment of the light source 1 shown here as an example therefore offers the user various options for emitting the light in different sections of the room, regardless of the lamp used, and for generating different light _situations depending on requirements. The carrier 7 , which is in the form of a truncated cone here, is designed to be open on its end face facing away from the base 2 . In contrast, the at least one LED 4 is arranged on the inside on the end face of the carrier 7 which faces the base 2 and is equipped with the smaller cross-sectional area. In order to radiate the light emitted by the LED 4 or the group of LEDs 4 in a concentrated manner downwards and to use it specifically for illuminating a work surface or table surface, it is expedient if the LED carrier 7 has a reflective inside on the circumference of its cone or truncated cone shape and surface serving as a reflector.

In the exemplary embodiments of the illuminant 1 shown, the LED carrier 7 is fastened to a holder 8 and connected to the base 2 via the holder 8 .

The illuminant 1 from FIG. 1 has a base 2 which is provided with a thread 11 . With its thread 11, the base 2 can be screwed into a socket (not shown) of a lamp for fastening the illuminant 1. Power can then also be supplied to the illuminant 1 via the base 2 .

While the illuminant 1 shown in FIG. 1 has a glass and/or plastic bulb 5 which is connected to the base 2 and in which the light-emitting diodes 3,4 are arranged, the illuminants 1 shown in FIGS. 5 and 6 do not have such Piston 5 up. The lighting means 1 shown in FIGS. 5 and 6 are therefore particularly suitable for permanent installation. In comparison to the illuminant 1 shown in FIG. 6, the illuminant 1 shown in FIG. 5 also does not require a base 2 with a thread 11. Rather, it is possible to connect the illuminant 1 shown in FIG. 5 to a power source, for example by means of a connection terminal. Also in the light source 1 shown in Figure 5 and Figure 6, an LED carrier 7 is provided on which the at least two LEDs ^3.4 or at least two groups of LEDs ^3.4 are arranged in such a way that they Emit light in different directions. The same also applies to the exemplary embodiment of the lighting means 1 shown in FIG.

Particularly in the case of the illuminant 1 shown in FIG. 5, the holder 8 can also serve as a heat sink, via which heat can be dissipated from the LEDs 3,4.

In addition, the holders 8 can also contain the circuit 12 with the network module, which has already been mentioned above and is designed as a microcontroller.

The light source 1 shown in FIG. 5 has on its LED carrier 7 two annular circuit boards 6 with LEDs 3 which are ^axially spaced apart from one another with respect to a longitudinal central axis of the light source 1 and are aligned upwards. An LED 4 is arranged within the LED carrier 7 and is oriented in the opposite direction and thus downwards.

In the light source 1 shown in FIG. 6 ^, each of the LEDs 4 is equipped with a respective reflector 13 .

/ List of References Reference List

1 bulb

2 sockets 3 (upwards radiating) LED or LED's

4 (below radiating) LED or LED's

5 flasks

6 ring circuit board

7 LED carriers 8 holders

9 Control panel/remote control

10 application

11 threads on 2

12 Circuit 13 Reflector

/ Expectations

Claims

Expectations

1. Lamp (1) with light-emitting diodes (LED), the LEDs (3, 4) of the lamp (1) by means of a

Circuit (12) can be controlled with a network module, characterized in that at least two LEDs (3, 4) or at least two groups of LEDs (3, 4) emit their light in different directions, and that these at least two LEDs (3, 4) or at least these two

Groups of LEDs (3, 4) can be controlled and activated separately and independently of one another.

2. Lamp (1) according to claim 1 with a base (2) for power supply and in particular for attachment, in particular wherein the base (2) has a thread (11) with which the lamp (1) can be screwed into a socket of a lamp .

3. Light source (1) according to claim 1 or 2, wherein the light-emitting diodes (LED) (3,4) are arranged in a glass and/or plastic bulb (5) connected in particular to the base (2), or wherein the illuminant (1) has no bulb (5), in particular no glass and/or plastic bulb (5), in which the light-emitting diodes (LED) are arranged.

4. Light source (1) according to one of the preceding claims, wherein the light source (1) has an LED carrier (7) on which the at least two LEDs ( ^3,4 ) or the at least two groups of ^LEDs ( 3.4) are arranged in such a way that they emit their light in different directions.

5. Lamp according to one of the preceding claims, characterized in that the switching circuit (12) has at least three _switching stages or positions, and that in a first switching stage or _position one of the LEDs (3; 4) or one group of LEDs (3; 4), in a second _switching stage or position the other of the LEDs (4; 3) or the other group of LEDs (4; 3), and in a third switching stage or _position at least these two LEDs (3, 4) or at least these two groups of LEDs (3, 4) can be activated.

6. Lighting means according to one of the preceding claims, characterized in that the light color and/or the light intensity can be changed individually for one of the LEDs or for at least one of the groups of LEDs.

7. Illuminant according to one of the preceding claims, characterized in that the emission direction of at least one of the LEDs or at least one of the groups of LEDs is fixed by means of reflectors and/or lenses.

8. Lamp according to one of the preceding claims, characterized in that the lamp (1) has at least one reflector and/or at least one lens in order to separate the emission direction of the LEDs or the groups of LEDs from one another without overlapping the individual illuminated sections.

9. Lamp according to one of the preceding claims, characterized in that the lamp (1) has at least one light-shielding element in order to separate the individual illuminated sections from one another.

10. Illuminant according to one of the preceding claims, characterized in that the circuit (12) having the network module can be controlled by means of a wireless remote control (9) and in particular by means of a control panel and/or a smartphone app (9).

11. Lamp according to one of the preceding claims, characterized in that the lamp (1) has at least two groups of LEDs (3, 4), of which a first

group of LEDs (3; 4) emits positive on-axis light and a second group of LEDs (4; 3) emits negative on-axis light.

12. Light source according to claim 11, characterized in that the light source has a third group of LEDs which emits light radially.

13. Illuminant according to one of the preceding claims, characterized in that the third group of LEDs emitting radial light is divided into sub-sections which can be controlled and activated separately from one another.

14. Light source according to one of the preceding claims, characterized in that a first group of LEDs (3) radiating upwards are arranged on a ring circuit board (6).

15. Illuminant according to claim 14, characterized in that the ring plate (6) surrounds one or the LED carrier (7), in particular conical or truncated cone-shaped, which, preferably inside its cone or truncated cone shape, has a downwardly radiating second LED or second group of LEDs (4) carries.

16. Light source according to one of the preceding claims, characterized in that the control of the LEDs (3, 4) of the

Lamp (1) via the circuit with network module is wireless.

17. Lamp according to one of the preceding claims, characterized in that for one of the LEDs or for at least one of the groups of LEDs, the light colour, the colored light and/or the light intensity can be changed individually.

Lighting means according to one of the preceding claims, characterized in that warm light or cold light or an RGB color change can be activated individually for one of the LEDs or for at least one of the groups of LEDs.

19. Light source according to one of the preceding claims, ^wherein two LEDs (3.4) or the at least two groups of LEDs ( ^3.4 ) on different sides of a common LED carrier (7) and / or on different sides a common circuit board (6), in particular a ring circuit board are arranged.