Height-adjustable light emitting device

Abstract

The utility model relates to a height-adjustable lighting device, comprising the following:-at least one lamp head (10),-at least one ceiling housing (20),-at least one height-adjusting unit (30) having at least one cable (32), and-at least one control unit (40). The control unit (40) is designed to actuate the height adjustment unit (30) in such a way that the lamp holder (10) can be set into a first use state in which the lamp holder (10) is suspended by means of the at least one cable (32) and forms a ceiling lamp (80), and into a second use state in which the lamp holder (10) is sunk into the ceiling housing (20) and forms a sunk ceiling lamp (90).

Description

Technical Field

[0001] The invention relates to a height-adjustable lighting device, which comprises at least one lamp head, at least one ceiling housing, at least one height adjustment unit with at least one cable and at least one control unit. Background Art

[0002] From the prior art, height-adjustable ceiling lamps with a lamp head suspended from a ceiling fixing unit by means of a cable are known. For example, DE 20 2007 017 625 U1 describes a height-adjustable ceiling lamp in which the cable for suspending the lamp head is wound onto a mechanically prestressed winding drum, which is fixed to the room ceiling. In order to keep the suspended lamp head in its current vertical position, the winding drum has a winding brake, which prevents the cable wound on the winding drum from unintentionally unwinding.

[0003] In known height-adjustable ceiling lamps, it is disadvantageous that adjustment of the vertical position or height of the lamp head requires manual movement of the lamp head.

[0004] Furthermore, height-adjustable pendant lamps, such as those shown in DE 20 2007 017 625 U1, are subject to a corresponding risk of contamination. In addition, the lighting arrangements that can be realized with the aid of height-adjustable pendant lamps are not suitable for all purposes of use and lighting situations. Utility Model Content

[0005] In view of this, the object of the present invention is to provide a height-adjustable lighting device which can be used in variable environments and can be used to produce various lighting arrangements and scenes. The height-adjustable lighting device should also be adjusted as comfortably as possible and in a safe manner.

[0006] The object of the present invention is achieved in particular by a height-adjustable lighting device, the height-adjustable lighting device having:

[0007] - at least one lamp head,

[0008] - at least one roof shell,

[0009] - at least one height adjustment unit having at least one cable, and

[0010] - At least one control unit.

[0011] The control unit is configured to control the height adjustment unit so that the lamp head can be set to a first usage state and a second usage state, wherein in the first usage state the lamp head is suspended by means of at least one cable and forms a ceiling lamp, and in the second usage state the lamp head is sunk into a ceiling shell and forms a sunken ceiling lamp.

[0012] A key point of the invention is that the height-adjustable light-emitting device is designed so that it can be used not only as a suspended chandelier, but also as a sunken ceiling lamp. This makes it possible to create completely different lighting situations with a single light-emitting device. In a first state of use, a relatively localized illumination of a room area in the environment of a suspended lamp head can be achieved with the light-emitting device, while in a second state of use, illumination of a larger room area can be achieved. In addition, a configuration of the light-emitting device is created with the second state of use, in which the light-emitting device forms a ceiling lamp by being sunk into a ceiling housing, which configuration differs essentially from the first state of use, in which the light-emitting device is designed as a chandelier. The light-emitting device according to the invention thus combines two completely different lighting concepts in a single device.

[0013] The first state of use relates to the basic configuration of the height-adjustable lighting device as a pendant lamp. The actual vertical extension of the pendant lamp can be designed to be variable. Therefore, there can be a variety of underutilized states with respect to the first state of use.

[0014] The height adjustment unit is preferably configured to change the position of the lamp head in the vertical direction according to a control command received from the control unit. This relates on the one hand to a switch from a first use state to a second use state or vice versa, and also to a variable configuration of the first use state by means of adjusting the height or vertical position of the suspended lamp head. The different adjustable vertical positions of the lamp head can be regarded as underutilized states of the more general first use state, in which the light emitting device is configured as a hanging lamp.

[0015] With the height-adjustable lighting device according to the invention, a solution is provided which involves producing at least two different use states, which are used to produce different lighting arrangements.

[0016] In the context of the present invention, the vertical direction refers to a direction (substantially) in the direction in which gravity acts.

[0017] A sunken ceiling lamp is particularly understood to be a non-suspended ceiling lamp. Thus, in the second usage state of the lamp head, only the lamp head of the light source is visible. No components of the height adjustment unit are directed outwards and / or are not visible outwards.

[0018] In particular, in the second usage state of the lamp cap, only the downwardly directed or extended visible surface of the lamp cap is visible. This includes in particular the luminous surface of the lamp cap.

[0019] The second use state of the lamp head is preferably understood as a completely sunken configuration of such a ceiling lamp. The ceiling lamp preferably does not extend into the room. In other words, the ceiling lamp does not protrude beyond the room ceiling in the room.

[0020] The height adjustment unit is used to adjust the height of the lamp head. This is advantageously achieved in the following manner: the height adjustment unit can change the length of at least one cable between the ceiling housing and the lamp head.

[0021] In one exemplary embodiment, the height adjustment unit has a drum for at least one cable, in particular for each cable provided for the suspension lamp head, onto which drum a portion of the cable is wound.

[0022] For height adjustment, at least one cable drum is coupled to a drive which, upon receiving a control command, rotates the drum in order to roll up or unroll the cable. Thus, the length of the cable section between the ceiling housing and the lamp head can be changed. The height adjustment unit must be designed such that the vertical position of the lamp head can be changed depending on the control command received.

[0023] The cable for suspending the lamp head from the ceiling housing is preferably designed as an electrical cable, which can also be used to supply power to the light-emitting device in the lamp head. In addition, the cable can be provided for communication, in particular for transmitting sensor data and / or control commands. Alternatively, the cable can be designed as a rope, for example a metal rope, and the power supply of the lamp head can be carried out via a separate line.

[0024] The ceiling shell is preferably arranged or can be arranged in a way that it is sunken into the room ceiling, wherein the ceiling shell has at least one baffle surface that is arranged or can be arranged in alignment with the room ceiling. In particular, the room ceiling located in a building or a room that is to be equipped with the height-adjustable lighting device according to the invention can be referred to as the room ceiling. Preferably, a recess is introduced into the room ceiling for this purpose. In addition, a suspended room ceiling can be constructed, in which a recess can be formed for accommodating the ceiling shell.

[0025] In particular, the at least one baffle surface is designed such that in the use state of the luminous device as a ceiling lamp (second use state), the at least one baffle surface is designed to be aligned with the room ceiling and to be aligned with the luminous surface of the lamp base.

[0026] The roof housing preferably has at least one baffle surface. The roof housing is therefore designed to be not completely open. Preferably, the baffle surface is designed so that any components formed in the roof housing are partially, preferably almost completely, not visible. A component located in the roof housing or a unit located in the roof housing in this way can be, for example, at least a part of a height adjustment unit or a control unit or a communication interface.

[0027] By forming the baffle surface on the roof shell, the components in the roof shell are effectively protected from dirt.

[0028] The cover surface of the ceiling housing also contributes to the fact that the height-adjustable luminous device is perceived as an integral unit in the second usage state and the lamp head almost disappears in the ceiling.

[0029] Furthermore, a plurality of baffle surfaces can be formed or the baffle surface can be formed from a plurality of segments which are preferably spaced apart from one another. This makes it possible for the baffle surface to be individually adapted to the respective shape of the lamp base.

[0030] Preferably, in the second usage state, the lamp cap is arranged in the ceiling housing in such a way that a gap is formed between the outer circumference of the lamp cap and the baffle surface. In other words, the lamp cap is preferably formed (slightly) spaced apart from at least one baffle surface. This preferably involves a gap formed between the outer circumference of the lamp cap and the baffle surface.

[0031] In addition, the lamp cap can be shaped so that the lamp cap has an outer circumference and an inner circumference. In this case, in the second use state, the lamp cap is arranged in the ceiling shell so that a gap is formed between the outer circumference of the lamp cap and the baffle and between the inner circumference of the lamp cap and the baffle surface.

[0032] An opening can be formed in the baffle surface, wherein the opening cross section is formed corresponding to the bottom surface of the lamp base. For example, if the lamp base has a rectangular shape, the opening in the baffle surface is also formed in a rectangular shape. In this case, the opening cross section is formed to be larger than the cross section of the bottom surface of the lamp base. This makes it possible for the lamp base to be arranged in a manner that is sunken in the ceiling housing.

[0033] The base of the lamp base is preferably formed essentially by the shape of the luminous area of ​​the lamp base.

[0034] For example, if the lamp cap has an annular bottom surface, the opening in the baffle surface can also have an annular opening cross section. In this case, the baffle surface is composed of at least two sections, namely an inner section and an outer section. In this case, the inner section and the outer section form an annular opening cross section.

[0035] The opening of the baffle surface can be designed as an opening of a box, into which the lamp head can be sunk, wherein preferably no other components of the lighting device are formed in the box. Preferably, only at least one lead-through channel is formed for at least one cable. With the aid of such a lead-through channel, the cable can be guided outward from the ceiling housing, wherein at the same time the components of the lighting device located in the ceiling housing are reliably protected from dust and other contamination.

[0036] Preferably, the lamp head has at least one light-emitting device, which is communicatively connected to the control unit and is designed to change its brightness in accordance with commands received from the control unit.

[0037] By means of such an embodiment of the light-emitting means arrangement with the possibility of varying its brightness, it is achieved that the lighting devices which are already variably used can be varied more efficiently with regard to the lighting situation to be achieved.

[0038] It is possible that the lamp head has at least two light-emitting means arrangements, wherein a first light-emitting means arrangement is formed on the bottom side of the lamp head and at least a second light-emitting means arrangement is formed on the top side of the lamp head, wherein the at least two light-emitting means arrangements are preferably activated and / or their brightness is adjusted depending on the current usage state.

[0039] For example, it is possible that in the second usage state only the first light-emitting device arrangement is activated, so that the lighting device acts as a ceiling light.

[0040] Furthermore, it is possible that in the second usage state only the second light-emitting device is activated, so that due to the preferably formed gap between the lamp head and the cover surface an indirect lighting is produced.

[0041] For example, in a first usage state, both light-emitting means arrangements can be activated, which results in the maximum possible illumination of the chandelier.

[0042] Preferably, at least the first lighting device is activated in the first state of use. As already described, both light-emitting means arrangements can also be activated.

[0043] In the second usage state, the first light-emitting device arrangement or the second light-emitting device arrangement is preferably activated.

[0044] The brightness of each light-emitting device can be adjusted relative to the respectively set height of the chandelier, especially in the first use state. For example, the brightness can decrease as the height of the chandelier increases.

[0045] Preferably, a substantially closed housing section is formed in the roof housing, in which a part of the height adjustment unit and the control unit are arranged.

[0046] A substantially closed housing section is to be understood in particular as a housing section which has only an opening for forming a lead-through channel. The at least one lead-through channel is used to lead at least one cable out of the height adjustment unit.

[0047] By means of such a closed housing section, components located in the roof housing (eg, height adjustment unit and control unit) can be effectively protected from dust and other dirt.

[0048] In one possible embodiment of the invention, the ceiling housing can also include a cover side in addition to the side walls. The cover side is opposite any baffle surface. This allows all sides of the ceiling housing to be designed to be essentially closed. In this embodiment of the ceiling housing, the height-adjustable lighting device according to the invention is particularly easy to transport. As a result, the components located in the ceiling housing are particularly well protected during transportation or during delivery.

[0049] In another embodiment, the ceiling housing can be closed at the top only in the installed state. In this embodiment, the aforementioned cover side is missing. The cover side is then formed by a section of the room ceiling. This embodiment of the invention allows easy access to the components located in the ceiling housing when disassembling the height-adjustable lighting device. This simplifies any necessary temperature adjustment or the replacement of possibly defective components.

[0050] It is possible that at least one sensor device with at least one sensor is arranged on the lamp head, wherein at least one sensor is configured as a near-field sensor which is designed to detect a user's hand in the vicinity of the sensor in order to detect a gesture as a contactless control command.

[0051] For example, an infrared sensor can be used as a near-field sensor, which detects the infrared radiation emitted when the user's hand intervenes in the detection area. In addition, the sensor device can have a radiation source (for example, an infrared light source) and a corresponding at least one sensor, which detects the radiation emitted by the radiation source and reflected by objects in the detection area. Likewise, any sensor type can be used as a near-field sensor, which reacts to the approach contactlessly, that is, without direct contact. Possible embodiments of near-field sensors include inductive or capacitive proximity sensors, light barriers or ultrasonic proximity switches that emit ultrasonic signals and react to the reflection of the ultrasonic signals at objects in the sensor environment.

[0052] It is essential that the sensor device has at least one sensor which allows contactless operation or triggering of the corresponding sensor in order to detect the control command in a contactless manner. The detection area of ​​the near-field sensor is located in the vicinity of the sensor and preferably has a maximum distance of less than 20 cm, more preferably less than 10 cm, from the near-field sensor.

[0053] It is only essential that the near-field sensor has a detection area for objects (in particular the user's hand) which is small enough to prevent accidental triggering of control commands and wide enough to allow control commands to be generated in a contactless manner by means of gestures.

[0054] There is no particular limitation on the gestures that can be used to generate control instructions. Typically, a near-field sensor distinguishes between a state where no object (e.g., a user's hand) is near the sensor and a state where an object (e.g., a user's hand) is near the sensor. For example, a gesture can be characterized based on the duration of time that an object stays near the sensor and detected based on the duration of time. For example, a gesture can be characterized by the maximum duration of time that an object stays within a detection area of ​​a near-field sensor or the minimum duration of time that an object stays within a detection area of ​​a near-field sensor. Similarly, a gesture can be characterized and detected by an object entering and exiting the detection area multiple times, which can be achieved by moving a hand back and forth through the detection area multiple times.

[0055] Furthermore, by virtue of the sensor device having a plurality of near-field sensors spaced apart from one another or sensors having directivity and different orientations, the detection of different gestures can be achieved.

[0056] The first gesture may be characterized by a triggering of the near field sensor for a predetermined minimum duration (e.g., at least one second or half a second). The second gesture may be characterized by a corresponding triggering of a further near field sensor for a predetermined minimum duration. In this case, the sensor device should preferably be adapted to detect at least two different, distinguishable gestures.

[0057] In another embodiment of the present invention, when an object (e.g., a user's hand) is located within a detection area of ​​a sensor associated with the first gesture or the second gesture for longer than a predetermined minimum duration, the first gesture or the second gesture is detected, so that the sensor is triggered for longer than the predetermined minimum duration. Here, the control unit and the height adjustment unit are configured to maintain the movement of the lamp head as long as the hand is located within the detection area of ​​the sensor.

[0058] As soon as the hand leaves the detection area of ​​the sensor, the movement of the lamp head ends. According to this embodiment of the invention, the duration of the vertical movement of the lamp head thus corresponds to the duration of the sensor triggering. Thus, a particularly intuitive method for adjusting the height of the lamp head can be created.

[0059] By means of the embodiment of the sensor device with at least one near-field sensor, an extremely comfortable solution for adjusting the height of the lamp head of a height-adjustable luminaire according to the invention is provided. On the one hand, no contact with the luminaire is required, so that there is no risk of damage or contamination, especially of the lamp head. On the other hand, the gesture-based height adjustment control of the ceiling lamp provides an intuitive, easy-to-understand adjustment option, with which no additional equipment is required for adjusting the height of the lamp head.

[0060] The sensor device can have a plurality of near-field sensors. In this case, different gestures can be detected by triggering different near-field sensors. Likewise, a gesture can be characterized by triggering a plurality of near-field sensors simultaneously. The combination of the evaluation of the triggering duration and the number or identification of triggered near-field sensors also allows different gestures to be detected with the aid of the sensor device. It should be possible to detect at least two different gestures.

[0061] After detecting and recognizing the gesture, the control unit is preferably further configured to generate and send a control instruction corresponding to the recognized gesture to the height adjustment unit. Thus, the control unit can detect a first gesture, which results in the generation and sending of a control instruction, which causes the height adjustment unit to move the lamp head upward in the vertical direction. When a distinguishable second gesture is detected, the control unit generates and sends a control instruction to the height adjustment unit, which results in the lamp head moving downward in the vertical direction. This enables contactless, gesture-based adjustment of the lamp head height.

[0062] The control unit preferably has a computing unit, for example a microcontroller or another processor unit. The control unit is designed to receive and evaluate the signals detected by the sensor device in order to be able to associate the detected signals with different gestures. In particular, the control unit can be configured to detect the duration of the near-field sensor being triggered by an object in the detection area and to characterize different gestures depending on the duration of the sensor signal.

[0063] The communication connection between the control unit and the sensor device and / or the height adjustment unit can be realized in the form of a cable connection, for example, by a corresponding electrical connection. This electrical connection can be formed at least partially or completely by at least one cable between the lamp head and the ceiling housing.

[0064] Furthermore, the communication connection may be realized by means of wireless transmission methods, for example via Bluetooth or a similar interface.

[0065] The height-adjustable lighting device preferably has at least one communication interface for communicating with at least one control unit. The communication interface can be formed as a part of the control unit. In addition, the communication interface can be formed in the ceiling housing.

[0066] A communication connection between the control unit and an external device can be established by means of a communication interface. The external device can be, for example, a mobile phone, a tablet or a controller. The control command can be triggered via such an external device. In this case, gesture-based control can be freely combined with control via an external device, for example by triggering a control command to move the lamp head in a vertical direction by means of an external device and triggering a control command to end the movement by means of gesture control, or vice versa.

[0067] In a preferred embodiment of the present invention, the lamp head has at least one light-emitting device, which is communicatively connected to the control unit and is configured to change its brightness according to a control instruction sent from the control unit. This allows simple adaptation of the brightness of the lighting device.

[0068] The communication connection between the at least two light-emitting means arrangements and the control unit enables a change in the brightness of the light-emitting means arrangements to be controlled by corresponding gestures which are detected by the sensor arrangement and converted by the control unit into corresponding control commands for at least one light-emitting means arrangement.

[0069] At least one of the first light-emitting means arrangement and / or the second light-emitting means arrangement can have, for example, a plurality of light-emitting diodes. For example, the light-emitting diodes are arranged side by side in a row in the base.

[0070] In another preferred embodiment, the control unit can switch between a first mode and a second mode. The first mode is used to change the position of the lamp head in the vertical direction. The second mode is used to change the brightness of the two light-emitting mechanism devices.

[0071] In another preferred embodiment, the control unit is configured to switch from the second mode to the first mode when a third gesture for mode switching is detected at the sensor device. Therefore, the sensor device and / or the control unit are configured to be able to detect the third gesture. The switch from the first mode to the second mode can be triggered by the third gesture detected at the sensor device. This simplifies the operation of the chandelier because the user can control the brightness or height of the chandelier in a targeted manner.

[0072] In another embodiment of the present invention, the control unit is configured to automatically switch from the first mode to the second mode when it is in the first mode for a preset time and no gesture is detected. This further simplifies the operation of the height-adjustable lighting device. By automatically switching to the second mode, it is ensured that users who are not familiar with the operation can initially only change the brightness of the chandelier. The function for adjusting the height of the lamp head is rarely needed in normal use and must first be triggered by a third gesture before the vertical position of the lamp head can be adapted using the first and second gestures. The preset time for the control unit to switch to the second mode can be, for example, 10 seconds or 5 seconds.

[0073] It is also preferred that the control unit is configured to detect the fourth gesture or the fourth and fifth gesture.

[0074] In another preferred embodiment, the sensor device has at least two near-field sensors, wherein the sensor device is configured to detect a first gesture when a user's hand is detected at a first near-field sensor for a preset minimum time, and to detect a second gesture when a user's hand is detected at at least a second near-field sensor for a preset minimum time, and to detect a third gesture for mode switching when a user's hand is detected at both the first near-field sensor and the second near-field sensor for a preset minimum time or shorter than the preset minimum time. The first near-field sensor and the second near-field sensor are preferably positioned at the lamp head so that the corresponding detection areas are spaced apart from each other. With the aid of the described design, particularly simple operation of the lighting device can be achieved.

[0075] Preferably, the control unit is configured to actuate the height adjustment unit such that the lamp head assumes a retracted position in the ceiling housing when it is not in use, in particular when all light-emitting means arrangements are not in use.

[0076] In other words, the control unit is configured to configure the lighting device as a ceiling lamp in the deactivated state and also to configure it as a pendant lamp in the activated state.

[0077] This reduces the risk of possible injuries caused by an unlit chandelier located in the room. Thus, the user will not accidentally bump into the unlit chandelier. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] The invention is described below with respect to further features and advantages which are explained in more detail with reference to the drawings.

[0079] Here it is shown:

[0080] Figure 1 A schematic cross-sectional view showing a light emitting device according to the first embodiment of the present invention in a second use state;

[0081] Figure 2 A schematic cross-sectional view showing a light emitting device according to a first embodiment of the present invention in a first use state;

[0082] Figure 3 A perspective view showing a light emitting device according to the first embodiment of the present invention in a second use state;

[0083] Figure 4 A perspective view showing a light emitting device according to a first embodiment of the present invention in a first use state;

[0084] Figure 5 Another perspective view showing the light emitting device according to the first embodiment of the present invention in the first use state;

[0085] Figure 6A schematic cross-sectional view showing a light emitting device according to a second embodiment of the present invention in a second use state;

[0086] Figure 7 A schematic cross-sectional view showing a light emitting device according to a second embodiment of the present invention in a first use state;

[0087] Figure 8 A perspective view showing a light emitting device according to a second embodiment of the present invention in a second use state;

[0088] Fig. 9 A perspective view showing a light emitting device according to a second embodiment of the present invention in a first use state;

[0089] Fig.10 Another perspective view of a light emitting device according to a second embodiment of the present invention is shown in a first use state. DETAILED DESCRIPTION

[0090] In the following, the same reference numerals are used for identical and identically acting components.

[0091] Figure 1 The light emitting device according to the present invention is shown, and the light emitting device has a ring-shaped lamp base 10. The lamp base 10 is also Figure 3 In the second usage state shown in .

[0092] In addition to the annular lamp head 10, the lighting device also has a ceiling housing 20, three height adjustment units 30 and at least one control unit 40, each of which has a cable 32. The height adjustment unit 30 and the control unit 40 are located in the ceiling housing 20. The ceiling housing 20 is arranged in a manner sunken into the room ceiling 95. The ceiling housing 20 has a baffle surface 22 arranged in alignment with the room ceiling 95. In the present case, the baffle surface 22 consists of an inner section 22a and an outer section 22b.

[0093] It can be seen that the two sections 22a and 22b are arranged in alignment with the room ceiling 95. With the aid of such a ceiling housing 20, the lamp head 10 can form a completely recessed ceiling lamp 90 in the second operating state shown here.

[0094] In the present case, three height adjustment units 30 are formed. Figure 1 and Figure 2 In the sectional view shown, only two height adjustment units 30 can be seen. Figure 4 and Figure 5 It is shown in FIG. 1 that three height adjustment units 30 are formed in the present embodiment. Alternatively, only two height adjustment units may be formed or more than three height adjustment units may be formed.

[0095] A substantially closed housing section 29 is formed in the roof housing 20 , in which a part of the height adjustment unit 30 and a control unit 40 are arranged. This part of the height adjustment unit 30 is in particular a cable drum and a corresponding drive for winding and unwinding the cable 32 .

[0096] Only a small opening is formed in the ceiling housing 20 to form a lead-through channel 23 . The cable 32 can be guided outward from the ceiling housing 20 through the lead-through channel 23 . The lamp base 10 is then fixed to the cable 32 .

[0097] In the present case, the ceiling housing 20 is designed such that it is closed on all sides. In particular, the ceiling housing 20 also has a cover side 41. This allows for particularly simple handling of the lighting device in the unmounted state.

[0098] Alternatively, the ceiling housing may not have a cover side. In this case, the closed housing section 29 is only formed when the luminous device is installed or assembled in the room ceiling 95.

[0099] Apart from Figure 1 In addition to the second use state shown in (the second use state shows the configuration of the light emitting device as a ceiling lamp 90), as Figure 2 The first use state shown in is also possible. The (first) use state shows the configuration of the light emitting device as a hanging lamp 80. In this case, the lamp head 10 is suspended at the cable 32 in the unfolded state, so that the hanging lamp 80 is formed.

[0100] exist Figure 2 It can be seen that an opening 28 is formed in the baffle surface 22. The opening cross section of the opening 28 corresponds to the bottom surface of the lamp base 10. The opening 28 is in turn formed as an opening of the box body 21, wherein no other components of the lighting device are formed in the box body 21 and only the lead-through channel 23 for the cable 32 is formed.

[0101] Thus, when observing the lighting device from below, it is ensured that even in the first operating state, components located in the ceiling housing 20 cannot be directly seen. Furthermore, the components located in the ceiling housing 20 are protected from dirt and undesired influences.

[0102] The lamp head 10 has at least one light-emitting mechanism device. In the current embodiment, two light-emitting mechanism devices are configured at the lamp head 10. The light-emitting mechanism device is communicatively connected to the control unit 40 and is configured to change the brightness according to the control instructions received from the control unit 40. The first light-emitting mechanism device 51 is configured at the lower side 11 of the lamp head. The second light-emitting mechanism device 52 is configured at the upper side 12 of the lamp head. The light-emitting mechanism device is preferably enabled and / or adjusted in brightness according to the current usage state.

[0103] In the first use state, such as the first use state in Figure 2 As shown in the configuration of the lighting device as a chandelier 80 , at least the first (ie downwardly directed) light-emitting device 51 is preferably activated.

[0104] In the second use state (where the light emitting device is configured as a ceiling lamp 90), as Figure 1 As shown in FIG. 1 , the first light emitting device 51 and / or the second light emitting device 52 are enabled. When the second light emitting device 52 is enabled in the second usage state, indirect light is generated. When the first light emitting device 51 is enabled in the second usage state, direct lighting of the ceiling lamp 90 is formed.

[0105] Indirect lighting is provided in Figure 3 Shown in. Figure 3 A second state of use is shown, in which the lamp head 10 is arranged such that a ceiling lamp 90 is formed. The opening 28 (see Figure 2 ) is configured such that the opening cross section corresponds to the bottom surface of the lamp cap 10. A gap 25 is formed between the outer circumferential surface 15 and the baffle surface 22. A corresponding gap 25 is also formed between the inner circumferential surface 14 and the baffle surface 22. Therefore, the light generated by the second light emitting mechanism device 52 can be indirectly radiated downward through the gap 25. Therefore, indirect lighting can be provided.

[0106] exist Figure 3 It can also be seen that the baffle surface 22, which includes the inner section 22a and the outer section 22b, is arranged in alignment with the room ceiling 95. In addition, the baffle surface 22 is arranged in alignment with the luminous surface 55 of the lamp head 10 formed by means of the first light-emitting device 51. Therefore, the lighting device forms a completely sunken ceiling lamp 90 in the second use state.

[0107] The light emitting device in the configuration as a chandelier 80 Figure 4 and Figure 5 The illustrated view shows that both the first light-emitting means 51 and the second light-emitting means 52 are planar and are formed by a plurality of light-emitting diodes which are arranged next to one another in the horizontal extension direction of the upper side 12 and the lower side 11 of the lamp base.

[0108] Preferably, the light emitting device can be dimmed steplessly. The shape of the lamp base 10 is annular, wherein according to the present invention, the shape of the lamp base is not limited to this shape.

[0109] exist Figure 6-10 2 shows a second exemplary embodiment of a lighting device according to the invention, in which the lamp base 10 is designed in the form of a cuboid.

[0110] according to Figure 6-10The light emitting device of the second embodiment shown in the embodiment has substantially the same components. In the embodiment, the lamp head 10 can also be suspended in the first use state and form a chandelier 80 ( Figure 7 In the second use state, the lamp head 10 sinks into the ceiling shell 20 and forms a ceiling lamp 90 ( Figure 6 ). The opening 28 of the baffle surface 22 has an opening cross section corresponding to the bottom surface of the lamp cap 10. Therefore, the opening cross section of the opening 28 is rectangular, so that the cuboid lamp cap 10 can be accommodated in the opening 28. Compared with the bottom surface of the lamp cap 10, the opening 28 has a larger cross section. It is thus achieved that a gap 25 can be formed between the outer circumference 15 of the lamp cap 10 and the baffle surface 22. The light-emitting device according to the second embodiment has two height adjustment units 30. Therefore, two cables 32 are provided, the lamp cap 10 is suspended at the two cables, and the light-emitting device can be set to the first use state or the second use state via the two cables.

[0111] A sensor arrangement having a first sensor 16 and a second sensor 17 is also formed at the lamp head 10. The sensors 16 and 17 are configured as near-field sensors which are designed to detect a user's hand in the vicinity of the sensor to detect a gesture as a contactless control command.

[0112] Furthermore, at least one communication interface 45 is designed for a communicative connection with at least one control unit 40 .

[0113] The cable 32 is used, on the one hand, to fix the lamp head 10 on the ceiling housing 20 , and, on the other hand, to supply power to the lamp head 10 .

[0114] The height adjustment unit 30 is designed to change the length of a section of the cable 32 between the ceiling housing 20 and the lamp head 10 , in order to thereby be able to adjust the height or the vertical position of the lamp head 10 .

[0115] The height adjustment unit 30 can be electrically operated to adjust the height of the lamp head 10. The height adjustment of the lamp head 10 is also performed electrically. The mechanism for this is not subject to any specific restrictions and can be formed, for example, by a motor-driven drum on which the cable 32 is wound or unwound.

[0116] Once an object is located near the sensors 16 and 17, the sensors generate detection signals. When detecting an object near the sensors, the sensors 16 and 17 send detection signals to the control unit 40. Preferably, as long as the object near the sensors is within the corresponding detection areas of the sensors 16 and 17, the detection signals are sent to the control unit 40.

[0117] The control unit 40 receives the detection signals of the sensors 16 and 17, detects the duration of the detection signals and information about which sensor 16, 17 sent the detection signals. Thus, the control unit 40 can distinguish between different gestures that are performed by intervening in the detection areas of the sensors 16 and 17. The control unit 40 detects the duration of the intervention in the detection areas of the respective sensors 16 and 17, and recognizes the movement as a first gesture if the duration of the intervention is, for example, longer than a preset minimum time.

[0118] The second gesture is characterized, for example, by the user moving his hand into the detection range of the second sensor 17. The control unit 40 can therefore detect the duration of the intervention in the detection range of the second sensor 17 and recognize the movement as a second gesture. Depending on the detected gesture, the lamp head can be moved up or down.

[0119] Furthermore, it is possible that, for example, if a third gesture is detected, the control unit 40 can switch between two modes. In the first mode, the detection of a corresponding gesture causes a control command to be sent to the height adjustment unit 30 to move the lamp head 10 upward or downward.

[0120] In the second mode, the detection of a gesture causes a control command to be sent to the light-emitting device arrangement, so that, for example, the brightness of the light-emitting device arrangement can be changed as a function of the detected gesture.

[0121] Preferably, the control unit 40 is configured such that the height adjustment unit 30 is actuated in such a way that the lamp head assumes a sunken position in the ceiling housing 20 when all light-emitting means arrangements are deactivated.

[0122] A communication interface 45, in particular as part of a control unit 40, can be formed in the roof housing 20 for a communication connection with at least one control unit 40. This enables a wireless transmission method, for example via Bluetooth or a similar interface. A communication connection with an external device is achieved. The external device can be, for example, a mobile phone, a tablet or a controller or remote control. In this case, gesture-based control can be freely combined with control via an external device.

[0123] Reference numerals list

[0124] 10 Lamp holder

[0125] 11 Lower side

[0126] 12 upper side

[0127] 14 Inner circumference

[0128] 15 Peripheral

[0129] 16 Sensors

[0130] 17 Sensors

[0131] 20 Roof shell

[0132] 21 Cabinet

[0133] 22 Baffle surface

[0134] 22a Internal segment

[0135] 22b External segment

[0136] 23. Piercing Channel

[0137] 25 Gap

[0138] 28 Opening

[0139] 29 Shell section

[0140] 30 Height adjustment unit

[0141] 32 Cables

[0142] 40 Control Unit

[0143] 41 Ceiling side

[0144] 45 Communication Interface

[0145] 51 first light emitting mechanism device

[0146] 52 second light emitting mechanism device

[0147] 55 Luminous surface

[0148] 80 Chandelier

[0149] 90 Ceiling Light

[0150] Room 95 Ceiling

Claims

1. A height-adjustable light-emitting device, comprising: - at least one lamp cap (10), - at least one roof shell (20), - at least one height adjustment unit (30) having at least one cable (32), - at least one control unit (40), It is characterized in that The control unit (40) is configured to control the height adjustment unit (30) so as to set the lamp head (10) to a first use state and a second use state. The lamp head (10) is suspended by means of the at least one cable (32) in the first use state to form a hanging lamp (80), and The lamp head (10) is sunken into the ceiling shell (20) in the second use state to form a sunken ceiling lamp (90). The lamp head (10) has at least two light-emitting means, wherein the at least two light-emitting means include a first light-emitting means (51) and at least a second light-emitting means (52), wherein the first light-emitting means (51) is formed on the lower side (11) of the lamp head (10), and the second light-emitting means (52) is formed on the upper side (12) of the lamp head (10).

2. The height-adjustable light-emitting device according to claim 1, It is characterized in that The ceiling shell (20) is arranged in a manner sunk into a room ceiling (95) or can be arranged in a manner sunk into a room ceiling (95), wherein the ceiling shell (20) has at least one baffle surface (22) which is arranged in alignment with the room ceiling (95) or can be arranged in alignment with the room ceiling (95).

3. The height-adjustable light emitting device according to claim 2, It is characterized in that In the second usage state, the lamp base (10) is arranged in the ceiling shell (20) such that a gap (25) is formed between the outer circumference (15) of the lamp base (10) and the baffle surface (22).

4. A height-adjustable light emitting device according to claim 2 or 3, It is characterized in that An opening (28) is formed in the baffle surface (22), wherein a cross section of the opening is formed corresponding to a bottom surface of the lamp base (10).

5. The height-adjustable light emitting device according to claim 4, It is characterized in that The opening (28) is designed as an opening of a housing (21) into which the lamp head (10) can be inserted.

6. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that The lamp head (10) has at least one light-emitting device, which is communicatively connected to the control unit (40) and is configured to change the brightness of the at least one light-emitting device according to a control instruction received from the control unit (40).

7. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that The at least two light-emitting means arrangements are activated and / or adjusted in terms of brightness as a function of the current usage state.

8. The height-adjustable light emitting device according to claim 7, It is characterized in that In the first usage state, at least the first light-emitting device (51) is activated.

9. The height-adjustable light emitting device according to claim 7, It is characterized in that In the second usage state, the first light-emitting device (51) or the second light-emitting device (52) is activated.

10. The height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that A closed housing section (29) is formed in the roof housing (20), in which a part of the height adjustment unit (30) and the control unit (40) are arranged.

11. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that At least one sensor device having at least one sensor (16, 17) is arranged at the lamp head (10), wherein the at least one sensor (16, 17) is configured as a near-field sensor, which is configured to detect a user's hand near the sensor (16, 17) to detect a gesture as a contactless control instruction.

12. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that At least one communication interface (45) is used for communicating with the at least one control unit (40).

13. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that The control unit (40) is configured to actuate the height adjustment unit (30) so that the lamp head (10) assumes a sunken position in the ceiling housing (20) when deactivated.

14. The height-adjustable light emitting device according to claim 5, It is characterized in that Only at least one lead-through channel (23) for the at least one cable (32) is formed in the box (21).

15. A height-adjustable lighting device according to any one of claims 1 to 3, It is characterized in that The control unit (40) is configured to actuate the height adjustment unit (30) so that the lamp head (10) assumes a sunken position in the ceiling housing (20) when all light-emitting means are deactivated.

Images