• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an arrangement for general lighting, comprising a first light generating unit (1) for generating a diffused light (L1), and a second light generating unit (2) for generating a, in a radiation direction (R) directed light (L2). In addition, the arrangement has means for influencing the second light-generating unit (2). In this case, these means are designed to influence the second light-generating unit (2) in such a way that the emission direction (R) changes over time. By integrating the two light generating units (1, 2) in an arrangement, the external appearance can be made particularly homogeneous or inconspicuous. The time-dependent change in the direction of radiation (R) makes it possible to change the lighting over time. This makes it possible, for example, that shadows formed by illuminated objects or light directions change over time. For example, in this way the lighting situation can be varied in such a way that a changing position of the sun is modeled.
    公开号:AT15853U1
    申请号:TGM376/2014U
    申请日:2014-10-24
    公开日:2018-07-15
    发明作者:Dipl Ing Hagenbring Melanie；Dipl Ing Beecken Sandra；Lohse Jens；Ing Petschulat Manfred
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    ARRANGEMENT FOR GENERAL ILLUMINATION AND METHOD FOR CONTROLLING
    [0001] The invention relates to an arrangement for general lighting with a first light generating unit for generating a diffuse light and a second light generating unit for generating a directed light. Furthermore, the invention relates to a method for controlling such an arrangement.
    From the prior art it is known to use a large-area luminaire for general lighting of a room, which emits diffuse light. In addition, spotlights can be installed, for example to illuminate objects in a targeted manner. To achieve appropriate lighting, it is therefore necessary to install and adjust several different lights. This can lead to an undesirable appearance of the lighting arrangement, in particular from an architectural point of view. If a change in lighting is desired, the lights must also be manipulated accordingly.
    The invention has for its object to provide an improved arrangement for general lighting. In particular, the arrangement should be advantageous with regard to the external appearance and advantageous with regard to the lighting properties. Furthermore, a method for controlling such an arrangement is to be specified.
    This object is achieved according to the invention with the objects mentioned in the independent claims. Particular embodiments of the invention are specified in the dependent claims.
    According to the invention, an arrangement for general lighting is provided which has a first light generating unit for generating a diffuse light, and a second light generating unit for generating a light directed in an emission direction. In addition, the arrangement has means for influencing the second light generating unit. These means are designed to influence the second light generating unit in such a way that the emission direction changes. This change can preferably take place as a function of time.
    By integrating the two light generating units in one arrangement, the external appearance can be made particularly homogeneous or unobtrusive. In particular, this creates a particularly balanced, calm impression of the room. The time-dependent change in the direction of radiation can also achieve that the lighting changes over time. This can, for example, cause shadows that are formed by illuminated objects or light directions to change over time. For example, the lighting situation can be varied in this way in such a way that a changing position of the sun is simulated.
    Preferably, the first light generating unit has a preferably flat and preferably circular light exit surface, through which the diffuse light is emitted and the second light generating unit has a light emitting area, through which the directed light is emitted; the light emitting area preferably forms a surrounding area of the light exit surface. The impression of a skylight can be created, for example, by a corresponding light exit surface. If the light emission area forms a surrounding area of the light exit surface, the directed light can be emitted particularly suitably from different local areas, so that a changing lighting effect results particularly suitably.
    Preferably, the second light generating unit is designed such that the direction of radiation always encloses an angle with a normal of the light exit surface that is greater than 0 °, preferably greater than 10 °.
    This allows the directed light to be emitted asymmetrically, so to speak.
    / 15
    AT15 853U1 2018-07-15 Austrian Patent Office [0010] If the angle is less than 70 °, preferably less than 60 °, the
    Reduce the risk that a user will be blinded by the directed light.
    [0011] The light-emitting area preferably extends in a ring around the light exit surface; This is advantageous because in this way the directional light can be emitted from clearly different local areas, with a large light exit area as a whole. For this purpose, it is particularly expedient if the light exit surface has a diameter of at least 30 cm, in particular at least 50 cm.
    Preferably, the second light generating unit is designed such that a location area within the light emitting area, from which the directed light leaves the second light generating unit, can be changed over time. As a result, a changing lighting effect can be achieved in a particularly suitable manner.
    Preferably, the second light generating unit has a plurality of illuminants, preferably in the form of LEDs (LED: light-emitting diode), which can be switched on and off one after the other by the means for influencing the second light generating unit. In this way, the location area from which the directional light leaves the light emission area can be changed in a particularly suitable time. The lamps are preferably arranged on a particularly closed line, preferably a circular line, in particular equidistant from one another. This gives the impression that the local area "wanders" over time. In particular, it can be provided that the means can influence the second light generating unit in such a way that the location area moves along the line.
    Preferably, the second light generating unit has an optical element, for example in the form of a reflector, which is preferably arranged in a fixed position relative to the first light generating unit. This allows the arrangement to be designed in a particularly suitable manner in terms of construction.
    Preferably, the first light generating unit and the second light generating unit are arranged in a common housing, wherein the housing is preferably intended to be mounted on a ceiling area. As a result, the arrangement can be easily assembled; in addition, it can be suitably designed with a particularly even appearance.
    According to a further aspect of the invention, a method for controlling an arrangement for general lighting is provided; the arrangement can in particular be an arrangement according to the invention. The method has the following steps: (a) activation of a first light generation unit for generating a diffuse light, (b) activation of a second light generation unit for generating a light directed in an emission direction, and the following further step (c) influencing the second light generation unit such that the direction of radiation changes depending on the time. The time-dependent change in the direction of radiation means that the lighting changes over time. For example, the lighting situation can be varied in this way in such a way that a changing position of the sun is simulated.
    Preferably, the diffuse light is emitted constant in time during step (c). Suitable natural lighting conditions can be emulated in this way.
    Preferably, the second light generating unit is influenced in such a way that the location area from which the directed light leaves the light emission area travels along said closed line, such that the corresponding round trip time is more than one minute and less than twelve hours, preferably more than ten minutes and less than six hours.
    The invention is explained below using an exemplary embodiment and with reference to the drawings. Show it:
    2.15
    AT15 853U1 2018-07-15 Austrian Patent Office [0020] Fig. 1 [0021] Fig. 2 [0022] Fig. 3 [0023] Fig. 4 [0024] Fig. 5 [0025] Fig. 6 [0026] Fig. 7 shows a schematic cross section through an arrangement according to the invention for light emission with a first light generating unit and a second
    Light generating unit, a perspective sketch of the arrangement obliquely from below, a sketch corresponding to FIG. 2, wherein a location area is marked from which the directed light leaves the light-emitting area of the second light generating unit, a cross-sectional sketch of a possible structure of the arrangement, a corresponding sketch, with exemplary light rays being drawn in, a sketch for illustrating a possible lighting effect which can be achieved by the arrangement and a sketch for an application of several arrangements in a room.
    Fig. 1 shows a schematic cross section through an arrangement according to the invention for light emission. The arrangement can be, for example, a ceiling lamp. In the example shown, the arrangement has a housing 6, which is designed to be attached to a ceiling area of a room to be illuminated. In addition to ceiling mounting, a pendulum or installation situation or wall mounting is also possible.
    The arrangement comprises a first light generating unit 1 for generating a diffuse light L1, and a second light generating unit 2 for generating a light L2 directed in a radiation direction R.
    The diffuse light L1 can, for example, be a light with a Lambertian radiation characteristic. For this purpose, the first light generating unit 1 can expediently have a preferably planar light exit surface 3, via which the diffuse light L1 is emitted. In the case of a ceiling lamp, the light exit surface 3 is advantageously oriented horizontally, the diffuse light L1 being emitted downwards. For example, the light exit surface 3 can be circular. The light exit surface 3 is preferably relatively large, for example it can have a diameter of at least 30 cm or at least 50 cm; “Diameter” here generally refers to the maximum extent of the light exit surface 3. In this way, the diffuse light L1 can suitably simulate a natural diffuse light, such as is produced, for example, in a cloudy sky. Such a diffuse light in particular does not produce shadows with clear shadow boundaries.
    The directed light L2 is preferably formed by a light beam or a light cone which extends around the direction of radiation R and has a correspondingly limited opening angle; in particular, the directional light L2 is limited by a smaller solid angle than the diffuse light L1. The directional light L2 is in particular such that it generates clear shadows or shadows with clear shadow boundaries through interaction with objects which it encounters. The second light-generating unit 2 preferably has a light-emitting region 4, via which the directed light L2 is emitted, the light-emitting region preferably forming a surrounding region of the light exit surface 3.
    Furthermore, the arrangement has means for influencing the second light generating unit 2. These means are designed to influence the second light generating unit 2 in such a way that the emission direction R changes as a function of time. In this way it can be achieved that shadows formed by the directed light L2 change over time. This enables a user of the arrangement to create an impression of space or a sense of space that changes over time. Appropriate moving shadows can be used to create lighting effects
    3.15
    AT15 853U1 2018-07-15 Austrian patent office reproduce how they are created by natural sunlight.
    Accordingly, a method for controlling a corresponding arrangement has the following steps: (a) activating the first light generating unit 1 for generating the diffuse light L1, (b) activating the second light generating unit 2 for generating the light directed in the radiation direction R. L2 and (c) influence the second light generating unit 2 in such a way that the emission direction R changes as a function of time.
    In particular, it is provided that both the directional light L2 and the diffuse light L1 are emitted within a period of use of the arrangement; the period of use can be, for example, at least 15 minutes, preferably at least one hour.
    The design can be advantageous such that the direction of radiation R does not jump back and forth over time or the period of use, but that it changes continuously, in particular relatively slowly. For example, the design can be such that an angle Δ which is formed between the radiation direction R (t1) given at a first time t1 and the radiation direction R (t2) given at a later second time t2 is a maximum of 90 ° , if the time period between the first time t1 and the second time t2 is a quarter of an hour or 15 minutes. It can also be provided that the angle Δ is at least 5 °.
    It can also be provided that the directed light L2 is emitted with an intensity that remains at least essentially constant over time. For example, it can be provided that the intensity of the directed light L2 changes by less than 50%, preferably by less than 20%, within 15 minutes or within the period of use.
    The effects described are particularly pronounced when the second light generating unit 2 is designed such that the radiation direction R always includes an angle α which is greater than 0 ° with a normal N of the light exit surface 3 which is directed vertically downwards in the example shown is, preferably greater than 10 °. “Always” is intended to express that the direction of radiation R within a period of time in which it changes due to the influence of the means, or at no time encloses a corresponding other angle with the normal N within the period of use.
    As a result, an asymmetry can be generated for the directed light L2, so to speak. The angle α is preferably less than 70 °, in particular less than 60 °, so that a risk of glare for a user is practically excluded or at least reduced.
    In the example shown, the light-emitting area 4 extends in a ring around the light-emitting surface 3. 2 shows a perspective sketch of the arrangement obliquely from below. One can see the circular light-emitting surface 3 here and the light-emitting area 4, which is correspondingly designed in a ring shape. The light exit surface 3 is thus “central” and has a comparatively large area.
    Preferably, the second light generating unit 2 is further designed so that the directed light L2 is not emitted from the entire light emitting area 4 at one point in time, but only from a part or section thereof. In particular, it can advantageously be provided that the directed light L2 - as indicated in FIG. 3 - only leaves the second light generating unit 2 from a location area 41 within the light emission area 4. A particularly suitable lighting effect can be achieved if the second light generating unit 2 is designed such that this location area 41 can be changed over time within the light emission area 4, in particular such that the location area 41 moves along a path or a line over time , In the case of the annular configuration of the light-emitting area 4 shown here, provision can advantageously be made for the location area 41 to move along a circular line within the light-emitting area 4. This makes it particularly suitable to “model” direct lighting from sunlight.
    4.15
    AT15 853U1 2018-07-15 Austrian Patent Office In the sketch in FIG. 1, the direction of radiation R is represented by an arrow on the right side. An analog arrow is sketched on the opposite left side, which accordingly symbolizes the direction of radiation at another point in time.
    In the case outlined in FIG. 1, the radiation direction R is directed outwards with respect to the arrangement or a center point of the arrangement. However, the direction of radiation can also be directed inwards, as is the case in the example shown in FIG. 3.
    In the example sketched in FIG. 6, the radiation direction R is directed inwards. To illustrate a possible lighting effect, a case is shown here in which the arrangement is fastened to a (not separately drawn) ceiling of a room and illuminates an object G which is located directly below the arrangement, here below the light exit surface 3, for example on a template table located. In this way, the object G is directly illuminated over time by the directed light L2 from different directions. Such a situation can be advantageous in a shop, for example, if the item G is an item to be presented accordingly. As indicated, in the example shown, the shadow of the object G formed by the directed light L2 wanders around in a circle over time. In this way, good illumination with the diffuse light L1 is made possible on the one hand and, on the other hand, a targeted optical highlighting of individual details of the object G is made possible by the directed light L2.
    However, the described light output of the arrangement is also advantageous in a case in which there is no object to be specially illuminated below the arrangement, for example when the directed light L2 illuminates walls of the room in a time-changing manner. As outlined, for example, in Fig. 7; 7 can, but need not, as shown in Fig. 7, provide several corresponding arrangements on the ceiling.
    For the control of the arrangement it can be provided that a corresponding orbital period of the local area 41 traveling on a closed line, for example on the mentioned circular line, is more than one minute and less than twelve hours, preferably more than ten minutes and less than six hours.
    Preferably, the design is such that the control of the second light generating unit 2 takes place automatically. As an alternative or in addition, manual influencing of the second light generating unit 2 can be provided.
    Furthermore, the control can be advantageous in such a way that the diffuse light L1 is emitted by the first light generating unit 1 (within the period of use) unchanged or constant in time. However, it can alternatively also be provided that the arrangement is designed in such a way that the intensity of the diffuse light L1 changes over time, for example depending on a daylight prevailing in an environment of the arrangement. It is preferably provided that the diffuse light L1 effects general room lighting, which is modified by the directed light L2.
    4 shows a cross-sectional sketch of a possible structure of the arrangement. The first light generating unit 1 here has a light guide plate 15, the light exit surface 3 being formed by a surface region of the light guide plate 15 pointing downward here. Furthermore, in this example the first light generating unit 1 has at least one LED 16, preferably a plurality of LEDs 16, as the illuminant, which are arranged in such a way that they radiate a light generated by them laterally over a narrow side surface of the light guide plate 15. On a further surface area 17 of the light guide plate 15 opposite the light exit surface 3, light coupling elements 18 are preferably formed, which deflect the light of the LEDs 16 downwards in such a way that it at least partially leaves the light guide plate 15 via the light exit surface 3 as the diffuse light L1. Corresponding light control is known per se.
    Alternatively, the first light generating unit 1 for generating the diffuse light L1
    5.15
    AT15 853U1 2018-07-15 Austrian
    Patent Office, for example, have an OLED (OLED: organic LED) or be designed such that the diffuse light L1 is generated by means of transmitted light.
    As further shown in the example shown in FIG. 4, the second light generating unit 2 can have a plurality of lamps 11, preferably in the form of at least one LED, in particular LEDs which are arranged on a particularly closed line, preferably a circular line , in particular equidistant to each other. The configuration is preferably such that the means 11 for influencing the second light generating unit 2 can be used to switch the lamps 11 on and off one after the other. A sequential control of the illuminants 11 can thus be provided, so to speak, such that the directed light L2 is emitted in different emission directions R at different times. In this way, it can be particularly suitably effected that the local area 41 - as mentioned above - moves in time, that is to say “wanders” along a line, for example along the said circle.
    Furthermore, the second light generating unit 2 also preferably has an optical element which serves to influence a light emitted by the illuminants 11, for example in the form of a reflector 5. The optical element is preferably arranged in a fixed position relative to the first light generating unit 1. In the example shown, the reflector 5 extends in a ring shape in accordance with the arrangement of the illuminants 11. Alternatively, instead of the reflector 5, for example, a lens arrangement with one lens or a plurality of lenses or the like could be provided.
    The illuminants 11 are preferably oriented such that they emit their light mainly in a direction that includes an angle with the surface normal N of the light exit surface 3 that is greater than 90 °, preferably greater than 100 °. In this way, the risk can be reduced that a user looks directly at a light-emitting surface of the illuminants 11 and is thereby blinded. The reflector 5 can then suitably deflect the light from the illuminants 11 downwards.
    In the example shown, a shading element 19 is also provided, which is arranged next to the illuminants 11 such that when the arrangement is viewed from the outside, a view of a light-emitting surface of the illuminants 11 is reliably excluded.
    FIG. 5 corresponds to the illustration in FIG. 4, with some light rays being shown by way of example for illustration.
    In order to achieve the desired effect, it is fundamentally not necessary for the local area 41 to move in small, overlapping steps; it can also be provided that it moves in jumps. In such a case, the light-emitting region 4 does not have to be closed in the form of a ring.
    In the example shown, the light emission area 4 extends around the light exit surface 3 of the first light generating unit 1. However, this is not absolutely necessary. Alternatively, it can be provided, for example, that the directed light L2 is also emitted via the light exit surface 3. In this way, a particularly homogeneous external appearance of the arrangement can be achieved.
    In the example shown, the light emission area 4 extends symmetrically with respect to the light exit surface 3. However, this is not absolutely necessary. The light emission area 4 can in principle also be designed asymmetrically with respect to the light exit surface 3.
    In the example shown, the light exit surface 3 is circular and also the entire arrangement. However, this is not absolutely necessary; another shape can also be provided, for example an elliptical, square, rectangular or otherwise polygonal.
    The reflector 5 shown is a secondary reflector. Grundsätz6 / 15
    AT15 853U1 2018-07-15 Austrian patent office lend is also suitable, for example, a direct reflector.
    In the above description, with reference to the control of the two light generating units 1, 2, in particular the means for influencing the second light generating unit 2 have been discussed. However, the arrangement preferably also has further means which are designed to influence the first light generating unit 1, for example in such a way that an intensity of the diffuse light L1 can be changed. The configuration is preferably such that the means and the further means can work independently of one another, so that (within the period of use) the diffuse light L1 can in principle be changed independently of the direct light L2. Furthermore, the means for influencing the second light generating unit 2 are preferably also designed to change an intensity of the directed light L2. In this way, the intensities of the diffuse light L1 and the directional light L2 can be suitably matched to one another. This also advantageously creates a changing spatial impression.
    In the arrangement according to the invention, two “optical systems” are integrated, so to speak, through which light with different emission characteristics are generated, namely the diffuse light L1 and the directional light L2. This combination can create a balanced spatial impression. This spatial impression can also be influenced and changed by the temporal variability of the directed light L2.
    The changeable radiation direction R of the directed light L2 not only allows a specific object to be illuminated, it can, for example, also react to changing furniture in the room.
    By integrating the two light generating units within an arrangement, it can be achieved that there is a clear, uninterrupted appearance of a typical diffuse panel lamp. A quiet ceiling appearance can be achieved since only one arrangement has to be planned. In addition, a surprise effect can be created by changing the spatial impression quickly.
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    权利要求:
    Claims (15)
    [1]
    Expectations
    1. General lighting arrangement, having
    - a first light generating unit (1) for generating a diffuse light (L1),
    a second light generating unit (2) for generating a light (L2) directed in an emission direction (R),
    - Means for influencing the second light generating unit (2), characterized in that the means are designed to influence the second light generating unit (2) in such a way that the direction of radiation (R) changes as a function of time.
    [2]
    2. Arrangement according to claim 1, wherein the first light generating unit (1) has a preferably planar and preferably circular light exit surface (3) via which the diffuse light (L1) is emitted and the second light generating unit (2) has a light emitting area (4) , via which the directed light (L2) is emitted, the light emitting region (4) preferably forming a surrounding region of the light exit surface (3).
    [3]
    3. Arrangement according to claim 2, wherein the second light generating unit (2) is designed such that the direction of radiation (R) with a normal (N) of the light exit surface (3) always includes an angle (α) that is greater than 0 ° , preferably greater than 10 °.
    [4]
    4. Arrangement according to claim 3, wherein the angle (α) is less than 70 °, preferably less than 60 °.
    [5]
    5. Arrangement according to one of claims 2 to 4, wherein the light-emitting region (4) extends in a ring around the light exit surface (3), the light exit surface (3) preferably having a diameter of at least 30 cm, in particular at least 50 cm.
    [6]
    6. Arrangement according to one of claims 2 to 5, wherein the second light generating unit (2) is designed such that a location area (41) within the light emitting area (4), from which the directed light (L2) the second light generating unit (2 ), can be changed over time.
    [7]
    7. Arrangement according to one of the preceding claims, in which the second light generating unit (2) has a plurality of illuminants (11), preferably in the form of LEDs, which can be switched on and off one after the other in time by the means for influencing the second light generating unit (2) ,
    [8]
    8. Arrangement according to claim 7, wherein the illuminants (1) are arranged on a particularly closed line, preferably a circular line, in particular equidistant from one another.
    [9]
    9. Arrangement with the features mentioned in claims 6 and 8, in which the second light generating unit (2) can be influenced by the means in such a way that the location area (41) moves along the line.
    [10]
    10. Arrangement according to one of the preceding claims, wherein the second light generating unit (2) has an optical element, for example a reflector (5), which is preferably arranged in a fixed position relative to the first light generating unit (1).
    [11]
    11. Arrangement according to one of the preceding claims, wherein the first light generating unit (1) and the second light generating unit (2) are arranged in a common housing (6), wherein the housing (6) is preferably intended to be mounted on a ceiling area become.
    8.15
    AT15 853U1 2018-07-15 Austrian
    Patent Office
    [12]
    12. A method for controlling an arrangement for general lighting, in particular according to one of the preceding claims, comprising the following steps:
    (a) activating a first light generating unit (1) for generating a diffuse light (L1), (b) activating a second light generating unit (2) for generating a light (L2) directed in an emission direction (R), characterized by the following further Step (c) influencing the second light generating unit (2) in such a way that the direction of radiation (R) changes as a function of time.
    [13]
    13. The method according to claim 12, wherein during step (c) the diffuse light (L1) is emitted at a constant time.
    [14]
    14. The method according to claim 12 or 13, wherein the arrangement has the features mentioned in claim 9, in which the second light generating unit (2) is influenced such that the location area (41) moves along the closed line, such that the corresponding Orbital period is more than one minute and less than twelve hours, preferably more than ten minutes and less than six hours.
    6 sheets of drawings
    9/15 Austrian
    Patent Office
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    [15]
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    同族专利:
    公开号 | 公开日
    EP3172483A1|2017-05-31|
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    EP3172483B1|2018-09-12|
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    法律状态:
    2020-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20191031 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014214114.1A|DE102014214114A1|2014-07-21|2014-07-21|Arrangement for general lighting and method for controlling such|
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