EP3745020B1 - Lamp - Google Patents

Description

The present invention relates to a lamp with at least one projection headlight for emitting a light beam and a mirror and/or lens panel for deflecting the light beam of the projection headlight onto one or more surfaces to be illuminated.

Luminaires with a headlight that has a number of LEDs and a mirror and/or lens panel for deflecting the light beam of the headlight are, for example, from the documents U.S. 6,250,774 B1 , EP 22 64 362 A1 or US 2012/0039613 A1 famous.

Indirect lighting systems are often used to illuminate a room or an area brightly and evenly and to create a homogeneous appearance without causing hard shadows due to high light pressure. The light beam cone emitted by the projection headlight is not directed directly onto the surface to be illuminated or the area to be illuminated, but first away from the area to be illuminated onto a mirror, which deflects the light beam and directs it onto the surface to be illuminated. For example, reading corners in a living room or a desk in an office can be indirectly illuminated from above by the projection spotlight emitting the light beam upwards towards the ceiling and a mirror arranged above the projection spotlight throwing the light beam back down onto the armchair in the reading corner or the desk . In similarly, outdoor lights can indirectly illuminate the space to be lit. For example, street lamps are known in which a projection headlight shines vertically or diagonally upwards into the sky, with a mirror arranged above the projection headlight directing the light back down onto the pavement, the street or the public square. Facade lighting can also be constructed in a corresponding manner, with a projection spotlight being able to radiate away from the facade and a mirror arranged in front of the facade reflecting the light back onto the facade.

Not only mirrors, but sometimes also lens panels or plates are used in order to deflect and/or reshape the light coming from the projection headlight. Such lens panels can comprise one or more, in particular also many, lens sections or facets arranged in a matrix form, each of which reshapes the light in the desired manner, with such lens panels being designed in the manner of a table top, but also curved, for example slightly bowl-shaped.

Depending on the different applications, such lamps can be designed as floor lamps or table lamps, in which the projection spotlight and the mirror and/or lens panel can be attached one above the other to a common support, for example in the form of a stand or a lamp post. Alternatively, the projection headlights and mirrors or lens panels can also be part of a pendant light that is suspended from the ceiling in a pendulum fashion. Other mounting options are also possible depending on the application.

It is helpful here if the mirror and/or lens panel is fastened or mounted such that it can be changed in its angular position, in order to be able to adjust the area to be illuminated by tilting the panel. It is also helpful if the distance between the projection spotlight and the mirror and/or lens panel can be adjusted, possibly also in connection with an adjustment the focal length of the optics of the projection headlight in order to be able to make the area to be illuminated smaller or larger.

The projection headlights can themselves have optics in the form of a lens and/or a reflector connected upstream of the light source, in order to convert the light emitted by one or more light sources into a light beam, which expands conically in the desired manner or can also be asymmetrical. If the projection optics include lenses and/or reflectors that can be adjusted relative to one another in the manner of a zoom lens, the widening of the light beam can be changed.

However, such adjustment options for the mirror or lens panel alignment and/or the projection optics are often not sufficient to actually be able to illuminate the area to be illuminated in the way that would be necessary due to the room situation or as desired by an individual room user.

The present invention is therefore based on the object of creating an improved lamp of the type mentioned which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner. In particular, a situation-dependent adaptability of the room illumination should be made possible, which makes it possible to illuminate different surfaces or areas differently and enables different lighting atmospheres.

According to the invention, the stated object is achieved by a lamp according to claim 1. Preferred developments of the invention are the subject matter of the dependent claims.

It is therefore proposed to pixelate the light beam emitted by the projection headlight and also the mirror and/or lens panel on which the emitted light beam impinges and to break it down into a large number of points of light or small mirror surface pieces or small lens pieces. The mirror is designed as a mirror facet matrix that includes a large number of mirror facets, or the lens panel is designed as a lens matrix comprising a large number of lenses and the projection headlight has a light source field which comprises a large number of pixel or point light sources, and projection optics which direct the light from various pixel or point light sources onto various mirror and /or throws lens facets. In particular, the projection optics mentioned are designed in such a way that the pixel or point light sources of the light source field do not illuminate all or even the majority of the various mirror and/or lens facets, but the light of a pixel or point light source of the light source field only on one or a few mirror and/or lens facets. Through the targeted illumination of individual facets of the mirror and/or lens field, different functions can be assigned to the facets or different illumination characteristics can be achieved.

According to the invention, it is provided that a control device is provided for individually setting different lighting scenarios in different sub-areas of the surface to be illuminated and is designed to control the pixel-shaped or punctiform light sources of the light source field individually or in groups depending on the light intensity and/or light color desired in the respectively illuminated sub-area to control differently.

In a further development of the invention, it can advantageously be provided that the number of pixel and/or point light sources in the light source array is an integer multiple of the number of mirror and/or lens facets or corresponds to the stated number of mirror and/or lens facets. In other words, the same number or more pixel or point light sources are provided as there are mirror and/or lens facets.

Advantageously, the projection optics of the projection headlight can be designed in such a way that with the same number of light source points and mirror facets, one-to-one illumination is implemented, ie each pixel or point light source illuminates "its" mirror and/or lens facet. Especially each pixel or point light source can only radiate onto one mirror and/or lens facet, with each light source radiating onto a different mirror and/or lens facet.

As an alternative to this, it can also be provided that when there are more pixel or point light sources than mirror and/or lens facets, several light sources or several emitters combined in groups radiate together onto one light facet. For example, it can be provided that two or three or four or more pixel or point light sources radiate onto a common mirror and/or lens facet. In this case, it can advantageously also be provided that each pixel-shaped or point-shaped light source or each emitter radiates onto only one light facet.

Alternatively, however, more mirror and/or lens facets can also be provided than emitters or light sources. In this configuration, a light source or an emitter can each irradiate several facets, for example in a ratio of 1:2, so that each emitter always irradiates two facets, but other assignments are also possible, for example such that one emitter has four facets and another emitter three facets irradiated.

Advantageously, the ratio of light sources or emitters to mirror and/or lens facets can be in the range from 4:1 to 1:4.

In order to achieve planar illumination in the target area, different mirror and/or lens facets, which can irradiate different partial areas in the target area, can produce at least approximately the same light distributions in the target area.

Advantageously, the pixel or point light sources of the light source field can be controlled individually or in groups, so that different mirror and/or lens facets of the mirror and/or lens facet matrix can be illuminated in different ways and/or variably. Especially the pixel or point light sources can be switched on and off and/or dimmed and/or changed in their light color individually or in groups. Accordingly, by switching on or off, dimming or changing the color of individual light source points or individual groups of light source points, it is possible to switch off different mirror and/or lens facets or to irradiate them more brightly or to irradiate them differently in color and accordingly focus on the area or area to be illuminated. to illuminate different sub-areas differently in the area to be illuminated.

For example, in the case of a reading corner or desk that is to be illuminated, only a used reading chair or the side of the desk that is in use can be brightly illuminated, while a remaining part of the reading corner or an opposite section of the desk remains unlit or less brightly lit. In the same way, for example, a used reading area or the document area in front of the desk chair can be illuminated with high-contrast, rather white light in order to be able to read better, while an unused part of the reading corner or the remaining part of the desk is illuminated in a warm white or stronger yellow can to emphasize the atmosphere of the room.

Advantageously, the individual pixel-shaped or point-shaped light sources of the light source field can be variably controlled individually or in groups, each independently of one another, so that, for example, one light source point can be dimmed and/or changed in the light color and/or switched off individually, independently of the on and off status of the other light source points or can be switched on. With such an individual controllability of the individual light source points of the light source field, a large variability in the illumination possibilities is achieved, which allows an almost arbitrarily fine adjustment to the respective situation.

For example, two emitters can irradiate one facet or facet group of the mirror and/or lens panel, one of the two emitters can emit warm white light and the other cold white light, so that depending on the dimming or switching off of one or the other spotlight, cold white or warm white light or a mixture thereof can be generated. In a development of the invention, emitters of different colors or more than two emitters can also be combined to form a group of emitters, which irradiate the same facets in order to be able to vary the color shade in the manner mentioned.

In an advantageous development of the invention, the light source field mentioned with a multiplicity of point-like or pixel-like light sources can comprise one or more pixel LEDs. Such pixel LEDs are known per se and comprise a matrix-like field of luminous dots, which can be formed from separately controllable semiconductor chips, which can be combined to form a common LED chip, in particular arranged on a common carrier substrate and/or from a common or also from separate ones Primary lenses can be covered or embedded in it.

Such pixel LEDs regularly include a large number of LED pixels, for example more than 50 or more than 100 or even more than 500 LED pixels. For example, pixel LEDs in the form of 32 by 32 pixels arranged in a matrix can be used.

Advantageously, said light source matrix can be designed in the form of a plate, in particular as a flat plate.

The projection optics connected in front of the light source field can comprise one or more lenses and/or one or more reflectors, it also being possible for hybrid optics in the form of at least one lens and at least one reflector to be provided. Advantageously, said projection optics are designed in such a way that they capture all of the light emitted by the light source field and form it into a bundle of light rays, which is thrown onto said mirror.

The projection optics form an imaging optics. The projection optics have at least one common lens and/or a common reflector, which is irradiated with light from the plurality of light sources and throws the light of a respective light source individually onto only one or more mirror and/or lens facets.

Said mirror and/or lens panel can also advantageously be designed as a plate, in particular as a flat plate, with the mirror and/or lens facet matrix being plate-shaped only when viewed as a whole due to the optionally slightly convex or slightly concave contouring of the mirror and/or lens facets and can have a slight transition and/or a slightly relief-like contouring from mirror and/or lens facet to mirror and/or lens facet. Viewed overall, however, the mirror and/or lens facet matrix is advantageously designed in the form of a thin, in particular approximately flat, plate.

In a development of the invention, said mirror and/or lens facet matrix is arranged at a distance from the projection headlight. In particular, said mirror and/or lens facet matrix is not located within a headlight housing, but is arranged outside and at a distance from the headlight housing. Nevertheless, the lamp can comprise a common support for the mirror and/or lens facet matrix and the projection headlight, for example in the form of a floor lamp support, a table lamp support arm or a pendant light support, on which both the mirror and/or lens facet matrix and the projection headlight are mounted at a distance from one another be able.

The mirror facets and/or lens facets of the mirror and/or lens facet matrix mentioned can basically all be designed and/or contoured and/or dimensioned the same. Alternatively, the mirror and/or lens facet matrix can also comprise mirror facets and/or lens facets that are designed differently from one another, in order to irradiate a facet group to realize a different lighting scenario than when irradiating differently designed facets.

Said mirror and/or lens facet matrix can consist exclusively of mirror facets, or alternatively consist exclusively of lens facets. Alternatively, the facet panel can include both mirror facets and lens facets, for example in a pattern that uniformly intersects one another, wherein a mirror facet and a lens facet can be arranged alternately, for example viewed in rows and columns.

Such mixed mirror and lens facet panels can be particularly advantageous in order to illuminate different spatial areas that lie on different sides of the panel differently when the panel is irradiated from one side. If, for example, such a mixed panel is irradiated from below in a horizontal orientation, light beams can be directed onto the floor via the mirror facets and thus a floor area can be illuminated via the mirror facets, while the light component passing through the lenses can illuminate a ceiling area.

If such a mixed panel is illuminated from opposite sides, different lighting scenarios can be achieved in the same area to be illuminated by, for example, different photometric design of the mirror facets and the lens facets. For example, if a mixed panel is arranged horizontally and radiators are provided above and below, a floor area can be illuminated by irradiation from below via the mirror facets. At the same time, a bottom area, which can be arranged or formed congruently or differently, can also be illuminated by irradiating the panel from above, namely via the lens facets.

In particular, the mirror and/or lens facet matrix can comprise mirror and/or lens facets that widen to different extents or create more zones, i.e., on the one hand, mirror and/or lens facets that emit the light beam that is thrown onto it at a relatively wider beam angle, and on the other hand, mirror and/or lens facets that widen or focus less, and that emit the light beam that is beamed onto it relatively narrower or emit it in a focused manner.

Alternatively or additionally, the mirror and/or lens facet matrix can also include the diffusely radiating mirror and/or lens facets. Such mirror and/or lens facets can be designed, for example, in the form of reflector facets with a surface structure or roughening or white or with a crystal carpet-like mirror fine relief.

In particular, the mirror and/or lens facet matrix can comprise concave mirror facets and convex lens facets. Alternatively or additionally, mirror and/or lens facets designed like saddle surfaces can also be provided and combined with other mirror and/or lens facet shapes.

If the panel also includes lens facets, lens facets that widen or zone more strongly can be provided, i.e. on the one hand lens facets that emit the light beam that is thrown onto it at a relatively wider beam angle, while lens facets that widen or focus to a lesser extent emit the light beam that is beamed onto it relatively narrower or radiate focused.

Alternatively or additionally, diffusely emitting lens facets can also be provided, which can be provided with a frosted or structured light emitting surface, for example.

In a further development of the invention, mirror and/or lens facets which are contoured in the same way but also differently contoured can also be provided, the main emission directions of which diverge from one another. For example, a first group of mirror and / or lens facets can be provided, the dated Projector headlights tend to direct the light coming from the left to the left, while a second set of mirror and/or lens facets tends to direct the projection headlight light to the right. Such a grouping of the mirror and/or lens facets can be used, for example, to illuminate a used half of a desk used as a double workstation and leave the unused half unlit in order to save light.

As an alternative or in addition to mirror and/or lens facets that are differently contoured and/or radiate in different directions, differently coated mirror and/or lens facets can also be provided. For example, a first group of mirror and/or lens facets can be provided with a coating that emits cool white, while a second group of mirror and/or lens facets is coated in such a way that it emits warm white. Such different coatings of individual mirror and/or lens facets can consist of different materials, for example. For example, mirror and/or lens facets with an aluminum surface and mirror and/or lens facets with a gold-plated surface can be used to create the corresponding light color tone. More golden light or more white light can be generated by selecting the respective mirror and/or lens facets, which can be done by driving the corresponding LED pixels.

In an advantageous development of the invention, the pixel-like light source field can also be activated dynamically and/or automatically as a function of one or more signals from a sensor system, with which sensor system environmental and/or lighting parameters can be detected.

In particular, in a further development of the invention, a control device can be provided which enables shadow management. In particular, when individual mirror and/or lens facets and/or the surface sections of the illuminated surface illuminated by the mirror and/or lens facets are shadowed, the light source points illuminating these mirror and/or lens facets can be switched off. For example, if there is an obstacle between the projection headlight and the mirror or lens matrix, so that some mirror or lens facets are no longer illuminated by the spotlight, the light source points that would actually illuminate the shaded facets can be switched off in order to save power.

A corresponding sensor system can include light and/or brightness sensors, for example, which can be integrated into the mirror and/or lens facets or arranged in the immediate vicinity in order to irradiate the individual mirror and/or lens facets or individual mirror and/or to detect lens facet groups.

As an alternative or in addition to a detection device that detects the shading of one or more mirror and/or lens facets, a detection device can also be provided that detects shading of the partial surface sections of the surface to be illuminated that are illuminated by individual mirror and/or lens facets . For example, if four subgroups of the mirror and/or lens facets illuminate four different partial surface areas of a desk, a sensor element can be integrated into each of the four desk partial surface sections, which detects the illumination or light intensity in the respective partial surface section. If shadowing occurs in one of the partial surface areas or in several partial surface areas, although the associated mirror and/or lens facets are still illuminated, it can be concluded that a hand or a head or another obstacle is between the mirror and the surface to be illuminated . Accordingly, the light source points of the light source field can also be controlled as a function of the signals from the sensor system that detects the area to be illuminated.

Fig. 1:

eine Seitenansicht einer Leuchte mit einem Projektionsscheinwerfer und einer Spiegelfacettenmatrix nach einer vorteilhaften Ausführung der Erfindung, wobei die Leuchte in Form einer Stehleuchte ausgebildet ist, bei der der Projektionsscheinwerfer nach oben zur Decke bzw. zum Himmel hin strahlt und die darüberliegend angeordnete Spiegelfacettenmatrix das Licht zurück auf den Boden wirft,

Fig. 2:

eine Seitenansicht der Leuchte ähnlich Figur 1, die eine Kombination verschieden konturierter Spiegelfacetten in Form von ebenen Spiegelfacetten und konkaven Spiegelfacetten zeigt,

Fig. 3:

eine Seitenansicht der Leuchte ähnlich Figur 1, die eine weitere Kombination unterschiedlich konturierter bzw. beschaffener Spiegelfacetten zeigt, wobei die fußabstrahlenden Spiegelfacetten mit zoniert abstrahlenden, konkaven Spiegelfacetten und ebenen Spiegelfacetten kombiniert sind,

Fig. 4:

eine perspektivische Ansicht der Spiegelfacettenmatrix schräg von unten, die die Aufteilung in Spiegelfacetten zeigt,

Fig. 5:

eine Draufsicht auf die Spiegelfacettenmatrix des Spiegels aus den vorhergehenden Figuren,

Fig. 6:

eine schematische Schnittansicht des Projektionsscheinwerfers der Leuchte aus den vorhergehenden Figuren, wobei das Lichtquellenfeld in Form einer Pixel-LED und die davor geschaltete Projektionsoptik in Form eines Linsenpakets gezeigt sind,

Fig. 7:

eine Draufsicht auf die Pixel-LED, die das pixelförmige Lichtquellenfeld des Projektionsscheinwerfers bildet,

Fig. 8:

eine schematische Schnittansicht einer Leuchte mit einem Spiegelfacetten- und Linsenfacettenpanel, welches sowohl Spiegelfacetten als auch Linsenfacetten umfasst, und

Fig. 9:

eine Schnittansicht einer Leuchte ähnlich Fig. 8, deren Spiegel- und Linsenpanel sowohl Spiegelfacetten als auch Linsenfacetten umfasst, wobei das Panel von gegenüberliegenden Seiten her durch zwei Projektionsscheinwerfer beleuchtbar ist.

The invention is explained in more detail below using a preferred exemplary embodiment and associated drawings. In the drawings show:

Figure 1:

a side view of a lamp with a projection headlight and a mirror facet matrix according to an advantageous embodiment of the invention, the lamp being designed in the form of a floor lamp in which the projection headlight shines upwards towards the ceiling or towards the sky and the mirror facet matrix arranged above the light back on throws the ground

Figure 2:

a side view of the lamp similar figure 1 , which shows a combination of differently contoured mirror facets in the form of flat mirror facets and concave mirror facets,

Figure 3:

a side view of the lamp similar figure 1 , which shows another combination of mirror facets with different contours or properties, whereby the mirror facets that radiate from the foot are combined with concave mirror facets that radiate in zones and flat mirror facets,

Figure 4:

a perspective view of the mirror facet matrix diagonally from below, showing the division into mirror facets,

Figure 5:

a top view of the mirror facet matrix of the mirror from the previous figures,

Figure 6:

a schematic sectional view of the projection headlight of the lamp from the previous figures, the light source field in the form of a pixel LED and the projection optics connected in front of it being shown in the form of a lens pack,

Figure 7:

a top view of the pixel LED that forms the pixel-shaped light source field of the projection headlight,

Figure 8:

a schematic sectional view of a lamp with a mirror facet and lens facet panel, which includes both mirror facets and lens facets, and

Figure 9:

a sectional view of a lamp similar 8 , whose mirror and lens panel includes both mirror facets and lens facets, the panel being able to be illuminated from opposite sides by two projection headlights.

As the Figures 1 to 3 show, the lamp 1 can be designed, for example, in the form of a floor lamp, which can have an upright lamp support 2, for example in the form of a post, which can be set up on the ground by means of a support plate. It goes without saying, however, that other light supports 2 or light supports that can be mounted in a different way can also be used.

On the one hand, a projection headlight 3 is mounted on said lamp support 2, which emits a conical or club-shaped light beam 5. Said projection spotlight 3 is mounted on the light carrier 2 in such a way that it radiates in the wrong direction, i.e. it does not radiate onto the surface 6 to be illuminated or the area to be illuminated, but in a direction opposite thereto or leading away at an angle shine. For example, if the floor lamp is to illuminate the floor, the projection spotlight 3 shines towards the ceiling or towards the sky.

In order nevertheless to irradiate the surface 6 to be illuminated as desired, the lamp 1 also includes a mirror 4 which can also be mounted on the lamp carrier 2 at a distance from the projection headlight 3 . In the case of a floor lamp, said mirror 4 can be mounted above projection headlight 3 .

As the figures 4 and 5 show, said mirror 4 viewed as a whole can be at least approximately plate-shaped, in particular in the form of a flat, be formed thin plate, depending on the application but also a curved plate or a slightly trough-shaped contoured shell can be provided as a mirror.

Said mirror 4 is in the form of a mirror facet matrix which comprises a large number of mirror facets 7 which can be arranged in a number of rows next to one another or one above the other. The mirror 4 is thus subdivided into a multiplicity of mirror facets 7 which are arranged overall in a pattern or form a facet pattern.

The mirror facet matrix can have more than 10 or more than 50 or more than 100 mirror facets.

As the figures 6 and 7 show, the light source 8 of the projection headlight 3 is also divided into a light source field consisting of a large number of point or pixel-shaped light sources, which light source field can also be plate-shaped or flat. In particular, the light source 8 can include one or more pixel LEDs 9, which can include more than 5 or more than 10 or more than 50 or even more than 100 pixel-like light sources, which can be formed by individually controllable semiconductor chips.

At least one projection optics 10 is connected upstream of the one or more pixel LEDs 9 of the projection headlight 3, which captures the light of the pixel LED 9 radiated into the hemisphere and forms it into a light beam 5, which is thrown onto the mirror 4. how figure 6 shows, said projection optics 10 can include, for example, one or more lenses 11, but optionally also one or more reflectors.

Said projection optics 10 are designed in such a way and the building block mirror 4, projection headlight 3 and light source field are coordinated in such a way that the light from an individual pixel of the pixel LED 9 is directed onto only one mirror facet 7 is thrown, with several pixels of the pixel LED 9 possibly being able to irradiate the same mirror facet 7 .

As the figures 2 and 3 make clear, differently configured mirror facets 7 can be provided in the mirror facet matrix of the mirror 4 and combined with one another. how figure 2 shows, concavely contoured mirror facets 7 can be provided, which emit at a wide angle of radiation in order to broadly irradiate the area 6 to be illuminated.

Alternatively or additionally you can also like this figure 3 shows, narrower radiating or focusing or zoning mirror facets 7 can be provided in order to brightly irradiate small sub-areas.

Alternatively or additionally, diffusely radiating mirror facets 7 can also be provided.

Irrespective of this, the mirror facets 7 can be coated differently individually or in groups, for example with a cold white aluminum coating and with a gold coating that radiates warm white.

how figure 1 shows, the lamp 1 can also have a detection device 12, which can include, for example, a plurality of sensor elements 13 in order to detect the shading of a mirror facet 7 or individual mirror facet groups and/or to detect the shading of individual partial surface areas of the surface 6 to be illuminated.

A control device 14, by means of which the pixel points of the pixel LEDs 9 can be controlled individually, can switch off or dim down the pixels of the pixel LEDs 9, which irradiate the shaded mirror facets 7 or the mirror facets 7, their associated Areas of the illuminated area 6 are shaded.

Advantageously, said control device 14 can also include input means 15 for manually entering different, preselectable lighting scenarios in order to illuminate mirror facets 7 individually and/or in groups differently and correspondingly to generate different lighting scenarios on surface 6 to be illuminated. Said input means 15 can include input means to be actuated manually, such as a touch screen, but also other input means, such as a voice control element and the like.

how figure 8 1 shows, a mirror and lens panel 4 can comprise both mirror facets 7 and lens facets 70, wherein said mirror facets 7 and lens facets 70 can be arranged in an alternating pattern. By using both mirror facets 7 and lens facets 70, part of the light radiated by the projection headlight 3 onto the panel 4 can be reflected back, as explained in the previous explanations, while another part of the light, namely that which impinges on the lens facets 70 Part of the light passes through the panel 4 and is emitted in a contoured or shaped manner on the opposite side of the lenses.

With such a mixed panel 4 comprising both mirror facets 7 and lens facets 70, both a floor area can be illuminated in the desired way and a ceiling area can be illuminated in the desired way, for example with only one projection headlight, with the two floor and ceiling areas are illuminated in different ways on the one hand by the mirror facets 7 and on the other hand by the lens facets 70 and are correspondingly controlled.

how figure 9 shows, such a mixed panel 4 with mirror facets 7 and lens facets 70 can also be illuminated from both sides by at least one projection headlight 4, so that the light patterns achieved can be switched over in a simple manner. If the lower projection spotlight 3 is operated, the light distribution on the floor and ceiling area is created beforehand figure 8 illustrated.

However, if the upper projection headlight 3 is operated, the lighting conditions are reversed, so to speak, since the ceiling area is then illuminated by the light reflected from the mirror facets 7, while the floor area is illuminated by the light component that passes through the lens facets 70.

A further variability can be generated in that both projection headlights 3 irradiate both sides of the mirror and lens panel.

Claims (18)

1. A lamp having at least one spotlight (3) for irradiating a light beam bundle (5) and having a mirror and/or lens panel (4) for deflecting the light beam bundle (5) of the spotlight (3) onto one or more surfaces (6) to be illuminated, wherein the mirror and/or lens panel (4) is configured as a mirror and/or lens facet matrix that comprises a plurality of mirror and/or lens facets (7; 70), and the spotlight (3) comprises a light source field having a plurality of pixel-like or spot-like light sources (8), wherein a control device (14) is provided for an individual setting of different illumination scenarios in different partial regions of the surface (6) to be illuminated and is configured to control the pixel-like or spot-like light sources (8) of the light source field differently individually or group-wise in dependence on a light intensity and/or light color desired in the respectively illuminated partial region,
   characterized in that
   the spotlight is configured as a projection spotlight (3) having a projection optics (10) in the form of an imaging optics having at least one common lens and/or one common reflector for the plurality of pixel-like or spot-like light sources that images the light from different pixel-like or spot-like light sources of the light source field onto different mirror and/or lens facets (7; 70).
2. A lamp in accordance with the preceding claim, wherein a detection device (12) is provided for detecting at least one environmental and/or illumination parameter, with the control device (14) being configured to differently control different light sources (8) of the light source field in dependence on a signal of the detection device (12) to generate different illumination scenarios in the respectively irradiated partial regions.
3. A lamp in accordance with the preceding claim, wherein the detection device (12) is configured to detect a shadowing of individual mirror and/or lens facets (7; 70) or of a mirror and/or lens facet group and/or the shadowing of a partial section of the surface (6) to be illuminated, wherein the control device (14) dims and/or switches off the light sources in dependence on a signal of the detection device (12), said light sources irradiating a shaded mirror and/or lens facet and/or a shaded partial section of the surface (6) to be illuminated and/or changing the light color and/or light intensity of the light sources that irradiate a non-shaded mirror and/or lens facet and/or a non-shaded partial section of the surface (6) to be illuminated.
4. A lamp in accordance with one of the preceding claims, wherein the control device (14) has input means (15) to individually preselect different light intensities and/or different light colors in different partial regions of the surface (6) to be irradiated and is configured to differently control different light sources of the light source field in dependence on the illumination scenario preselected for the respectively irradiated partial region by means of the input means (15).
5. A lamp in accordance with one of the preceding claims, wherein the at least one common lens (11) and/or the common reflector of the imaging optics casts the light of a respective light source (8) individually only on one or more mirror and/or lens facets.
6. A lamp in accordance with one of the preceding claims, wherein the number of pixel-like and/or spot-like light sources of the light source field is a whole-number multiple of the number of mirror and/or lens facets (7; 70) or corresponds to the number of mirror and/or lens facets (7; 70).
7. A lamp in accordance with one of the preceding claims, wherein the mirror and/or lens facet matrix, the projection optics (10), and the light source field are coordinated with one another such that every mirror and/or lens facets (7; 70) is irradiated by another light source spot or another group of light source spots of the light source field.
8. A lamp in accordance with one of the preceding claims, wherein the projection spotlight (3) is configured such that every pixel-like or spot-like light source (8) of the light source field only irradiates one mirror and/or lens facet (7; 70).
9. A lamp in accordance with claim 1, wherein the number of mirror and/or lens facets (7; 70) is greater than the number of light sources (8) of the light source field, with every light source (8) preferably irradiating two or more mirror and/or lens facets (7; 70).
10. A lamp in accordance with one of the preceding claims, wherein the light source field of the projection spotlight (3) comprises a pixel LED (9) or a plurality of pixel LEDs (9).
11. A lamp in accordance with one of the preceding claims, wherein different mirror and/or lens facets (7; 70) irradiate different partial regions in the target region and in so doing generate substantially the same light distribution in the target region.
12. A lamp in accordance with one of the preceding claims, wherein the mirror and/or lens facets (7; 70) of the mirror and/or lens panel (4) are configured differently and/or the mirror and/or lens panel (4) includes different mirror and/or lens facet types.
13. A lamp in accordance with the preceding claim, wherein the mirror and/or lens panel (4) includes at least two mirror and/or lens facet types that are selected from the following group of mirror and/or lens facet types: wide-beam mirror and/or lens facets, narrow-beam mirror and/or lens facets, diffusely radiating mirror and/or lens facets, cold radiating mirror and/or lens facets, heat radiating mirror and/or lens facets.
14. A lamp in accordance with one of the two preceding claims, wherein the mirror and/or lens panel (4) comprises differently contoured, in particular differently arched, mirror and/or lens facets (7; 70).
15. A lamp in accordance with one of the preceding claims, wherein the mirror and/or lens panel (4) comprises at least two groups of mirror and/or lens facets (7; 70) of which a first group has a first main beam direction and a second group has a second main irradiation direction, wherein the two said main irradiation directions diverge from one another and/or are inclined at an acute angle to one another.
16. A lamp in accordance with one of the preceding claims, wherein the mirror and/or lens facet matrix is formed in plate-shape, in particular as a planar plate.
17. A lamp in accordance with one of the preceding claims, wherein the projection spotlight (3) and the mirror and/or lens panel (4) are arranged spaced apart from one another, with the mirror and/or lens panel (4) being arranged, in particular in an exposed accessible manner, outside a spotlight housing of the projection spotlight (3).
18. A lamp in accordance with one of the preceding claims, wherein the mirror and/or lens facet matrix comprises more than 5 or more than 10 or more than 50 or more than 100 mirror and/or lens facets (7; 70) and/or the light source field comprises more than 5 or more than 10 or more than 50 or more than 100 pixel-like or spot-like light sources.

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