Track lighting system comprising a luminaire with a cooperating reflector module

Abstract

The present invention provides a lighting arrangement (1000) including a lighting unit (1500); wherein the lighting unit (1500) includes a light generating device (100), a reflector (200), and a connector (400), wherein: (A) the light generating device (100) includes an LED light source (10); wherein the light generating device (100) is configured to provide device light (101); (B) the reflector (200) is reflective to the device light (101); wherein the reflector (200) includes a first reflector module (210) and The second reflector module (220) includes a first internal light emission window (211) and a first external light emission window (212), and the second reflector module (220) includes a second internal light emission window (221) and a second external light emission window (222); (C) the first reflector module (210) also includes a first end (215) and a first reflector wall (216); wherein the second reflector module (220) also includes a second end (225) and a second reflector wall (226). The connector (400) is configured to physically connect the first end (215) and the second end (225); the first reflective wall (216) includes two first wall ends (217); the second reflective wall (226) includes two second wall ends (227); the first reflector module (210) and the second reflector module (220) can be configured for different reflector configurations; (D) a first plane (P1) defined through the first end (215) and the two first wall ends (217) and through the second end (225). The second plane (P2) defined by the two second wall ends (227) has an included angle (β), wherein the first reflector is configured with a first included angle (β1) and the second reflector is configured with a second included angle (β2), which is not equal to the first included angle (β1); and (E) the lighting arrangement (1000) is configured to generate arrangement light (1001) including at least a portion of the device light (101), wherein the device light (101) is transmitted through one or more of the first external light exit window (212) and the second external light exit window (222).

Description

Technical Field

[0002] This invention relates to lighting arrangements. It also relates to lighting devices incorporating lighting arrangements. Furthermore, it relates to track lighting systems. Background Technology

[0004] Lighting arrangements are known in the art. For example, US2010277922A1 describes a lighting device comprising a reflector and a high-pressure discharge lamp, the reflector having a reflective outer surface that partially surrounds and defines a focal point within the interior space, the high-pressure discharge lamp being substantially positioned at the focal point of the reflective outer surface. In some examples, the high-pressure discharge lamp comprises an arc tube containing mercury, a metal halide, or sodium. In some examples, the reflective outer surface extends along a longitudinal axis and curves about the longitudinal axis. In some examples, the reflective outer surface defines an elliptical parabola. Summary of the Invention

[0006] Lighting arrangements have been evolving for decades. Such arrangements are commonly used to provide spot and / or track lighting in systems such as theater lighting and shop lighting. Therefore, it seems useful to position the spot of light in the direction of gravity and / or to allow the spot to tilt at different angles. In particular, improved (optical) performance is desired, for example, in terms of beam shaping and / or the appearance of track lighting. Therefore, one aspect of the present invention is to provide an alternative lighting arrangement that preferably further eliminates at least partially one or more of the aforementioned drawbacks. The object of the present invention may be to overcome or improve at least one of the disadvantages of the prior art, or to provide a useful alternative.

[0007] According to a first aspect, the present invention provides an illumination arrangement including an illumination unit. The illumination unit may in particular include a light generating device, a reflector, and a connector. In embodiments, the light generating device may include a solid-state light source, particularly an LED light source. The light source may be configured to generate light from the light source. Furthermore, in embodiments, the light generating device may be configured to provide device light (along the optical axis (O)). In particular, the device light may include, or even essentially consist of, light from the light source. In embodiments, the reflector may be reflective for the device light. In embodiments, the reflector may include a first reflector module and a second reflector module. In embodiments, each reflector module may include an internal light exit window. Additionally, in embodiments, each reflector module may include an external light exit window. In embodiments, the first reflector module may further include a first end and a first reflector wall. Similarly, in embodiments, the second reflector module may include a second end and a second reflector wall. In embodiments, the first reflector module and the second reflector module may be configured to be physically connected (directly and / or indirectly). In particular, in embodiments, the connector may be configured to physically connect the first end and the second end. Furthermore, in embodiments, the first reflector wall may include two first wall ends. Similarly, in embodiments, the second reflector wall may include two second wall ends. In embodiments, the first reflector module and the second reflector module may be configured in different (spatial) reflector configurations (resulting in different beams of device light emanating from the illumination unit). In embodiments, a first plane may be defined by a first end and two first wall ends. Similarly, in embodiments, a second plane may be defined by a second end and two second wall ends. In embodiments, the first plane and the second plane may have an included angle (β). In particular, in the first reflector configuration (of the reflector module), the first plane and the second plane may have a first included angle (β1). Furthermore, in embodiments, in the second reflector configuration (of the reflector module), the first plane and the second plane may have a second included angle (β2). The second included angle (β2) may be particularly not equal to the first included angle (β1). Furthermore, in embodiments, the illumination arrangement may be configured to generate arrangement light. In particular, the arrangement light may include at least a portion of the device light. In embodiments, the device light may be transmitted through one or more of a first external light exit window and a second external light exit window.Therefore, in embodiments, the present invention can provide an illumination arrangement including an illumination unit; wherein the illumination unit may include a light generating device, a reflector, and a connector, wherein: (A) the light generating device may include an LED light source; wherein the light generating device may be configured to provide device light (along an optical axis); (B) the reflector may be reflective to the device light; wherein the reflector may include a first reflector module and a second reflector module; wherein the first reflector module may include a first internal light exit window and a first external light exit window, and wherein the second reflector module may include a second internal light exit window and a second external light exit window; (C) the first reflector module may further include a first end and a first reflector wall; wherein the second reflector module may further include a second end and a second reflector wall; wherein the connector may be configured to physically connect the first end and the second end. ; wherein the first reflector wall may include two first wall ends; wherein the second reflector wall may include two second wall ends; wherein the first reflector module and the second reflector module may be configured in different (spatial) reflector configurations (causing different beams of device light to escape from the illumination unit); (D) a first plane (P1) defined by the first end and the two first wall ends and a second plane (P2) defined by the second end and the two second wall ends may have an angle (β), wherein in the first reflector configuration (of the reflector module) it is a first angle (β1) and in the second reflector configuration (of the reflector module) it is a second angle (β2) that is not equal to the first angle (β1); and (E) the illumination arrangement may be configured to generate arrangement light including at least a portion of the device light, wherein the device light may be transmitted through one or more of the first external light exit window and the second external light exit window.

[0008] This lighting arrangement allows for the provision of spot and / or track lighting in various applications, such as theater lighting systems and shop lighting systems. Reflector modules can provide adjustability of the lighting arrangement (as a whole) to facilitate variations in the direction, size, shape, and angle of the light beam emanating from the lighting arrangement. Therefore, the adjustability of the reflector modules relative to each other can provide improved (optical) performance of the lighting arrangement, at least according to the beam shaping and / or appearance of the (output) light. Thus, in embodiments, the invention can provide a track lighting system comprising an illuminator with two mating reflector halves, wherein the opening angle of the light exit window can be varied in a single direction.

[0009] In a specific embodiment, the present invention provides an illumination arrangement (or "illumination module" or "light generating system") including an illumination unit. In a further embodiment, the illumination unit may include a light generating device, a reflector, and a connector. Embodiments of different elements of the illumination arrangement will be described in more detail below.

[0010] In embodiments, the light generating device may include a solid-state light source. Specifically, the solid-state light source may include a light-emitting diode (LED) light source (i.e., an LED light source). The term "light source" as used herein may also refer to a light source including solid-state light sources (such as LEDs, laser diodes, or superluminescent diodes). Therefore, in embodiments, the LED light source may include a diode selected from the group consisting of (simple) light-emitting diodes (LEDs), multi-junction light-emitting diodes, or superluminescent diodes (see also below). Additionally or alternatively, in embodiments, laser diodes (especially semiconductor lasers) may be used. Therefore, in embodiments, the light generating device may include an LED light source. In embodiments, the LED light source may be configured to generate light source light having a wavelength selected from the visible wavelength range (i.e., the range of 380-780 nm). Additionally or alternatively, in embodiments, the LED light source may be (in embodiments) configured to generate light source light having a wavelength selected from the UV and / or IR wavelength ranges, see also below. In embodiments, the light generating device may be configured to generate device light. In embodiments, device light may include a portion of the light source light. Specifically, in some embodiments, device light may consist essentially of light source light. Furthermore, in embodiments, the light generating device can be configured to generate device light along an optical axis (O). Herein, the term "optical axis" (O) can be defined as an imaginary line that defines the path along which light propagates through the system from the light-emitting element. More specifically, the optical axis (O) can be aligned with the direction of light having the highest radiant flux.

[0011] Furthermore, the term "light generating device" can also refer to two or more light generating devices that can provide device light with essentially the same spectral power distribution. In specific embodiments, the term "light generating device" can also refer to two or more light generating devices that can provide device light with different spectral power distributions.

[0012] In embodiments, the light generating device can be configured to provide device light to a reflector. In embodiments, the reflector module can include a reflector wall (see below). The reflector wall can define an internal reflector space; in other words, the reflector wall can separate the internal reflector space from the external environment. In embodiments, the light generating device can be configured to provide device light to the reflector, particularly to the internal reflector space of the reflector. Therefore, in embodiments, the LED light source of the light generating device can be configured to be centrally arranged on the connector, particularly within the internal reflector space. Additionally or alternatively, in embodiments, the light generating device can include more than one LED light source, such that for each reflector module, a corresponding LED light source can be configured on the connector. Specifically, in some embodiments, for each reflector module, a corresponding LED light source can be configured on the connector and within the internal reflector space. However, in other embodiments, for each reflector module, a corresponding LED light source can be configured on the connector and outside the internal reflector space. Therefore, in such embodiments, the LED light source can be configured to "inject" light into the reflector. Therefore, in some embodiments, the reflector can be configured downstream of the light generating device. The terms "downstream" and "upstream" refer to the arrangement of objects or features relative to the propagation of light from a light-generating component (here, in particular, a light source), wherein a second position in the beam closer to the light-generating component is "upstream" relative to a first position within the beam from the light-generating component, and a third position further away from the light-generating component within the beam is "downstream." Note that in embodiments, combinations are also possible; that is, for one reflector module, the LED light source may be configured within the internal reflector space, while for another reflector module, the LED light source may be configured outside the internal reflector space. Alternatively or additionally, in embodiments, the light-generating device may include more than one LED light source, such that for each reflector module, a corresponding LED light source may be configured on its respective internal light-emitting window. Thus, in a specific embodiment, for the first reflector module, the LED light source may be configured on the first internal light-emitting window, and for the second reflector module, the LED light source may be configured on the second internal light-emitting window. Furthermore, in embodiments, the LED light source may be configured to move with the reflector module. In such an embodiment, the LED light source can also be moved when the first reflector module and the second reflector module move (e.g., rotate) from one of the first reflector configurations and the second reflector configuration to the other. Therefore, in such an embodiment, the reflector modules can remain in the same orientation and spatial spacing relative to the LED light source.However, in alternative embodiments, the LED light source may remain static when the first reflector module and the second reflector module move (e.g., rotate) from one of the first reflector configurations and the second reflector configuration to the other. Therefore, in such embodiments, the reflector modules can rotate relative to the LED light source, such that their orientation and / or spatial spacing relative to the LED light source can change. Thus, in one embodiment, one or more LED light sources may be mechanically coupled to their respective reflector modules, and in other embodiments, one or more LED light sources may be mechanically coupled to a connector.

[0013] Therefore, a reflector can be configured to be in a light-receiving relationship with a light-generating device. The phrase “light received by…” and similar phrases such as “device light received by a reflector” may specifically indicate that some kind of action may occur when the light is actually received by an object. In embodiments, the action may be one or more of conversion, reflection, and transmission. Furthermore, the action may also include refraction. Here, in embodiments, the reflector may be reflective for device light. Therefore, in embodiments, the reflector can be configured to reflect at least a portion of the device light received by the reflector. In particular, in embodiments, the reflector can be configured to reflect at least 60%, such as at least 70%, such as at least 80%, particularly at least 90%, and more particularly at least 95%, of the device light received by the reflector. In some embodiments, the reflector can be configured to reflect at least 98%, such as at least 99% or even 100%, of the device light received by the reflector. Therefore, in embodiments, the reflector may include a light-reflective material. The term “light-reflective material” herein may specifically refer to a white or metallic reflective material, i.e., a material with relatively high light reflectivity. In an embodiment, the reflector may be specularly reflective; for example, the reflector may include a mirror (such as a metal mirror (such as a metal coating)).

[0014] Furthermore, in embodiments, the reflector may include a first reflector module and a second reflector module. In some embodiments, the first reflector module and the second reflector module may constitute the entire reflector; that is, the reflector may essentially consist of the first reflector module and the second reflector module. In such embodiments, the first reflector module and the second reflector module may be essentially identical and thus may each constitute half of the reflector. Therefore, in some embodiments, the term "first reflector module" may also refer to "first reflector half," and similarly, the term "second reflector module" may also be referred to as "second reflector half." Alternatively, in embodiments, the first reflector module and the second reflector module may be different; for example, one of the first reflector module and the second reflector module may be larger than the other (i.e., constituting more than half of the reflector). However, in yet another alternative embodiment, the reflector may include additional modules; for example, the reflector may include a first reflector module, a second reflector module, and a third reflector module (and optionally even a fourth reflector module, etc.).

[0015] In embodiments, the first reflector module can be substantially any shape. Specifically, in embodiments, the first reflector module can be substantially one of a shape selected from the group consisting of: a semi-cylinder, a hemisphere, a semi-cone, a prism, a parallelepiped, a pyramid, a wedge, and an ellipsoid. The term “approximate” and its conjugates, such as in “approximate shape,” can refer to something almost identical, particularly identical, to, for example, almost identical to a conical or semi-cylindrical shape. For example, the reflector module can be defined as a semi-cylindrical shape, except for defects. Specifically, an object approximating the first shape can refer herein to: a first shape realization that surrounds the object, wherein the first shape realization is defined as the minimum surrounding shape of the object (corresponding to 2D or 3D respectively), wherein the first shape realization has the shape of the first shape, and wherein the ratio of the area (volume) of the first shape realization to the area (volume) of the object can be <1.2, particularly <1.1, such as <1.05, particularly <1.02. For example, the reflector module can be approximately semi-cylindrical in shape, wherein a first shape realization can be defined as the smallest enclosing semi-cylindrical shape of the reflector module, wherein the ratio of the volume of the first shape realization to the volume of the reflector module is <1.2, particularly <1.1, such as <1.05, particularly <1.02, including a ratio of 1. Furthermore, if the dimensions of the first shape are defined, the term "approximately" can refer to the object and the first shape (in 2D or 3D respectively) being superimposed such that the intersection between the object and the first shape covers at least n% of the object and at least n% of the shape, where n is at least 90%, such as at least 95%, particularly at least 98%, such as at least 99%, including 100%. Specifically, in embodiments, the first reflector module may include a first end, a first reflector wall, a first internal light exit window, and a first external light exit window. These components may together define the shape of the first reflector module. Furthermore, in embodiments, the first reflector module may include a hollow body; for example, the first reflector wall may include a reflective material or reflective film configured to provide reflection of device light. Alternatively, in embodiments, the first reflector module may include a substantially solid body, particularly a solid light-transmitting body. For example, in an embodiment, the first reflector module may include a total internal reflection lens. In embodiments, the solid body may include one or more materials selected from the group consisting of glass, polymer materials, metallic materials, and ceramic materials. For example, in an embodiment, the solid body may include a ceramic body. In another example, the solid body may include a glass body or a polymer body.

[0016] In embodiments, similar to the first reflector module, the second reflector module can be substantially any shape. Specifically, in embodiments, the first reflector module can approximate one of the shapes selected from the group consisting of: a semi-cylinder, hemisphere, semi-cone, prism, parallelepiped, pyramid, wedge, and ellipsoid. In embodiments, the first and second reflector modules can have substantially the same shape. However, in alternative embodiments, the first and second reflector modules can have different shapes. In embodiments, the second reflector module may further include a second end, a second reflector wall, a second internal light exit window, and a second external light exit window. These components can together define the shape of the first reflector module. Furthermore, in embodiments, the second reflector module may include a hollow body; for example, the second reflector wall may include a reflective material or reflective film configured to provide reflection of light from the device. Therefore, in some embodiments, both the first and second reflector modules may include a hollow body. In such embodiments, the reflector can be substantially a hollow reflector. Alternatively, in embodiments, the second reflector module may include a substantially solid body, particularly a solid light-transmitting body. For example, in one embodiment, the second reflector module may include a fully internally reflecting lens. In a specific embodiment, each reflector module may include a solid light-transmitting body. In such embodiments, the reflector may be substantially solid, such as, for example, a fully internally reflecting lens. However, in an alternative embodiment, one of the first and second reflector modules may include a hollow body, while the other of the first and second reflector modules may include a solid light-transmitting body.

[0017] In embodiments, the aforementioned light exit window can be configured to transmit device light emitted from the light generating device. In embodiments, the illumination arrangement can be configured to generate arrangement light. In embodiments, the arrangement light may include at least a portion of the device light. In certain embodiments, the arrangement light may substantially include all device light. In some embodiments, the arrangement light may consist substantially of device light. However, it is not excluded herein that the arrangement light may include other types of light, such as (e.g., light propagating from the exterior of the illumination unit to the reflector wall and then reflected again from the illumination unit). In some embodiments, the arrangement light may be transmitted (only) through one or more of the first external light exit window and the second external light exit window. In other embodiments, the arrangement light may be transmitted through any one or more of the internal light exit window and the external light exit window.

[0018] In embodiments, the illumination arrangement can be specifically configured to provide a beam of arrangement light. In embodiments, when illuminating a surface perpendicular to the optical axis (O), the beam of arrangement light can provide a spot of arrangement light of substantially any shape (such as, for example, circular, elliptical, etc.). The spot of arrangement light can particularly have an aspect ratio, i.e., the ratio between the (maximum) width and (maximum) height of the spot of arrangement light. In embodiments, in a first reflector configuration, the spot of arrangement light can have a first aspect ratio. Furthermore, in embodiments, in a second reflector configuration, the spot of arrangement light can have a second aspect ratio (in at least one direction) greater than the first aspect ratio. For example, in embodiments, in a first reflector configuration, the spot of arrangement light can have a first aspect ratio of 1:1 (e.g., the spot can have a circular shape), while in a second reflector configuration, the spot of arrangement light can have a second aspect ratio of 3:2 (e.g., the spot can have an elliptical shape).

[0019] In embodiments, the first internal light-emitting window, the second internal light-emitting window, the first external light-emitting window, and the second external light-emitting window can simply refer to openings in the corresponding reflector modules. Alternatively, in embodiments, one or more of the first internal light-emitting window, the second internal light-emitting window, the first external light-emitting window, and the second external light-emitting window may include material windows, such as (e.g., glass windows). In particular, in embodiments, one or more of the first internal light-emitting window, the second internal light-emitting window, the first external light-emitting window, and the second external light-emitting window may include light-transmitting materials. Furthermore, in embodiments, the first internal light-emitting window, the second internal light-emitting window, the first external light-emitting window, and the second external light-emitting window may include optical elements. In particular, in embodiments, the optical elements may be individually selected from the group consisting of: light-transmitting structures, semi-light-transmitting structures, light-reflective structures, light-scattering structures, and light-refracting structures. For example, in embodiments, one or more of the first internal light-emitting window, the second internal light-emitting window, the first external light-emitting window, and the second external light-emitting window may include glass or polymer plates. Specifically, in embodiments, optical elements (such as glass or polymer plates) may be patterned in an embossed design. In particular, one or more of the first and second internal light exit windows may include optical elements. In embodiments, the optical elements may be configured to redirect device light escaping from the reflector (along the optical axis (O)). Additionally or alternatively, in embodiments, the optical elements may be configured to beam-shape the device light escaping from the reflector. Thus, in certain embodiments, one or more of the first and second internal light exit windows may include optical elements, wherein the optical elements may include one or more of refractive and reflective structures, wherein the optical elements may be configured to redirect and / or beam-shape the device light (along the optical axis (O)). Such embodiments may be particularly advantageous because the optical elements provide further adjustability to the beam of device light escaping from the illumination arrangement. In particular, the optical elements may enable the increase or decrease of the size of the beam of device light escaping from the illumination arrangement. Furthermore, the optical elements may help reduce glare from the beam of device light escaping from the illumination arrangement. Throughout this document, the term "optical element" may also refer to multiple optical elements.

[0020] Furthermore, in embodiments, the connector can be configured to physically connect the first reflector module and the second reflector module (directly and / or indirectly). Specifically, in embodiments, the connector can be configured to physically connect the first reflector module and the second reflector module by physically connecting a first end (of the first reflector module) and a second end (of the second reflector module). In embodiments, the first end (of the first reflector module) and the second end (of the second reflector module) can be glued together; that is, the connector can include adhesive. Additionally or alternatively, the first end (of the first reflector module) and the second end (of the second reflector module) can be physically connected by one or more of screws, nuts and bolts, clamps, complementary male connector components and female connector components, etc. Therefore, in embodiments, the connector can, for example, include one or more of screws, nuts and bolts, clamps, male connector components and female connector components, etc. In embodiments, the connector can particularly be configured to support both the first reflector module and the second reflector module. Therefore, in embodiments, the connector can be configured to support the reflector.

[0021] In embodiments, the first reflector module and the second reflector module may be configured in different (spatial) reflector configurations. Such different (spatial) reflector configurations can, in particular, result in different beams of light emanating from the illumination unit, as described below. Specifically, in embodiments, the illumination unit may include a first reflector configuration (of the reflector modules) and a second reflector configuration (of the reflector modules). The different reflector configurations are described in further detail below.

[0022] As described above, each reflector module may include a reflector wall. In an embodiment, each reflector wall may include two wall ends. Thus, a first reflector wall may include two first wall ends, and a second reflector wall may include two second wall ends. Specifically, in an embodiment, the first wall ends may be configured at the extreme ends of the first reflector wall, wherein the first reflector wall may contact both the first internal light emission window and the first external light emission window. Similarly, in an embodiment, the second wall ends may be configured at the extreme ends of the second reflector wall, wherein the second reflector wall may contact both the second internal light emission window and the second external light emission window. Conversely, in an embodiment, a first end may be defined at the extreme ends of the first reflector wall, wherein the first reflector wall may contact the first internal light emission window but not the first external light emission window. Similarly, in an embodiment, a second end may be defined at the extreme ends of the second reflector wall, wherein the second reflector wall may contact the second internal light emission window but not the second external light emission window. Therefore, in an embodiment, the first end can be spatially separated from the first wall end via the first reflector wall, and similarly, the second end can be spatially separated from the second wall end via the second reflector wall. Furthermore, in an embodiment, the first reflector wall and the first end can partially overlap; for example, the first end can be substantially part of the first reflector wall. Similarly, in an embodiment, the second reflector wall and the second end can partially overlap; for example, the second end can be substantially part of the second reflector wall.

[0023] In an embodiment, a first plane (P1) may be defined by a first end and two first wall ends. Similarly, in an embodiment, a second plane (P2) may be defined by a second end and two second wall ends. The first plane (P1) and the second plane (P2) may have an included angle (β). In an embodiment, the included angle (β) may be substantially any angle, for example, up to 360°. In particular, in an embodiment, the included angle (β) may be selected from the range of 0-180°, such as the range of 0-120°, or the range of 0-90°. Furthermore, in an embodiment, the included angle (β) may be selected from the range of 10°-90°, such as the range of 15°-75°, or the range of 30°-60°. In an embodiment, the maximum included angle (β) max ) and minimum included angle (β) min The difference between ) can be selected from the range of 10°-180°, such as from the range of 10°-90°, such as from the range of 15°-90°, especially from the range of 30°-75°.

[0024] In a first reflector configuration (of the reflector modules), in an embodiment, the first reflector module and the second reflector module can be configured such that the first plane (P1) and the second plane (P2) can have a first included angle (β1). Specifically, in an embodiment, the first included angle (β1) can be selected from the range of 0-30°, such as the range from 0-15°, or the range from 1.5-7.5°. In a specific embodiment, the first included angle (β1) can be substantially zero (0°). Therefore, in an embodiment, in the first reflector configuration, the first plane (P1) and the second plane (P2) can be arranged in parallel. Specifically, in such an embodiment, arrangement light can be transmitted (only) through one or more of the first external light exit window and the second external light exit window. Such an embodiment can be advantageous because such a configuration allows a relatively small beam of light to escape from the illumination unit. Therefore, such an embodiment can be advantageous for highlighting specific light spots, such as, for example, highlighting products in a store.

[0025] In the second reflector configuration (of the reflector modules), in an embodiment, the first and second reflector modules can be configured such that the first plane (P1) and the second plane (P2) can have a second included angle (β2). Specifically, in an embodiment, the second included angle (β2) can be selected from the range of 10-360°, such as the range from 10-180°, or the range from 30-120°. Specifically, in an embodiment, the second included angle (β2) can be selected from the range of 15-90°, such as the range from 15°-75°, or the range from 30°-60°, especially the range from 30°-45°. In a specific embodiment, the second included angle (β2) may not be zero (0°). Therefore, in an embodiment, the device light emitted by the light generating device can exit via an external exit window and / or an internal exit window. Specifically, in the second reflector configuration, at least a portion of the arranged light can be transmitted through a first internal light exit window. Additionally or alternatively, in the second reflector configuration, at least a portion of the arranged light can be transmitted through the second internal light exit window. Therefore, in a specific embodiment, in the second reflector configuration, the first plane (P1) and the second plane (P2) may not be arranged parallel, and at least a portion of the arranged light can be transmitted through the first and second internal light exit windows. Such an embodiment can be advantageous because such a configuration allows a larger beam of light to escape from the illumination unit. Therefore, such an embodiment can be beneficial for illuminating a larger area. Furthermore, such an embodiment can provide a beam of light with a different shape relative to the first reflector configuration, thereby making it possible to adjust the shape of the beam of arranged light exiting the illumination arrangement.

[0026] Therefore, in embodiments, the connector can be configured to connect a first reflector module and a second reflector module, such that the reflector modules can be configured in either a first reflector configuration or a second reflector configuration. Therefore, in embodiments, the connector may include a hinge. In embodiments, the hinge is hingedly connected to the first reflector module and the second reflector module. Such embodiments can be advantageous because the hinge allows for adjustability of the first and second reflector modules relative to each other, thereby allowing for different (spatial) reflector configurations. Therefore, in a specific embodiment, the connector may include a hinge wherein the hinge is hingedly connected to the first reflector module and the second reflector module.

[0027] Specifically, reflector modules can be configured to be hinged in their different positions (or configurations). That is, reflector modules can be hingedly associated with other elements, such as, for example, each other, connectors, or lighting tracks (see below). Specifically, reflector modules can rotate and / or tilt relative to each other (or other corresponding elements). Reflector modules can be hingedly associated via various types of hinges, such as butt hinges, pivot hinges, continuous hinges, piano hinges, concealed hinges, European hinges, etc. Therefore, in embodiments, connectors may include one or more of butt hinges, pivot hinges, continuous hinges, piano hinges, concealed hinges, European hinges, etc.

[0028] The side view cross section (P) of the lighting arrangement may be defined perpendicular to the first plane (P1) and the second plane (P2). Furthermore, the lighting arrangement may have a main axis (A) defined parallel to the side view cross section (P) and intersecting the connector. In some embodiments, the main axis (A) may coincide with the optical axis (O) as defined above. Specifically, in an embodiment, in a first reflector configuration of the lighting arrangement, the main axis (A) and the optical axis (O) may coincide. However, in an alternative embodiment, the optical axis (O) may not coincide with the main axis (A) (e.g., have an angle relative to it). As described above, the first plane (P1) and the second plane (P2) may have an included angle (β). Furthermore, in an embodiment, the first plane (P1) may have a first angle (α1) relative to the main axis (A). In an embodiment, the first angle (α1) may be selected from the range of 0-180°. Specifically, in an embodiment, the first angle (α1) can be selected from a range of ≤90°, such as from a range of ≤60°, such as from a range of ≤45°, and especially from a range of ≤30°. Similarly, in an embodiment, the second plane (P2) can have a second angle (α2) relative to the principal axis (A). In an embodiment, the second angle (α2) can be selected from a range of 0-180°. Specifically, in an embodiment, the second angle (α2) can be selected from a range of ≤90°, such as from a range of ≤60°, such as from a range of ≤45°, and especially from a range of ≤30°.

[0029] In the first reflector configuration, in an embodiment, both the first plane (P1) and the second plane (P2) can be configured substantially parallel to the principal axis (A). Specifically, in such an embodiment, both the first angle (α1) and the second angle (α2) can (individually) be selected from a range of up to 5°, such as up to 2°. In a specific embodiment, both the first angle (α1) and the second angle (α2) can be substantially 0°. Conversely, in the second reflector configuration, in an embodiment, at least one of the first plane (P1) and the second plane (P2) may not be configured parallel to the principal axis (A). Specifically, in such an embodiment, at least one of the first angle (α1) and the second angle (α2) can (individually) be selected from a range of at least 5°, such as at least 10°. In some embodiments, the first angle (α1) and the second angle (α2) can be substantially the same angle, such as, for example, α1 = α2 = 15°. In alternative embodiments, the first angle (α1) and the second angle (α2) may be different, such as, for example, α1 = 0° and α2 = 20°, or such as, for example, α1 = 15° and α2 = 10°.

[0030] As described above, in embodiments, the reflector modules can have various shapes. In some embodiments, the first reflector module and the second reflector module can have substantially the same shape. Therefore, in some embodiments, the first reflector wall and the second reflector wall can have substantially the same shape. In embodiments, the first reflector module can have an approximately semi-conical shape. A first cross-section can be defined perpendicular to a first plane (P1) such that the first reflector wall (as seen in the first cross-section) can have a (approximately) semi-parabolic shape (or "half of a parabolic shape"). Additionally or alternatively, in embodiments, the second reflector module can have an approximately semi-conical shape. A second cross-section can be defined perpendicular to a second plane (P2) such that the second reflector wall (as seen in the second cross-section) can have a (approximately) semi-parabolic shape (or "half of a parabolic shape"). Therefore, in embodiments, one or more of the following can be applied: (a) in a first cross-section defined perpendicular to a first plane (P1), the first reflector wall can have a (approximately parabolic) shape, and (b) in a second cross-section defined perpendicular to a second plane (P2), the second reflector wall can have a (approximately parabolic) shape. Specifically, in embodiments, the first reflector wall (as seen in the first cross-section) and the second reflector wall (as seen in the second cross-section) can have the same semi-parabolic shape. Therefore, in embodiments, the first reflector wall and the second reflector wall can be mirror images of each other. Thus, in at least one (spatial) reflector configuration (especially in a first reflector configuration where β1 = 0°), the reflector can have a shape approximating a smooth cone. Such embodiments can be advantageous because the smooth shape reduces the volume around the connector, thereby improving the hinge capability of the reflector module relative to each other (and / or other elements).

[0031] In embodiments, the reflector may include multiple reflector modules, such as three or more, particularly four or more. In embodiments, the multiple reflector modules may have different shapes. However, in some embodiments, the multiple reflector modules may each have substantially the same shape. For example, in embodiments, the multiple reflector modules may each have a semi-parabolic (or half-parabolic) shape (as seen in their respective cross-sectional planes). In particular, in embodiments, each of the reflector modules may include a parabolic mirror. In such embodiments, the reflector may substantially include at least one of a (spatial) reflector configuration (particularly a first reflector configuration) and a compound parabolic condenser. In particular, in embodiments, when the reflector modules are configured to have at least one configuration having at least one of the possible values ​​of the included angle β defined above, the reflector may include a compound parabolic condenser. In embodiments where the reflector includes four reflector modules having a semi-parabolic (or half-parabolic) shape, the reflector may substantially include a square (or intersecting) compound parabolic condenser. Additionally or alternatively, in embodiments where the reflector comprises multiple reflector modules, the reflector modules have a semi-parabolic (or half-parabolic) shape, and the reflector may substantially comprise a multi-faceted compound parabolic concentrator. In such embodiments, the reflector may comprise n reflector modules (particularly having a semi-parabolic (or half-parabolic) shape, i.e., n faces), where n may be selected from a range of ≥2, such as from a range of ≥4, such as from a range of ≥6. Thus, in embodiments, the reflector may comprise a (cross / square shape) compound parabolic concentrator (in at least one of the (spatial) reflector configurations).

[0032] Furthermore, in at least one of the (spatial) reflector configurations, one of the first reflector module and the second reflector module may be configured to accommodate at least a portion of the other. In this document, the phrase "configured to accommodate" and similar phrases may refer to an element configured to accommodate a second element, such that the first element may substantially include or accommodate at least a portion of the second element. In a particular embodiment, at least one of the first reflector module and the second reflector module may be configured to accommodate at least a portion of the other when the reflector module is configured to have at least one of at least one of the possible values ​​of the included angle β defined above. Furthermore, in embodiments, at least one of the first reflector module and the second reflector module may be configured to accommodate at least a portion of the other, such that their respective reflector walls may overlap in at least one direction perpendicular to the principal axis. In particular, in such embodiments, the amount of overlap between the first reflector wall and the second reflector wall may correspond to the minimum included angle (β). minIn a reflector configuration, the overlap between the first and second reflector walls can be maximized, corresponding to the maximum included angle (β). Conversely, in such an embodiment, the amount of overlap between the first and second reflector walls can be maximized, corresponding to the maximum included angle (β). maxThe minimum reflector configuration is defined in the first reflector configuration. In an embodiment, one or more virtual vectors (V) can be defined as parallel to at least one of the first plane (P1) and the second plane (P2), and extending from a plane perpendicular to (both) the first plane (P1) and the second plane (P2). Therefore, in at least one of the (spatial) reflector configurations (especially the first reflector configuration), in an embodiment, one of the first reflector module and the second reflector module can be configured to accommodate at least a portion of the other of the first reflector module and the second reflector module, such that one or more of the virtual vectors (V) can intersect both the first reflector wall and the second reflector wall. In some embodiments, the reflector module can be configured such that the virtual vectors (V) extending from the plane perpendicular to (both) the first plane (P1) and the second plane (P2) can first intersect the first reflector wall and then intersect the second reflector wall, and vice versa. In other embodiments, the reflector module may be configured such that more than one or even each virtual vector (V) extending from a plane perpendicular to both the first plane (P1) and the second plane (P2) may (each) first intersect the first reflector wall and then intersect the second reflector wall. Thus, in such an embodiment, the second reflector module may accommodate at least a portion of the first reflector module. Alternatively, in an embodiment, the reflector module may be configured such that more than one or even each virtual vector (V) extending from a plane perpendicular to both the first plane (P1) and the second plane (P2) may (each) first intersect the second reflector wall and then intersect the first reflector wall. Thus, in such an embodiment, the first reflector module may accommodate at least a portion of the second reflector module. In yet another embodiment, the reflector module may be configured such that (i) a first virtual vector (Vi) extending from a plane perpendicular to both the first plane (P1) and the second plane (P2) may first intersect the first reflector wall and then the second reflector wall, and (ii) a second virtual vector (Vii) extending from a plane perpendicular to both the first plane (P1) and the second plane (P2) (in a direction perpendicular to the first virtual vector (Vi)) may first intersect the second reflector wall and then the first reflector wall. Thus, in such an embodiment, both the first and second reflector modules can accommodate at least a portion of a corresponding other reflector module. Therefore, in an embodiment, in at least one of the (spatial) reflector configurations, one of the first reflector module and the second reflector module may be configured to accommodate at least a portion of the other of the first reflector module and the second reflector module, such that one or more virtual vectors (V) parallel to at least one of the first plane (P1) and the second plane (P2) and extending from a plane perpendicular to the first plane (P1) and the second plane (P2) may intersect both the first reflector wall and the second reflector wall.Such an embodiment can be advantageous if the reflector modules can partially accommodate each other, as the overall lighting unit can become more compact. Furthermore, if, in the first (spatial) reflector configuration, one reflector module accommodates another as described above, the reflector wall of one reflector module can therefore extend (slightly) beyond the corresponding first or second plane (P1, P2). If the first and second reflector walls are substantially aligned, gaps or openings will appear when the reflector is adjusted from the first (spatial) reflector configuration to the second (spatial) reflector configuration. Such gaps or openings will allow light to pass through in potentially undesirable directions. Therefore, such an embodiment where one reflector wall can extend can be advantageous because the extension can provide a (reflective) cover for any gaps or openings that may appear when the reflector is adjusted to the second (spatial) reflector configuration, thereby preventing light loss.

[0033] In the second reflector configuration of the lighting arrangement, in embodiments, a gap or opening may therefore exist between the first reflector module and the second reflector module. In embodiments, the gap or opening may be defined by a distance in a side-view cross-section of the lighting arrangement. Specifically, in embodiments, in a side-view cross-section of the lighting arrangement (as defined above), a first minimum distance (d1) may be defined between one of the first wall ends (of the first reflector wall) and one of the second wall ends (of the second reflector wall). In embodiments, in the first reflector configuration of the lighting arrangement, the first minimum distance (d1) may be at most 8 cm, such as at most 5 cm, such as at most 2 cm, particularly at most 1 cm. Specifically, in embodiments, in the first reflector configuration of the lighting arrangement, the first minimum distance (d1) may be substantially zero (i.e., the first reflector module and the second reflector module may be configured in a closed configuration). However, in embodiments where, for example, the first reflector wall and the second reflector wall can overlap (see also above), the first shortest distance (d1) can be selected from a range of 1-8 cm, such as a range of 1-5 cm, especially a range of ≤4 cm. In embodiments, in the second reflector configuration of the lighting arrangement, the first shortest distance (d1) can be selected from a range of 2-40 cm, such as a range of 3-25 cm, such as a range of 5-20 cm, especially a range of 5-15 cm. In particular, in embodiments, in the second reflector configuration of the lighting arrangement, the first shortest distance (d1) may not be zero (i.e., the first reflector module and the second reflector module may be configured in an open configuration). Therefore, in embodiments, in the side view cross-section of the lighting arrangement in the second reflector configuration (defined as perpendicular to the first plane (P1) and the second plane (P2)), the first shortest distance (d1) can be defined between one of the first wall ends and one of the second wall ends, and wherein in the second reflector configuration, the first shortest distance (d1) can be selected from a range of 5-20 cm.

[0034] Therefore, a first shortest distance (d1) can be defined for the reflector. In embodiments, the reflector may also have a height (h) defined parallel to the main axis (A). In embodiments, the height (h) may be particularly selected from the range of ≥5cm, such as from the range of ≥10cm, such as from the range of ≥15cm. Furthermore, in embodiments, the height (h) may be selected from the range of ≤100cm, such as the range of ≤75cm, such as the range of ≤50cm, particularly the range of ≤30cm. Furthermore, in embodiments, the reflector may have a maximum width (d2) perpendicular to the height (h). In embodiments, the maximum width (d2) may be selected from the range of ≥2cm, such as from the range of ≥5cm, such as from the range of ≥7cm. Furthermore, in embodiments, the maximum width (d2) may be selected from the range of d1≤d2≤100cm, such as from the range of d1≤d2≤75cm, such as the range of 1.2*d1≤d2≤50cm. Therefore, in some (especially most) embodiments, the maximum width (d2) may be greater than the shortest distance (d1).

[0035] Therefore, reflectors can be configured in different reflector configurations, and thus reflector modules can be configured to move relative to each other. It may be desirable to (temporarily) lock one or more reflector modules so that the lighting arrangement can operate in one of the first and second reflector configurations for a period of time. Therefore, in embodiments, the lighting unit may include a locking element. In embodiments, the locking element may be configured to lock at least one of the (spatial) reflector configurations of the reflector modules. Throughout this document, the term "lock" or "locking" or similar terms may refer to fastening or securing a locked object, thereby restricting movement. In embodiments, the locking element may be applied to temporarily lock an object into place, or even permanently lock an object into place. In embodiments, the locking element may be configured to (temporarily) lock one or more reflector modules relative to each other. Additionally or alternatively, in embodiments, the locking element may be configured relative to one or more connector reflector modules. Therefore, in embodiments, the locking element may include one or more of the group comprising screws, nuts and bolts, clamps, pins, and complementary male and female locking portions. Therefore, in an embodiment, the lighting unit may include a locking element configured to (temporarily) lock at least one of the (spatial) reflector configurations of the reflector module.

[0036] As described above, the lighting arrangement includes a light generating device. The light generating device can be particularly configured to generate device light. Specifically, the light generating device may include a light source. The light source can be particularly configured to generate light source light. In embodiments, the device light may consist substantially of device light. In other embodiments, the device light may consist substantially of converted light source light. In still other embodiments, the device light may include (unconverted) light source light and converted light source light. The light source light can be converted into light source material light using a luminescent material and / or converted into upconverted light using an upconverter.

[0037] The term "light source" can, in principle, refer to any light source known in the art. It can be a conventional (tungsten) bulb, a low-pressure mercury lamp, a high-pressure mercury lamp, a fluorescent lamp, or an LED (light-emitting diode). In specific embodiments, the light source includes solid-state LED light sources (such as LEDs or laser diodes (or "diode lasers")). The term "light source" can also refer to multiple light sources, such as a 2-2000 (solid-state) LED light source. Therefore, the term LED can also refer to multiple LEDs. Furthermore, in embodiments, the term "light source" can also refer to a so-called chip-on-board (COB) light source. The term "COB" specifically refers to LED chips in the form of semiconductor chips that are neither packaged nor connected, but are directly mounted onto a substrate such as a PCB. Therefore, multiple light-emitting semiconductor light sources can be configured on the same substrate. In embodiments, a COB is a multi-LED chip configured together as a single lighting module. The term "light source" can also refer to a chip-scale package (CSP). A CSP can include a single solid-state die having a layer comprising a light-emitting material disposed thereon. The term "light source" can also refer to a medium-power package. A medium-power package can include one or more solid-state dies. The dies (multiple) can be covered by a layer comprising a light-emitting material. The die size can be equal to or less than 2 mm, such as in the range of 0.2-2 mm. Therefore, in embodiments, the light source includes a solid-state light source. Further, in specific embodiments, the light source includes a chip-scale packaged LED. In this document, the term "light source" can also specifically refer to small solid-state light sources, such as those having a miniature or micro-size. For example, a light source can include one or more of mini LEDs and micro LEDs. Specifically, in embodiments, the light source includes micro LEDs or "micro-LEDs" or "µLEDs". In this document, the term miniature size or mini LED specifically refers to a solid-state light source having dimensions (such as die size, especially length and width) selected from the range of 100 μm to 1 mm. In this document, the term μ-size or micro LED specifically refers to a solid-state light source having dimensions (such as die size, especially length and width) selected from the range of 100 μm and smaller.

[0038] A light source can have a light-escape surface. Referring to conventional light sources such as light bulbs or fluorescent lamps, this can be the outer surface of a glass or quartz housing. For LEDs, it can be, for example, the LED die, or, when resin is applied to the LED die, the outer surface of the resin. In principle, it can also be the end of an optical fiber. The term "escape surface" specifically refers to this part of the light source, where light actually leaves or escapes from the light source. The light source is configured to provide a light beam. The light beam (therefore) escapes from the light-escape surface of the light source. Similarly, light-generating devices can include a light-escape surface, such as an end window.

[0039] The term "light source" can refer to semiconductor light-emitting devices, such as light-emitting diodes (LEDs), resonant cavity light-emitting diodes (RCLEDs), vertical cavity laser diodes (VCSELs), edge-emitting lasers, etc. The term "light source" can also refer to organic light-emitting diodes (OLEDs), such as passive matrix (PMOLEDs) or active matrix (AMOLEDs). In specific embodiments, the light source includes solid-state light sources (such as LEDs or laser diodes). In embodiments, the light source includes LEDs (light-emitting diodes). The term "light source" or "solid-state light source" can also refer to superluminescent diodes (SLEDs). In embodiments, the light source can include one or more micro-optical elements (microlens arrays) downstream of a single solid-state light source (such as an LED) or downstream of multiple solid-state light sources (i.e., shared by multiple LEDs). In embodiments, the light source can include LEDs with on-chip optics. In embodiments, the light source includes pixelated individual LEDs (with or without optics) (providing on-chip beam steering in embodiments).

[0040] In embodiments, the light source can be configured to provide primary radiation, such as, for example, a blue light source, like a blue LED, or a green light source, such as a green LED, and a red light source, such as a red LED. Such an LED, which may not include a luminescent material (“phosphor”), can be indicated as a direct-color LED. However, in other embodiments, the light source can be configured to provide primary radiation, and a portion of the primary radiation is converted into secondary radiation. The secondary radiation can be based on the conversion of the luminescent material. The secondary radiation can therefore also be indicated as luminescent material radiation. In embodiments, the luminescent material can be included by the light source, such as an LED having a layer of luminescent material or a dome including luminescent material. Such an LED can be indicated as a phosphor-converted LED or a PC LED (phosphor-converted LED). In other embodiments, the luminescent material can be positioned at a distance (“remote”) from the light source, such as an LED having a layer of luminescent material that is not in physical contact with the LED die. Thus, in certain embodiments, the light source can be a light source that emits light of a wavelength selected in the range of 380-470 nm during operation. However, other wavelengths are also possible. The luminescent material may use this light in part.

[0041] In some embodiments, the light generating device may include a light-emitting material. In some embodiments, the light generating device may include a PCLED. In other embodiments, the light generating device may include a direct LED (i.e., a phosphorless LED). In some embodiments, the light generating device may include a laser device, such as a laser diode. In some embodiments, the light generating device may include a superluminescent diode. Therefore, in specific embodiments, the light source may be selected from the group consisting of laser diodes and superluminescent diodes. In other embodiments, the light source may include an LED.

[0042] The light source can be configured, in particular, to generate light with an optical axis (O), (beam shape), and spectral power distribution. In embodiments, the light source can include one or more bands, for example, having a bandwidth known to lasers.

[0043] The term "light source" can (therefore) refer to a light-generating element, such as a solid-state light source, or, for example, to a package of a light-generating element, such as a solid-state light source, and one or more light-emitting materials comprising the element and (other) optical devices, such as lenses and collimators. A light-converting element ("converter element" or "converter") can include a light-emitting material comprising the element. For example, a solid-state light source, such as a blue LED, is a light source. A combination of a solid-state light source (as a light-generating element) and a light-converting element (such as a blue LED and a light-converting element light-coupled to the solid-state light source) can also be a light source (but can also be indicated as a light-generating device). Thus, a white LED is a light source (but can also, for example, be indicated as a (white) light-generating device).

[0044] The term "light source" as used herein can also refer to a light source including solid-state light sources (such as LEDs, laser diodes, or superluminescent diodes). In embodiments, the term "light source" can also (and therefore) refer to a light source based on light conversion, such as a light source combined with a light-emitting converter material. Thus, the term "light source" can also refer to a combination of an LED and a light-emitting material configured to convert at least a portion of the LED radiation, or to a combination of a (diode) laser and a light-emitting material configured to convert at least a portion of the (diode) laser radiation. In embodiments, the term "light source" can also refer to a combination of a light source (such as an LED) and an optical filter that can alter the spectral power distribution of the light generated by the light source. In particular, the term "light generating device" can be used to address a light source and additional (optical components), such as optical filters and / or beam shaping elements.

[0045] The phrases “different light sources” or “multiple different light sources” and similar phrases may refer to multiple solid-state light sources selected from at least two different enclosures in the embodiments. Similarly, the phrases “identical light sources” or “multiple identical light sources” and similar phrases may refer to multiple solid-state light sources selected from the same enclosure in the embodiments.

[0046] The terms “solid-state light source” or “solid-state material light source” and similar terms may specifically refer to semiconductor light sources, such as light-emitting diodes (LEDs), diode lasers, or superluminescent diodes.

[0047] The term "laser source" specifically refers to a laser. Such a laser can be configured, in particular, to generate laser light having one or more wavelengths in the UV, visible, or infrared range, especially wavelengths selected from the spectral wavelength range of 200-2000 nm, such as 300-1500 nm. The term "laser" specifically refers to a device that emits light through an optical amplification process based on stimulated emission of electromagnetic radiation. In particular, in embodiments, the term "laser" may refer to a solid-state laser. In specific embodiments, the term "laser" or "laser source" or similar terms refer to a laser diode (or diode laser).

[0048] Lasers can be combined with up-converters to obtain shorter (laser) wavelengths. For example, upconversion can be achieved for certain (trivalent) rare-earth ions, and also for nonlinear crystals. Alternatively, lasers can be combined with down-converters (e.g., dye lasers) to achieve longer (laser) wavelengths. The term "solid-state material laser" and similar terms can refer to solid-state lasers based on ion-doped crystal or glass substrates, such as transition metal ions and / or lanthanides, fiber lasers, photonic crystal lasers, semiconductor lasers, such as, for example, vertical-cavity surface-emitting lasers (VCSELs).

[0049] The term "solid-state light source" and similar terms can specifically refer to semiconductor light sources, such as light-emitting diodes (LEDs), laser diodes, or superluminescent diodes. In addition to the term "solid-state light source," the term "semiconductor-based light source" can also be used. Therefore, the term "semiconductor-based light source" can, for example, refer to one or more of light-emitting diodes (LEDs), laser diodes, and superluminescent diodes. Thus, light generating devices can include one or more of light-emitting diodes (LEDs), laser diodes, and superluminescent diodes.

[0050] Light-emitting diodes (LEDs) are semiconductor light sources that emit light when an electric current flows through them. Electrons in a semiconductor can recombine with electron-hole pairs, releasing energy in the form of photons. The color of light (corresponding to the energy of the photons) can be determined by the energy required for an electron to cross the band gap of the semiconductor.

[0051] A laser diode (or diode laser) can be a semiconductor device substantially similar to a light-emitting diode, wherein a diode directly pumped by a current can generate laser conditions at the diode junction. This is known to those skilled in the art.

[0052] Superluminescent diodes (SLDs) are known in the art. A SLD can be described as a semiconductor device capable of emitting a broad spectrum of low-coherence light like an LED, while possessing brightness on the order of a laser diode. Furthermore, SLDs can be, in particular, semiconductor light sources where spontaneously emitted light is amplified by stimulated emission in the active region of the device. This emission is called “superluminescence.” SLDs combine the high power and brightness of laser diodes with the low coherence of conventional LEDs. The low (temporal) coherence of the source has the advantage of significantly reduced or invisible spots, and the emission has a much wider spectral distribution compared to laser diodes, making it better suited for lighting applications. In particular, the spectral power distribution of a SLD can be varied with changes in current. In this way, the spectral power distribution can be controlled; see also, for example, Abdullah A. Alatawi et al., Optics Express Vol. 26, Issue 20, pp. 26355-26364, https: / / doi.org / 10.1364 / OE.26.026355. Therefore, superluminescent diodes (SLEDs) can be characterized as semiconductor devices capable of emitting broad-spectrum, low-coherence light like LEDs, while possessing brightness on the order of a laser diode. SLEDs combine the high power and brightness of laser diodes with the low coherence of conventional LEDs. The low (temporal)coherence of the source has the advantage of significantly reduced or invisible spotting, and the emission spectral distribution is much wider than that of laser diodes, making it better suited for lighting applications. Therefore, in embodiments, solid-state light sources may include SLEDs. For example, in further specific embodiments, solid-state light sources may include GaN-based SLEDs, InGaN-based SLEDs, or AlGaN-based SLEDs.

[0053] Lighting arrangements can be, for example, part of, or applicable to office lighting systems, residential lighting systems, shop lighting systems, home lighting systems, accent lighting systems, spotlighting systems, theater lighting systems, fiber optic systems, projection systems, self-illuminating display systems, pixelated display systems, segmented display systems, warning sign systems, medical lighting systems, directional sign systems, decorative lighting systems, portable systems, automotive applications, (outdoor) road lighting systems, urban lighting systems, greenhouse lighting systems, horticultural lighting, digital projection, or LCD backlighting. Lighting arrangements (or luminaires) can also be, for example, part of, or applicable to optical communication systems or disinfection systems.

[0054] In embodiments, the arrangement light can be white light. In embodiments, white arrangement light can be provided, for example, using a light generating device comprising a blue LED and a (yellow) light-emitting converter, see above. Alternatively, in embodiments, multiple light generating devices (e.g., a blue light generating device and a yellow light generating device) can be used to provide white arrangement light. In embodiments, the arrangement light can be, in particular, white light having a color rendering index of at least 70 (such as at least 80). Additionally or alternatively, in embodiments, the arrangement light can be white light having a correlated color temperature selected from the range of 2700-8000K, such as the range from 3000-6500K.

[0055] The term "white light" and similar terms used herein are known to those skilled in the art. It may particularly refer to light having a correlated color temperature (CCT) between about 1800K and 20000K (e.g., between 2000 and 20000K, especially 2700-20000K), and for general illumination, a correlated color temperature particularly in the range of about 2000-7000K (e.g., between 2700K and 6500K). In embodiments, for example for backlighting purposes or for other purposes, the correlated color temperature (CCT) may particularly be in the range of about 7000K to 20000K. Furthermore, in embodiments, the correlated color temperature (CCT) is particularly within about 15 SDCM (standard deviation of color matching) from the BBL (blackbody track), particularly within about 10 SDCM from the BBL, and even more particularly within about 5 SDCM from the BBL. In a specific embodiment, the correlated color temperature (CCT) may be selected from the range of 6000-12000K, such as from the range of 7000-12000K, such as at least 8000K. Furthermore, in an embodiment, the correlated color temperature (CCT) may be selected from the range of 6000-12000K, such as from the range of 7000-12000K, combined with a CRI of at least 70.

[0056] In embodiments, the light generating device may also provide device light with a correlated color temperature (CCT) between approximately 5000 and 20000 K, such as a direct phosphor-converting LED (a blue light-emitting diode with a phosphor film for achieving, for example, 10000 K). Therefore, in certain embodiments, the light generating device is configured to provide device light with a correlated color temperature in the range of 5000-20000 K, or even more specifically in the range of 6000-20000 K, such as 8000-20000 K. The advantage of a relatively high color temperature is that there may be a relatively high blue component in the light source.

[0057] In embodiments, the arrangement light can (and may also be) colored light. In embodiments, colored arrangement light can be provided, for example, using a light generating device configured to generate light having wavelengths within the visible wavelength range. Therefore, in embodiments, the arrangement light can be colored light having wavelengths selected from the visible wavelength range. Additionally or alternatively, in embodiments, the arrangement light can be light having wavelengths selected from the UV wavelength range. Additionally or alternatively, in embodiments, the arrangement light can be light having wavelengths selected from the IR wavelength range.

[0058] The terms “visible,” “visible light,” or “visible emission,” and similar terms refer to light having one or more wavelengths in the range of about 380-780 nm. In this document, UV may specifically refer to wavelengths selected from the range of 190-380 nm (such as 200-380 nm). In this document, IR (infrared) may specifically refer to radiation having wavelengths selected from the range of 780-3000 nm, such as 780-2000 nm, for example, wavelengths up to about 1500 nm, such as at least 900 nm, but in certain embodiments, other wavelengths are also possible. The terms “light” and “radiation” are used interchangeably herein unless the context clearly indicates that the term “light” refers only to visible light. The terms “light” and “radiation” can therefore refer to UV radiation, visible light, and IR radiation. In specific embodiments, particularly for lighting applications, the terms “light” and “radiation” refer to (at least) visible light.

[0059] Furthermore, in embodiments, the lighting arrangement may include a control system. In embodiments, the control system may be configured to control the spectral properties of the lighting arrangement, such as, for example, the correlated color temperature or spectral power distribution of the arranged light. The term "control" and similar terms particularly refer to at least determining or monitoring the operation of an element. Thus, "control" and similar terms herein may refer, for example, to applying behavior to an element (determining behavior or monitoring the operation of the element), such as, for example, measuring, displaying, actuating, turning on, shifting, changing temperature, etc. In addition, the term "control" and similar terms may additionally include monitoring. Thus, the term "control" and similar terms may include applying behavior to an element and also applying behavior to and monitoring the element. Control of the element can be accomplished using a control system, which may also be indicated as a "controller." Thus, the control system and the element may be functionally coupled, at least temporarily or permanently. The element may include a control system. In embodiments, the control system and the element may not be physically coupled. Control may be accomplished via wired and / or wireless control. The term "control system" may also refer to multiple different control systems, particularly functionally coupled, wherein, for example, one control system may be a master control system, and one or more other control systems may be subordinate control systems. The control system may include or be functionally coupled to a user interface. The control system may also be configured to receive and execute instructions from a remote control. In embodiments, the control system may be controlled via an app on a device, such as a portable device like a smartphone or telephone, tablet, etc. Therefore, the device is not necessarily coupled to the lighting system, but may be (temporarily) functionally coupled to it. Thus, in embodiments, the control system may (also) be configured to be controlled by an app on a remote device. In such embodiments, the control system of the lighting system may be a subordinate control system or control in a subordinate mode. For example, the lighting system may be identified by a code, specifically a unique code for the corresponding lighting system. The control system of the lighting system may be configured to be controlled by an external control system that accesses the lighting system based on knowledge of the (unique) code, through a user interface or optical sensor input (e.g., a QR code reader). The lighting system may also include components for communicating with other systems or devices, such as based on Bluetooth, Thread, Wi-Fi, LiFi, ZigBee, BLE, or WiMAX or another wireless technology.

[0060] A system, apparatus, or device may perform actions in a “mode,” “operational mode,” “mode of operation,” or “running mode.” The term “operational mode” may also be indicated as “control mode.” Similarly, in a method, actions, stages, or steps may be performed in a “mode,” “operational mode,” “mode of operation,” or “running mode.” This does not preclude the system, apparatus, or device from being adapted to provide another control mode or multiple other control modes. Similarly, this does not preclude the possibility of performing one or more other modes before and / or after the execution mode. However, in embodiments, a control system may be available that is adapted to provide at least a control mode. Where other modes are available, such mode selection may be performed, in particular, via a user interface, but other options, such as performing modes based on sensor signals or (time) schemes, are also possible. In embodiments, an operating mode may also refer to a system, apparatus, or device that can operate only in a single operating mode (i.e., “on,” without further adjustability). Thus, in embodiments, a control system may be controlled based on one or more of the following: input signals from the user interface, sensor signals (of sensors), and timers. The term "timer" can refer to a clock and / or a scheduled time scheme.

[0061] In a further aspect, the invention also provides a lamp or illuminator comprising an illumination arrangement as defined herein. The illuminator may further include a housing, optical elements, louvers, etc. The lamp or illuminator may also include a housing surrounding the illumination arrangement. The lamp or illuminator may include a light window or housing opening in the housing through which the arrangement light can escape from the housing. In a further aspect, the invention also provides a projection device comprising an illumination apparatus as defined herein. In particular, a projection apparatus or “projector” or “image projector” can be an optical device that projects an image (or moving image) onto a surface such as, for example, a projection screen. The projection apparatus may include one or more illumination arrangements as described herein. Therefore, in one aspect, the invention also provides an illumination device selected from the group consisting of lamps, illuminators, projector devices, disinfection devices, photochemical reactors, and optical wireless communication devices, including illumination arrangements as defined herein. The illumination device may include a housing or carrier configured to house or support one or more elements of the illumination arrangement. For example, in an embodiment, the illumination device may include a housing or carrier configured to house or support one or more of a reflector and a light generating device. In embodiments, a lighting device, particularly a lamp or illuminator, may include a single lighting arrangement. Alternatively, in embodiments, a lighting device, particularly a lamp or illuminator, may include multiple lighting arrangements. In addition to the terms "lighting device" or "lighting system" and similar terms, the terms "light generating device" or "light generating system" (and similar terms) may also be used. A lighting device or lighting system may be configured to generate device light (or "lighting device light") or system light ("or lighting system light"). As mentioned above, the terms light and radiation can be used interchangeably.

[0062] In a further aspect, the invention can provide a track lighting system comprising one or more lighting devices as described above. Specifically, in embodiments, the track lighting system may include one or more lamps. Additionally or alternatively, the track lighting system may include one or more illuminators. Furthermore, in embodiments, the track lighting system may include an elongated track. The elongated track may be configured, in particular, to electrically and / or mechanically connect connectors (of the lighting devices) to a power source. In a further aspect, the invention can provide a method for illuminating a portion of a space. In embodiments, the method may include providing an lighting arrangement as described herein. Specifically, in embodiments, the method may include installing the lighting arrangement and configuring it in one of a reflector configurations according to the portion of the space to be illuminated. Furthermore, the method may include electrically connecting the lighting arrangement (especially a light-generating device) to a power source such that the arranged light illuminates the (desired) portion of the space. Attached Figure Description

[0064] Embodiments of the invention will now be described by way of example only, with reference to the accompanying schematic diagrams, in which corresponding reference numerals denote corresponding parts, wherein: Figure 1A-1C The lighting arrangement is depicted schematically.

[0065] Figure 2A-2B The lighting arrangement is depicted schematically.

[0066] Figures 3A-3D The lighting arrangement is depicted schematically.

[0067] Figures 4A-4D The lighting arrangement is depicted schematically.

[0068] Figures 5A-5B A track lighting system, including the lighting arrangement, is schematically depicted.

[0069] Figure 6 Further applications of the lighting arrangement are illustrated schematically.

[0070] The diagram is not necessarily drawn to scale. Detailed Implementation

[0072] Figure 1 schematically depicts an embodiment of the lighting arrangement 1000 of the present invention. As depicted, the lighting arrangement 1000 may include a lighting unit 1500. In an embodiment, the lighting unit 1500 may include a light generating device 100, a reflector 200, and a connector 400.

[0073] In an embodiment, the light generating device 100 may include an LED light source 10. Furthermore, in an embodiment, the light generating device 100 may be configured to provide device light 101 (along the optical axis O). The light generating device 100 may be configured, in particular, to provide device light 101 to a reflector 200. The reflector 200 may be reflective to device light 101. Additionally, in an embodiment, as depicted herein, the reflector 200 may include a first reflector module 210 and a second reflector module 220.

[0074] In embodiments, each reflector module 210, 220 may include an internal light-emitting window 201 and an external light-emitting window 202. Specifically, as depicted, in embodiments, the first reflector module 210 may include a first internal light-emitting window 211 and a first external light-emitting window 212, and the second reflector module 220 may include a second internal light-emitting window 221 and a second external light-emitting window 222. Furthermore, in embodiments, the first reflector module 210 may include a first end portion 215 and a first reflector wall 216. Similarly, in embodiments, the second reflector module 220 may also include a second end portion 225 and a second reflector wall 226. In embodiments, the reflector 200 may be hollow. Therefore, in such embodiments, the first reflector module 210 and the second reflector module 220 may be hollow. Alternatively, in embodiments, the first reflector module 210 and the second reflector module 220, and thus the reflector 200, may include a solid light-transmitting body. Figure 1A Sub-figure II depicts a cross-sectional view of the lighting arrangement 1000 (perpendicular to the main axis A, see below), in which reflector modules 210, 220 include solid light-transmitting bodies.

[0075] Furthermore, in an embodiment, connector 400 may be configured to physically connect the first reflector module 210 and the second reflector module 220 (to each other). Specifically, in an embodiment, connector 400 may be configured to physically connect a first end 215 (of the first reflector module 210) and a second end 225 (of the second reflector module 220). Therefore, in an embodiment, connector 400 may be configured to support reflectors 200, particularly the first reflector module 210 and the second reflector module 220. Additionally, in an embodiment, connector 400 may include a hinge 410. In an embodiment, hinge 410 may hingeably connect the first reflector module 210 and the second reflector module 220 (to allow for different (spatial) reflector configurations).

[0076] In another embodiment, the first reflector module 210 and the second reflector module 220 may be configured as different (spatial) reflectors (relative to each other). Furthermore, the first reflector wall 216 may include two first wall ends 217. In an embodiment, a first plane P1 may be defined by the first end 215 and the two first wall ends 217. Similarly, in an embodiment, the second reflector wall 226 may include two second wall ends 227. In an embodiment, a second plane P2 may be defined by the second end 225 and the two second wall ends 227. Specifically, in an embodiment, the first plane P1 and the second plane P2 may have an included angle β.

[0077] Figure 1AReflector 200 in a first (especially "closed") reflector configuration is schematically depicted. Specifically, in the first reflector configuration (of reflector modules 210, 220), the first plane P1 and the second plane P2 may have a first included angle β1. In embodiments, the first included angle β1 may be substantially zero. Therefore, in embodiments, the first plane P1 and the second plane P2 may be arranged in parallel in the first reflector configuration. However, this is not necessarily the case.

[0078] In an embodiment, the side view cross section P of the lighting arrangement (such as...) can be defined perpendicular to the first plane P1 and the second plane P2. Figure 1A Subgraph I and Figure 1B-3C (As shown in the diagram). In an embodiment, the illumination arrangement may have a principal axis A that is parallel to the side view cross section P and intersects with the connector 400. In an embodiment, a first plane P1 may have a first angle α1 relative to the principal axis A. Similarly, in an embodiment, a second plane P2 may have a second angle α2 relative to the principal axis A. As depicted herein, in a first reflector configuration, the first angle α1 and the second angle α2 may be equal and may both be substantially zero. In such an embodiment, the principal axis A and the optical axis O may substantially coincide.

[0079] Figure 1B Reflector 200 in a second reflector (especially "open") configuration is schematically depicted. Specifically, in the second reflector configuration (reflector modules 210, 220), the first plane P1 and the second plane P2 may have a second included angle β2 that is not equal to the first included angle β1. Specifically, in the second reflector configuration, the first plane P1 and the second plane P2 may not be arranged parallel to each other. Furthermore, in such an embodiment, at least a portion of the arranged light 1001 can be transmitted through the first internal light exit window 211 (of the first reflector module 210) and the second internal light exit window 221 (of the second reflector module 220). Furthermore, in this embodiment, the maximum included angle β... max With the minimum angle β min The difference can be selected from 10° to 180°.

[0080] As described herein, in embodiments, the first angle α1 and the second angle α2 can be equal to each other and not equal to zero. In this embodiment, the principal axis A and the optical axis O can be substantially coincident. Alternatively, as... Figure 1C As shown, the first angle α1 and the second angle α2 may not be equal. In such an embodiment, the principal axis A and the optical axis O may not coincide.

[0081] The illumination arrangement 1000 can be configured to generate arrangement light 1001. In an embodiment, arrangement light 1001 may include at least a portion of device light 101. Furthermore, in an embodiment, device light 101 may be transmitted through one or more of a first external light exit window 212 and a second external light exit window 222. Reference 500 may also refer to an optical element. Specifically, in an embodiment, one or more of a first internal light exit window 211 and a second internal light exit window 221 may include an optical element 500. In an embodiment, optical element 500 may include one or more of a refractive structure and a reflective structure. Specifically, optical element 500 may be configured to redirect and / or beam shape (escape from reflector 200) device light 101 (along the optical axis O). Therefore, in an embodiment, optical element 500 (and thus one or more of the first internal light exit window 211 and the second internal light exit window 221) may be light-transmitting.

[0082] Furthermore, in an embodiment, the lighting unit 1500 may include a locking element configured to (temporarily) lock at least one of the (spatial) reflector configurations of the reflector modules 210, 220 (relative to each other and / or the connector 400). For example, in an embodiment, the locking element may include one or more screws or latches.

[0083] Furthermore, in an embodiment, in a side view cross-section P of the lighting arrangement 1000 (defined perpendicular to the first plane P1 and the second plane P2), the first shortest distance d1 may be defined between one of the first wall ends 217 and one of the second wall ends 227. In a first reflector configuration, in an embodiment, the first shortest distance d1 may be substantially zero, such as in... Figure 1A As depicted in the image. However, in the second reflector configuration, in the embodiment, the first minimum distance can be selected from the range of 5-20 cm.

[0084] Figure 2 schematically depicts some further embodiments of the lighting arrangement 1000. As shown here, the reflector 200 may have a height h defined parallel to the main axis A. Furthermore, the reflector 200 may have a maximum width referred to herein as d2. Figure 2A In particular, reflector 200 in the first reflector configuration is depicted. Figure 2B Reflector 200 in the second reflector configuration is depicted in particular. As depicted in both cases, in the embodiment, d2 ≥ d1.

[0085] Furthermore, in embodiments, as depicted herein, in at least one of the (spatial) reflector configurations, one of the first reflector module 210 and the second reflector module 220 may be configured to accommodate at least a portion of the other of the first reflector module 210 and the second reflector module 220. In other words, in such an embodiment, at least one of the first reflector wall 216 and the second reflector wall 226 may overlap with the other of the first reflector wall 216 and the second reflector wall 226. When the reflector 200 is removed from the first reflector configuration (e.g., Figure 2A (As depicted in the image) Switch to the second reflector configuration (such as...) Figure 2B When depicted in the figure, the overlapping portions of reflector walls 216, 226 may be offset relative to each other.

[0086] In Figure 4, each sub-figure I schematically depicts a three-dimensional view of the lighting arrangement 1000, while each sub-figure II schematically depicts a cross-sectional view of the lighting arrangement 1000 perpendicular to the principal axis A. Specifically, Figure 4A , 4B An embodiment of the overlapping of the first reflector wall 216 and the second reflector wall 226 is schematically depicted in 4D. In this document, Figure 4A and 4B An embodiment of a reflector comprising (only) a first reflector module 210 and a second reflector module 220 is depicted, while Figure 4D A reflector 200 is depicted, comprising a third reflector module 230 and a fourth reflector module 230. Conversely, Figure 4C An embodiment of a reflector 200 comprising a first reflector module 210, a second reflector module 220, and a third reflector module 230 is schematically depicted, wherein each of the reflector modules 200, 210, 220, and 230 comprises a substantially solid light-transmitting body. Therefore, in embodiments, the invention can provide a light-generating system 1000 (such as, for example, a track lighting system 2000) comprising an illuminator 2 having n matched reflector modules, wherein the opening angle of the light exit window can vary in a single direction. In such embodiments, n can be selected from the range of 2-8, such as the range of 2-6, or as the range of 2-4. Figure 4AAs depicted, reflector modules 210 and 220 can be configured such that (i) a first virtual vector Vi (see sub-Figure II) extending from a plane perpendicular to both the first plane P1 and the second plane P2 can first intersect the first reflector wall 216 and then the second reflector wall 226, and (ii) a second virtual vector Vii (see sub-Figure II) extending from a plane perpendicular to both the first plane P1 and the second plane P2 (in a direction perpendicular to the first virtual vector Vi) can first intersect the second reflector wall 226 and then the first reflector wall 216. Therefore, in such an embodiment, both the first reflector module 210 and the second reflector module 220 can accommodate at least a portion of the corresponding other reflector modules 210 and 220.

[0087] As described, in Figure 4B In this embodiment, reflector modules 210 and 220 can be configured such that one or more virtual vectors V (see sub-Figure II) extending from a plane perpendicular to the first plane P1 and the second plane P2 (both) can first intersect the first reflector wall 216 and then the second reflector wall 226, and vice versa (not depicted here). Thus, in such an embodiment, the second reflector module 220 can accommodate at least a portion of the first reflector module 210.

[0088] As described, in Figure 4B In this embodiment, reflector modules 210 and 220 can be configured such that one or more virtual vectors V (see sub-Figure II) extending from a plane perpendicular to the first plane P1 and the second plane P2 (both) can first intersect the first reflector wall 216 and then the second reflector wall 226, and vice versa (not depicted here). Thus, in such an embodiment, the second reflector module 220 can accommodate at least a portion of the first reflector module 210.

[0089] exist Figure 4C Therefore, reflector 200 may include a third reflector module 230. In an embodiment, the third reflector module 230 may include a third internal light exit window and a third external light exit window 232. Furthermore, in an embodiment, the third reflector module 230 may include a third reflector wall 236. In addition, the third reflector wall 236 may also include two third wall ends 237.

[0090] In addition, such as Figure 4DAs depicted, reflector 200 may even include a fourth reflector module 240. In an embodiment, the fourth reflector module 240 may include a fourth internal light exit window and a fourth external light exit window. Furthermore, in an embodiment, the fourth reflector module 240 may include a fourth reflector wall 246. Additionally, the fourth reflector wall 246 may also include two fourth wall ends 247.

[0091] Similar to the above, in Figure 4D In this embodiment, reflector modules 210, 220, 230, and 240 can be configured such that (i) a first virtual vector Vi (see sub-figure II) extending from the main axis A can first intersect one of the first, second, third, or fourth reflector walls 216, 226, 236, and 246, and then intersect the other of the first, second, third, or fourth reflector walls 216, 226, 236, and 246; and (ii) a second virtual vector Vii (see sub-figure II) extending from the main axis A (in a direction (perpendicular or) orthogonal to the first virtual vector Vi) can first intersect one of the first, second, third, or fourth reflector walls 216, 226, 236, and 246, and then intersect the other of the first, second, third, or fourth reflector walls 216, 226, 236, and 246. Therefore, in such an embodiment, each reflector module can accommodate at least a portion of another reflector module. However, in alternative embodiments (similar to) Figure 4B In this embodiment, reflector 200 may include four reflector modules, which are configured such that two of the reflector modules can be configured to accommodate at least a portion of the other two reflector modules. For example, in an embodiment, the first reflector module 210 and the third reflector module 230 may be configured to accommodate at least a portion of the second reflector module 220 and the fourth reflector module 240, that is, the first reflector wall 216 and the third reflector wall 236 may at least partially overlap with the second reflector wall 226 and the fourth reflector wall 246.

[0092] Figure 3 schematically depicts several further embodiments of the lighting arrangement 1000. These figures particularly highlight the positions of the light generating devices(s) 100, and more particularly the LED light sources(s) 10, within the lighting arrangement 1000. In embodiments, the light generating devices 100 can be configured to provide device light 101 to the reflector 200. In embodiments, reflector walls 216, 226 can define an internal reflector space; in other words, reflector walls 216, 226 can separate the internal reflector space from the external environment. Therefore, in embodiments, the light generating devices 100 can be configured to provide device light 101 to the reflector 200, particularly to the internal reflector space of the reflector 200. Thus, in situations such as... Figure 3CIn the embodiments depicted, the LED light source 10 of the light generating device 100 can be configured to be centrally arranged on the connector 400, particularly within the internal reflector space. Additionally or alternatively, in situations such as... Figure 3A and 3B In the embodiments depicted, the light generating device 100 may include more than one LED light source 10, such that for each reflector module 210, 220, a corresponding LED light source 10 can be configured on the connector 400. Alternatively, each reflector module 210, 220 may include an LED light source 10 at any location within the internal reflector space.

[0093] Specifically, in some embodiments, for each reflector module 210, 220, the corresponding LED light source 10 can be configured on the connector 400 and within the internal reflector space (not shown). However, in such... Figure 3A and 3B In other embodiments depicted, for each reflector module 210, 220, the corresponding LED light source 10 can be configured on the connector 400 and outside the internal reflector space. Thus, in such embodiments, the LED light source 10 can be configured to "inject" light into the reflector 200. Therefore, in some embodiments, the reflector 200 can be configured downstream of the light generating device 100. Additionally or alternatively, in such embodiments… Figure 3D In the embodiments depicted, the light generating device 100 may include more than one LED light source 10, such that for each reflector module 210, 220, the corresponding LED light source 10 may be configured on its corresponding internal light emission window 201, 211, 221.

[0094] In embodiments, reflector modules 210, 220 may be particularly curved. Specifically, as... Figure 3A As depicted, in an embodiment, the first reflector wall 216 may have a (approximately) semi-parabolic shape in a first cross-section defined perpendicular to the first plane P1. Additionally or alternatively, in an embodiment, the second reflector wall 226 may have a (approximately) semi-parabolic shape in a second cross-section defined perpendicular to the second plane P2. As depicted, in an embodiment, the first reflector wall 216 and the second reflector wall 226 may have the same semi-parabolic shape. Therefore, in an embodiment, each reflector module 210, 220 may have a semi-conical shape, and thus, in such an embodiment, the reflector 200 may have a (circular) conical shape. However, this may not necessarily be the case.

[0095] Furthermore, in certain embodiments (not depicted), reflector 200 may include a (cross / square shape) composite parabolic concentrator (in at least one of the (spatial) reflector configurations).

[0096] Figure 6 An embodiment of a luminaire 2 including the lighting arrangement 1000 as described above is schematically depicted. Reference 301 indicates a user interface that may be functionally coupled to a control system 300 that is constituted by or functionally coupled to the lighting arrangement 1000. Figure 6 An embodiment of a lamp 1 including an illumination arrangement 1000 is also schematically depicted. Reference 3 indicates a projector device or projector system that can be used to project images, such as onto a wall, and which may also include the illumination arrangement 1000. Therefore, Figure 6 An embodiment of a lighting device 1200 selected from the group consisting of a lamp 1, a illuminator 2, a projector device 3, a disinfection device, a photochemical reactor, and an optical wireless communication device, as depicted herein in a lighting arrangement 1000, is schematically illustrated. In the embodiment, such a lighting device may be a lamp 1, a illuminator 2, a projector device 3, a disinfection device, or an optical wireless communication device. The lighting device light emanating from the lighting device 1200 is indicated by reference 1201. The lighting device light 1201 may consist substantially of arrangement light 1001, and in a particular embodiment may therefore be arrangement light 1001. Reference 1300 refers to a space, such as a room.

[0097] Figure 5 schematically depicts a track lighting system 2000 including one or more lamps 1 and / or one or more illuminators 2 as described above. The track lighting system 2000 may also include an elongated track 40 configured to electrically and / or mechanically connect a connector 400 (of the lighting arrangement 1000) to a power supply 50. Specifically, in an embodiment, Figure 5A A track lighting system 2000 comprising multiple lighting units 1500 is schematically depicted, wherein reflectors 200 are configured in a first (or “closed”) reflector configuration. As depicted herein, in an embodiment, the lighting units 1500 may be configured to be suspended such that the main axis A is perpendicular to the ceiling 1310.

[0098] Alternatively, Figure 5BA track lighting system 2000 comprising multiple lighting units 1500 is schematically depicted, wherein one reflector 200 is configured in a first (or "closed") reflector configuration and another reflector 200 is configured in a second (or "open") reflector configuration. As depicted herein, in an embodiment, the lighting unit 1500 may be configured to be suspended such that the main axis A is parallel to the ceiling 1310. Note that in an embodiment, the lighting unit 1500 may also be configured such that the main axis A may have an angle with the ceiling 1310 (i.e., not parallel or perpendicular). Therefore, in the embodiments described herein, one of the reflector modules 210, 220 may be fixed in position relative to the connector 400 (e.g., using a locking element as described above), such that in a first (“closed”) configuration, the optical axis O is parallel to the ceiling 1310, while the other reflector module 210, 220 may be tilted in the direction of gravity (e.g., using a hinge 410), such that in a second (“open”) configuration, the optical axis O is displaced away from the ceiling 1310.

[0099] The term “multiple” refers to two or more. Those skilled in the art will understand the terms “substantially” or “essentially” and similar terms used herein. The term “substantially” or “essentially” may also include embodiments having connotations such as “completely,” “thoroughly,” “all,” etc. Therefore, in embodiments, the adjective “substantially” or “essentially” may also be removed. Where applicable, the term “substantially” or “essentially” may also refer to 90% or higher, such as 95% or higher, particularly 99% or higher, even more particularly 99.5% or higher, including 100%. The term “comprising” also includes embodiments in which the term “comprising” means “consisting of…”. The term “and / or” particularly refers to one or more items mentioned before and after “and / or.” For example, the phrase “item 1 and / or item 2” and similar phrases may refer to one or more of items 1 and 2. In one embodiment, the term “comprising” may mean “consisting of…”, but in another embodiment it may also mean “comprising at least the defined species and optional one or more other species.” The use of the verb “comprising” and its conjugates does not exclude the presence of elements or steps other than those described in the claims. Unless the context explicitly requires otherwise, throughout the specification and claims, the words “comprising,” “including,” etc., should be interpreted in an inclusive sense, rather than an exclusive or exhaustive sense; that is, in the sense of “including but not limited to.” The article “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. Furthermore, the terms first, second, third, etc., in the specification and claims are used to distinguish between similar elements, and not necessarily to describe order or chronological sequence. It should be understood that such terms are interchangeable where appropriate, and embodiments of the invention described herein can operate in an order different from that shown in the description or illustrations herein.

[0100] This document may describe equipment, apparatus, or systems during operation. As will be apparent to those skilled in the art, this invention is not limited to the operating methods or equipment, apparatus, or systems used in operation.

[0101] It should be noted that the above embodiments are illustrative and not limiting of the invention, and those skilled in the art will be able to devise many alternative embodiments without departing from the scope of the appended claims. Any reference numerals placed between parentheses in the claims should not be construed as limiting the claims.

[0102] This invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the device, apparatus, or system claims, several means are enumerated, some of which can be embodied by one or more of the same hardware. The fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to produce advantageous effects. In a further aspect, the invention (therefore) provides a software product that, when run on a computer, enables the provision of one or more embodiments of the method as described herein.

[0103] The present invention also provides a control system that can control a device, apparatus, or system, or perform the methods or processes described herein. Furthermore, the present invention provides a computer program product that, when functionally coupled to or executed by a computer included therein, controls one or more controllable elements of such device, apparatus, or system.

[0104] This invention is further applicable to devices, apparatuses, or systems that include one or more of the characterizing features described in the specification and / or shown in the drawings. The invention also relates to methods or processes that include one or more of the characterizing features described in the specification and / or shown in the drawings. Various aspects discussed in this patent may be combined to provide additional advantages. Furthermore, those skilled in the art will understand that embodiments may be combined, and more than one embodiment may be combined. Additionally, some features may form the basis for one or more segmented applications.

Claims

1. A lighting arrangement (1000) comprising a lighting unit (1500); wherein the lighting unit (1500) comprises a light generating device (100), a reflector (200), and a connector (400), wherein: - The light generating device (100) includes an LED light source (10); wherein the light generating device (100) is configured to provide device light (101); - The reflector (200) is reflective of the device light (101); wherein the reflector (200) includes a first reflector module (210) and a second reflector module (220); wherein the first reflector module (210) includes a first internal light exit window (211) and a first external light exit window (212), and wherein the second reflector module (220) includes a second internal light exit window (221) and a second external light exit window (222); - The first reflector module (210) further includes a first end (215) and a first reflector wall (216); wherein the second reflector module (220) further includes a second end (225) and a second reflector wall (226); wherein the connector (400) is configured to physically connect the first end (215) and the second end (225); wherein the first reflector wall (216) includes two first wall ends (217); wherein the second reflector wall (226) includes two second wall ends (227); wherein the first reflector module (210) and the second reflector module (220) can be configured for different reflector configurations; - A first plane (P1) defined by a first end (215) and two first wall ends (217) and a second plane (P2) defined by a second end (225) and two second wall ends (227) have an included angle (β), wherein the first included angle (β1) is present in the first reflector configuration, and the second included angle (β2) is not equal to the first included angle (β1) in the second reflector configuration; and The lighting arrangement (1000) is configured to generate an arrangement light (1001) comprising at least a portion of a device light (101), wherein the device light (101) is transmitted through one or more of a first external light exit window (212) and a second external light exit window (222). In the second reflector configuration, the first plane (P1) and the second plane (P2) are not parallel, and at least a portion of the arranged light (1001) is transmitted through the first internal light exit window (211) and the second internal light exit window (221), with the maximum included angle (β) max ) and minimum included angle (β) min The difference between them is selected from the range of 10-180°, and Each of the first internal light exit window (211) and the second internal light exit window (221) includes an optical element (500), the optical element (500) including one or more of a refractive structure and a reflective structure, and the optical element (500) is configured to redirect and / or beam shaping device light (101).

2. The lighting arrangement (1000) according to claim 1, wherein in the first reflector configuration, the first plane (P1) and the second plane (P2) are arranged in parallel.

3. The lighting arrangement (1000) according to any one of the preceding claims, wherein the connector (400) includes a hinge (410) wherein the hinge (410) is hingedly connected to the first reflector module (210) and the second reflector module (220).

4. The lighting arrangement (1000) according to any one of the preceding claims, wherein one or more of the following are applicable: (a) in a first cross-section defined perpendicular to the first plane (P1), the first reflector wall (216) has a semi-parabolic shape, and (b) in a second cross-section defined perpendicular to the second plane (P2), the second reflector wall (226) has a semi-parabolic shape.

5. The lighting arrangement (1000) according to claim 4, wherein, The first reflector wall (216) and the second reflector wall (226) have the same semi-parabolic shape.

6. The lighting arrangement (1000) according to any one of the preceding claims, wherein the reflector (200) comprises a composite parabolic concentrator.

7. The lighting arrangement (1000) according to any one of claims 1-6, wherein, The reflector (200) is a hollow reflector.

8. The lighting arrangement (1000) according to claim 7, wherein in at least one of the reflector configurations, one of the first reflector module (210) and the second reflector module (220) is configured to accommodate at least a portion of the other of the first reflector module (210) and the second reflector module (220), such that one or more virtual vectors (V) parallel to at least one of the first plane (P1) and the second plane (P2) and extending from a plane perpendicular to the first plane (P1) and the second plane (P2) intersect both the first reflector wall (216) and the second reflector wall (226).

9. The lighting arrangement (1000) according to any one of claims 1-6, wherein each of the reflector modules (210, 220) comprises a solid light-transmitting body.

10. The lighting arrangement (1000) according to any one of the preceding claims, wherein in the side view cross section (P) of the lighting arrangement (1000) in the second reflector configuration, a first shortest distance (d1) is defined between one of the first wall ends (217) and one of the second wall ends (227), and wherein in the second reflector configuration, the first shortest distance (d1) is selected from the range of 5-20 cm.

11. The lighting arrangement (1000) according to any one of the preceding claims, wherein, The lighting unit (1500) includes a locking element configured to lock at least one of the reflector configurations of the reflector modules (210, 220).

12. A lighting device (1200) selected from lamps (1) or illuminators (2), said illuminator (2) comprising a lighting arrangement (1000) according to any one of claims 1-11.

13. The track lighting system (2000) of claim 12, comprising one or more lamps (1) and / or one or more illuminators (2), wherein the track lighting system (2000) comprises an elongated track (40) for electrically and mechanically connecting the connector (400) to a power source (50).

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