Light and heat-generating module

Abstract

A light and heat-generating module (100) and a luminaire thereof are provided. The light and heat-generating module (100), comprising at least one light emitting diode, LED, light source (110) arranged to emit LED light (120), at least one optical element (130) arranged in a downstream direction of the emitted LED light, a plurality of heating elements (150) arranged to generate heat. The emitted LED light is optically influenced by the at least one optical element, and the plurality of heating elements is distributedly arranged within the at least one optical element.

Description

[0001] Light and heat-generating module

[0002] FIELD OF THE INVENTION

[0003] The present invention generally relates to a light and heat-generating module. More specifically, the present invention is related to a light and heat-generating module comprising a light emitting diode, LED, light source and heating elements.

[0004] BACKGROUND OF THE INVENTION

[0005] Infrared heating panels and transparent carbon-based heating foils are used in the prior art for providing heating for a space. In particular, a variety of devices for generating heat radiation are available.

[0006] There are various issues and problems with heating panels. In particular, heating panels can be cumbersome as the heating panels need to be located at specific locations and be directed towards users for effective use. Heating panels occupy a space on a wall or ceiling, thereby taking up space that then cannot be used for other purposes. Consequently, there is a desire to develop and provide improved heating panels.

[0007] Considering the combination of heating panels and lighting, it will be appreciated that the use of light emitting diodes (LEDs) for illumination purposes continues to attract attention. Compared to incandescent lamps, fluorescent lamps, neon tube lamps, etc., LEDs provide numerous advantages such as a longer operational lite, a reduced power consumption, and an increased efficiency related to the ratio between light energy and heat energy. In particular, LED lights are highly appreciated as they are very decorative.

[0008] In the prior art, there exist combined lighting and heating devices which, e.g., have been implemented to neutralize contaminants. However, there remains a stark need for a development in this field by apparatuses and combined lighting and heating devices which may provide an improved indoor temperature management and lighting. In particular, there is a need for an optimized illumination and heating for smaller spaces / individual areas such as workplaces.

[0009] Hence, it is an object of the present invention to combine the advantageous properties of heating panels in respect to heating spaces and the advantageous properties of LEDs with respect to aesthetics and light distribution purposes to provide a light and heat- generating module. More particular, it is an object of the present invention to resolve, or alleviate at least one of the aforementioned problems.

[0010] SUMMARY OF THE INVENTION

[0011] It is of interest to overcome at least some of the deficiencies related to heating panels, and in particular for achieving an improved indoor temperature and lighting management of a space whilst providing a non-complex and / or conveniently operated light and heat-generating module.

[0012] This and other objects are achieved by providing a light and heat-generating module having the features in the independent claim. Preferred embodiments are defined in the dependent claims.

[0013] According to a first aspect of the present invention, there is provided a light and heat-generating module. The light and heat-generating module comprises at least one light emitting diode (LED) light source arranged to emit LED light, at least one optical element arranged in a downstream direction of the emitted LED light, and a plurality of heating elements configured to generate heat. The emitted LED light is optically influenced by the at least one optical element. The plurality of heating elements is distributedly arranged within the at least one optical element. At least one optical element is rotatable with respect to the at least one LED light source such that at least a portion / part of the plurality of heating elements are rotated with respect to the at least one LED light source. Preferably, at least one optical element is pivotably rotatable with respect to the at least one LED light source. Herein, the term “pivotably rotatable” means that there is an ability (of the optical element(s)) to rotate in full or partially around a pivot point. The rotation performed for a “pivotably rotatable” optical element is around a point. This embodiment is advantageous as it enables an optimized heating of a space, in that the thermal radiation generated by heating elements can be arranged in different directions. For example, a pivot may be formed by a joint that may be, a hinge joint, a ball-and socket joint, a saddle joint, or other suitable fastening means that enables a rotational motion.

[0014] According to a second aspect of the present invention, there is provided a luminaire. The luminaire comprises a light and heat-generating module according to the first aspect of the present invention, and a luminaire housing. The luminaire housing is arranged to at least partially enclose the light and heat generating module.

[0015] Thus, the present invention is based on the concept that lighting and heating are generated from the same module or device, with the light being optically influenced by at least one optical element comprising heating elements to enable an improved lighting and heating control of a space. In particular, an optimization of the space for lighting and heating fixtures is achieved by the light and heat-generating module according to the present invention, wherein heating elements are comprised within an optical element thereby influencing emitted LED light from a LED light source. Due to the integration of heating elements within an optical element, the light and heat-generating module provides an optimal resource efficiency. The light and heat-generating module is further advantageous in that it enables a radiation of heat and LED light towards a user area in a more effective manner. The combined light and heat-generating module furthermore has improved aesthetics.

[0016] There is provided a light and heat-generating module. By the term “light and heat-generating module”, it is here meant a device configured or arranged to generate lighting and heat during operation, e.g., by comprising at least one lighting element and at least one heating element. Herein, the light and heat-generating module comprises at least one LED light source arranged to emit LED light. It is appreciated that in an embodiment, the LED light source may be arranged on a carrier, such as an element, substrate or the like arranged to mechanically and / or electronically support a LED light source (e.g., a LED, LED filament, an array of LEDs (such as an linear LED array), etc.). The carrier may, for example, be a printed circuit board (PCB). By the term “arranged to emit LED light” it is here meant that the LED light source is configured to emit LED light at a desired wavelength, or range of wavelengths. The light and heat-generating module comprises at least one optical element arranged in a downstream direction of the emitted LED light. Hence, the light and heatgenerating module comprises one or more optical elements arranged downstream the direction of the LED light emitted from the LED light source. Herein “downstream” means that the optical element will be irradiated by (at least part of) the emitted LED light. In other words, the optical element is arranged to be in the path of the LED light emitted from the LED light source in order to optically influence some or all of the emitted LED light. A plurality of heating elements is arranged to generate heat. In an embodiment, the plurality of heating elements arranged to generate heat may be configured to generate heat in the form of thermal radiation. In other words, the plurality of heating elements is configured to generate heat to be radiated away from the plurality of heating elements. By the term “heating element” it is meant an element, unit, substrate, or the like, configured or adapted to generate heat. Herein generating thermal radiation means, for example, converting electricity, conductive heat or convection heat into thermal radiation. The plurality of heating elements is distributedly arranged within the at least one optical element. It is appreciated that the term “distributedly arranged” may imply that the heating elements are at least evenly arranged or orderly arranged, e.g., according to a pattern.

[0017] According to an embodiment of the present invention, the plurality of heating elements is arranged to direct thermal radiation generated by the plurality of heating elements into a beam space. Herein, the term “beam space” is the space into which electromagnetic radiation radiates from a body (i.e., thermal radiation (beams) from one or more heating elements). In other words, it is the space through which the electromagnetic radiation will travel. The at least one LED light source is arranged outside of the beam space of the thermal radiation. In other words, according to this arrangement of the light and heat-generating module, the LED light source will not be irradiated by the thermal radiation generated by the heating elements (i.e. not being subjected to the thermal radiation). This is advantageous as the LED light source will have an increased endurance and an improved effectiveness in virtue of not being unnecessarily heated by the heating elements’ thermal radiation. In other words, this is advantageous as the LED light source will not be heated by the heating elements, keeping the LED light source closer to its optimal working point.

[0018] According to an embodiment of the present invention, the plurality of heating elements is arranged in a plane, Pi. The present embodiment is advantageous in that the arrangement of the heating elements in the plane, Pi, may achieve a particularly desirable aesthetic effect and / or light distribution.

[0019] According to an embodiment of the present invention, the at least one LED light source comprises a plurality of LEDs arranged in an array. This embodiment is advantageous as the plurality of LEDs arranged in an array enables an improved control of the light emitted from the LED light source. Another advantage is that a particular pattern and / or a selection from the spectrum of light can be provided from a LED light source. Herein, an array of LEDs can comprise one or more different types of LEDs.

[0020] According to an embodiment of the present invention, at least one heating element is accommodated in a respective one of the optical elements and is pivotable with respect to said respective one of the optical elements. Or in other words, at least one heating element is pivotable with respect to the others. Thus it is enabled to change, focus and / or redirect heat radiation without optically influencing the emitted LED light. ..

[0021] According to an embodiment of the present invention each optical element of the at least one optical element at least partially encloses a respective LED light source of the at least one LED light source. This embodiment is advantageous as it enables the optical element to optically influence emitted LED light in more directions from the LED light source, thereby enabling an improved control and efficiency of the light and heat-generating module.

[0022] According to an embodiment of the present invention, the at least one optical element is arranged to at least one of reflect, transmit, diffuse, and collimate, the emitted LED light. Hence, the optical element is arranged to reflect, transmit, diffuse and / or collimate the emitted LED light. This embodiment is advantageous as the optical element hereby enables a fine tuning of the optical control of the light (LED light), e.g., if the light is to be directed in a particular direction, e.g., collimated, or if there is a desire to form a particular beam shape. It will be appreciated that the optical element can comprise several optical features. For example, in a first part of the at least one optical element, there may be a collimating effect on emitted light irradiating the first part, and in a second different part of the at least one optical element, there may be a diffusing effect on emitted light irradiating the second part.

[0023] According to an embodiment of the present invention, the plurality of heating elements is arranged to form a structure within the at least one optical element to optically influence the emitted LED light. This embodiment is advantageous as the heating elements contribute and enable a resource effective light shade structure, thus providing an improved light and heat-generating module.

[0024] According to an embodiment of the present invention, the at least one LED light source is thermally decoupled from the plurality of heating elements. Hence, the LED light source(s) is (are) thermally shielded from (i.e. not in thermal contact with) the plurality of heating elements.

[0025] According to an embodiment of the present invention, the at least one LED light source comprises a plurality of LED light sources unevenly distributed on the at least one optical element. This embodiment is advantageous as it may enable a more finely controlled and resource efficient light and heat-generating module.

[0026] According to an embodiment of the present invention, the plurality of heating elements has a first concentration of heating elements per volume unit in a portion of the at least one optical element, and the plurality of LED light sources has a second concentration of LED light source per volume unit on the portion of the at least one optical element, wherein the first concentration and the second concentration are different. Herein, a concentration of heating elements per volume unit means that for a specific area (space) and area (space) size, there is an amount or number of heating elements within said area and area size. The present embodiment is advantageous in that the light and heat-generating module is enabled to provide a fine-tuned variation in heat generation and light generation. It will be appreciated that in a further embodiment, the plurality of heating elements may have a third concentration of heating elements per volume unit in a (second) portion of the at least one optical element, wherein the third concentration of heating elements is greater than the first concentration of heating elements. The present embodiment is advantageous in that the light and heat-generating module is enabled to provide different thermal radiation in different regions based upon the concentration of heating elements within a particular region.

[0027] According to an embodiment of the present invention, the light and heatgenerating module is arranged within a mountable panel. The present embodiment is advantageous in that the mountable panel may be conveniently arranged in a ceiling or in (on) a wall.

[0028] According to an embodiment of the present invention, the luminaire comprises a controller connected to the light and heat-generating module. The controller is configured to control at least one of the emitted LED light from the at least one LED light source and the heat generated from the plurality of heating elements. The controller is configured to control the emitted LED light and / or the heat generated based on at least one of an input received by the controller, and a predetermined setting. Hence, the luminaire is configured to control, through the controller, the LED light emitted from the LED light source(s) and / or the heat generated from the plurality of heating elements based on an input received by the controller and / or a predetermined setting. The present embodiment is advantageous in that a user may conveniently set or control light and / or heat generated from a light and heat generating module, or that the light and / or heat is controlled based on a sensor input such as provided by a nearby or integrated presence sensor.

[0029] According to an embodiment of the present invention, the luminaire comprises an actuator configured to rotate at least one of the at least one LED light source, the at least one optical element, and the plurality of heating elements, of the light and heat-generating module. Hence, the luminaire is thereby configured to control an actuator, and the actuator is configured to rotate the LED light source, the optical element, and / or the plurality of heating elements of the light and heat-generating module. The present embodiment is advantageous in that a user may conveniently adjust the light and heat-generating module. A further advantageous factor by the present embodiment is the enablement of an improved control of emitted light and / or heat generated by the light and heat-generating module. It should be understood that the luminaire of the second aspect of the present invention may have similar and / or identical embodiments and / or advantages as the above- mentioned light and heat-generating module of the first aspect of the present invention.

[0030] Further objectives of, features of, and advantages with, the present invention will become apparent when studying the following detailed disclosure, the drawings and the appended claims. Those skilled in the art will realize that different features of the present invention can be combined to create embodiments other than those described in the following.

[0031] BRIEF DESCRIPTION OF THE DRAWINGS

[0032] This and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing embodiment(s) of the invention.

[0033] Figs. 1, 2, 3a-b, 4a-b, 5a-b, 6a-b and 7a-b schematically show a light and heatgenerating module according to embodiments of the present invention, and

[0034] Figs. 8a-c schematically show an example of a luminaire comprising a light and heat-generating module according to an embodiment of the present invention.

[0035] DETAILED DESCRIPTION

[0036] Fig. 1 schematically shows a light and heat-generating module 100. The light and heat-generating module 100 comprises a light emitting diode (LED) light source 110. Here, the LED light source 110 is exemplified as comprising eight separate units, but it should be noted that many different configurations of the LED light source 110 are feasible. The LED light source is arranged to emit LED light 120. The light and heat-generating module 100 comprises an (at least one) optical element 130 arranged in a downstream direction of the emitted LED light 120, and a plurality of heating elements 150 arranged to generate heat. During operation of the light and heat-generating module 100, the emitted LED light 120 is optically influenced by the optical element 130. The plurality of heating elements 150 is distributedly arranged within the optical element 130. Herein, the emitted LED light 120 may pass through the optical element 130 (and thus be optically influenced by the optical element 130), or be reflected back by the optical element 130. In other words, the optical element 130 may be arranged to reflect, transmit, diffuse and / or collimate, etc., the emitted LED light 120 from the (at least one) LED light source 110. The at least one LED light source 110 may be arranged on a carrier which, for example, may be a printed circuit board (PCB). Herein, the (at least one) LED light source 110 may be at least one of a LED, an array of LEDs, a LED filament, a matrix of LEDs, etc. Hence, the LED light source 110 may be a LED, an array(s) of LEDs, a / several LED filament(s), and / or a matrix / matrices of LEDs. Although the heating elements 150 are schematically illustrated as blocks in Fig. 1, the heating elements 150 may be any type of heating element, e.g., a wire wound element, a heat strip, or an etched foil element. It will be appreciated that a meandering single heating element intended to generate heat is herein comprised within the term “a plurality of heating elements”. This is as segments of the meandering single heating element may be considered as individual heating elements. In other words, a single heating element, suitable to be segmented, will be herein comprised within the term “a plurality of heating elements”. In an optional embodiment, the LED light source 110 may be thermally decoupled from the plurality of heating elements 150. In other words, the LED light source 110 will not be receiving thermal energy generated by the heating elements 150 during operation. For example, the LED light source may be a linear LED array. Such a linear LED array may be in an optional embodiment, aligned with a linear heating elements (e.g., heat stripes). Thus, in a further example, the plurality of LED light sources may be a plurality of linear LED arrays, and the plurality of heating elements may be linear heating elements. In the example, the plurality of linear LED arrays may be aligned with the plurality of linear heating elements. As shown the optical element 130 accommodating the plurality of heating elements 150 is rotatable 410 with respect to the LED light source 110. As further shown, at least a portion of heating elements 150a of the plurality of heating elements 150 are pivotable 420 with respect to the optical element 130 and with respect to a further portion 150b of the plurality of heating elements 150.

[0037] Fig. 2 schematically shows an embodiment of a light and heat-generating module 100. The plurality of heating elements 150 is arranged to direct thermal radiation 210 generated (i.e., emitted) by the plurality of heating elements 150 into a beam space 230. The at least one LED light source 110 is arranged outside of the beam space 230 of the thermal radiation 210. Additionally, Fig. 2 illustrates a further optional embodiment wherein the plurality of heating elements 150 is arranged in a plane, Pi. It will be appreciated that the thermal radiation 210 emitted by the plurality of heating elements 150 may be above a first threshold, e.g., a power threshold, (e.g., the power emitted is above 400W / m2) a heating element temperature threshold, (e.g., the thermal radiation 210 is emitted by a heating element 150 with a temperature above 90°C) or a wavelength threshold (e.g., the wavelength of the emitted radiation 210 is above 700 nm). In addition to this, or as an alternative, the thermal radiation 210 emitted may be below a second threshold, e.g., a heating element temperature threshold, (e.g., thermal radiation 210 is emitted from a heating element 150 with a temperature below 2200°C) and / or a wavelength threshold (e.g., wavelengths of emitted thermal radiation 210 is below 1 mm, or 3 pm).

[0038] Fig. 3a schematically shows an embodiment of a light and heat-generating module 100. The optical element 130, in which the plurality of heating elements 150 is arranged, is pivotably rotatable 410 with respect to the (at least one) LED light source 110. By the term “pivotably rotatable” here means the ability to pivot around a point. For example, for the optical element 130 may be configured to pivot around a point in relation to the LED light source 110. For example, a pivot may be formed by a joint that may be, a hinge joint, a ball-and socket joint, a saddle joint, or other suitable fastening means that enables a rotational motion. The rotatability of the optical element 130 in relation to the LED light source 110 may be rotating the optical element 130 along a first side (e.g., length) of the optical element 130, and alternatively, (or in addition to), along a second side (e.g., width) of the optical element 130.

[0039] Fig. 3b schematically shows the embodiment of Fig 3a from a side view perspective.

[0040] Fig. 4a schematically shows an embodiment of a light and heat-generating module 100. The optical element 130 at least partially encloses a LED light source 110 of the (at least one) LED light source 110. It will be appreciated that, in a further embodiment (for a plurality of optical elements 130), each optical element 130 of the (two or more / plurality of) optical element(s) 130 at least partially encloses a respective LED light source 110 of the at least one LED light source 110. Hence, each of the optical elements 130 partially and / or fully encloses a respective LED light source 110 of the one or more LED light source(s) 110. The light and heat-generating module 100 is circular shaped. The plurality of heating elements 150 is circular-arc shaped. It will be appreciated that in an alternative embodiment, the shape of the light and heat-generating module may be a quadrilateral. In such an optional embodiment, the heating elements 150 may be arranged in a straight shape. It will be appreciated that the components / parts of the heating elements 150 (e.g., the foil) may, for example, be meandering back and forth in a zig-zag pattern while the heating elements 150 are arranged in a straight shape. Yet, as shown in Fig. 4a the light and heat-generating module 100 comprises three circular optical elements 130, each accommodating a respective plurality of distributedly arranged heating elements 150, and concentrically arranged around a central axis, AC, extending through the LED light source 110. Each optical element is individually rotatable 410 about the central axis, AC, and for about 1 / 3 of its respective circular circumference provided with heating elements. By varying the mutual rotational orientation of the optical elements 130 the mutual positions of the heating elements and hence the heating profile provided by the plurality of heating elements can be varied.

[0041] Fig. 4b schematically shows the embodiment of Fig. 4a in cross-section from a side view perspective. The cross-section of the light and heat-generating module 100 is arcshaped, partially enclosing the LED light source 110. It will be appreciated that an alternative structure may be used. For example, a pyramid-shaped optical element would result in a trapezoid or triangular cross section. The heating elements 150 are circular-arc shaped when viewed from the bottom view, circling the LED light source 110. The heating elements 150 are situated at an angle (i.e., the angle is the angle between an imaginary plane extending perpendicular to the heating element 150 and a second imaginary plane extending perpendicular to the optical element 110, and in this embodiment the largest angle between the two planes arises at an angle of 90°, i.e., when the planes are perpendicular to each other) in relation to the LED light source 110 in their arrangement on the optical element 130. The further away from the LED light source 110 the heating element 150 is arranged, the greater the angle of the heating element 150 in relation to the LED light source.

[0042] Fig. 5a and Fig. 5b schematically show embodiments of a light and heatgenerating module 100. More specifically, the embodiments disclose the light and heatgenerating module 100 comprising an optical element 130 in the form of a lamp shade. The optical element 130 at least partially encloses a LED light source of the (at least one) LED light source 110. The plurality of heating elements 150 is arranged to form a structure within the at least one optical element 130 to optically influence the emitted LED light 120. In an example, the heating elements 150 are opaque, thereby stopping the emitted LED light 120 from the at least one LED light source 110 from passing through. In another example, the heating elements 150 are transparent, for example to a particular color / wavelength range of the emitted LED light 120 from the LED light source 110 (i.e., to particular wavelengths of the electromagnetic spectrum). As shown, the lamp shade (optical element 130) is rotatable 410 about a central axis, AC. The plurality of heating elements 150 here are provided over only half, i.e. 180 degrees, of the circumference of the lamp shade so that upon rotation of the lamp shade the direction of heat radiation can be changed without optically influencing the profile of the emitted LED light. This can be convenient, for example, when the light and heat-generating module is positioned close to a wall and one does not want to direct heat radiation to the wall. Fig. 6a schematically show an embodiment of a light and heat-generating module 100. The at least one LED light source 110 comprises a plurality of LED light sources 110 unevenly distributed on the at least one optical element 130. In a further, optional embodiment, the plurality of heating element 150 has a first concentration of heating elements 150 per volume unit in a portion 610 of the at least one optical element 130. That is, within a first area (i.e., portion), of the optical element 130, there is a first concentration of heating elements 150 arranged throughout that area, wherein the concentration is counted per volume unit within the first area. The plurality of LED light sources 110 has a second concentration of LED light sources 110 per volume unit on the portion 610 of the at least one optical element 130. The first concentration of heating elements 150 and the second concentration of LED light sources 110 are different. In a further, optional embodiment, the plurality of heating element 150 has a third concentration of heating elements 150 per volume unit in a second portion 620 of the at least one optical element 130, wherein the first concentration and the third concentration are different. Optionally, the optical element 130 may be a curved linear structure, thus enabling the light and heat-generating module 100 of the embodiment to provide a further advantage of enabling an improved directing of light and heat generated by the light and heat-generating module 100. Fig 6b illustrates an example of the embodiment disclosed in Fig 6a. Therein, for example, a user working at a work desk may desire a (highly) illuminated work desk, while also desiring heating from the heating elements 150. The embodiment enables the light to be directed mostly towards the desired area (the work desk) in that the majority (i.e., the second concentration) of the LED light sources 110 is arranged to illuminate the work desk. The majority (i.e., the first concentration) of the heating elements 150 is arranged to direct heat generated by the heating elements 150 onto the user. It may be further desirable to heat a part of the work space, as e.g. the arms of a user may be within the work space. Thus, a minority (e.g., the third concentration) of the heating elements 150 is arranged to direct heat generated by the heating elements 150 onto the work space.

[0043] Fig. 7a schematically shows an example of a light and heat-generating module 100. The at least one optical element 130 is arranged to reflect incident light back past the LED light source 110. The optical element 130, in which the plurality of heating elements 150 is arranged, is pivotably rotatable 410 with respect to the (at least one) LED light source 110.

[0044] Fig. 7b schematically shows an example of a light and heat-generating module 100. A plurality of LED light sources 110 is arranged on a flange or a portion extending perpendicular to the extension of the optical element 130. That is, the two or more LED light sources 110 are arranged to irradiate the optical element 130 from an angle. Optionally, there may be at least one member / element / structure 710 (e.g., a metal frame) extending in parallel to the direction of the emitted LED light 120 from the plurality of light sources 110, the member / element / structure 710 comprising a reflective member / layer, arranged so that the emitted LED light 120 is reflected onto the optical element 130, or an opaque member, arranged so that the emitted LED light 120 is (at least partially) blocked from emitting in a direction away from the optical element 130. Thus, a majority of the emitted LED light 120 may be incident upon the optical member 130 before entering a space intended for illumination by the emitted LED light 120. This is advantageous as the light and heatgenerating module 100 is thereby configured so that (most of) the emitted LED light 120 is influenced by the optical element 130. The optical element 130, in which the plurality of heating elements 150 is distributedly arranged, is divided in three optical element parts. A central optical element part 130a is fixed with respect to the (at least one) LED light source 110. Two outer optical element parts 130b, 130c are arranged on either side of the central optical part 130a and pivotably rotatable 410 with respect to the (at least one) LED light source 110. Hence, a first portion of the plurality of heating elements 150a is pivotable and / or rotatable with respect to a second portion of the plurality of heating elements 150b.

[0045] Figs. 8a-c schematically show examples of a luminaire 900 comprising a light and heat-generating module 100 according to embodiments of the present invention. The luminaire 900 may be an indoor luminaire, for example a wall panel, ceiling panel, a mounted ceiling light, etc. The luminaire 900 comprises a luminaire housing 910, wherein the luminaire housing 910 is arranged to at least partially enclose the light and heat-generating module 100.

[0046] Fig. 8a schematically shows an example of a wall panel luminaire 900 comprising a light and heat-generating module 100 according to one or more embodiments of the present invention. The wall panel luminaire 900 is arranged to be mounted on a flat surface, e.g., a wall, to enable the light and heat-generating module 100 to provide light and heat. The wall panel luminaire 900 may optionally comprise a controller 930 and an actuator 950 as described below.

[0047] Fig. 8b schematically shows an example of a ceiling panel luminaire 900 comprising a light and heat-generating module 100 according to one or more embodiments of the present invention. Fig. 8b shows a front view of the ceiling panel luminaire 900. The luminaire 900 comprises a luminaire housing 910 arranged to at least partially enclose the light and heat-generating module 100. The ceiling panel luminaire 900 may be configured to be arranged in a ceiling.

[0048] Fig. 8c schematically shows an example of a ceiling panel luminaire 900 comprising a light and heat-generating module 100 according to one or more embodiments of the present invention. Fig. 8b shows a bottom view of the ceiling panel luminaire 900.

[0049] Further, optional, embodiments are illustrated in Fig. 8a-c by dashed lines. For example, the luminaire 900 may further comprise a controller 930. The controller 930 is connected to the light and heat-generating module 100. The controller 930 may be connect to the light and heat generating module 100 by wires (i.e., wired to the light and heat generating module 100), alternatively the controller 930 may be wirelessly connected to the light and heat-generating module 100. The controller 930 is configured to control at least one of the emitted LED light 120 from the at least one LED light source 110 and the heat generated from the plurality of heating elements 150 of the light and heat-generating module 100. Hence, the controller 930 may be configured to control the emitted LED light 120 from the (at least one) LED light source 110 and / or the heat generated from the plurality of heating elements 150. The controller 930 is configured to provide a control based on at least one of an input received by the controller 930, and a predetermined setting. Hence, the controller 930 is configured to control the emitted LED light and / or the heat generated from the plurality of heating elements 150 based on an input received by the controller 930, and / or a predetermined setting. Herein, an input may be received using an input port (e.g., input / output port) arranged on the controller 930. The input may be received from a user, e.g., utilizing a wireless signal, (e.g., a user, sending a signal to the controller 930, using another node, e.g., a mobile phone, or a second controller wirelessly coupled to the controller 930) and / or a node coupled by wire to the controller 930 (e.g., a control panel configured to send electrical signals after input from one or more buttons arranged on the control panel), and / or a switch. Alternatively, or in addition to the control of the light and heat-generating module 100 by the controller 930, the control may be based upon a predetermined setting, e.g., a time, temperature threshold, noise threshold, or a detected motion (using e.g., a motion sensor), wherein the controller 930 may be arranged with a clock / timer, one or more thermometer, an infrared sensor, a microphone, a motion sensor, etc.

[0050] In a further, optional, embodiment illustrated in Figs. 8a-c, the luminaire(s) 900 comprise(s) an actuator 950. The actuator 950 is configured to rotate at least one of the at least one LED light source 110, the at least one optical element 130, and the plurality of heating elements 150 of the light and heat-generating module 100. Hence, the actuator 950 is configured / arranged to rotate (e.g., pivot), the (at least one) LED light source 110, the (at least one) optical element 130 and / or the plurality of heating elements 150 of the light and heat-generating module 100. The movement of the light and heat generating module 100 is, in an example, a rotational movement, and / or a tilting movement. Hence, in one exemplifying embodiment the actuator 950 is configured to rotate the light and heatgenerating module 100. The actuator may be substantially any device or element which is able to (mechanically and / or electrically) change the location / direction of the light and heatgenerating module 100. In an example, the actuator 950 is coupled to the controller 930, and the controller 930 is configured to control the actuator 950 for example by sending instructions to the actuator 950 to rotate an element (e.g., a LED light source 110, an optical element 130 and / or a heating element 150) of the light and heat-generating module 100.

[0051] The person skilled in the art realizes that the present invention by no means is limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims.

Claims

CLAIMS:

1. A light and heat-generating module (100), comprising at least one light emitting diode, LED, light source (110) arranged to emit LED light (120), at least one optical element (130) arranged in a downstream direction of the emitted LED light, wherein at least part of the emitted LED light is optically influenced by the at least one optical element, and a plurality of heating elements (150) arranged to generate heat, wherein the plurality of heating elements is distributedly arranged within the at least one optical element, and wherein at least one optical element is rotatable (410) with respect to the at least one LED light source such that at least a portion (150a) of the plurality of heating elements (150) are rotated.

2. The light and heat-generating module according to claim 1, wherein the plurality of heating elements is arranged to direct thermal radiation (210) generated by the plurality of heating elements into a beam space (230), wherein the at least one LED light source is arranged outside of the beam space of the thermal radiation.

3. The light and heat-generating module according to claim 1 or 2, wherein the plurality of heating elements is arranged in a plane, Pi.

4. The light and heat-generating module according to any one of the previous claims, wherein the at least one LED light source comprises a plurality of LEDs arranged in an array (310).

5. The light and heat-generating module according to any one of the previous claims, wherein the at least one heating element is accommodated in a respective one of the optical elements and is pivotable (420) with respect to said respective one of the optical elements.

6. The light and heat-generating module according any one of the previous claims, wherein each optical element of the at least one optical element at least partially encloses a respective LED light source of the at least one LED light source.

7. The light and heat-generating module according to any one of the previous claims, wherein the at least one optical element is arranged to, at least one of reflect, transmit, diffuse, and collimate, the emitted LED light.

8. The light and heat-generating module according to anyone of the previous claims, wherein the plurality of heating elements is arranged to form a structure within the at least one optical element to optically influence the emitted LED light.

9. The light and heat-generating module according to any one of the previous claims, wherein the at least one LED light source is thermally decoupled from the plurality of heating elements.

10. The light and heat-generating module according to any one of the previous claims, wherein the at least one LED light source comprises a plurality of LED light sources unevenly distributed on the at least one optical element.

11. The light and heat-generating module according to claim 10, wherein the plurality of heating elements has a first concentration of heating elements per volume unit in a portion (610) of the at least one optical element, and the plurality of LED light sources has a second concentration of LED light sources per volume unit on the portion of the at least one optical element, wherein the first concentration and the second concentration are different.

12. The light and heat-generating module according to any one of the previous claims, wherein the light and heat-generating module is arranged within a mountable panel.

13. A luminaire, comprising a light and heat-generating module (100) according to any one of the preceding claims, and a luminaire housing (910) arranged to at least partially enclose the light and heat generating module.

14. The luminaire according to claim 13, comprising a controller (930) connected to the light and heat-generating module, wherein the controller is configured to control at least one of the emitted LED light from the at least one LED light source, and the heat generated from the plurality of heating elements, based on at least one of an input received by the controller, and a predetermined setting.

15. The luminaire according to claim 13 or 14, comprising an actuator (950) configured to rotate at least one of the at least one LED light source, the at least one optical element, and the plurality of heating elements, of the light and heat-generating module.

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