WO2023131513A1 - Kit de luminaire - Google Patents

Kit de luminaire Download PDF

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Publication number
WO2023131513A1
WO2023131513A1 PCT/EP2022/086947 EP2022086947W WO2023131513A1 WO 2023131513 A1 WO2023131513 A1 WO 2023131513A1 EP 2022086947 W EP2022086947 W EP 2022086947W WO 2023131513 A1 WO2023131513 A1 WO 2023131513A1
Authority
WO
WIPO (PCT)
Prior art keywords
luminaire
light
reflector component
exit window
light exit
Prior art date
Application number
PCT/EP2022/086947
Other languages
English (en)
Inventor
Linggen MO
Yutao Li
Yong Joon HWANG
Xue Chen LI
Yue Hua ZHANG
Baojian LI
Original Assignee
Signify Holding B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Signify Holding B.V. filed Critical Signify Holding B.V.
Publication of WO2023131513A1 publication Critical patent/WO2023131513A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/041—Optical design with conical or pyramidal surface

Definitions

  • the present invention relates to the field of lighting, and in particular, to a luminaire kit including a cap accessory for a luminaire.
  • luminaires An area of growing interest in the field of lighting is the alteration of light projection from luminaires by modular accessories. Indeed, this may prove particularly advantageous for deep recessed spotlights/downlights.
  • Such luminaires typically provide light in a relatively narrow beam, leaving other surfaces un-illuminated, while providing harsh lighting for surfaces incident to the narrow beam.
  • the luminaire when the luminaire is a downlight directed from a ceiling towards a floor, the floor may be brightly lit while the ceiling and surrounding walls may be subject to little/no direct illumination. In some circumstances, it may be beneficial for some (or all) of the light to be directed toward the walls or ceiling. In this way, a desired ambient lighting effect may be obtained.
  • luminaire kit comprising: a luminaire including a light exit window through which light is emitted by the luminaire, wherein the light exit window is delimited by a front rim of the luminaire, and wherein the front rim is configured mounting the luminaire onto a surface; and a cap accessory for fitting to the front rim of the luminaire, the cap accessory being configured, when fitted, to completely cover the light exit window of the luminaire, and wherein the cap accessory comprises a reflector component having a width dimension that decreases in a direction extending toward the light exit window, and configured, when fitted, to reflect at least a part of the light emitted through the light exit window.
  • a luminaire kit may be considered as a set of lighting equipment/components that may be used to provide illumination.
  • modularity of the kit may be achieved (i.e. the cap accessory may be fitted or removed to the luminaire, and other similar luminaires).
  • a user may choose to fit the cap accessory to the luminaire, or to simply use the luminaire on its own. Accordingly, a suitable light distribution profile of the luminaire, considering the circumstances/scenario/environment of the luminaire may be chosen by the user.
  • the luminaire i.e. the lighting unit
  • a light exit window which may simply be an empty space through which light from a light generation element of the luminaire may pass-through, or a transparent/semi-transparent material.
  • the luminaire may be any lighting unit, such as a spotlight, or a downlight.
  • the luminaire is merely any device suitable for producing a light output through a light exit window.
  • a boundary/outline of the light exit window is defined (i.e. delimited) by a front rim of the luminaire.
  • the front rim is configured for mounting the luminaire onto a surface, such as a ceiling, wall, floor, or any other mountable surface.
  • the front rim may be any shape suitable for mounting to the surface.
  • the term "front” may be considered as any surface(s) of the luminaire by which light is emitted.
  • the cap accessory/attachment may be configured to fit to the front rim of the luminaire by any means known in the art.
  • the cap accessory may be capable of screwing, clamping, sticking, clipping, or any other means of fixedly attaching to the front rim of the luminaire.
  • the cap accessory When fitted, the cap accessory may cover all, or part of, the light exit window. In this way, the cap accessory may be configured to receive at least part of the light emitted through the light exit window when fitted to the luminaire.
  • Light received by (i.e. incident on) the cap accessory from the luminaire may be directed (directly, or via other reflective surfaces) to the reflector component of the cap accessory.
  • the reflector component is configured to reflect at least part of the emitted through the light exit window and received by the cap accessory. This reflection may be direct (i.e. the reflector component as a mirror), or via total internal reflection (TIR). That is, embodiments may be configured so that some of the light emitted through the light exit window is directly emitted to the environment/surroundings (and thus not incident on the reflector component when the cap accessory is fitted to the luminaire).
  • the reflector component may be at least partially light transmissive so that a part of light incident on the reflector component passes through the reflector component.
  • the reflector component may be semi-transparent, so that a part of the light incident on the reflector component is reflected and another part of the light incident on the reflector component is transmitted through the reflector component.
  • the reflector component may alter the light output characteristics of the luminaire, thus providing a lighting effect that is desirable in the circumstances.
  • the apex/peak of the reflector component may be configured to be positioned directly adjacent the centre of the light exit window (when fitted).
  • the apex/peak of the reflector component may be configured to be offset (laterally) from centre of the light exit window (when fitted).
  • a profile of a light output characteristic of the lighting device may be obtained according to the specific geometry of the reflector component.
  • the reflector component may be tapered as it approaches the light exit window a corresponding light output profile may be provided.
  • the width dimension at various distances from the light exit window may be chosen such that the output light is directed at desired angles.
  • Embodiments of the invention provide a luminaire kit comprising a luminaire and a cap accessory.
  • the cap accessory may be adapted to fit to a front rim of the luminaire, such that it at least partially covers a light exit window of the luminaire through which light is emitted. Some of the emitted light may be reflected by a reflector component of the cap accessory, while some of the light may be transmitted through the reflector component, or may be directly emitted by the luminaire.
  • the reflector component may be configured to have a width dimension that decreases in a direction extending toward the light exit window, thereby controlling the direction of reflected light. In this way, a light distribution of the luminaire may be altered and/or controlled, improving an ambient effect.
  • the reflector component may be configured to transmit part of the light emitted by the light exit window through the reflector component. In this way, not only may the light be emitted through the light exit window reflected by the reflector component, some of the light may be allowed through the reflector component. For instance, some of the light may be emitted by the lighting kit to an area below the reflector component with respect to the light exit window, thus ensuring even distribution of light.
  • the cap accessory may further comprise a cover provided over the reflector component.
  • the cover may be distal from the light exit window.
  • the cover may, for example, be provided on a surface of the reflector component (i.e. a base or outer surface of the reflector component), such that it is substantially flat, or it may be provided in the same shape as the reflector component. In other words, the cover may be provided distal from the light exit compared to the reflector component (i.e. on the bottom of the reflector component).
  • the cover may be an indivi dual/ distinct layer, or may be a coating on the surface of the reflector component.
  • the cover is configured for clamp fitting to the reflector component or to the side wall of the cap accessory. In this way, the cover may be fitted to/removed from the reflector component depending on the desired light output.
  • the cover may be translucent, and in other embodiments the cover may be opaque.
  • any light transmitted that is through the (semi-reflective) reflector component may be dispersed or diffused.
  • Translucent may mean that the cover transmits between 1-99% of incident light.
  • the cover may be a diffusive/scattering/milky white color. Accordingly, a homogenous light distribution may be obtained. This may be particularly advantageous in office or clinical environments, where uniform light levels are desirable.
  • the cover is opaque, light is prevented from passing through it. The light may instead be reflected back toward the reflector component, or may be absorbed by the cover.
  • an opaque cover When an opaque cover is provided, light projection through the cover is supressed, and thus light is only transmitted from the cap component via the non-covered portion(s) (e.g. side(s)) of the reflector component. This may be desirable in soft lighting situations (such as in a corridor, living room or bedroom), where lighting to the side of the luminaire is desirable. For example if the luminaire is mounted to a ceiling surface, the provision of an opaque cover may ensure that only the walls are directly illuminated, improving an ambient effect.
  • the decrease in the width dimension of the reflector component may be linear.
  • a lateral side of the reflector component may be substantially straight. This may be a simple geometry to manufacture, while still ensuring an altered light output profile.
  • the decrease in the width dimension of the reflector component may be non-linear.
  • the reflector component may therefore be employed in embodiments. When non-linear, a more even distribution of light output may be achieved in the range of light output directions required. In the case that the reflector component is substantially conical, this may mean that the reflector component has a convex or concave cone shape. Further, the reflector component may have a complex shape in order to provide a complex light output.
  • the width dimension of the reflector component may decrease in a direction extending toward the light exit window at a decreasing rate.
  • the reflector component may have a concave cone/pyramid/wedge shape. A lateral side of the reflector component may thus be concave.
  • the width dimension of the reflector component may decrease in a direction extending toward the light exit window at an increasing rate.
  • the reflector component may have a convex cone/pyramid/wedge shape. A lateral side of the reflector component may thus be convex.
  • the reflector component may be cone shaped, pyramid shaped, or wedge shaped.
  • Each of the cone shape, pyramid shape and wedge shape may have certain advantages.
  • a cone shape means that the base of the conical reflector may be substantially circular/round. Thus, the light from the light exit window may be reflected at substantially the same angle irrespective of which lateral side of the reflector it is incident upon.
  • a pyramid shape may mean that the base of the reflector component is polygonal. Thus, the light from the light exit window may be primarily reflected in an integer number of directions (i.e. dependent on the number of sides of the polygonal base).
  • a wedge shape may mean that the base of the reflector component is quadrilateral, and also that two lateral sides of the reflector component have a steeper slope than a different two sides.
  • Light output by the luminaire kit may thus be substantially in two directions corresponding to the different two sides, while less light/no light may be reflected from the lateral sides that are steeper.
  • the cap accessory may be further configured for clamp fitting to the front rim of the luminaire. This method of fitting the cap accessory may allow for easy fitting/detachment of the cap accessory/attachment.
  • modularity of the luminaire kit may be improved, and, in turn, ease of customisability by an end user may be improved.
  • the cap accessory may further comprise a light transmission portion surrounding at least part of the reflector component.
  • the light transmission portion may be a housing/casing for the reflector component. In this way, the light exit window of the luminaire and the reflector component may be encompassed by the light transmission portion.
  • the light transmission portion may provide protection of the reflector component and luminaire. In some embodiments, the light transmission portion may be transparent. Thus the light transmission portion may not affect the output light profile.
  • the reflector component may be formed from at least one of plastic or glass.
  • the luminaire may be a spotlight or a downlight.
  • a cap accessory for fitting to a front rim of a luminaire, the cap accessory being configured, when fitted, to completely cover a light exit window delimited by the front rim of the luminaire through which light is emitted by the luminaire.
  • the cap accessory comprises a reflector component having a width dimension that decreases in a direction extending toward the light exit window, and configured, when fitted, to reflect at least a part of the light emitted through the light exit window.
  • Fig. l is a schematic diagram of an assembled luminaire kit at a first isometric view according to an embodiment of the invention
  • Fig. 2 is a schematic diagram of an assembled luminaire kit at a second isometric view according to an embodiment of the invention
  • Fig. 3 is a schematic diagram of a cross section of an assembled luminaire kit according to an embodiment of the invention.
  • Fig. 4 is a schematic diagram of an exploded view of a luminaire kit according to an embodiment of the invention.
  • Fig. 5 depicts a simplified side cross-section of an assembled luminaire kit, including a luminaire and a cap accessory according to an embodiment of the invention
  • Figs. 6A to 6F present a number of simplified side profiles of the reflector component according to an aspect of various embodiments of the invention.
  • Fig. 7 depicts a simplified side cross-section of an assembled luminaire kit, including a luminaire and a cap accessory having a translucent cover according to yet another embodiment of the invention
  • Fig. 8 depicts a simplified side cross-section of an assembled luminaire kit, including a luminaire and a cap accessory having an opaque cover according a further embodiment of the invention.
  • Embodiments of the invention provide a luminaire kit comprising a luminaire and a cap accessory.
  • the cap accessory comprises a reflector component configured to reflect part of the light emitted via a light exit window, when fitted to the luminaire.
  • a photometric/light pattern of light emitted by the luminaire when the reflector component is fitted is shaped such that a width dimension of the reflector component decreases in a direction extending toward the light exit window.
  • a special lighting pattern may be produced for an ambient effect, or decorative purposes.
  • the distribution of light from a luminaire may be altered by a cap accessory that is fitted over the light exit window of the luminaire.
  • the cap accessory to include a reflector component that, when the cap is fitted to the luminaire, is configured to reflect part of the light emitted from the light exit portion. Another part of the light may be emitted normally, e.g. by passing by the side of the reflector and not being reflected. Also, some of the light may be transmitted through the reflector, i.e. the reflector component may be at least partially light transmissive.
  • the reflector may have a generally-conical shape that decreases in width towards the exit portion of the luminaire (when the cap is fitted), i.e. decreases in width from its base (more distant from the light exit window of the luminaire) to its apex (closer to the light exit window).
  • This configuration of the reflector provides sloped or angled reflective sides (relative to the light emission direction of the luminaire) which alter the light emission path so that emitted light of the luminaire is reflected and spread outwards and/or backwards.
  • the reflector component may have a linear cone shape, a concave cone shape, a pyramid shape, etc.
  • a light profile of a luminaire may thus be altered by the provision of a cap accessory, the cap including a reflector. In this way, some light may be reflected outwards to the side (reducing glare) and/or some light may be reflected back toward the support surface (e.g. ceiling or wall) within which the luminaire is provided, thus improving an ambient effect.
  • a cap accessory the cap including a reflector. In this way, some light may be reflected outwards to the side (reducing glare) and/or some light may be reflected back toward the support surface (e.g. ceiling or wall) within which the luminaire is provided, thus improving an ambient effect.
  • the luminaire has a light exit window delimited by a front rim, with the front rim adapted to mount the luminaire to a surface (ceiling, wall, floor, furniture, etc.).
  • the cap accessory/ attachment is configured to fit to the front rim of the luminaire. Accordingly, the cap attachment may be attachable and removable from the luminaire, such that it may be attached according to a user's needs. This modularity facilitates user control over the lighting profile that may be acquired from the luminaire.
  • the reflector component may be employed in different embodiments, e.g. according to user preference or usage circumstances.
  • the reflector component may have a shape that reflects some of the light from the luminaire back toward the ceiling.
  • Other shapes may reflect light toward walls.
  • some embodiments of the invention may be configured to provide a homogenous light output from a luminaire that usually produces light in a (relatively) narrow beam.
  • Fig. 1, 2, 3 and 4 present a schematic for a luminaire kit 100 according to an embodiment of the invention at a first isometric view, a second isometric view, a cross-section view, and an exploded view, respectively.
  • the schematic drawings present a luminaire 10, including a light exit window 20 and a front rim 15.
  • the light exit window 20 is delimited by the front rim 15, and the front rim 15 is configured for mounting the luminaire 10 to a surface 80 (wall, ceiling, etc.).
  • a cap accessory 30 suitable for fitting to the front rim 15 of the luminaire 10.
  • the fitting of the cap accessory to the luminaire 10 is performed by a clamping component 70.
  • the fitting may be performed by threading, clipping, etc.
  • the cap accessory 30 comprises a reflector component 40.
  • the reflector component 40 has a width dimension that decreases in a direction extending toward the light exit window 20.
  • the reflector component 40 is a cone shape, having concave side walls. In this way, at least part (some) of the light from emitted through the light exit window 20 (from the luminaire 10) is reflected, when the cap accessory is fitted to the front rim 15 of the luminaire 10.
  • part of the light may be transmitted/refracted through the reflector component 40. In other cases, part of the light may experience total internal reflection, such that it is emitted to a side of the cap accessory. Thus, light emission characteristics of the luminaire 10 may be altered/augmented.
  • the embodiment of the cap accessory shown comprises a cover 60 provided over the reflector component 40 (i.e. on a base, and on an opposite side of the reflector component 40 to the light exit window 20).
  • the cover 60 may be used to further alter/augment the light from the light exit window 20.
  • the cover 60 may be opaque, meaning that light originally incident to a surface (opposite to the surface 80 upon which the luminaire 10 is mounted) may not be illuminated.
  • the cover 60 may be translucent (e.g a diffusive white). In this case, light incident to the cover 60 (i.e. transmitted through the reflector component 40) may be dispersed, resulting in homogenous lighting of the surface opposite to the surface 80 upon which the luminaire 10 is mounted.
  • a light transmission portion 50 is presented by the figures.
  • the light transmission portion 50 may act as a housing of the cap accessory.
  • the light transmission portion 50 may be transparent.
  • Fig. 5 there is presented a simplified representation of an assembled luminaire kit 100, including a luminaire 10 and a cap accessory 30, according to an embodiment of the invention.
  • the luminaire 10 comprises a front rim 15, and a light exit window 20 delimited by the front rim 15.
  • the luminaire 10 may be a spotlight, a deep recessed downlight, or any other lighting device known to the skilled person that may have (or be adapted to have) a light exit window 20 delimited by a front rim 15.
  • the front rim 15 is suitable/adapted for mounting the luminaire 10 to a surface 80 (floor, ceiling, wall, furniture, etc.). This may be achieved by any known means for fixing a luminaire 10 to a surface known in the art.
  • the front rim 15 may be adapted to screw, clip, clamp or stick the luminaire 10 to the surface 80.
  • the luminaire 10 is fitted to the surface 80 by a clamping device 70.
  • the light exit window 20 may be any surface of the luminaire 10 from which light is emitted by the luminaire 10.
  • the light exit window 20 may be formed of a transparent material (glass, plastic, etc.), or may merely be a space/gap absent of solid material.
  • the light exit window 20 is shown as a flat layer.
  • the light exit window 20 is not limited to this geometry. Indeed, the light exit window 20 may be curved, or otherwise textured.
  • the cap accessory 30 When fitted (as shown in Fig. 5), the cap accessory 30 covers the light exit window 20 of the luminaire 10.
  • the cap accessory 30 is thus configured to receive at least part of the light emitted from the light exit window 20 when fitted.
  • the cap accessory 30 completely covers the light exit window 20.
  • the cap accessory 30 may only partially cover the light exit window 20 when fitted.
  • the cap accessory 30 is configured for fitting to the front rim 15 of the luminaire so that it may be attached and detached from the luminaire 10, by way of the front rim 15. This may be achieved, for example, by screwing, clamping, clipping, sticking, or otherwise fitting the cap accessory 30 to the front rim 15. Indeed, in the depicted embodiment of Fig. 5, the cap accessory 30 is configured for clamp fitting to the front rim 15 of the luminaire. This may be achieved in any manner known in the art.
  • the cap accessory 30 comprises a reflector component 40.
  • the reflector component 40 is configured to reflect a first part LI of the light emitted through the light exit window 20. This may be because the reflector component provided is an (at least) partially reflective mirror, or due to total internal reflection (TIR).
  • TIR total internal reflection
  • a second part L2 of the light is emitted from the light exit window 20 and out of the cap accessory 30 without being incident on the reflector component 40.
  • a third part L3 of the light is transmitted through the reflector component 40.
  • the reflector component 40 is spaced apart from the light exit window 20.
  • a central axis of the reflector component 40 is aligned with a central axis of the light exit window 20.
  • the reflector component 40 may be provided out of line with the centre of the light exit window 20 and/or angled with respect to the light exit window 20.
  • the reflector component 40 is formed from a plastic material. However, it may alternatively be formed from glass or any other suitable material or composite.
  • a shape of the reflector component 40 is selected such that desirable light output characteristics are obtained. For example, it may be desirable to reflect some light back to the surface 80 upon which the luminaire 10 is mounted, as well as to reflect light to other surfaces, and perhaps allow other light to be dispersed through the reflector component 30.
  • the reflector component 40 has a width dimension W that decreases in a direction extending toward the light exit window 20. In other words, the reflector component 40 is tapered toward the light exit window 20. Possible shapes of the reflector component 40 will be discussed in more detail with reference to Figs. 6A - 6F below.
  • the photometric/light pattern of the luminaire 10 may be changed. Accordingly, the same luminaire 10 may fulfil multiple different lighting requirements by being fit with, or not fit with, the cap accessory 30, or by fitting alternative cap accessories.
  • the cap accessory 30 further comprises a light transmission portion 50 surrounding at least part of the reflector component 40.
  • the reflector component 40 is housed/contained within the light transmission portion 50.
  • the light transmission portion 50 may thus protect the reflector component 40.
  • the light transmission portion 50 is transparent, such that it may not affect the light output characteristics of the luminaire 10 and cap accessory 30 device.
  • Figs. 6A to 6F present cross sections of a number of different reflector components 40 according to proposed embodiments.
  • Each reflector component 40 depicted may provide a different reflected light output given equivalent incident light.
  • each reflector component 40 has a width dimension W that decreases in a direction extending toward the light exit window 20 (in an upwards direction from its base to its apex/peak).
  • Fig. 6A presents an embodiment where a width W decreases linearly in a direction extending toward the light exit window 20.
  • a suitable reflected light output may be determined by simple experimentation of different slopes of the lateral side 142 of the reflector component 40.
  • Fig. 6B presents a reflector component 40 having a candle-like shape, wherein the width W of the reflector component 40 decreases non-linearly in a direction extending toward the light exit window 20. In this case, the width W decreases at a decreasing rate in a direction extending toward the light window 20, leading to a point at the apex of the reflector component 40 (at the tip of a concave curve).
  • the curve of the lateral side 142 may be adapted to achieve desirable reflected light output characteristics. Overall, the concave curve as shown in Fig. 6B may produce a narrower dispersal of light than the straight lateral 142 side of Fig. 6A.
  • the slope of the curve may be adapted such that some of the reflected light is incident on the surface 80 upon which the luminaire 10 is mounted. This may produce an ambient effect.
  • Fig. 6C also presents a reflector component 40 having a width W that decreases non-linearly in a direction extending toward the light exit window 20.
  • the width W increases at a decreasing rate in a direction extending toward the light exit window 20, leading to a point at the apex of the reflector component 40 (at the tip of a convex curve). This may reflect light is a wider dispersal range than the straight lateral side 142 of Fig. 6A.
  • Fig. 6D presents a reflector component 40 having a width W that decreases linearly in a direction extending toward the light exit window 20, but has a plateau. This may allow more light to be transmitted through the reflector component 40, while still reflecting some light to the sides.
  • Fig. 6E presents a reflector component 40 similar to Fig. 6A.
  • the different lateral sides 142 of the reflector component 40 have different slopes. In this case, this may mean that more light is reflected and output on a left side of the reflector component 40, than on the right side of the reflector component 40.
  • Fig. 6F presents a reflector component 40 similar to Fig. 6E. However, in this case light reflection and emission to the left hand side may be effectively supressed, outputting all light in a range to the right of the reflector component 40.
  • the reflector component 40 may comprise any combination of features of the above cross-sectional shapes. Indeed, multiple cross sections of a reflector component 40 may be taken at various angles around the axis of the reflector component 40, and may vary depending on the angle.
  • a cross section of a reflector component 40 at a first angle may be similar to Fig. 6A, and a cross section taken of the same reflector component 40 at a second angle (e.g. 90° from the first angle) may be similar to Fig. 6B.
  • This may result in an inhomogeneous light output, which may be preferable in some scenarios /circumstances /environments.
  • the reflector component 40 may be provided in a conical, pyramidal or wedge-like shape. This may provide the different light output characteristics at different angles from the axis of the reflector component. Various shapes or combinations of shapes may thus be employed according to requirements.
  • FIG. 7 there is presented a simplified representation of an assembled luminaire kit 100, similar to the assembled luminaire kit 100 of Fig. 5, with the addition of a cover 60a. Further description of the luminaire 10, light exit window 20, front rim 15, cap accessory 30, light transmission portion 50, and reflector component 40 are omitted here, for the sake of conciseness, as they may be consider substantially similar to those described in reference to Fig. 5.
  • the cover 60a is provided over the reflector component 40 (i.e. on a base of the reflector component 40) opposite the light exit window 20. In other words, the cover 60a is provided distal to the light exit window 20 relative to the reflector component 50.
  • the cover 60a may be provided on a base of the reflector component 40, or may be spaced away from the reflector component 40.
  • the cover 60a may be solid, or semi-transparent (i.e. l%-100% opaque). In the case of the cover 60a shown in Fig. 7, the cover 60a is semi-transparent.
  • the cover 60a may be an opal white color (diffusive).
  • the cover 60a is semi-transparent (i.e. translucent)
  • light transmitted L3 through the reflector component, and incident to the cover may be dispersed by the cover 60a.
  • light L3 may be emitted in a homogenous manner.
  • This profile of light may be beneficial in many scenarios, especially where a uniform distribution of light is desired (e.g. a clinical or office setting).
  • the cover 60b may be opaque. In this case, none of the light L3 transmitted through the reflector component 240 may be emitted through the cover. As a result, the light profile of the emitted light may exhibit a "batwing" shape. In other words, light from the luminaire 10 may only be output to the sides of the reflector component 40, reflected to the sides of the reflector component 40, and/or reflected back to a mounted surface 80 of the luminaire 10 (i.e. an up-lighting effect, when the surface 80 is a ceiling). Overall, the opaque (black) cover 60b may produce an ambient effect, focussing illumination toward the sides and back toward the surface 80 mounted by the luminaire 10.
  • the cover 60 may be configured for clamp fitting to the reflector component 40 or to the side wall of the cap accessory 30.
  • the cover 60 may be fitted to the cap accessory 30 using any known method in the art.
  • the cover 60 may be screwed, clipped, etc. to the cap accessory 30. In this way, the cover 60 may be added/removed according to user needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Un kit de luminaire (100) comprend : un luminaire (10) comprenant une fenêtre de sortie de lumière (20) par l'intermédiaire de laquelle la lumière est émise par le luminaire, la fenêtre de sortie de lumière étant délimitée par un rebord avant (15) du luminaire, et le rebord avant étant conçu pour monter le luminaire sur une surface (80) ; et un accessoire de protection (30) se montant sur le bord avant du luminaire, l'accessoire de protection étant conçu, lorsqu'il est monté, pour recouvrir complètement la fenêtre de sortie de lumière du luminaire, et l'accessoire de protection comprenant un composant réflecteur (40) ayant une dimension en largeur (W) qui diminue dans une direction s'étendant vers la fenêtre de sortie de lumière, et étant conçu, lorsqu'il est monté, pour réfléchir au moins une partie de la lumière émise par la fenêtre de sortie de lumière ; un sommet du composant réflecteur (40) étant conçu pour être positionné directement adjacent au centre de la fenêtre de sortie de lumière lorsque l'accessoire de protection (30) est monté sur le luminaire.
PCT/EP2022/086947 2022-01-04 2022-12-20 Kit de luminaire WO2023131513A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CNPCT/CN2022/070169 2022-01-04
CN2022070169 2022-01-04
EP22159469.0 2022-03-01
EP22159469 2022-03-01

Publications (1)

Publication Number Publication Date
WO2023131513A1 true WO2023131513A1 (fr) 2023-07-13

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Application Number Title Priority Date Filing Date
PCT/EP2022/086947 WO2023131513A1 (fr) 2022-01-04 2022-12-20 Kit de luminaire

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Country Link
WO (1) WO2023131513A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404695A (en) * 1932-07-21 1934-01-22 George Victor Downer Improvements in or relating to illuminating devices
WO1987005680A1 (fr) * 1986-03-14 1987-09-24 Solar Armaturproduktion A/S Luminaire
DE3737324A1 (de) * 1987-10-30 1989-05-11 Scholz & Kronberg Produktions Tiefstrahlende direktleuchte
EP1072840A2 (fr) * 1999-07-29 2001-01-31 Christian Bartenbach Luminaire
DE10318330B3 (de) * 2003-04-19 2005-01-20 Hensel Studiotechnik Gmbh & Co. Kg Lichtverteilvorsatz für einen Stufenlinsenscheinwerfer
EP2221525A2 (fr) * 2009-02-18 2010-08-25 Yunzhao Liu Lampe portable avec corps de source lumineuse échangeable
EP2644976A1 (fr) * 2012-03-29 2013-10-02 Siteco Beleuchtungstechnik GmbH Lampe avec éclairage périphérique
EP3767166A1 (fr) * 2018-03-16 2021-01-20 Antares Iluminación, S.A.U. Système optique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404695A (en) * 1932-07-21 1934-01-22 George Victor Downer Improvements in or relating to illuminating devices
WO1987005680A1 (fr) * 1986-03-14 1987-09-24 Solar Armaturproduktion A/S Luminaire
DE3737324A1 (de) * 1987-10-30 1989-05-11 Scholz & Kronberg Produktions Tiefstrahlende direktleuchte
EP1072840A2 (fr) * 1999-07-29 2001-01-31 Christian Bartenbach Luminaire
DE10318330B3 (de) * 2003-04-19 2005-01-20 Hensel Studiotechnik Gmbh & Co. Kg Lichtverteilvorsatz für einen Stufenlinsenscheinwerfer
EP2221525A2 (fr) * 2009-02-18 2010-08-25 Yunzhao Liu Lampe portable avec corps de source lumineuse échangeable
EP2644976A1 (fr) * 2012-03-29 2013-10-02 Siteco Beleuchtungstechnik GmbH Lampe avec éclairage périphérique
EP3767166A1 (fr) * 2018-03-16 2021-01-20 Antares Iluminación, S.A.U. Système optique

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