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WO2020057956A1 - Appareil d'éclairage encastré réglable - Google Patents

Appareil d'éclairage encastré réglable Download PDF

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Publication number
WO2020057956A1
WO2020057956A1 PCT/EP2019/073405 EP2019073405W WO2020057956A1 WO 2020057956 A1 WO2020057956 A1 WO 2020057956A1 EP 2019073405 W EP2019073405 W EP 2019073405W WO 2020057956 A1 WO2020057956 A1 WO 2020057956A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
lighting apparatus
optical cup
recessed lighting
optical
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2019/073405
Other languages
English (en)
Inventor
Mark Owen JONES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signify Holding BV
Original Assignee
Signify Holding BV
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 BV filed Critical Signify Holding BV
Publication of WO2020057956A1 publication Critical patent/WO2020057956A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present disclosure is directed generally to lighting. More particularly, various embodiments disclosed herein relate to adjustable recessed lighting apparatus with obliquely-angled heat sinks.
  • LEDs light-emitting diodes
  • Functional advantages and benefits of LEDs include high energy conversion and optical efficiency, durability, lower operating costs, and many others.
  • Recent advances in LED technology have provided efficient and robust full- spectrum lighting sources that enable a variety of lighting effects in many applications.
  • Some of the fixtures embodying these sources feature a lighting module, including one or more LEDs capable of producing different colors, e.g., red, green, and blue, as well as a processor for independently controlling the output of the LEDs in order to generate a variety of colors and color-changing lighting effects, for example, as discussed in detail in U.S. Patent Nos. 6,016,038 and 6,211,626, incorporated herein by reference.
  • Adjustable recessed lighting units are used to aim light at objects or certain areas.
  • Some adjustable recessed lighting units include one or more LED emitters.
  • Many LEDs include heat sinks that are designed to draw heat generated by the LED emitter(s) away, e.g., so that the heat can be dissipated in the environment.
  • Heat sinks often include a series of heat-conducting“ribs” or“fins” constructed with various types of metals. In cases in which the LED emitter(s) generate a relatively large amount of heat, the accompanying heat sinks may be rather large.
  • An optical cup may include an optical element—such as one or more lenses or an open space defined by one or more interior reflective surfaces— that is designed to direct electromagnetic radiation (i.e. light) emitted by the LED emitter(s) in a particular direction.
  • the optical cup has a cup or cone shape that defines a central axis that is parallel to (typically coaxial with) the direction in which the optical cup induces the electromagnetic radiation.
  • the heat sink typically extends from the optical cup in the opposite direction, i.e. parallel to the central axis defined by the optical cone in a direction away from the emitted light.
  • a relatively large heat sink that extends straight from a back of the optical cone as described previously may limit how much the optical cone can be angled, e.g., because of space constraints in the ceiling or a pre- installed compartment. Additionally, suppose the optical cone is rotatable about its central axis. If the optical cone is tilted to a relatively large degree, , e.g., forty five degrees, a relatively large heat sink extending straight from the back of the optical cone imposes a large rotation radius as the optical cone is rotated. This may impose a requirement that a preinstalled compartment for the optical cone and its heat sink be relatively large, which again may not be ideal in a constrained space.
  • the heat sink may be substantially offset from a center of gravity of the recessed adjustable lighting unit as a whole, putting strain on various mechanical components that secure the recessed adjustable lighting unit to building structure.
  • an adjustable recessed lighting apparatus may include an optical cone with a first end and a second end.
  • a central axis (“CA” in the figures) of the optical cone may extend from the first end to the second end along its center.
  • a heat sink assembly may be thermally coupled with one or more LEDs (or other types of heat-generating light sources) at the first end of the optical cup, and may extend from the first end of the optical cup in a direction away from the second end of the optical cup.
  • the heat sink assembly which may include, for instance, a plurality of thermally-conductive ribs or fins, may be oriented at an oblique angle relative to the central axis of the optical cup, rather than in line with the central axis.
  • the optical cone may be tilted in various directions to a greater degree while occupying less of a constrained space in which recessed lighting apparatus are typically installed.
  • the heat sink assembly due to its oblique angle relative to the central axis of the optical cup, when the optical cup is tilted away from straight up and down, the heat sink assembly is more closely aligned with a center of gravity of the adjustable recessed lighting apparatus, reducing strain on various components.
  • the oblique angle between the lighting cone and the heat sink allows for the lighting cone to be rotated about its central axis while requiring less rotational radius for the heat sink than would be required with conventional lighting apparatus in which the heat sink extends along the central axis of the optical cone.
  • an adjustable recessed lighting apparatus may include: a housing that is pivotally mounted to a base structure; at least one light emitting diode (“LED”) mounted to a front side of a substrate; an optical cup fixedly contained within the housing and luminously coupled with the at least one LED at a first end of the optical cup, wherein the optical cup includes one or more optical elements configured to direct at least some light emitted by the at least one LED from the first end of the optical cup towards a second end of the optical cup along a central axis of the optical cup; and a heat sink assembly thermally coupled with the at least one LED, wherein the heat sink assembly includes a plurality of parallel fins that extend away from the first and second ends of the optical cup at an oblique angle relative to the central axis of the optical cup.
  • LED light emitting diode
  • the base structure may include a first ring that is rotatably mounted to a second ring.
  • rotation of the first ring may rotate the housing about an axis of rotation of the first ring.
  • the housing may be pivotally mounted to the first ring via a hinge.
  • the oblique angle may be between 20° and 25°. Lor example, in various embodiments, the oblique angle may be approximately 22.5°.
  • the housing may include a lateral surface extending across the housing orthogonal to the central axis of the optical cup.
  • the first end of the optical cup may be mounted on a first side of the lateral surface.
  • the plurality of fins may extend from a second side of the lateral surface.
  • the plurality of fins may extend obliquely from the second side of the lateral surface.
  • the plurality of fins and the housing may form a unitary component, and the plurality of fins may protrude obliquely from the second side of the lateral surface.
  • the housing may include six exterior surfaces such that the housing has a side profile with a substantially hexagonal shape.
  • the lateral surface may extend between a point along one of the six side surfaces to an intersection between two others of the six side surfaces.
  • the plurality of fins may extend parallel to a diameter of the substantially hexagonal shape, and the central axis of the optical cup is oblique to the diameter of the substantially hexagonal shape.
  • an adjustable recessed lighting apparatus may include: a housing that is pivotally and rotatably mounted to a base structure; at least one light source mounted to a front side of a substrate; an optical cup fixedly contained within the housing and luminously coupled with the at least one light source at a first end of the optical cup, wherein the optical cup includes one or more optical elements configured to direct at least some light emitted by the at least one light source from the first end of the optical cup towards a second end of the optical cup along a central axis of the optical cup; and a heat sink assembly thermally coupled with the at least one light source, wherein the heat sink assembly extends away from the first and second ends of the optical cup at an oblique angle relative to the central axis of the optical cup.
  • LED should be understood to include any electroluminescent diode or other type of carrier
  • the term LED includes, but is not limited to, various semiconductor- based structures that emit light in response to current, light emitting polymers, organic light emitting diodes (OLEDs), electroluminescent strips, and the like.
  • LED refers to light emitting diodes of all types (including semi-conductor and organic light emitting diodes).
  • an LED does not limit the physical and/or electrical package type of an LED.
  • an LED may refer to a single light emitting device having multiple dies that are configured to respectively emit different spectra of radiation (e.g., that may or may not be individually controllable).
  • an LED may be associated with a phosphor that is considered as an integral part of the LED (e.g., some types of white LEDs).
  • the term LED may refer to packaged LEDs, non-packaged LEDs, surface mount LEDs, chip-on-board LEDs, T-package mount LEDs, radial package LEDs, power package LEDs, LEDs including some type of encasement and/or optical element (e.g., a diffusing lens), etc.
  • light source should be understood to refer to any one or more of a variety of radiation sources, including, but not limited to, LED-based sources (including one or more LEDs as defined above), incandescent sources (e.g., filament lamps, halogen lamps), fluorescent sources, phosphorescent sources, high-intensity discharge sources (e.g., sodium vapor, mercury vapor, and metal halide lamps), lasers, other types of electroluminescent sources, pyro-luminescent sources (e.g., flames), candle-luminescent sources (e.g., gas mantles, carbon arc radiation sources), photo-luminescent sources (e.g., gaseous discharge sources), cathode luminescent sources using electronic satiation, galvano-luminescent sources, crystallo-luminescent sources, kine-luminescent sources, thermo-luminescent sources, triboluminescent sources, sonoluminescent sources, radioluminescent sources, and luminescent polymers.
  • LED-based sources including one or more
  • the term“lighting fixture” is used herein to refer to an implementation or arrangement of one or more lighting units in a particular form factor, assembly, or package.
  • the term“lighting unit” is used herein to refer to an apparatus including one or more light sources of same or different types.
  • a given lighting unit may have any one of a variety of mounting arrangements for the light source(s), enclosure/housing arrangements and shapes, and/or electrical and mechanical connection configurations. Additionally, a given lighting unit optionally may be associated with (e.g., include, be coupled to and/or packaged together with) various other components (e.g., control circuitry) relating to the operation of the light source(s).
  • An“LED-based lighting unit” refers to a lighting unit that includes one or more LED-based light sources as discussed above, alone or in combination with other non LED- based light sources.
  • A“multi-channel” lighting unit refers to an LED-based or non LED- based lighting unit that includes at least two light sources configured to respectively generate different spectrums of radiation, wherein each different source spectrum may be referred to as a“channel” of the multi-channel lighting unit.
  • Fig. 1 illustrates a perspective view of a recessed lighting apparatus configured with selected aspects of the present disclosure, in accordance with various embodiments.
  • Fig. 2 illustrates a perspective cross-sectional view of a recessed lighting apparatus configured with selected aspects of the present disclosure, in accordance with various embodiments.
  • Fig. 3 illustrates a perspective view from underneath a recessed lighting apparatus configured with selected aspects of the present disclosure, in accordance with various embodiments.
  • Fig. 4 illustrates an exploded view of components of a recessed lighting apparatus configured with selected aspects of the present disclosure, in accordance with various embodiments.
  • Fig. 5 illustrates a cross-sectional view of a recessed lighting apparatus configured with selected aspects of the present disclosure, in a first configuration, in accordance with various embodiments.
  • Fig. 6 illustrates a cross-sectional view of a recessed lighting apparatus configured with selected aspects of the present disclosure, in a second, tilted configuration, in accordance with various embodiments.
  • Fig. 7 illustrates a cross-sectional view of a recessed lighting apparatus configured with selected aspects of the present disclosure, in a third, tilted configuration, in accordance with various embodiments.
  • Adjustable recessed lighting units are used to aim light at objects or certain areas.
  • Some adjustable recessed lighting units include one or more FED emitters.
  • Many FEDs include heat sinks that are designed to draw heat generated by the FED emitter(s) away, e.g., so that the heat can be dissipated in the environment.
  • Heat sinks often include a series of heat-conducting“ribs” or“fins” constructed with various types of metals. In cases in which the LED emitter(s) generate a relatively large amount of heat, the accompanying heat sinks may be rather large.
  • An optical cup may include an optical element—such as one or more lenses or an open space defined by one or more interior reflective surfaces— that is designed to direct electromagnetic radiation (i.e. light) emitted by the LED emitter(s) in a particular direction.
  • the optical cup has a cup or cone shape that defines a central axis that is parallel to (typically coaxial with) the direction in which the optical cup induces the electromagnetic radiation.
  • the heat sink typically extends from the optical cup in the opposite direction, i.e. parallel to the central axis defined by the optical cone in a direction away from the emitted light.
  • a relatively large heat sink that extends straight from a back of the optical cone as described previously may limit how much the optical cone can be angled, e.g., because of space constraints in the ceiling or a pre- installed compartment. Additionally, suppose the optical cone is rotatable about its central axis. If the optical cone is tilted to a relatively large degree, , e.g., forty five degrees, a relatively large heat sink extending straight from the back of the optical cone imposes a large rotation radius as the optical cone is rotated. This may impose a requirement that a preinstalled compartment for the optical cone and its heat sink be relatively large, which again may not be ideal in a constrained space.
  • the heat sink may be substantially offset from a center of gravity of the recessed adjustable lighting unit as a whole, putting strain on various mechanical components that secure the recessed adjustable lighting unit to building structure.
  • various embodiments and implementations of the present disclosure are directed to adjustable recessed lighting apparatus with obliquely angled heat sinks/heat sink assemblies.
  • an adjustable recessed lighting apparatus 100 includes a housing 102 pivotally mounted (directly or indirectly) to a platform 104.
  • Platform 104 may be designed to be placed, for instance, on a top surface (not depicted) of a ceiling (e.g., sheet rock).
  • platform 104 may be secured to the top surface of the ceiling by way of one or more fastening elements, such as drywall screws, nails, staples, etc.
  • apparatus 100 may also include a bottom flange 110 that is configured for placement on a bottom surface of a ceiling, e.g., the surface that is visible from below. While botom flange 110 is depicted in Fig. 1 as being circular, this is not meant to be limiting. In other embodiments, bottom flange 110 may have other shapes or be omitted.
  • housing 102 may be pivotally mounted to a top ring 106, e.g. by way of a hinge 126.
  • top ring 106 may be rotatably mounted to a bottom ring 108, e.g., so that top ring 106 (and hence, housing 102) may be rotated as much as 360° about a central axis (not depicted) of bottom flange 110.
  • Housing 102 may include, e.g., contained within or as an integral part thereof, a plurality of fins 122 that form part of a heat sink assembly 121, wherein the heat sink assembly 121 pivots along with or in conjunction with the housing 102.
  • Fins 122 may be constructed with thermally conductive materials such as various types of metals.
  • Fig. 2 is a cross-sectional view of the apparatus 100 of Figs. 1 and 3.
  • an optical cup 112 is luminously coupled to one or more LEDs 118 at a first end 114 of optical cup 112. Consequently, optical cup 112 directs light emitted by one or more LEDs 118 in a direction from first end 114 of optical cup towards a second end 116 of optical cup, e.g., in a direction that is parallel to (e.g., coaxial with) a central axis CA of optical cup 112.
  • optical cup 112 may come in various forms.
  • optical cup 112 may include an interior 117 (also visible in Fig. 3) that is at least partially filled with material such as plastic or glass that is shaped to form one or more lenses. Additionally or alternatively, in some embodiments, interior 117 of optical cup 112 may be empty, and instead its interior surface(s) may be reflective, e.g., to direct light as described previously.
  • Optical cup 110 may have a cup shape as shown in the Figures, or may have other shapes, such as a cone shape, a pyramid shape, a box shape, etc.
  • one or more LEDs 118 may be mounted on a first side (bottom side in Fig. 2) of a substrate 120, such as a printed circuit board and/or one or more silicone wafers or dies.
  • a baffle 150 (also visible in Fig. 3) may be provided to direct light emitted by the one or more FEDs 118 in a particular direction.
  • Baffle 150 may or may not be part of apparatus 100 (e.g., provided with or separately from).
  • other components depicted in the figures, such as platform 104 and/or bottom flange 110, may or may not be part of apparatus 100.
  • baffle 150 may be omitted.
  • Baffle 150 in Fig. 2 is an angled baffle such that optical cone 112 needs to be angled slightly to point directly into baffle 150. In other scenarios, it may be desired that optical cone 112 be slightly angled (with or without the presence of baffle 150) such that light emitted by the one or more FEDS 118 is directed in a direction other than straight down, such as towards a position below that is offset from lighting apparatus 100, or even at a horizontal surface (e.g., to illuminate a painting or architectural feature). As mentioned previously, conventional recessed lighting apparatus have heat sinks that typically extend straight back from first end 114 of optical element, e.g., parallel to central axis CA of optical cone 112.
  • Tilting a conventional optical cone to achieve the desired angle of illumination means the corresponding heat sink is also tilted to the same angle.
  • the physical presence of the heat sink may limit how much the conventional optical cone can be tiled.
  • the conventional heat sink may be offset from a center of gravity such that its weight puts strain on various components.
  • heat sink assembly 121 extends obliquely from central axis CA of optical cup 112.
  • heat sink assembly 121 includes a plurality of parallel fins 122 that extend (or“sweep,” similar to an airplane wing) away from the first end 114 of optical cup 112 in a direction (referred to herein as“rib axis,” indicated at“RA” in the Figures) that is at an oblique angle a relative to the central axis CA of optical cup 112.
  • rib axis indicated at“RA” in the Figures
  • oblique angle a may be between 20° and 30°, such as approximately 22.5°.
  • Figs. 5-7 demonstrate some advantages of having oblique angle a be approximately 22.5°.
  • housing 102 may include a lateral (e.g., planar) surface 124 extending across housing 102, e.g., orthogonal to central axis CA of optical cup 112.
  • first end 114 of optical cup 112 (and more particularly, substrate 120) may be mounted on a first side 125 of lateral surface 123.
  • plurality of fins 122 may extend, e.g., obliquely, from a second side 123 of lateral surface 124.
  • plurality of fins 122 may be separate components from lateral surface 124 but may be secured to lateral surface 124, e.g., using glue, welding, mechanical fasteners, etc.
  • plurality of fins 122 may protrude from second side 123 of lateral surface 124. Whichever the case, because lateral surface 124 is orthogonal to central axis CA of optical cup 112, plurality of fins 122 may also extend at an oblique angle (e.g., a) from lateral surface 124.
  • Fig. 4 is an exploded view of adjustable recessed lighting apparatus 100.
  • baffle 150 is adjacent to, and aligned with, bottom flange 110.
  • Top ring 106 is a slightly smaller diameter than bottom ring 108, e.g., so that top ring 106 is rotatable within bottom ring 108, e.g., by way of cooperating flanges (indicated at 132 in Figs. 5-7). In other embodiments, these dimensions may be reversed, e.g., so that bottom ring 108 has a smaller diameter than top ring 106.
  • At least portions of baffle 150 and top ring 106 are insertable through an aperture 105 of platform 104, such that a hinge hole l26a is exposed and available to hinge 126 of housing 102 when apparatus 100 is assembled.
  • Optical cone 112 may be secured to housing 102, e.g., by way of substrate 120 being secured to first side 125 of lateral surface 124 (not visible in Fig. 4, see Fig. 2).
  • Central axis CA of optical cone 112 is also indicated in Fig. 4, and is oblique relative to an axis X of assembly that is depicted in Fig. 4.
  • axis X of assembly may be parallel to (e.g., coaxial with) rib axis RA depicted in Fig. 2.
  • Figs. 5-7 demonstrate how orienting heat sink assembly 121 at an oblique angle a relatively to central axis CA of optical cone 112 may reduce the amount of space required to pivot housing 102, and hence optical cup 112, to various angles.
  • Figs. 5-7 also demonstrate one aspect of the present disclosure, namely, that in various embodiments, housing 102 may include six exterior surfaces l30a-f such that housing 102 has a side profile (i.e., viewed from the perspective of Figs. 5-7) with a substantially hexagonal shape. This is not meant to be limiting, and a side profile of housing 102 may have other polygonal shapes, such as a pentagon shape, a square or rectangular shape, an elliptical (e.g., circular) shape, etc.
  • lateral surface 124 extends between a point along one of the six side surfaces (midway across l30c in Figs. 5-7) to approximately an intersection between two other side surfaces (l30f and 130a in Figs. 5-7).
  • plurality of fins 122 extend parallel to a diameter (D in Fig. 5) of the substantially hexagonal shape.
  • central axis CA of optical cup 112 may be oblique to that diameter (D) of the substantially hexagonal shape.
  • bottom flange 110 is omitted. Instead, adjustable recessed lighting apparatus 100 is depicted installed in a ceiling 111 (e.g., drywall). When installed, ceiling 111 extends between platform 104 and a lower lip/flange of baffle 150.
  • oblique angle a is 22.5°, which is half of 45°. Consequently, housing 102 may be pivoted or tilted in either direction.
  • housing 102 is not tilted in either direction. Consequently, rib axis RA (which as noted above may be parallel to a longitudinal axis of housing 102) is pointed straight up, and central axis CA is angled to the right from rib axis RA by an angle a of 22.5°.
  • optical cone 112 is tilted such that light it emits is pointed down and to the left, e.g., in general alignment with baffle 150, which is asymmetric from the perspective of Fig. 5.
  • heat sink assembly 121 is oriented straight upwards.
  • the corresponding rotation of heat sink assembly 121 may require less rotational radius than would be required if, for instance, heat sink assembly 121 extended straight back from optical cone 112 along central axis CA.
  • housing 102 has been pivoted about hinge 126 towards the left (e.g., by 22.5°), as indicated by the curved arrow at top.
  • optical cone 112 is now pointed straight downwards into (but out of direct alignment with) baffle 150.
  • central axis CA is depicted straight up and down in Fig. 6, while rib axis RA is angled to the left, e.g., by an angle a of 22.5° from central axis CA.
  • heat sink assembly 121 still requires relatively little“headroom,” which is advantageous given the typically constrained spaces in which recessed lighting apparatus are installed.
  • housing 102 has been pivoted about hinge 126 towards the right (e.g., by 22.5°), as indicated by the curved arrow at top.
  • central axis CA of optical cone 112 is at a 45° angle from a plane (not depicted) defined by platform 104, which may be parallel to a plane defined by the ceiling 111 in which apparatus 100 is installed.
  • rib axis RA is oblique relative to central axis CA
  • plurality of fins 122 are still only tilted 22.5° relative to a vertical axis down through a center of gravity (not depicted) of apparatus 100.
  • inventive embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed.
  • inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein.
  • a reference to“A and/or B”, when used in conjunction with open-ended language such as“comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
  • “or” should be understood to have the same meaning as“and/or” as defined above.
  • “or” or“and/or” shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as“only one of’ or“exactly one of,” or, when used in the claims,“consisting of,” will refer to the inclusion of exactly one element of a number or list of elements.
  • the phrase“at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements.
  • This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase“at least one” refers, whether related or unrelated to those elements specifically identified.
  • “at least one of A and B” can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

Des modes de réalisation de l'invention concernent un appareil d'éclairage encastré réglable (100) comprenant des ensembles puits de chaleur à angle oblique (121). Dans divers modes de réalisation, un boîtier (102) peut être monté pivotant sur une structure de base (106, 108, 104). Une coupelle optique (112) peut être contenue de manière fixe à l'intérieur du boîtier et couplée de manière lumineuse à une ou plusieurs sources de lumière au niveau d'une première extrémité (114) de la coupelle optique. La coupelle optique peut comprendre un ou plusieurs éléments optiques conçus pour diriger la lumière émise par la ou les sources de lumière depuis la première extrémité de la coupelle optique vers une seconde extrémité (116) de la coupelle optique le long d'un axe central (CA) de la coupelle optique. Un ensemble puits de chaleur (121) peut être couplé thermiquement à la ou aux sources de lumière. L'ensemble puits de chaleur peut s'étendre à l'opposé des première et seconde extrémités de la coupelle optique selon un angle oblique (α) par rapport à l'axe central de la coupelle optique.
PCT/EP2019/073405 2018-09-17 2019-09-03 Appareil d'éclairage encastré réglable Ceased WO2020057956A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862732030P 2018-09-17 2018-09-17
US62/732,030 2018-09-17
EP18201762 2018-10-22
EP18201762.4 2018-10-22

Publications (1)

Publication Number Publication Date
WO2020057956A1 true WO2020057956A1 (fr) 2020-03-26

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US6211626B1 (en) 1997-08-26 2001-04-03 Color Kinetics, Incorporated Illumination components
DE102005032265A1 (de) * 2005-07-04 2007-01-25 Siteco Beleuchtungstechnik Gmbh Rastbefestigung von Leuchtenbauteilen
EP2322847A2 (fr) * 2009-11-17 2011-05-18 Siteco Beleuchtungstechnik GmbH Plafonnier réglable à DEL
EP2749814A1 (fr) * 2012-12-28 2014-07-02 Toshiba Lighting & Technology Corporation Dispositif d'éclairage
US20150219407A1 (en) * 2014-02-03 2015-08-06 Juno Manufacturing Llc Wedge shaped heat sink for gimbal mounted solid state recessed lighting
EP3196540A1 (fr) * 2014-08-28 2017-07-26 Modulex Inc. Corps de dispositif d'éclairage et dispositif d'éclairage
US10024523B2 (en) * 2016-09-15 2018-07-17 Usai, Llc Adjustable light module for light fixture

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US6211626B1 (en) 1997-08-26 2001-04-03 Color Kinetics, Incorporated Illumination components
DE102005032265A1 (de) * 2005-07-04 2007-01-25 Siteco Beleuchtungstechnik Gmbh Rastbefestigung von Leuchtenbauteilen
EP2322847A2 (fr) * 2009-11-17 2011-05-18 Siteco Beleuchtungstechnik GmbH Plafonnier réglable à DEL
EP2749814A1 (fr) * 2012-12-28 2014-07-02 Toshiba Lighting & Technology Corporation Dispositif d'éclairage
US20150219407A1 (en) * 2014-02-03 2015-08-06 Juno Manufacturing Llc Wedge shaped heat sink for gimbal mounted solid state recessed lighting
EP3196540A1 (fr) * 2014-08-28 2017-07-26 Modulex Inc. Corps de dispositif d'éclairage et dispositif d'éclairage
US10024523B2 (en) * 2016-09-15 2018-07-17 Usai, Llc Adjustable light module for light fixture

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