WO2024022994A1 - Dispositif d'éclairage à optique réglable - Google Patents

Dispositif d'éclairage à optique réglable Download PDF

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Publication number
WO2024022994A1
WO2024022994A1 PCT/EP2023/070394 EP2023070394W WO2024022994A1 WO 2024022994 A1 WO2024022994 A1 WO 2024022994A1 EP 2023070394 W EP2023070394 W EP 2023070394W WO 2024022994 A1 WO2024022994 A1 WO 2024022994A1
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WO
WIPO (PCT)
Prior art keywords
flexible lens
back plate
light
shape
lighting device
Prior art date
Application number
PCT/EP2023/070394
Other languages
English (en)
Inventor
Westly Davis HETRICK
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 WO2024022994A1 publication Critical patent/WO2024022994A1/fr

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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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V17/005—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
    • 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
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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 relates generally to lighting solutions, and in particular to lighting devices that include a flexible lens as adjustable optics.
  • Optical control is a basic requirement in lighting fixtures. Typically, optical control is achieved with means such as reflectors, traditional lensing, and Fresnel lensing depending on the type of light fixture.
  • the distribution pattern of a light provided by a light fixture may be changed by changing the optics component, such as a lens, of the light fixture.
  • a different optics component is needed to obtain a different distribution pattern of a light provided by a light fixture.
  • obtaining a desired optics component or changing an optics component of a light fixture may not be convenient and cost effective.
  • a solution that enables using a single optics component to obtain or change the distribution pattern of a light provided by a light fixture may be desirable.
  • a lighting device includes a back plate and a light emitting diode (LED) light module that includes one or more LEDs configured to emit a light.
  • the lighting device further includes a flexible lens that is adjustably attached to the back plate such that the light passes through the flexible lens, wherein a distribution pattern of the light after passing through the flexible lens depends on a shape of the flexible lens, and wherein the shape of the flexible lens is changeable by changing locations where the flexible lens is attached to the back plate.
  • LED light emitting diode
  • a light fixture in another example embodiment, includes a housing and a lighting device.
  • the lighting device includes a back plate attached to the housing and an LED light module that includes one or more LEDs configured to emit a light.
  • the lighting device further includes a flexible lens that is adjustably attached to the back plate such that the light passes through the flexible lens, where a distribution pattern of the light after passing through the flexible lens depends on a shape of the flexible lens and where the shape of the flexible lens is changeable by changing locations where the flexible lens is attached to the back plate.
  • FIG. 1 illustrates a lighting device that includes a flexible lens as an adjustable optics according to an example embodiment
  • FIG. 2 illustrates a close-up view of a portion of the lighting device shown in FIG. 1 according to an example embodiment
  • FIG. 3 illustrates the lighting device including the flexible lens having a different shape than shown in FIG. 1 according to another example embodiment
  • FIG. 4 illustrates a close-up view of a portion of the lighting device shown in FIG. 3 according to an example embodiment
  • FIG. 5 illustrates the lighting device including the flexible lens having a different shape than shown in FIGS. 1 and 3 according to another example embodiment
  • FIG. 6 illustrates a close-up view of a portion of the lighting device shown in FIG. 5 according to an example embodiment
  • FIGS. 7A - 7C illustrate side views of the flexible lens shaped as shown in FIGS. 1, 3, and 5 according to another example embodiment.
  • FIG. 8 illustrates a light fixture including the lighting device of FIG. 1 according to an example embodiment.
  • FIG. 1 illustrates a lighting device 100 that includes a flexible lens 102 as an adjustable optics according to an example embodiment
  • FIG. 2 illustrates a close-up view of a portion A of the lighting device 100 shown in FIG. 1 according to an example embodiment
  • the lighting device 100 includes the flexible lens 102, a light module 104, and a back plate 106.
  • the light module 104 may be attached to the back plate 106 using one or more fasteners and/or other means such as an adhesive.
  • the light module 104 may include a printed circuit board (PCB) 204 and multiple LEDs, such as LEDs 108, that are attached to the PCB 204.
  • the LEDs may emit the light that is ultimately provided by the lighting device, for example, to illuminate an area.
  • the light module 104 may be an LED printed circuit board assembly (PCB A) or another type of light module.
  • PCB A LED printed circuit board assembly
  • the flexible lens 102 may be a flexible film or a flexible sheet that allows light to pass therethrough.
  • the flexible lens 102 may be made from polyethylene terephthalate (PET) and/or another material as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • PET polyethylene terephthalate
  • the flexible lens 102 may include multiple micro-optics, such as micro-optics 202 (more clearly shown in FIG. 2).
  • the micro-optics may be on the side of the flexible lens 102 facing an area illuminated by a light provided by the lighting device 100 and may be in one or more patterns.
  • the micro-optics in FIG. 1 are shown for clarity of illustration and are not necessarily intended to represent actual micro-optics patterns.
  • the flexible lens 102 is attached to the back plate 106 such that the light provided by the light module 104 is directed toward the flexible lens 102 and passes through the flexible lens 102, for example, toward an area to be illuminated by the light.
  • mounting structures 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132 may be used to attach the flexible lens 102 to the back plate 106.
  • a subset of the mounting structures 110-132 may be used together to attach the flexible lens 102 to the back plate 106 such that the flexible lens 102 has a particular shape (e.g., a particular cross-sectional shape) that results in a particular distribution pattern of the light.
  • Another subset of the mounting structures 110-132 may be used together to attach the flexible lens 102 to the back plate 106 such that the flexible lens 102 has another shape (e.g., another cross-sectional shape) that results in another distribution pattern of the light.
  • the distribution pattern of the light after passing through the flexible lens 102 depends on the shape of the flexible lens 102, the distribution pattern of the light may be changed by changing the subset of the mounting structures 110-132 that are used to attach the flexible lens 102 to the back plate 106.
  • the mounting structures 110, 114, 118, 122, 126, 130 may be used to attach the flexible lens 102 to the back plate 106 as shown in FIGS. 1 and 2.
  • the mounting structures 112, 116, 120, 124, 128, 132 may be unused when the flexible lens 102 is attached to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130. Attaching the flexible lens 102 to the back plate 106 using the mounting structures 110, 114, 118, 122, 126, 130 may result in a symmetrical cross-sectional shape of the flexible lens 102 and may result in a symmetrical distribution pattern of the light provided by the lighting device 100.
  • FIG. 7A An example symmetrical distribution pattern of the light provided by the lighting device 100 when the flexible lens 102 is attached to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130 is shown in FIG. 7A.
  • the mounting structures 110, 114, 118 and the mounting structures 122, 126, 130 are spaced from the light module 104 by different distances, the cross-sectional shape of the flexible lens 102 and the resulting light distribution pattern may be non-symmetrical.
  • the mounting structures 110, 114, 118, 122, 126, 130 may be used to attach the flexible lens 102 to the back plate 106.
  • the use of the mounting structures 110, 114, 118, 124, 128, 132 may result in a non-symmetrical cross-sectional shape of the flexible lens 102 that is different from the symmetrical shape of the flexible lens 102 shown in FIGS. 1 and 2.
  • the distribution pattern of the light provided by the lighting device 100 when the flexible lens 102 is attached to the back plate 106 by the mounting structures 110, 114, 118, 124, 128, 132 may be non-symmetrical and different from the distribution pattern shown in FIG. 7A.
  • the mounting structures 112, 116, 120, 122, 126, 130 may be used to attach the flexible lens 102 to the back plate 106.
  • the use of the mounting structures 112, 116, 120, 122, 126, 130 may result in another non-symmetrical cross-sectional shape of the flexible lens 102 that is different from the symmetrical shape of the flexible lens 102 shown in FIGS. 1 and 2.
  • the distribution pattern of the light provided by the lighting device 100 when the flexible lens 102 is attached to the back plate 106 by the mounting structures 112, 116, 120, 122, 126, 130 may be non-symmetrical and different from the distribution pattern shown in FIG. 7A.
  • the mounting structures 110-132 may each be a mounting tab that extends out from the back plate 106.
  • each mounting structure of the mounting structures 110-132 may be formed by cutting out a respective portion of the back plate 106 to form a tab and bending the tab to extend out from the back plate 106 beyond the surface of the back plate 106.
  • the back plate 106 may be made from sheet metal.
  • the back plate 106 may be made from plastic or another suitable material and the mounting structures 110-132 may be formed using methods such as cutting, bending, and/or molding as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the back plate 106 may include attachment holes, such as attachment holes 134, 136, that may be used to attach brackets to the back plate 106.
  • the brackets may be attached to the back plate 106 by fasteners (e.g., screws) that extend through the attachment holes.
  • brackets instead of or in addition to a subset of the mounting structures 110-132 may be used as mounting structures for attaching the flexible lens 102 to the back plate 106 and to define the shape of the flexible lens 102.
  • the locations where the flexible lens 102 is attached to the back plate 106 can be changed.
  • various shapes of the flexible lens 102 can be achieved, which can result in different distribution patterns of the light provided by the lighting device 100.
  • the use of the flexible lens 102 and the flexibility of selecting a subset of the mounting structures 110-132 to attach the flexible lens 102 to the back plate 106 may reduce the need to use different types of optics components to achieve different light distribution patterns.
  • the flexible lens 102 and the flexibility of selecting a subset of the mounting structures 110-132 enable the field adjustability of the shape of the flexible lens 102 and thus the field adjustability of the distribution pattern of the light provided by the lighting device 100.
  • the back plate 106 and the PCB 204 may be a single component such as a single PCB component.
  • the light module 104 and the back plate 106 may be a single component.
  • the light module 104 may not include the PCB 204, and the LEDs of the light module 104 may be attached to a single PCB component that serves as the back plate 106 and the PCB 204.
  • the back plate 106 may be omitted, and the PCB 204 may serve as a back plate, where the mounting structures are formed or otherwise attached to the PCB 204.
  • the flexible lens 102 may have micro-optics that have different shapes and/or that are in a different pattern than shown in FIGS.
  • components and/or structures other than the mounting structures 110-132 may be used to attach the flexible lens 102 to the back plate 106 without departing from the scope of this disclosure.
  • one or more mounting structures of the mounting structures 110-132 may be at different locations than shown without departing from the scope of this disclosure.
  • the lighting device 100 may include more or fewer mounting structures than shown without departing from the scope of this disclosure.
  • FIG. 3 illustrates the lighting device 100 including the flexible lens having a different shape than shown in FIG. 1 according to another example embodiment
  • FIG. 4 illustrates a close-up view of a portion of the lighting device 100 shown in FIG. 3 according to an example embodiment
  • the lighting device 100 includes the flexible lens 102, the light module 104, and the back plate 106.
  • the light module 104 may be attached to the back plate 106 using one or more fasteners and/or other means such as an adhesive.
  • the light module 104 may include the PCB 204 and multiple LEDs, such as LEDs 108, that are attached to the PCB 204.
  • the LEDs may emit the light that is ultimately provided by the lighting device, for example, to illuminate an area.
  • the light module 104 may be an LED printed circuit board assembly (PCB A) or another type of light module.
  • the flexible lens 102 may be a flexible film or a flexible sheet that allows light to pass therethrough.
  • the flexible lens 102 may be made from PET and/or another material as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the flexible lens 102 may include multiple microoptics, such as micro-optics 202 (shown more clearly in FIG. 2).
  • the microoptics may be on the side of the flexible lens 102 facing an area illuminated by a light provided by the lighting device 100 and may be in one or more patterns.
  • micro-optics of the flexible lens 102 may be integrally formed with the rest of the flexible lens 102 using one or more methods, such as molding, as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • Each one of the micro-optics may be an optical structure that functions as an optics that directs light passing through the flexible lens 102 including the particular micro-optic.
  • the flexible lens 102 is attached to the back plate 106 such that the light provided by the light module 104 is directed toward the flexible lens 102 and passes through the flexible lens 102, for example, toward an area to be illuminated by the light.
  • the flexible lens 102 is attached to the back plate 106 by the mounting structures 112, 116, 120, 124, 128, 132.
  • the mounting structures 110, 114, 118, 122, 126, 130 shown in FIG. 1 may be unused when the flexible lens 102 is attached to the back plate 106 by the mounting structures 112, 116, 120, 124, 128, 132.
  • attaching the flexible lens 102 to the back plate 106 using the mounting structures 112, 116, 120, 124, 128, 132 may result in a symmetrical cross-sectional shape of the flexible lens 102 that is different from the symmetrical cross-sectional shape of the flexible lens 102 shown in FIGS. 1 and 2, where the flexible lens 102 is attached to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130.
  • the cross-sectional shape of the flexible lens 102 as shown in FIGS. 3 and 4 may be relatively wider than the relatively narrower cross-sectional shape of the flexible lens 102 as shown in FIGS. 1 and 2. The relatively wider shape of the flexible lens 102 in FIGS.
  • 3 and 4 may result in a symmetrical distribution pattern of the light provided by the lighting device 100.
  • the mounting structures 112, 116, 120 and the mounting structures 124, 128, 132 are spaced from the light module 104 by different distances, the cross-sectional shape of the flexible lens 102 and the resulting light distribution pattern may be non-symmetrical.
  • the distribution pattern of the light provided by the lighting device 100 based on the attachment of the flexible lens 102 to the back plate 106 as shown in FIGS. 3 and 4 may be wider than the distribution pattern resulting from the attachment of the flexible lens 102 to the back plate 106 as shown in FIGS. 1 and 2.
  • An example symmetrical distribution pattern of the light provided by the lighting device 100 when the flexible lens 102 is attached to the back plate 106 by the mounting structures 112, 116, 120, 124, 128, 132 is shown in FIG. 7B.
  • the distribution pattern of the light provided by the lighting device 100 depends on the shape of the flexible lens 102
  • the distribution pattern of the light may be changed by changing the subset of the mounting structures 110-132 (more clearly shown in FIG. 1) that are used to attach the flexible lens 102 to the back plate 106.
  • Changing the subset of the mounting structures 110-132 that are used to attach the flexible lens 102 to the back plate 106 is generally equivalent to changing the locations where the flexible lens 102 to the back plate 106. That is, the shape of the flexible lens 102, and thus the distribution pattern of the light provided by the lighting device 100 through the flexible lens 102, may be defined by the locations where the flexible lens 102 is attached to the back plate 106.
  • the locations where the flexible lens 102 is attached to the back plate 106 may correspond to the locations of the particular mounting structures of the mounting structures 110-132 that are used to attach the flexible lens 102 to the back plate 106.
  • the back plate 106 may include the attachment holes 134, 136, 302, 304, 306, 308.
  • the attachment holes 134, 136, 302, 304, 306, 308 may be used to attach brackets to the back plate 106.
  • the brackets may be attached to the back plate 106 by fasteners (e.g., screws) that extend through the attachment holes.
  • brackets instead of or in addition to a subset of the mounting structures 110-132 (more clearly shown in FIG. 1) may be used as mounting structures for attaching the flexible lens 102 to the back plate 106 and to define the shape of the flexible lens 102.
  • the flexible lens 102 can be used to produce a different distribution of the light provided by the lighting device 100 without replacing the flexible lens 102 or without replacing the flexible lens 102 by a different type of lens.
  • the mounting structures 112, 116, 120, 124, 128, 132 may be at different locations than shown without departing from the scope of this disclosure.
  • the attachment holes 134, 136, 302, 304, 306, 308 may be at different locations than shown without departing from the scope of this disclosure.
  • the back plate 106 may include more or fewer attachment holes than shown in FIG. 3 without departing from the scope of this disclosure.
  • the flexible lens 102 may have features (e.g., micro-optics, protrusions, etc.) instead or in addition to the micro-optics shown in FIGS. 1-4 without departing from the scope of this disclosure.
  • FIG. 5 illustrates the lighting device 100 including the flexible lens 102 having a different shape than shown in FIGS. 1 and 3 according to another example embodiment
  • FIG. 6 illustrates a close-up view of a portion of the lighting device 100 shown in FIG. 5 according to an example embodiment
  • the lighting device 100 includes the flexible lens 102, the light module 104, and the back plate 106.
  • the light module 104 may be attached to the back plate 106 using one or more fasteners and/or other means such as an adhesive.
  • the light module 104 may include the PCB 204 and multiple LEDs, such as LEDs 108, that are attached to the PCB 204.
  • the LEDs may emit the light that is ultimately provided by the lighting device, for example, to illuminate an area.
  • the light module 104 may be an LED printed circuit board assembly (PCB A) or another type of light module.
  • PCB A LED printed circuit board assembly
  • the flexible lens 102 may be a flexible film or a flexible sheet that allows light to pass therethrough.
  • the flexible lens 102 may be made from PET and/or another material as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the flexible lens 102 may include multiple micro-optics, such as micro-optics 202 (shown more clearly in FIG. 2).
  • the micro-optics may be on the side of the flexible lens 102 facing an area illuminated by a light provided by the lighting device 100 and may be in one or more patterns.
  • the micro-optics in FIG. 5 are shown for clarity of illustration and are not necessarily intended to represent actual micro-optics patterns.
  • the flexible lens 102 is attached to the back plate 106 such that the light provided by the light module 104 is directed toward the flexible lens 102 and passes through the flexible lens 102, for example, toward an area to be illuminated by the light.
  • the flexible lens 102 is attached to the back plate 106 by brackets 502, 504, 506.
  • the brackets 502, 504, 506 may be made from plastic and/or another suitable material using methods, such as molding, cutting, and/or bending as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the mounting structures 110-132 shown in FIG. 1 may be unused when the flexible lens 102 is attached to the back plate 106 by the brackets 502, 504, 506.
  • the bracket 502 may be attached to the back plate 106 at the attachment holes 134, 136 shown in FIG. 3.
  • a fastener (not shown) may extend through the attachment hole 134
  • another fastener (not shown) may extend through the attachment hole 136 to attach the bracket 502 to the back plate 106 as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the fasteners may be integrally formed with the bracket 502 or may be separate components from the bracket 502.
  • the bracket 504 may be attached to the back plate 106 at the attachment holes 302, 306 shown in FIG. 3.
  • a fastener (not shown) may extend through the attachment hole 302
  • another fastener (not shown) may extend through the attachment hole 306 to attach the bracket 504 to the back plate 106 as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the fasteners may be integrally formed with the bracket 504 or may be separate components from the bracket 504.
  • the bracket 506 may be attached to the back plate 106 at the attachment holes 304, 308 shown in FIG. 3.
  • a fastener (not shown) may extend through the attachment hole 304, and another fastener (not shown) may extend through the attachment hole 308 to attach the bracket 504 to the back plate 106 as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the fasteners may be integrally formed with the bracket 506 or may be separate components from the bracket 506.
  • the brackets 502, 504, 506 may define the cross-sectional shape of the flexible lens 102.
  • the shape of the flexible lens 102 may conform to or otherwise depend on the profile shape of a portion of one or more of the brackets 502, 504, 506.
  • attaching the flexible lens 102 to the back plate 106 using the brackets 502, 504, 506 may result in a non-symmetrical cross-sectional shape of the flexible lens 102 that is different from the cross-sectional shapes of the flexible lens 102 shown in FIGS. 1-4.
  • the non-symmetrical cross-sectional shape of the flexible lens 102 in FIGS. 5 and 6 may result in a non-symmetrical distribution pattern of the light provided by the lighting device 100.
  • FIG. 7C An example non-symmetrical distribution pattern of the light provided by the lighting device 100 when the flexible lens 102 is attached to the back plate 106 by the brackets 502, 504, 506 is shown in FIG. 7C.
  • the brackets 502, 504, 506 may be shaped to result in a symmetrical shape of the flexible lens 102 and thus a symmetrical distribution pattern of the light provided by the lighting device 100.
  • the shape of the flexible lens 102 may conform to or otherwise depend on one or more profile shapes or surface features (e.g., contours, surface elevation changes, posts, pins, brackets located below the lens, notches or the like) of the back plate 106, or the shape of the flexible lens 102 may conform to or otherwise depend on both the profile shape of one or more of the brackets 502, 504, 506 and the profile shape(s) or surface features of the back plate 106.
  • profile shapes or surface features e.g., contours, surface elevation changes, posts, pins, brackets located below the lens, notches or the like
  • the distribution pattern of the light provided by the lighting device 100 depends on the shape of the flexible lens 102
  • the distribution pattern of the light may be changed by changing the locations of the brackets 502-506. Because the distribution pattern of the light provided by the lighting device 100 depends on the shape of the flexible lens 102, the distribution pattern of the light may be changed by changing the shapes of the brackets 502-506.
  • the mounting structures 110-132 may be omitted without departing from the scope of this disclosure.
  • the brackets 502, 504, 506 may be at different locations than shown in FIG. 5 without departing from the scope of this disclosure.
  • the lighting device 100 may include more or fewer brackets than shown in FIG. 5 without departing from the scope of this disclosure.
  • the brackets 502, 504, 506 may have different shapes than shown in FIGS. 5 and thus may result in other shapes of the flexible lens 102 and corresponding other light distribution patterns without departing from the scope of this disclosure.
  • FIGS. 7A - 7C illustrate side views of the flexible lens 102 shaped as shown in FIGS. 1, 3, and 5 according to another example embodiment.
  • a light 702 from the light module 104 passes through the flexible lens 102, where the flexible lens 102 results in the light 702 having a distribution pattern 704 shown in FIG. 7A.
  • the shape of the flexible lens 102 in FIG. 7A may match the shape of the flexible lens 102 in FIGS. 1 and 2, where the flexible lens 102 is attached to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130.
  • the distribution pattern 704 of the light 702 as shown in 7A may be the distribution pattern resulting from the attachment of the flexible lens 102 to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130.
  • the distribution pattern 704 may be a symmetrical distribution pattern.
  • the light 702 provided by the light module 104 passes through the flexible lens 102, where the flexible lens 102 results in the light 702 having a distribution pattern 706 shown in FIG. 7B.
  • the shape of the flexible lens 102 in FIG. 7B may match the shape of the flexible lens 102 in FIGS. 3 and 4, where the flexible lens 102 is attached to the back plate 106 by the mounting structures 112, 116, 120, 124, 128, 132.
  • the distribution pattern 706 of the light 702 as shown in 7B may be the distribution pattern resulting from the attachment of the flexible lens 102 to the back plate 106 by the mounting structures 110, 114, 118, 122, 126, 130.
  • the distribution pattern 706 may be a symmetrical distribution pattern.
  • the light 702 provided by the light module 104 passes through the flexible lens 102, where the flexible lens 102 results in the light 702 having a distribution pattern 708 shown in FIG. 7C.
  • the shape of the flexible lens 102 in FIG. 7C may match the shape of the flexible lens 102 in FIGS. 5 and 6, where the flexible lens 102 is attached to the back plate 106 by the brackets 502, 504, 506.
  • the distribution pattern 708 of the light 702 as shown in 7C may be the distribution pattern resulting from the attachment of the flexible lens 102 to the back plate 106 by the brackets 502, 504, 506.
  • the distribution pattern 708 may be a non-symmetrical distribution pattern.
  • the flexible lens 102 may be shaped to result in a different light distribution pattern than the distribution patterns 704, 706, and 708 shown in FIGS. 7A, 7B, and 7C, respectively.
  • the flexible lens 102 may include micro-optics, such as micro-optics 202 shown in FIG. 2 and micro-optics 712 shown in FIG. 7A, where the light distribution patterns 704, 706, 708 may depend on the individual micro-optics and the overall pattern of the micro-optics.
  • the micro-optics of the flexible lens 102 may have other shapes and/or may be in arranged in a different pattern or in one or more patterns than shown without departing from the scope of this disclosure. For example, some or all of the micro-optics of the flexible lens 102 may be formed into the flexible lens 102 instead of protruding out as shown in FIGS. 7A-7C without departing from the scope of this disclosure.
  • FIG. 8 illustrates a light fixture 800 including the lighting device 100 of FIG. 1, 3, or 5 according to an example embodiment.
  • the light fixture 800 includes a housing 802 and the lighting device 100 that is attached to the housing 802.
  • the housing 802 may include back panels 804, 806 (e.g., reflectors) and end panels 808, 810.
  • the lighting device 100 may be attached to the back panels 804, 806 and/or to the end panels 808, 810, for example, using fasteners as can be readily understood by those of ordinary skill in the art with the benefit of this disclosure.
  • the flexible lens 102 may have the shape shown in FIG. 1 or FIG. 3.
  • the lighting device 100 may include the brackets 502-506 (shown in FIG. 5), and the flexible lens 102 may have the shape shown in FIG. 5.
  • the shape of the flexible lens 102 in the light fixture 800 may be different from the shape of the flexible lens 102 shown in FIGS. 1, 3, and 5 without departing from the scope of this disclosure.
  • the light fixture 800 may be a different type of light fixture than shown in FIG. 8.
  • the housing 802 may have a different shape than shown in FIG. 8 without departing from the scope of this disclosure.
  • the lighting device 100 may be attached to the housing 802 at a different location than shown in FIG. 8 without departing from the scope of this disclosure.
  • one or more components of the light fixture 800 may be omitted without departing from the scope of this disclosure.

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  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

Un dispositif d'éclairage comprend une plaque arrière et un module de lumière à diode électroluminescente (DEL) qui comprend une ou plusieurs DEL conçues pour émettre une lumière. Le dispositif d'éclairage comprend en outre une lentille souple qui est fixée de manière réglable à la plaque arrière de telle sorte que la lumière passe à travers la lentille souple, un motif de distribution de la lumière après passage par la lentille souple dépendant d'une forme de la lentille souple et la forme de la lentille souple pouvant être modifiée en changeant des emplacements au niveau dequels la lentille souple est fixée à la plaque arrière.
PCT/EP2023/070394 2022-07-29 2023-07-24 Dispositif d'éclairage à optique réglable WO2024022994A1 (fr)

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US202263393576P 2022-07-29 2022-07-29
US63/393,576 2022-07-29
EP22190086 2022-08-12
EP22190086.3 2022-08-12

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WO2024022994A1 true WO2024022994A1 (fr) 2024-02-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010113975A (ja) * 2008-11-07 2010-05-20 Harison Toshiba Lighting Corp 照明装置および面発光装置
EP2390557A1 (fr) * 2010-05-31 2011-11-30 Koninklijke Philips Electronics N.V. Luminaire
JP2016207396A (ja) * 2015-04-20 2016-12-08 パナソニックＩｐマネジメント株式会社 光源ユニット及び照明器具
US20180059318A1 (en) * 2011-03-09 2018-03-01 Flex Lighting Ii, Llc Film-based light fixture with light reflecting layer and fastener
WO2020025427A1 (fr) * 2018-07-31 2020-02-06 Schreder S.A. Dispositif d'éclairage à répartition de lumière réglable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010113975A (ja) * 2008-11-07 2010-05-20 Harison Toshiba Lighting Corp 照明装置および面発光装置
EP2390557A1 (fr) * 2010-05-31 2011-11-30 Koninklijke Philips Electronics N.V. Luminaire
US20180059318A1 (en) * 2011-03-09 2018-03-01 Flex Lighting Ii, Llc Film-based light fixture with light reflecting layer and fastener
JP2016207396A (ja) * 2015-04-20 2016-12-08 パナソニックＩｐマネジメント株式会社 光源ユニット及び照明器具
WO2020025427A1 (fr) * 2018-07-31 2020-02-06 Schreder S.A. Dispositif d'éclairage à répartition de lumière réglable

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