EP3260762A1 - Light diffuser casing - Google Patents

Light diffuser casing Download PDF

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Publication number
EP3260762A1
EP3260762A1 EP17177369.0A EP17177369A EP3260762A1 EP 3260762 A1 EP3260762 A1 EP 3260762A1 EP 17177369 A EP17177369 A EP 17177369A EP 3260762 A1 EP3260762 A1 EP 3260762A1
Authority
EP
European Patent Office
Prior art keywords
housing
headlamp
light diffuser
envelope
separator
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.)
Granted
Application number
EP17177369.0A
Other languages
German (de)
French (fr)
Other versions
EP3260762B1 (en
Inventor
Raphaël Lanez
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.)
Zedel SAS
Original Assignee
Zedel SAS
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Filing date
Publication date
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Publication of EP3260762A1 publication Critical patent/EP3260762A1/en
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Publication of EP3260762B1 publication Critical patent/EP3260762B1/en
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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting

Definitions

  • the invention relates to a light diffuser housing, and to a method of using such a housing.
  • the use of a headlamp is less convenient because the directional beam of the lamp does not illuminate a wide space.
  • the focus of the beam is also annoying when a user looks at someone because the person is dazzled.
  • the headlamp is often suspended or placed on the ground so as not to dazzle anyone, which is not suitable either because the illuminated area is not the one that users need to see.
  • the company Mammut has marketed a flexible and translucent bag that can act as both a storage cover and light diffuser.
  • the large volume of the bag can store not only the lamp, but also other useful accessories for mountain activities.
  • the bag To be used as a light diffuser, the bag must first be emptied and closed.
  • the front strap of the lamp should be removed and secured to an external strap of the bag, so that the lighting system shines light towards the inside of the bag.
  • the fact that the bag is translucent makes it possible to obtain a diffuse light.
  • Another light diffuser is marketed by Mammut. It is a rigid and translucent housing having a removable cover at a first end, and in place of which a headlamp can be installed.
  • the housing has a light reflector positioned within the housing at a second end opposite the first end so as to face the light beam emitted by the lamp.
  • the role of the light reflector is to reflect the light emitted by the lamp towards the side walls of the housing, so that the housing emits a diffuse light.
  • the size and weight of the light diffuser can be troublesome for the user who must wear his equipment during his mountain activities.
  • Another disadvantage is that the diffuser can only be used in combination with a specific headlamp. Indeed, the rigidity of the material forming the housing does not allow to fix a lamp larger than the housing cover. If the lamp is smaller than the housing cover, it is poor and the light beam is not directed to the center of the reflector, which greatly reduces the performance of the light diffuser.
  • An object of the invention is to provide a light and compact multifunctional housing, which acts both as a light diffuser and a protective housing, so as to be useful in any circumstance.
  • the light diffuser can be made of a material chosen from the family of thermoplastic polyurethanes.
  • the housing may further include a separator separating the cavity into a first housing configured to house the headlamp, and a second housing separate from the first housing, the separator being made of a translucent or transparent material.
  • the separator may be made of a material chosen from the family of thermoplastic polyurethanes.
  • the light diffuser and the separator can be merged.
  • the separator can be curved so as to form a concave wall in the first housing. It can also be configured to block the movement of the headlamp in the first housing.
  • the envelope of the first housing can be made of an elastically deformable material, so as to allow the ignition and extinguishing of the lamp placed in the housing. More specifically, the envelope of the first housing can be made of a material selected from the family of thermoplastic polyurethanes.
  • the envelope of the second housing may also be made of a material chosen from the family of thermoplastic polyurethanes.
  • a housing 2 advantageously comprises an envelope 3 defining a cavity 4.
  • the envelope 3 is provided with a resealable opening 5, which allows the insertion of the headlamp 1 inside the housing 2
  • the opening 5 may for example be closed by means of a zipper.
  • the edges of the opening 5 may be magnetized or provided with a zipper, for example an Eclair® closure, in order to easily open and close the protective case 2.
  • the opening 5 can be placed on the lateral part 3a of the envelope 3, as shown in the figures.
  • the envelope 3 may comprise a bottom 3b serving as a base.
  • the opening 5 may then consist of separation means between the bottom 3b and the lateral portion 3a.
  • the bottom 3b is screwed on the side portion 3a as would be a cover.
  • the housing 2 can be used not only to protect the headlamp 1, but also as a light diffuser (cf. Fig. 2 and 3 ).
  • the protective case 2 advantageously comprises a light diffuser.
  • the latter is arranged on the one hand to receive a light beam emitted by the lamp 1, and on the other hand to spread the beam on the envelope 3 of the housing 2.
  • the light diffuser may for example be brought into contact or placed sufficiently close to the headlamp 1 to prevent it from moving. This also makes it possible to optimize the diffusion of light towards the envelope 3. For this, notches or protruding portions may be provided inside the envelope to wedge the light diffuser in the housing 2.
  • the light diffuser can also be secured to the casing 3 by means of a set of elastics connecting the ends of the light diffuser to the inner wall of the casing 3.
  • the light diffuser is made of a transparent or translucent material.
  • the material may be selected from the family of thermoplastic polyurethanes.
  • the housing 2 may also comprise a separator 6 advantageously mounted removably in the cavity.
  • the separator 6 may rest on protruding portions of the envelope 3, or be inserted into notches provided on the inner wall of the envelope 3.
  • the first solution may preferably be chosen when the material of the separator 6 is rigid, while the second solution is preferred when the separator 6 can undergo elastic deformation without being weakened.
  • the separator 6 is arranged in such a way that the cavity is separated into a first housing 7, the dimensions of which allow the storage of the headlamp 1, and a second housing 8 configured to allow the transmission of the light emitted by the headlamp 1 towards the outside of the housing 2 through the second housing 8.
  • the position of the separator 6 in the cavity 4 is adapted so that the separator 6 prevents the movement of the headlamp 1 in the first housing 7. In this way, when the headlamp 1 is correctly positioned in the first housing, the performance of the 2 protective housing as light diffuser are optimal.
  • part of the envelope 3 has sections of identical shapes and dimensions, which makes it possible to place the separator 6 in various positions in order to allow the housing of headlamps 1 of different sizes. This makes the case particularly versatile.
  • the casing of the first housing 7 is elastically deformable, to allow the insertion of different forms of headlamps 1.
  • the separator 6 may have a shape adapted to the shape of the headlamp 1 to not damage it.
  • the wall of the separator 6 closing the first housing is concave. This limits the risk of scratching on the optical housing of the lamp 1, which is directed towards the separator 6.
  • the separator 6 is advantageously made of a translucent or transparent material.
  • the material is chosen from the family of thermoplastic polyurethanes.
  • the light diffuser can be arranged on the one hand to receive a light beam emitted by the lamp 1 from the first housing 7, and on the other hand to diffuse the beam on the envelope of the second housing 8.
  • the light diffuser and the separator 6 may for example be positioned in parallel, and advantageously be against each other to minimize the decrease in light intensity when the passage of the beam from the first housing 7 to the second housing 8. Slots or projecting portions are then provided inside the casing to wedge the light diffuser in the housing 2.
  • the separator 6 and the light diffuser can be formed in a single piece made of two different materials.
  • the separator 6 advantageously corresponds to the wall located on the side of the first housing 7, while the light diffuser corresponds to the wall of the second housing 8.
  • the separator 6 and the light diffuser can also be merged, that is to say be made in one piece formed in a single material.
  • the material is advantageously translucent and diffuses the light preferably throughout the second housing 8.
  • the casing of the second housing 8 is also made of a material that diffuses light. This may be chosen from the family of thermoplastic polyurethanes. The material may advantageously be treated against UV.
  • the envelope comprises an elastically deformable zone 9 in the vicinity of the place where the lamp 1 is placed in the cavity 4, so as to enable the latter to switch on and off.
  • the housing comprises a separator 6, the zone 9 elastically deformable is placed on the envelope of the first housing 7.
  • the zone 9 may for example take the form of a push-button. It must then be ensured that the push-button of the headlamp 1 is placed opposite the zone 9.
  • the entire envelope of the first housing 7 can advantageously be made of elastically deformable material, so that the headlamp 1 can be placed in any way in the first housing provided that the lighting zone is directed towards the separator 6 , and therefore to the second housing 8.
  • the envelope of the first housing 7 may be made of a material selected from the family of thermoplastic polyurethanes.
  • the material of the first housing 7 can be treated against UV so that it degrades less quickly in case of prolonged exposure to ultraviolet.
  • the housing 2 it is conceivable to use the same material to form the envelope 3, and the separator 6 which is coincident with the light diffuser.
  • the material must be both translucent, light diffusing and elastically deformable.
  • the housing 2 may advantageously be provided with a strap (not shown) fixed for example on the outer wall of the bottom 3b.
  • the strap may also be located on the side portion 3a of the casing 3, but this configuration is not optimal because it prevents the diffusion of light in the area where it is attached. Whatever the position of the strap on the housing 2, it can facilitate the attachment of the housing 2 to a bag.
  • the housing 2 may for example be secured to a ventral clamping strap of a backpack.
  • the housing 2 may also include a hook (not shown) on the outer face of the casing 3 to allow its suspension.
  • a hook not shown
  • the housing 2 can act as a lantern and illuminates the environment with a diffuse light. This is particularly enjoyable when many people share this time off, because if users wear their head on their head, they dazzle each other as soon as they look at each other.
  • the protective housing 2 As a light diffuser, it is first necessary to insert the headlamp 1 in the cavity 4 and position it so that it emits light towards the envelope 3. The diffuser of The light is then positioned inside the cavity 4 and held against the headlamp 1. The housing 2 can then be closed, and the headlamp 1 can be turned on by pressing on the region 9 elastically deformable. It is then sufficient to place or suspend the housing 2 at the level of the space to be illuminated. When the user no longer needs to be illuminated, the headlamp 1 can be extinguished by pressing the zone 9 again.
  • the separator 6 can be added to improve the maintenance of the headlamp 1 in a given area.
  • the separator 6 and the light diffuser can be positioned inside the cavity by wedging them in the notches or on the projecting portions provided for this purpose.
  • a protective housing 2 such as that just described is particularly advantageous because the housing 2 performs several roles at a time. Not only the housing 2 protects the lamp, but it can also serve as a backup lamp when the user needs a diffuse light, for example in bivouac. The user no longer needs to multiply the headlamp accessories, which represents both a gain in weight and space.

Abstract

L'invention concerne un boîtier (2) diffuseur de lumière comprenant une enveloppe (3) définissant une cavité et pourvue d'une ouverture (5) refermable configurée pour permettre l'insertion d'une lampe frontale (1) à l'intérieur du boîtier (2). Un diffuseur de lumière est agencé dans le boîtier (2) pour recevoir un faisceau lumineux en provenance de la lampe frontale (1) et faire diffuser ledit faisceau sur l'enveloppe (3). Le diffuseur de lumière est réalisé dans un matériau translucide ou transparent de manière à être traversé par ledit faisceau, et l'enveloppe (3) est réalisée dans un matériau translucide. L'invention concerne également un procédé d'utilisation du boîtier (2).The invention relates to a light diffuser housing (2) comprising an envelope (3) defining a cavity and provided with a reclosable opening (5) configured to allow the insertion of a headlamp (1) into the interior of the housing. housing (2). A light diffuser is arranged in the housing (2) to receive a light beam from the headlamp (1) and diffuse said beam onto the envelope (3). The light diffuser is made of a translucent or transparent material so as to be traversed by said beam, and the envelope (3) is made of a translucent material. The invention also relates to a method of using the housing (2).

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention est relative à un boîtier diffuseur de lumière, et à un procédé d'utilisation d'un tel boîtier.The invention relates to a light diffuser housing, and to a method of using such a housing.

État de la techniqueState of the art

Afin de réaliser des activités en montagne, il est très courant de posséder une lampe frontale. L'utilisateur garde sa lampe à portée de main et peut la placer sur la tête dès que le besoin s'en fait sentir afin d'éclairer son environnement direct au cours de sa pratique.In order to carry out mountain activities, it is very common to have a headlamp. The user keeps his lamp at hand and can place it on the head as soon as the need arises to illuminate his direct environment during his practice.

Pendant des temps de repos, par exemple lors d'un bivouac, l'utilisation d'une lampe frontale est moins pratique car le faisceau directionnel de la lampe ne permet pas d'éclairer un espace large. La focalisation du faisceau est également gênante lorsqu'un utilisateur regarde quelqu'un car la personne est éblouie. Pour éviter ces désagréments, la lampe frontale est bien souvent suspendue ou posée au sol de sorte à n'éblouir personne, ce qui n'est pas convenable non plus car la zone éclairée n'est pas celle que les utilisateurs ont besoin de voir.During rest periods, for example during a bivouac, the use of a headlamp is less convenient because the directional beam of the lamp does not illuminate a wide space. The focus of the beam is also annoying when a user looks at someone because the person is dazzled. To avoid these inconveniences, the headlamp is often suspended or placed on the ground so as not to dazzle anyone, which is not suitable either because the illuminated area is not the one that users need to see.

Pour remédier à ce problème, il existe des diffuseurs de lumière portatifs qui peuvent être utilisés en association avec une lampe frontale.To remedy this problem, there are portable light diffusers that can be used in combination with a headlamp.

La société Mammut a commercialisé un sac souple et translucide pouvant faire à la fois office de housse de rangement et de diffuseur de lumière. Le volume important du sac permet de ranger non seulement la lampe, mais aussi d'autres accessoires utiles pour les activités de montagne. Pour être utilisé en tant que diffuseur de lumière, le sac doit tout d'abord être vidé et refermé. Il faut enlever la sangle frontale de la lampe, et fixer cette dernière à une sangle externe du sac, de sorte que le système d'éclairage émette la lumière en direction de l'intérieur du sac. Le fait que le sac soit translucide permet d'obtenir une lumière diffuse.The company Mammut has marketed a flexible and translucent bag that can act as both a storage cover and light diffuser. The large volume of the bag can store not only the lamp, but also other useful accessories for mountain activities. To be used as a light diffuser, the bag must first be emptied and closed. The front strap of the lamp should be removed and secured to an external strap of the bag, so that the lighting system shines light towards the inside of the bag. The fact that the bag is translucent makes it possible to obtain a diffuse light.

L'inconvénient d'un tel dispositif est sa complexité d'installation, puisqu'il faut enlever la sangle frontale avant de pouvoir l'installer sur le sac. Il faut par ailleurs que le sac soit vide, ce qui peut s'avérer gênant lorsqu'il est employé pour stocker de nombreux objets, cela étant d'autant plus vrai si les conditions météorologiques ne sont pas favorables à un déballage du sac.The disadvantage of such a device is its complexity of installation, since it is necessary to remove the front strap before being able to install it on the bag. It is also necessary that the bag is empty, which can be inconvenient when it is used to store many objects, this being especially true if the weather conditions are not conducive to unpacking the bag.

Un autre diffuseur de lumière est commercialisé par la société Mammut. Il s'agit d'un boîtier rigide et translucide comportant un couvercle amovible à une première extrémité, et à la place duquel une lampe frontale peut être installée. Le boîtier comporte un réflecteur de lumière positionné à l'intérieur du boîtier à une deuxième extrémité opposée à la première extrémité, de sorte à être face au faisceau lumineux émis par la lampe. Le rôle du réflecteur de lumière est de réfléchir la lumière émise par la lampe en direction des parois latérales du boîtier, de sorte que le boîtier émette une lumière diffuse.Another light diffuser is marketed by Mammut. It is a rigid and translucent housing having a removable cover at a first end, and in place of which a headlamp can be installed. The housing has a light reflector positioned within the housing at a second end opposite the first end so as to face the light beam emitted by the lamp. The role of the light reflector is to reflect the light emitted by the lamp towards the side walls of the housing, so that the housing emits a diffuse light.

L'encombrement et le poids du diffuseur de lumière peuvent être gênants pour l'utilisateur qui doit porter son matériel lors de ses activités de montagne. Un autre inconvénient est que le diffuseur ne peut être utilisé qu'en association avec une lampe frontale spécifique. En effet, la rigidité du matériau formant le boîtier ne permet pas de fixer une lampe plus grosse que le couvercle du boîtier. Si la lampe est plus petite que le couvercle du boîtier, elle tient mal et le faisceau lumineux n'est pas dirigé au centre du réflecteur, ce qui diminue beaucoup les performances du diffuseur de lumière.The size and weight of the light diffuser can be troublesome for the user who must wear his equipment during his mountain activities. Another disadvantage is that the diffuser can only be used in combination with a specific headlamp. Indeed, the rigidity of the material forming the housing does not allow to fix a lamp larger than the housing cover. If the lamp is smaller than the housing cover, it is poor and the light beam is not directed to the center of the reflector, which greatly reduces the performance of the light diffuser.

Objet de l'inventionObject of the invention

Un objet de l'invention consiste à fournir un boîtier multifonctions léger et compact, qui joue à la fois le rôle de diffuseur de lumière et de boîtier de protection, de sorte à être utile en toute circonstance.An object of the invention is to provide a light and compact multifunctional housing, which acts both as a light diffuser and a protective housing, so as to be useful in any circumstance.

A cet effet, le boîtier comporte :

  • une enveloppe définissant une cavité et pourvue d'une ouverture refermable configurée pour permettre l'insertion d'une lampe frontale à l'intérieur du boîtier,
  • un diffuseur de lumière agencé pour :
    • o recevoir un faisceau lumineux en provenance de la lampe frontale et
    • o faire diffuser ledit faisceau sur l'enveloppe,
le diffuseur de lumière étant réalisé dans un matériau translucide ou transparent de manière à être traversé par ledit faisceau, l'enveloppe étant réalisée dans un matériau translucide.For this purpose, the housing comprises:
  • an envelope defining a cavity and provided with a resealable opening configured to allow insertion of a headlamp within the housing,
  • a light diffuser arranged for:
    • o receive a light beam from the headlamp and
    • o to diffuse said beam on the envelope,
the light diffuser being made of a translucent or transparent material so as to be traversed by said beam, the envelope being made of a translucent material.

Selon un mode de réalisation avantageux, le diffuseur de lumière peut être réalisé dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.According to an advantageous embodiment, the light diffuser can be made of a material chosen from the family of thermoplastic polyurethanes.

Le boîtier peut par ailleurs comporter un séparateur séparant la cavité en un premier logement configuré pour loger la lampe frontale, et un deuxième logement distinct du premier logement, le séparateur étant réalisé dans un matériau translucide ou transparent. Le séparateur peut être réalisé dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.The housing may further include a separator separating the cavity into a first housing configured to house the headlamp, and a second housing separate from the first housing, the separator being made of a translucent or transparent material. The separator may be made of a material chosen from the family of thermoplastic polyurethanes.

De manière préférée, le diffuseur de lumière et le séparateur peuvent être confondus.Preferably, the light diffuser and the separator can be merged.

Par ailleurs, le séparateur peut être bombé de sorte à former une paroi concave dans le premier logement. Il peut également être configuré pour bloquer le mouvement de la lampe frontale dans le premier logement.Furthermore, the separator can be curved so as to form a concave wall in the first housing. It can also be configured to block the movement of the headlamp in the first housing.

Selon un mode de réalisation avantageux, l'enveloppe du premier logement peut être réalisée dans un matériau élastiquement déformable, de sorte à permettre l'allumage et l'extinction de la lampe placée dans le boîtier. Plus précisément, l'enveloppe du premier logement peut être réalisée dans un matériau choisi parmi dans la famille des polyuréthanes thermoplastiques.According to an advantageous embodiment, the envelope of the first housing can be made of an elastically deformable material, so as to allow the ignition and extinguishing of the lamp placed in the housing. More specifically, the envelope of the first housing can be made of a material selected from the family of thermoplastic polyurethanes.

L'enveloppe du deuxième logement peut être par ailleurs être réalisée dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.The envelope of the second housing may also be made of a material chosen from the family of thermoplastic polyurethanes.

L'invention concerne également un procédé d'utilisation d'un boîtier diffuseur doté des caractéristiques précitées, et comportant les étapes suivantes :

  • fournir une lampe frontale,
  • positionner la lampe frontale dans la cavité du boîtier de protection, de sorte à diriger le faisceau vers l'enveloppe à travers le diffuseur de lumière,
  • allumer la lampe frontale en appuyant sur une zone élastiquement déformable de l'enveloppe.
The invention also relates to a method of using a diffuser housing having the aforementioned characteristics, and comprising the following steps:
  • provide a headlamp,
  • position the headlamp in the cavity of the protective case, so as to direct the beam towards the envelope through the light diffuser,
  • turn on the headlamp by pressing on an elastically deformable area of the envelope.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 représente de façon schématique un mode de réalisation d'un boîtier diffuseur de lumière,
  • la figure 2 illustre la façon dont une lampe frontale peut être rangée dans le boîtier de la figure 1,
  • la figure 3 présente une utilisation possible du boîtier selon le mode de réalisation illustré sur les figures 1 et 2.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention. given as non-limiting examples and shown in the accompanying drawings, in which:
  • the figure 1 schematically shows an embodiment of a light diffuser housing,
  • the figure 2 illustrates how a headlamp can be stowed in the housing of the figure 1 ,
  • the figure 3 presents a possible use of the housing according to the embodiment illustrated on the Figures 1 and 2 .

Description détailléedetailed description

Pour loger une lampe frontale 1, un boîtier 2 comporte avantageusement une enveloppe 3 définissant une cavité 4. L'enveloppe 3 est dotée d'une ouverture 5 refermable, qui permet l'insertion de la lampe frontale 1 à l'intérieur du boîtier 2. L'ouverture 5 peut par exemple être refermée au moyen d'une fermeture à glissière. Les bords de l'ouverture 5 peuvent être aimantés ou dotés d'une fermeture à glissière, par exemple une fermeture Eclair®, afin d'ouvrir et de refermer facilement le boîtier de protection 2.For housing a headlamp 1, a housing 2 advantageously comprises an envelope 3 defining a cavity 4. The envelope 3 is provided with a resealable opening 5, which allows the insertion of the headlamp 1 inside the housing 2 The opening 5 may for example be closed by means of a zipper. The edges of the opening 5 may be magnetized or provided with a zipper, for example an Eclair® closure, in order to easily open and close the protective case 2.

L'ouverture 5 peut être placée sur la partie latérale 3a de l'enveloppe 3, comme cela est représenté sur les figures. Lorsque le boîtier 2 est configuré pour être posé sur une surface plane, l'enveloppe 3 peut comporter un fond 3b faisant office de socle. L'ouverture 5 peut alors consister en des moyens de séparation entre le fond 3b et la partie latérale 3a. On peut par exemple imaginer que le fond 3b soit vissé sur la partie latérale 3a comme le serait un couvercle.The opening 5 can be placed on the lateral part 3a of the envelope 3, as shown in the figures. When the housing 2 is configured to be placed on a flat surface, the envelope 3 may comprise a bottom 3b serving as a base. The opening 5 may then consist of separation means between the bottom 3b and the lateral portion 3a. One can for example imagine that the bottom 3b is screwed on the side portion 3a as would be a cover.

Selon un mode de réalisation avantageux, le boîtier 2 peut être utilisé non seulement pour protéger la lampe frontale 1, mais aussi en tant que diffuseur de lumière (cf. fig. 2 et 3).According to an advantageous embodiment, the housing 2 can be used not only to protect the headlamp 1, but also as a light diffuser (cf. Fig. 2 and 3 ).

Pour que la lumière émise par la lampe frontale 1 soit diffusée dans le plus de directions possibles, le boîtier de protection 2 comporte avantageusement un diffuseur de lumière. Ce dernier est agencé d'une part pour recevoir un faisceau lumineux émis par la lampe 1, et d'autre part pour faire diffuser le faisceau sur l'enveloppe 3 du boîtier 2.In order for the light emitted by the headlamp 1 to be diffused in as many directions as possible, the protective case 2 advantageously comprises a light diffuser. The latter is arranged on the one hand to receive a light beam emitted by the lamp 1, and on the other hand to spread the beam on the envelope 3 of the housing 2.

Le diffuseur de lumière peut par exemple être mis en contact ou placé de façon suffisamment proche de la lampe frontale 1 afin d'empêcher cette dernière de bouger. Cela permet également d'optimiser la diffusion de la lumière vers l'enveloppe 3. Pour cela, des encoches ou des portions en saillie peuvent être prévues à l'intérieur de l'enveloppe pour caler le diffuseur de lumière dans le boîtier 2. Le diffuseur de lumière peut également être rendu solidaire de l'enveloppe 3 au moyen d'un jeu d'élastiques connectant les extrémités du diffuseur de lumière à la paroi interne de l'enveloppe 3.The light diffuser may for example be brought into contact or placed sufficiently close to the headlamp 1 to prevent it from moving. This also makes it possible to optimize the diffusion of light towards the envelope 3. For this, notches or protruding portions may be provided inside the envelope to wedge the light diffuser in the housing 2. The light diffuser can also be secured to the casing 3 by means of a set of elastics connecting the ends of the light diffuser to the inner wall of the casing 3.

Pour permettre la transmission de la lumière, le diffuseur de lumière est réalisé dans un matériau transparent ou translucide. Le matériau peut être choisi dans la famille des polyuréthanes thermoplastiques.To enable the transmission of light, the light diffuser is made of a transparent or translucent material. The material may be selected from the family of thermoplastic polyurethanes.

Le boîtier 2 peut également comporter un séparateur 6 monté avantageusement de manière amovible dans la cavité. Le séparateur 6 peut reposer sur des portions en saillies de l'enveloppe 3, ou être inséré dans des encoches prévues sur la paroi interne de l'enveloppe 3. La première solution peut être choisie de préférence lorsque le matériau du séparateur 6 est rigide, tandis que la deuxième solution est préférée lorsque le séparateur 6 peut subir une déformation élastique sans être fragilisé.The housing 2 may also comprise a separator 6 advantageously mounted removably in the cavity. The separator 6 may rest on protruding portions of the envelope 3, or be inserted into notches provided on the inner wall of the envelope 3. The first solution may preferably be chosen when the material of the separator 6 is rigid, while the second solution is preferred when the separator 6 can undergo elastic deformation without being weakened.

Le séparateur 6 est agencé de façon telle que la cavité est séparée en un premier logement 7 dont les dimensions permettent le stockage de la lampe frontale 1, et en un deuxième logement 8 configuré pour permettre la transmission de la lumière émise par la lampe frontale 1 vers l'extérieur du boîtier 2 à travers le deuxième logement 8.The separator 6 is arranged in such a way that the cavity is separated into a first housing 7, the dimensions of which allow the storage of the headlamp 1, and a second housing 8 configured to allow the transmission of the light emitted by the headlamp 1 towards the outside of the housing 2 through the second housing 8.

La position du séparateur 6 dans la cavité 4 est adaptée pour que le séparateur 6 empêche le mouvement de la lampe frontale 1 dans le premier logement 7. De cette façon, lorsque la lampe frontale 1 est correctement positionnée dans le premier logement, les performances du boîtier de protection 2 en tant que diffuseur de lumière sont optimales.The position of the separator 6 in the cavity 4 is adapted so that the separator 6 prevents the movement of the headlamp 1 in the first housing 7. In this way, when the headlamp 1 is correctly positioned in the first housing, the performance of the 2 protective housing as light diffuser are optimal.

Selon un mode de réalisation particulier (non représenté), on peut imaginer qu'une partie de l'enveloppe 3 ait des sections de formes et de dimensions identiques, ce qui permet de placer le séparateur 6 dans diverses positions afin de permettre le logement de lampes frontales 1 de différentes tailles. Cela rend le boîtier particulièrement polyvalent.According to a particular embodiment (not shown), it is conceivable that part of the envelope 3 has sections of identical shapes and dimensions, which makes it possible to place the separator 6 in various positions in order to allow the housing of headlamps 1 of different sizes. This makes the case particularly versatile.

Il est également possible que l'enveloppe du premier logement 7 soit élastiquement déformable, pour permettre l'insertion de différentes formes de lampes frontales 1.It is also possible that the casing of the first housing 7 is elastically deformable, to allow the insertion of different forms of headlamps 1.

Par ailleurs le séparateur 6 peut avoir une forme adaptée à la forme de la lampe frontale 1 pour ne pas l'endommager. Par exemple, lorsque la lampe frontale est bombée, il peut être avantageux que la paroi du séparateur 6 fermant le premier logement soit concave. Cela permet de limiter le risque de griffe sur le boîtier optique de la lampe 1, qui est orienté vers le séparateur 6.Furthermore the separator 6 may have a shape adapted to the shape of the headlamp 1 to not damage it. For example, when the headlamp is curved, it may be advantageous that the wall of the separator 6 closing the first housing is concave. This limits the risk of scratching on the optical housing of the lamp 1, which is directed towards the separator 6.

Pour permettre la transmission de la lumière émise par la lampe frontale 1 en direction du deuxième logement 8, le séparateur 6 est avantageusement réalisé dans un matériau translucide ou transparent. Le matériau est choisi dans la famille des polyuréthanes thermoplastiques.To allow transmission of the light emitted by the headlamp 1 towards the second housing 8, the separator 6 is advantageously made of a translucent or transparent material. The material is chosen from the family of thermoplastic polyurethanes.

Etant donné que le séparateur 6 divise la cavité 4 en deux logements, le diffuseur de lumière peut être agencé d'une part pour recevoir un faisceau lumineux émis par la lampe 1 en provenance du premier logement 7, et d'autre part pour faire diffuser le faisceau sur l'enveloppe du deuxième logement 8. Le diffuseur de lumière et le séparateur 6 peuvent par exemple être positionnés de manière parallèle, et être avantageusement l'un contre l'autre pour limiter au maximum la diminution de l'intensité lumineuse lors du passage du faisceau du premier logement 7 vers le deuxième logement 8. Des encoches ou des portions en saillie sont alors prévues à l'intérieur de l'enveloppe pour caler le diffuseur de lumière dans le boîtier 2.Since the separator 6 divides the cavity 4 into two housings, the light diffuser can be arranged on the one hand to receive a light beam emitted by the lamp 1 from the first housing 7, and on the other hand to diffuse the beam on the envelope of the second housing 8. The light diffuser and the separator 6 may for example be positioned in parallel, and advantageously be against each other to minimize the decrease in light intensity when the passage of the beam from the first housing 7 to the second housing 8. Slots or projecting portions are then provided inside the casing to wedge the light diffuser in the housing 2.

Afin de gagner en compacité, le séparateur 6 et le diffuseur de lumière peuvent être formés dans une seule pièce réalisée en deux matériaux différents. Dans ce cas, le séparateur 6 correspond avantageusement à la paroi située du côté du premier logement 7, tandis que le diffuseur de lumière correspond à la paroi du deuxième logement 8.In order to gain compactness, the separator 6 and the light diffuser can be formed in a single piece made of two different materials. In this case, the separator 6 advantageously corresponds to the wall located on the side of the first housing 7, while the light diffuser corresponds to the wall of the second housing 8.

Le séparateur 6 et le diffuseur de lumière peuvent également être confondus, c'est-à-dire être réalisés en une seule pièce formée dans un unique matériau. Le matériau est avantageusement translucide et diffuse la lumière de préférence dans l'ensemble du deuxième logement 8.The separator 6 and the light diffuser can also be merged, that is to say be made in one piece formed in a single material. The material is advantageously translucent and diffuses the light preferably throughout the second housing 8.

Pour que le boîtier face office de diffuseur de lumière, l'enveloppe du deuxième logement 8 est également réalisée dans un matériau qui diffuse la lumière. Celui-ci peut être choisi dans la famille des polyuréthanes thermoplastiques. Le matériau peut avantageusement être traité anti UV.In order for the case to face the light diffuser, the casing of the second housing 8 is also made of a material that diffuses light. This may be chosen from the family of thermoplastic polyurethanes. The material may advantageously be treated against UV.

De manière générale, l'enveloppe comporte une zone élastiquement déformable 9 au voisinage de l'endroit où la lampe 1 est placée dans la cavité 4, de sorte à permettre l'allumage et l'extinction de cette dernière. Lorsque le boîtier comporte un séparateur 6, la zone 9 élastiquement déformable est placée sur l'enveloppe du premier logement 7. La zone 9 peut par exemple prendre la forme d'un bouton-poussoir. Il faut alors veiller à ce que le bouton-poussoir de la lampe frontale 1 soit placé en vis-à-vis de la zone 9.In general, the envelope comprises an elastically deformable zone 9 in the vicinity of the place where the lamp 1 is placed in the cavity 4, so as to enable the latter to switch on and off. When the housing comprises a separator 6, the zone 9 elastically deformable is placed on the envelope of the first housing 7. The zone 9 may for example take the form of a push-button. It must then be ensured that the push-button of the headlamp 1 is placed opposite the zone 9.

L'ensemble de l'enveloppe du premier logement 7 peut avantageusement être réalisée en matériau élastiquement déformable, pour que la lampe frontale 1 puisse être placée de manière quelconque dans le premier logement à condition que la zone d'éclairage soit dirigée vers le séparateur 6, et donc vers le deuxième logement 8. L'enveloppe du premier logement 7 peut être réalisée dans un matériau choisi dans la famille des polyuréthanes thermoplastiques. Comme pour le deuxième logement 8, le matériau du premier logement 7 peut être traité anti UV pour qu'il se dégrade moins vite en cas d'exposition prolongée aux ultra-violets.The entire envelope of the first housing 7 can advantageously be made of elastically deformable material, so that the headlamp 1 can be placed in any way in the first housing provided that the lighting zone is directed towards the separator 6 , and therefore to the second housing 8. The envelope of the first housing 7 may be made of a material selected from the family of thermoplastic polyurethanes. As for the second housing 8, the material of the first housing 7 can be treated against UV so that it degrades less quickly in case of prolonged exposure to ultraviolet.

Selon un mode de réalisation particulier du boîtier 2, il est envisageable d'utiliser un même matériau pour former l'enveloppe 3, et le séparateur 6 qui est confondu avec le diffuseur de lumière. Le fait de n'utiliser qu'un seul matériau permet de simplifier le processus de fabrication du boîtier 2, qui peut par exemple être réalisé par surmoulage. Le matériau doit être à la fois, translucide, diffuseur de lumière et élastiquement déformable.According to a particular embodiment of the housing 2, it is conceivable to use the same material to form the envelope 3, and the separator 6 which is coincident with the light diffuser. The fact of using a single material simplifies the manufacturing process of the housing 2, which can for example be made by overmolding. The material must be both translucent, light diffusing and elastically deformable.

Le boîtier 2 peut avantageusement être muni d'une sangle (non représentée) fixée par exemple sur la paroi externe du fond 3b. La sangle peut également être située sur la partie latérale 3a de l'enveloppe 3, mais cette configuration n'est pas optimale car elle empêche la diffusion de la lumière dans la zone où elle est accrochée. Quelle que soit la position de la sangle sur le boîtier 2, celle-ci peut faciliter l'accrochage du boîtier 2 à un sac. Le boîtier 2 peut par exemple être solidaire d'une sangle de serrage ventrale d'un sac à dos.The housing 2 may advantageously be provided with a strap (not shown) fixed for example on the outer wall of the bottom 3b. The strap may also be located on the side portion 3a of the casing 3, but this configuration is not optimal because it prevents the diffusion of light in the area where it is attached. Whatever the position of the strap on the housing 2, it can facilitate the attachment of the housing 2 to a bag. The housing 2 may for example be secured to a ventral clamping strap of a backpack.

Le boîtier 2 peut également comprendre un crochet (non représenté) sur la face externe de l'enveloppe 3 pour permettre sa suspension. Ainsi, pendant les temps de repos nocturnes, par exemple pendant un bivouac ou un repas, le boîtier 2 peut faire office de lanterne et éclaire l'environnement avec une lumière diffuse. Cela est particulièrement agréable lorsque plusieurs personnes partagent ce temps de repos, car si les utilisateurs portent leurs frontales sur la tête, ils s'éblouissent les uns les autres dès qu'ils se regardent.The housing 2 may also include a hook (not shown) on the outer face of the casing 3 to allow its suspension. Thus, during the night rest periods, for example during a bivouac or a meal, the housing 2 can act as a lantern and illuminates the environment with a diffuse light. This is particularly enjoyable when many people share this time off, because if users wear their head on their head, they dazzle each other as soon as they look at each other.

Pour utiliser le boîtier de protection 2 en tant que diffuseur de lumière, il faut tout d'abord insérer la lampe frontale 1 dans la cavité 4 et la positionner de telle sorte qu'elle émette la lumière vers l'enveloppe 3. Le diffuseur de lumière est ensuite positionné à l'intérieur de la cavité 4 et maintenu contre la lampe frontale 1. Le boîtier 2 peut alors être refermé, et la lampe frontale 1 peut être allumée en appuyant sur la zone 9 élastiquement déformable. Il suffit alors de poser ou de suspendre le boîtier 2 au niveau de l'espace qui doit être éclairé. Lorsque l'utilisateur n'a plus besoin d'être éclairé, la lampe frontale 1 peut être éteinte en appuyant à nouveau sur la zone 9.To use the protective housing 2 as a light diffuser, it is first necessary to insert the headlamp 1 in the cavity 4 and position it so that it emits light towards the envelope 3. The diffuser of The light is then positioned inside the cavity 4 and held against the headlamp 1. The housing 2 can then be closed, and the headlamp 1 can be turned on by pressing on the region 9 elastically deformable. It is then sufficient to place or suspend the housing 2 at the level of the space to be illuminated. When the user no longer needs to be illuminated, the headlamp 1 can be extinguished by pressing the zone 9 again.

Le séparateur 6 peut être ajouté afin d'améliorer le maintien de la lampe frontale 1 dans une zone donnée. Dans ce cas le séparateur 6 et le diffuseur de lumière peuvent être positionnés à l'intérieur de la cavité en les calant dans les encoches ou sur les portions en saillies prévues à cet effet.The separator 6 can be added to improve the maintenance of the headlamp 1 in a given area. In this case the separator 6 and the light diffuser can be positioned inside the cavity by wedging them in the notches or on the projecting portions provided for this purpose.

L'utilisation d'un boîtier de protection 2 tel que celui qui vient d'être décrit est particulièrement avantageuse, car le boîtier 2 remplit plusieurs rôles à la fois. Non seulement le boîtier 2 protège la lampe, mais il peut également servir de lampe d'appoint lorsque l'utilisateur a besoin d'une lumière diffuse, par exemple en bivouac. L'utilisateur n'a plus besoin de multiplier les accessoires de lampe frontale, ce qui représente à la fois un gain de poids et d'encombrement.The use of a protective housing 2 such as that just described is particularly advantageous because the housing 2 performs several roles at a time. Not only the housing 2 protects the lamp, but it can also serve as a backup lamp when the user needs a diffuse light, for example in bivouac. The user no longer needs to multiply the headlamp accessories, which represents both a gain in weight and space.

Claims (11)

Boîtier diffuseur de lumière (2) comprenant : • une enveloppe (3) définissant une cavité (4) et pourvue d'une ouverture (5) refermable configurée pour permettre l'insertion d'une lampe frontale (1) à l'intérieur du boîtier (2), • un diffuseur de lumière agencé pour : o recevoir un faisceau lumineux en provenance de la lampe frontale (1) et o faire diffuser ledit faisceau sur l'enveloppe (3), le diffuseur de lumière étant réalisé dans un matériau translucide ou transparent de manière à être traversé par ledit faisceau, l'enveloppe (3) étant réalisée dans un matériau translucide. Light diffuser housing (2) comprising: An envelope (3) defining a cavity (4) and provided with a reclosable opening (5) configured to allow the insertion of a headlamp (1) inside the casing (2), A light diffuser arranged for: o receive a light beam from the headlamp (1) and o diffuse said beam on the envelope (3), the light diffuser being made of a translucent or transparent material so as to be traversed by said beam, the envelope (3) being made of a translucent material. Boîtier (2) selon la revendication 1, dans lequel le diffuseur de lumière est réalisé dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.Housing (2) according to claim 1, wherein the light diffuser is made of a material selected from the family of thermoplastic polyurethanes. Boîtier (2) selon l'une quelconque des revendications 1 ou 2, comportant un séparateur (6) séparant la cavité (4) en un premier logement (7) configuré pour loger la lampe frontale (1), et un deuxième logement (8) distinct du premier logement (7), le séparateur (6) étant réalisé dans un matériau translucide ou transparent.Housing (2) according to any one of claims 1 or 2, comprising a separator (6) separating the cavity (4) into a first housing (7) configured to house the headlamp (1), and a second housing (8). ) separate from the first housing (7), the separator (6) being made of a translucent or transparent material. Boîtier (2) selon la revendication 3, dans lequel le séparateur (6) est réalisé dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.Housing (2) according to claim 3, wherein the separator (6) is made of a material selected from the family of thermoplastic polyurethanes. Boîtier (2) selon l'une quelconque des revendications 3 ou 4, dans lequel le diffuseur de lumière et le séparateur (6) sont confondus.Housing (2) according to any one of claims 3 or 4, wherein the light diffuser and the separator (6) are merged. Boîtier (2) selon l'une quelconque des revendications 3 à 5, dans lequel le séparateur (6) comporte une paroi concave dans le premier logement (7).Housing (2) according to any one of claims 3 to 5, wherein the separator (6) has a concave wall in the first housing (7). Boîtier (2) selon l'une quelconque des revendications 3 à 6, dans lequel le séparateur (6) est configuré pour bloquer le mouvement de la lampe frontale (1) dans le premier logement (7).Housing (2) according to any one of claims 3 to 6, wherein the separator (6) is configured to block the movement of the headlamp (1) in the first housing (7). Boîtier (2) selon l'une quelconque des revendications 1 à 7, dans lequel l'enveloppe du premier logement (7) est réalisée dans un matériau élastiquement déformable, de sorte à permettre l'allumage et l'extinction de la lampe frontale (1) placée dans le boîtier (2).Housing (2) according to any one of claims 1 to 7, wherein the casing of the first housing (7) is made of an elastically deformable material, so as to allow the lighting and extinguishing of the headlamp ( 1) placed in the housing (2). Boîtier (2) selon la revendication 8, dans lequel l'enveloppe du premier logement (7) est réalisée dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.Housing (2) according to claim 8, wherein the casing of the first housing (7) is made of a material selected from the family of thermoplastic polyurethanes. Boîtier (2) selon l'une quelconque des revendications 1 à 9, dans lequel l'enveloppe du deuxième logement (8) est réalisée dans un matériau choisi dans la famille des polyuréthanes thermoplastiques.Housing (2) according to any one of claims 1 to 9, wherein the casing of the second housing (8) is made of a material selected from the family of thermoplastic polyurethanes. Procédé d'utilisation d'un boîtier diffuseur de lumière (2) selon l'une quelconque des revendications 1 à 10, comportant les étapes suivantes : • fournir une lampe frontale (1), • positionner la lampe frontale (1) dans la cavité (3) du boîtier de protection (2), de sorte à diriger le faisceau vers l'enveloppe (3) à travers le diffuseur de lumière, • allumer la lampe frontale (1) en appuyant sur une zone (9) élastiquement déformable de l'enveloppe (3). A method of using a light diffuser housing (2) according to any one of claims 1 to 10, comprising the steps of: • provide a headlamp (1), • position the headlamp (1) in the cavity (3) of the protective housing (2), so as to direct the beam towards the envelope (3) through the light diffuser, • turn on the headlamp (1) by pressing on an elastically deformable zone (9) of the envelope (3).
EP17177369.0A 2016-06-23 2017-06-22 Light diffuser casing Active EP3260762B1 (en)

Applications Claiming Priority (1)

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FR1655892A FR3053096B1 (en) 2016-06-23 2016-06-23 LIGHT DIFFUSER HOUSING

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EP3260762B1 EP3260762B1 (en) 2019-12-18

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2986304A1 (en) * 2012-01-26 2013-08-02 La Tribouille-Bonnier Ghilain De Lighting device, has blank that is partially translucent in mounted state, and end faces that are folded back inside body in mounted state of body with spacing of longitudinal faces, where end faces are attached with each other by gluing
US20130308305A1 (en) * 2012-05-16 2013-11-21 Alissa Arndt Baby monitor light
KR200479342Y1 (en) * 2015-06-23 2016-01-15 홍순창 Lighting box

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120008309A1 (en) * 2010-06-02 2012-01-12 Hale Eric C Headlamp and Lantern System

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2986304A1 (en) * 2012-01-26 2013-08-02 La Tribouille-Bonnier Ghilain De Lighting device, has blank that is partially translucent in mounted state, and end faces that are folded back inside body in mounted state of body with spacing of longitudinal faces, where end faces are attached with each other by gluing
US20130308305A1 (en) * 2012-05-16 2013-11-21 Alissa Arndt Baby monitor light
KR200479342Y1 (en) * 2015-06-23 2016-01-15 홍순창 Lighting box

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US10012364B2 (en) 2018-07-03
EP3260762B1 (en) 2019-12-18
FR3053096B1 (en) 2018-07-27
CN207486712U (en) 2018-06-12
US20170370545A1 (en) 2017-12-28
FR3053096A1 (en) 2017-12-29

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