FR3023355A1 - ROTARY TUBES PROJECTOR - Google Patents

Abstract

Projector (1) comprising: - at least two rotating light tubes (2a, 2b) comprising as lighting means at least one light-emitting diode component, - an armature (3) on which the light tubes (2a, 2b) are pivotally mounted ) along their respective longitudinal axis, - means for independently varying the luminous intensity and / or the luminous color of each tube (2a, 2b), characterized in that the armature (3) is combined with a device gripper formed by: - at least one lyre (5) whose body (50) extends at the rear of the armature (3) which body has a translation means (51), - a body of hooking (7) to connect the armature (3) to the lyre (5), which fastening member (7) is integral with said armature (3) and slidably and pivotally mounted in the translation means (51) so said armature (3) can be moved and pivoted with respect to said lyre (5), - another fastening member (8) for connecting er lyre (5) to a support (6), which other attachment member (8) is provided with a fixing means to said support (6) and is slidably and pivotably mounted in the translation means (51) of so that said lyre (5) can be moved and pivoted relative to said other fastening member (8).

Description

2 - 3 - 1 - PROJECTOR TU3ES ROTA FS Description Technical field of the invention. The invention relates to a rotating tube projector. It also relates to an installation using such a projector as well as a device for attaching the projector. It concerns the technical field of lighting devices intended for public or private places and more specifically those for uniformly illuminating vertical, horizontal or inclined surfaces. State of the art Many public and private places use spotlights to provide effective and pleasant illumination of a surface to be illuminated. When lighting sources are installed in exhibitions of works of art, such as a museum or an art gallery, special lighting is needed to optimize the development of these works.

The patent documents (US 2010/0259931 (DIGITAL LUMENS, INC), US 2012/0212953 (BLOOM), US 6,652,119 (BARTON, BM), US 2002/0003699 (SHEMITZ, FORD)) describe projectors possessing several light tubes presenting themselves. in the form of fluorescent tubes, halogen tubes or tubes using LED technology. In all cases, these projectors replace the spots usually used so as to provide a more uniform light with a much larger radiation angle. More particularly, the document US Patent 2012/0062129 (PRIORITY LED LIGHTING, LLC) proposes a projector having several light tubes. The light tubes are pivotally mounted on a frame and have their own power supply, allowing to manage the intensity of each, independently of each other. It is thus possible to create, if necessary, asymmetrical lighting. This type of lighting is characterized by an asymmetric distribution of the luminous intensity with respect to an axis or plane of symmetry and makes it possible to illuminate vertical surfaces effectively. This type of lighting is particularly used in the case of works of art and more particularly in the case of paintings for which the lighting from above is disadvised. Indeed optimal lighting is obtained when the lighting cone formed by the luminous flux has the upper limit of the table rail. The projector described in the aforementioned patent document provides such illumination using light tubes that can be rotated to obtain the desired radiation angle. These projectors are usually attached directly to the wall, ceiling or floor. They can replace lights already installed but can not be superimposed on them. They illuminate the entire object in a uniform manner, forcing the user to add focused light spots in the event that the latter wishes to highlight an element or a specific part of the object. These spots must then be positioned at a different location of the projector, which has the consequence of not only complicating the installation but also not to provide optimal illumination of the object. The invention aims to remedy this state of affairs. In particular, an object of the invention is to provide a projector whose attachment device allows the simultaneous use of more focused spots. Another object of the invention is to provide a projector whose attachment device optimizes the illumination of an object.

Disclosure of the invention. The solution proposed by the invention is a headlamp comprising: at least two rotating light tubes comprising as illumination means at least one light-emitting diode component; an armature on which the light tubes are pivotally mounted according to their respective longitudinal axis, means for independently varying the light intensity and / or the luminous color of each tube.

This projector is remarkable in that the armature is combined with an attachment device formed by: - at least one lyre whose body extends to the rear of the armature, which body has a translational means, - an attachment member for connecting the armature to the lyre, which fastening member is integral with said armature and slidably and pivotably mounted in the translation means so that said armature can be moved and pivoted with respect to said lyre, - Another attachment member for connecting the lyre to a support, which other attachment member is provided with a fixing means to said support and is slidably mounted and pivoted in the translation means so that said lyre can be moved and rotated relative to said other fastener. Such a hooking device allows to deport the projector relative to the support so as to leave a space between said projector and said support allowing the installation of more focused spots. In addition, this attachment device - 4 - uses LED light sources and gives the possibility of adjusting the position, the intensity and the lighting angle of the light tubes. Other advantageous features of the invention are listed below. Each of these characteristics can be considered alone or in combination with the remarkable features defined above, which remarkable characteristics are not indispensable as such to the resolution of technical problems and that the following characteristics propose to solve: - the attachment system may consist of one or more lyres arranged symmetrically on each side of the frame, - the translation means may be a rectilinear or curved longitudinal rail, - the translation means may be in the form of several fixing holes, which openings are arranged longitudinally, - the attachment member and the lyre can be in the form of a single element, - the projector can be equipped with two reflectors, which reflectors are installed so as to be parallel to the longitudinal axes of rotation of the light tubes, the reflectors may comprise a means for adjusting their inclination in the axial direction of the light tubes; - the means for independently varying the light intensity of each tube can be adjusted so that the intensity of the first tube is less than the intensity of the second tube; - The lyre may be steel or plastic. Another aspect of the invention is an installation comprising a projector according to the invention and at least one focused spot, which spot is fixed on the support in the space formed between the light tubes and said support. The support may be a rail integral with the attachment means connecting it to the lyre. Yet another aspect of the invention is an attachment device for installing a projector. This device is remarkable in that it comprises: - at least one lyre whose body has a longitudinal rail, - a fastening member adapted to connect the projector to the lyre, which fastening member is slidably mounted and pivoted in the translation means so that said projector can be moved and pivoted relative to said lyre, - another attachment member adapted to connect the lyre to a support, which other attachment member is provided with a fixing means said support and is slidably mounted and pivoted in the translation means so that said lyre can be moved and pivoted relative to said other fastening member.

Description of the figures. Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which follows, with reference to the accompanying drawings, made by way of indicative and non-limiting examples and in which: FIG. 1 is a diagrammatic perspective view of a headlight according to the invention; FIG. 2 is a section along AA of the headlight of FIG. 1; FIG. 3 illustrates an installation according to the invention; FIGS. 4a to 4e illustrate different forms of lyre according to the invention, - Figure 5 is a perspective view of a projector according to the invention mounted on a support. Preferred embodiments of the invention. In Figure 1, the projector 1 object of the invention comprises two rotating light tubes 2a, 2b. These light tubes 2a, 2b preferentially contain light sources such as light-emitting diodes (LED or LED), but they can also be in the form of fluorescent, halogen, or other tubes. These tubes 2a, 2b are of cylindrical shape, have a length that can vary from 10cm to 2m and a diameter ranging from 2cm to 10cm. In the appended figures, these tubes 2a, 2b are horizontal but they can be positioned vertically depending on where the projector 1 is positioned and / or according to the characteristics of the object to be illuminated. When the tubes 2a, 2b used are LED tubes, the light can be adjusted independently for each of them. It can be chosen from the warm white (diffusing a yellow light), the cold white (diffusing a blue light) or even the neutral white (diffusing a white light). This feature allows adjustment of the tubes 2a, 2b and therefore the projector 1 according to the desired use.

The light tubes 2a, 2b are rotatably mounted on a frame 3 along their respective longitudinal axis 21a, 21b. Each of the light tubes can thus rotate independently about its axis 21a, 21b so as to vary the orientation of its luminous flux. The frame 3 can be made of a plastic or composite material thus limiting the final weight of the projector 1, or in another more resistant material such as steel or aluminum. It has two ends 30a, 30b placed at each of the two ends of the tubes 2-, ', 71). Referring to Figure 2, each end 30a, 30b has cylindrical housings 300a, 300b in which the ends of the tubes 2a, 2b are inserted. These housings 300a, 300b are adapted to block the longitudinal movements of the tubes 2a, 2b while leaving a degree of freedom in rotation about the respective longitudinal axes 21a, 21b. At least one of the ends 30a and / or 30b of the armature 3 has means for electrical connection to a current source, in order to electrically power the light tubes 2a, 2b and to turn them on or off. A manually operated or infrared switch can be added to the projector 1 so as to allow easier use. The armature 3 is not limited to the embodiment described in Figure 2, but can be in any form suitable to the skilled person and allowing the tubes 2a, 2b to be free in rotation. The armature 3 may further comprise a cover (not shown in the figures) positioned at the rear of the tubes and avoiding any unwanted light leaks. The power supply of the projector 1 is coupled to a dimmer which makes it possible to vary the power and thus the illumination intensity of each light tube 2a, 2b. This drive can be installed directly on the frame 3 or have a remote control installed at a desired location of the room to be illuminated. This configuration makes it possible to vary the intensities of the light tubes 2a and 2b independently and thus to create either symmetrical lighting when the two intensities are identical, or asymmetrical lighting when the two intensities are dissimilar. In the case of a table light, this mode is very useful since it makes it possible to obtain a configuration in which the intensity of the lower light tube 2b is greater than that of the upper light tube 2a, thus forming a uniform illumination on the entire picture.

3 illustrates an installation in which the projector 1 comprises two light tubes 2a, 2b for illuminating an object, and preferably for the lighting of a table T. The latter is hung on a vertical wall MV. The projector 1 is installed on a ceiling P at a height that can be between 180cm and 400cm. The distance between the projector 1 and the board is between 2m and 10m. The angular position of the upper tube 2a and the lower tube 2b - 8 - is adjusted so that the respective radiation angles a and 3 form illumination cones 22a and 22b. The angles of radiation a and 13 depend on the type of light sources used (LEDs, halogens, fluorescents ...) and will be chosen before installation when choosing the light tubes. These angles have values that can be between 10 ° and 120 °. The intensity in each of the illumination cones 22a, 22b is identical and makes it possible to create uniform illumination on the whole of the array T. In FIG. 1, reflectors 9a and 9b have been added to the projector 1 so as to decrease the illumination. radiation angle (a, 13) and thus the angle of the lighting cone (22a, 22b), and thus obtain a more focused light on the object T. In addition to this use, the reflectors 9a and 9b allow also to prevent the light is reflected on the ceiling P and decreases the quality of the lighting. The lower reflector 9b is also used to hide the light sources 2a and 2b and thus to increase the aesthetics of the projector 1, thus making it more attractive to the user. These reflectors 9a, 9b are made of light reflecting materials, such as a metal or a plastic material covered with a reflective material, and have a length corresponding to the length of the light tubes 2a, 2b. Their width can vary between 5cm and 40cm depending on the desired reflection efficiency. They extend towards the front of the projector 1 and are partially hinged so as to adjust their inclination. As shown in Figure 1, the armature 3 described above is combined with a fastening device for installing the projector 1 on a support 6. This attachment device may comprise a lyre 5 arranged at the level of the one end 30a, 30b of the frame 3, or more depending on the size of the projector 1, its weight and the desired rigidity for installation. In the case where the projector 1 comprises two lyres 5, they are arranged symmetrically on each side of the armature 3 so as to balance the weight of the projector. The lyre 5 can be made of plastic or composite material to impart lightness to the attachment device, but can also be made of steel or aluminum for greater rigidity. It is represented in FIG. 1, and comprises a body 50 which has a translational means 51. In a preferred embodiment of the invention, it is in the form of an integral longitudinal rail (FIG. 4a) which extends between the two ends 5a, 5b of the body 50. It may also be in the form of two sections as illustrated in FIG. 4b or may be in the form of several orifices made in the body 50 of the lyre 5. The body 50 and / or the translation means 51 of the lyre 5 may be rectilinear (FIGS. 4a and 4b), or curved having for example a semicircle shape (FIG. 4c), a curved shape (Figure 4d), an S shape (Figure 4e) or any other form suitable to the skilled person. The body 50 has a width that will depend on the size of the projector 1 and varies between 1cm and 5cm.

The lyre 5 is secured to the frame 3 by means of a fastening member 7. This fastening member 7 is mounted in the translation means 5l so as to be able to pivot and be displaced therein. It may be in the form of a pin or a bearing inserted in the translation means 51 and be associated with a clamping element type clamping. It may also consist of a threaded rod or a screw, associated with a clamping element which may be in the form of a nut or a bolt. It may also be in the form of a locking lever consisting of a bearing and a locking cam or in the form of a knurled knob passing through the translation means 51 and coming to screw on the frame 3.

Symmetrically to the attachment member 7 described above, the lyre 5 is connected to a support 6 by means of another attachment member 8. This can be in forms similar to those described in FIG. preceding paragraph and is also mounted so as to be pivotable and movable in the translation means 51. The support 6 may be in various forms. It can be fixed, such as a wall, a ceiling, or a beam. It can be in the form proposed in Figure 5, namely in the form of a longitudinal rail. This rail can be installed on a ceiling P or on a wall, and allows to obtain even more freedom with respect to the movements of the projector 1 since it adds an additional movement by making it possible to move the projector 1 along the rail 6 in parallel or perpendicular to the MV wall on which the T-panel is installed. This system can also be used to maintain the same installation when the elements to be illuminated vary from exposure to exposure, thus considerably reducing the costs related to lighting. Indeed, when changing exposures, the rail provides optimal lighting by placing each projector 1 in front of objects T to illuminate. In certain situations, it may be necessary to obtain more focused lighting on a part of the object T to be illuminated. Figures 3 and 5 show spots 10 installed in addition to the projector 1. The lyre-shaped hanging device 5 described above allows to deport the projector 1 relative to the wall or ceiling P on which it is installed to create a space between the wall (or ceiling) and the light tubes 2a, 2b. Thus the attachment member 8 of the lyre 5 can move in the translation means 51, thus allowing the user to choose the distance between the wall and the projector 1, and to install at least one light spot 10 in the space thus created. These spots 10 form a narrow lighting cone 22c which allows focusing the lighting on a particular element of the table. They may be LED technology spots, halogens, fluorescent spots, or any other spot suitable for the skilled person. The user can choose to install one or more depending on the number and / or dimensions of the object T. The arrangement of the various elements and / or means and / or steps of the invention, in the embodiments described above, should not be understood as requiring such an arrangement in all implementations. In any case, it will be understood that various modifications may be made to these elements and / or means and / or steps, without departing from the spirit and scope of the invention. In particular: the materials used, the type of light tubes used 2a, 2b, the number of light tubes 2a, 2b used which may be greater or less than two, the shape of the lyre and / or the body 50 and / or translation means 51, - the type of attachment means used, - the type of support 6, - the use or not of reflectors 9a, 9b, - the installation of the projector 1 on a floor or on a piece of furniture.

Claims (14)

REVENDICATIONS1. Projector (1) comprising: - at least two rotating light tubes (2a, 2b) comprising as lighting means at least one light-emitting diode component, - an armature (3) on which the light tubes (2a, 2b) are pivotally mounted ) according to their respective longitudinal axis (21a, 21b), - means for independently varying the luminous intensity and / or the luminous color of each tube (2a, 2b), characterized in that the armature (3) is combined with an attachment device formed by: - at least one lyre (5) whose body (50) extends behind the armature (3) which body has a translation means (51), - A fastening member (7) for connecting the armature (3) to the lyre (5), which fastening member (7) is integral with said armature (3) and slidably and pivotally mounted in the translation means (51) so that said armature (3) can be moved and pivoted with respect to said lyre (5), - another attachment member ( 8) for connecting the lyre (5) to a support (6), which other attachment member (8) is provided with a fixing means to said support (6) and is slidably and pivotably mounted in the translation means ( 51) so that said lyre (5) can be moved and pivoted with respect to said other fastening member (8). 2. Projector according to claim 1 characterized in that the attachment device consists of a single lyre (5). 3. Projector according to claim 1 characterized in that the attachment device consists of two lyres (5) arranged symmetrically on each side of the armature (3). 3 0 2 3 3 5 5 -13- 4. Projector according to one of claims 1 to 3 characterized in that the translation means (51) is a longitudinal rail. 5. Projector according to claim 4 characterized in that the longitudinal rail (51) is rectilinear or curved. 6. Projector according to one of claims 1 to 3 characterized in that the translation means (51) is in the form of a plurality of fixing holes, which orifices are arranged longitudinally. 10 7. Projector according to one of claims 1 to 6 characterized in that the fastening member (8) and the lyre (5) form a single element. 8. Projector according to one of claims 1 to 7 characterized in that it is equipped with two reflectors (9a, 9b), which reflectors (9a, 9b) are installed so as to be parallel to the longitudinal axes of rotation ( 21a, 21b) of the light tubes (2a, 2b). 9. Projector according to claim 8 characterized in that the reflectors 20 (9a, 9b) comprise means for adjusting their inclination in the axial direction of the light tubes (2a, 2b). Projector according to one of Claims 1 to 9, characterized in that the means for independently varying the light intensity of each tube (2a, 2b) is adjusted so that the intensity of the first tube ( 2a) is less than the intensity of the second tube (2b). 11. Projector according to one of claims 1 to 10 characterized in that the lyre (5) is made of steel or plastic. 30 12. Installation comprising a projector according to claim 1 and at least one focused spot (10), which spot is fixed on the support (6) in the space formed between the light tubes (2a, 2b) and said support (6) .- 14 - 13. Installation according to claim 12 characterized in that the support (6) is a rail, which rail is integral with the attachment means (8) connecting it to the lyre (5). 14. Fastening device for the installation of a projector (1) characterized in that it comprises: - at least one lyre (5) whose body (50) has a longitudinal rail (51), - a fastener (7) adapted to connect the projector 1 to the lyre (5), which fastening member (7) is slidably and pivotally mounted in the translation means (51) so that said projector (1) can to be moved and pivoted relative to said lyre (5), - another attachment member (8) adapted to connect the lyre (5) to a support (6), which other attachment member (8) is provided with a fixing means to said support (6) and is slidably and pivotably mounted in the translation means (51) so that said lyre (5) can be moved and pivoted with respect to said other fastening member (8).