LIGHT SHAPING DEVICE AND ARRANGEMENT

Abstract

A self-expanding light shaping device for being separably mounted on a fastening arrangement of a lighting device is provided. The light shaping device features sidewalls of flexible material, which after the mounting on the lighting device surround a light shaping and light emitting region formed between an inlet opening and an outlet opening, tensioning elements designed for stabilizing the sidewalls and a fastening mechanism for separably mounting the light shaping device on the fastening arrangement of the lighting device, wherein the outlet opening is realized in the form of a round outlet opening, which is at least sectionally enclosed by a frontal tensioning element that expands the flexible material of the sidewalls.

Claims

1. A light shaping device for being separably mounted on a fastening arrangement of a lighting device, comprising: sidewalls of flexible material, which after the mounting on the lighting device surround a light shaping and light emitting region formed between an inlet opening and an outlet opening, tensioning elements designed for stabilizing the sidewalls, and a fastening mechanism for separably mounting the light shaping device on the fastening arrangement of the lighting device, wherein the outlet opening is provided in the form of a round outlet opening, which is at least sectionally enclosed by a frontal tensioning element that expands the flexible material of the sidewalls.

2. The light shaping device according to claim 1, wherein the tensioning elements feature rod elements extending from the inlet opening to the outlet opening in the longitudinal direction of the light shaping and light emitting region.

3. The light shaping device according to claim 1, wherein at least some of the tensioning elements consist of a fiber-reinforced material, having a carbon fiber-reinforced material.

4. The light shaping device according to claim 1, wherein the frontal tensioning element is made of metal.

5. The light shaping device according to claim 1, wherein the frontal tensioning element is made of a flat material.

6. The light shaping device according to claim 1, wherein a fastening arrangement for separably fastening a diffusion device is arranged in the region surrounding the outlet opening and/or on an inner side of the sidewalls.

7. The light shaping device according to claim 1, wherein one or more of the tensioning elements are arranged in assigned receptacle pockets in the sidewalls.

8. The light shaping device according to claim 1, comprising a collapsible design.

9. The light shaping device according to claim 1, wherein the fastening mechanism features a snap fasteners and/or hook-and-loop fastener sections.

10. The light shaping device according to claim 1, wherein the fastening mechanism features one or more receptacle pockets, into which the ends of the tensioning elements are inserted.

11. The light shaping device according to claim 1, wherein at least some of the tensioning elements are arranged in an intersecting fashion.

12. The light shaping device according to claim 1, wherein at least some of the tensioning elements are arranged in a non-intersecting fashion.

13. The light shaping device according to claim 1, wherein the outlet opening is at least partially covered with a light diffusion device.

14. The light shaping device according to claim 1, wherein the flexible material is formed by a layered material with a stack of layers, wherein the following layers are provided and bonded to one another: a textile layer, a metallized polyester film layer and a white polyester film layer.

15. An arrangement comprising a lighting device, particularly a spotlight, and a light shaping device according to claim 1, which is separably mounted on the lighting device.

Description

BRIEF DESCRIPTION

[0041] Some of the embodiments will be described in detail, with reference to the following figures, wherein like designations denote like members, wherein:

[0042] FIG. 1 shows a schematic representation of a light shaping device with an inlet opening and an outlet opening;

[0043] FIG. 2 shows a schematic perspective representation of a tensioning device (basic construction) for another light shaping device;

[0044] FIG. 3 shows a schematic representation of a tensioning device for an additional light shaping device;

[0045] FIG. 4 shows a perspective representation of a light shaping device, on which a diffusion device is arranged in the region of an outlet opening;

[0046] FIG. 5 shows a perspective representation of a receptacle pocket;

[0047] FIG. 6 shows a side view of the receptacle pocket; and

[0048] FIG. 7 shows a perspective representation of the receptacle pocket according to FIG. 5 in an expanded state.

DETAILED DESCRIPTION

[0049] FIG. 1 shows an exemplary light shaping device 1 with an inlet opening 2 and an outlet opening 3. A light shaping and light emitting region 4, the peripheral sidewall 5 of which consists of a flexible material, for example of a textile material, extends between the inlet opening 2 and the outlet opening 3. This material can also be referred to as reflector material. Tensioning elements 6 are provided in order to stabilize the sidewall. The tensioning elements 6 extend in the longitudinal direction of the light shaping and light emitting region 4 and are angled relative to the center axis of the light shaping and light emitting region 4.

[0050] The tensioning elements 6 originate from corner regions of the rectangular inlet opening 2.

[0051] The outlet opening 3 is realized in the form of a round outlet opening, which is at least sectionally enclosed by a frontal or outlet side tensioning element 7 that expands the flexible material of the sidewall 5. The frontal tensioning element 7 is made of a flat material, for example of spring steel.

[0052] The thusly created light shaping device has a round emission area, is very efficient, provides uniform illumination, has a very low weight and therefore can also be realized very large (with a diameter of 135 cm or more) and used for smaller spotlights, particularly LED spotlights, the clamping system of which typically is only designed with a low holding power. It furthermore has a small packing size and can be cost-effectively manufactured.

[0053] FIG. 2 shows a perspective representation of a basic construction 10 for a light shaping device in the form of a frame, in which the tensioning elements 6 extending between the inlet opening 2 and the outlet opening 3 intersect one another in pairs. The tensioning elements 6 extend between an outlet side tensioning element 11 and an inlet side tensioning element 12, wherein the outlet side tensioning element 11 is realized in the form of a ring in the embodiment shown. The inlet side tensioning element 12 has a rectangular shape.

[0054] FIG. 2 shows the basic construction 10 in the erected or expanded state. In order to form the light shaping device, the outer side of the basic construction is covered with reflector material in the region between the outlet side tensioning element 11 and the inlet side tensioning element 12. In this case, the reflector material is separably or inseparably fastened on the outlet side tensioning element 11 and the inlet side tensioning element 12, for example sewn around said tensioning elements. The ends of the tensioning elements can be separably inserted into (not-shown) assigned pockets on the inner side of the reflector material. The pockets may be realized in the form of receptacle pockets, for example as described below with reference to FIG. 5-7.

[0055] The outlet side tensioning element 11 and the inlet side tensioning element 12 of the additional light shaping device according to FIG. 3 are realized similar to the embodiment illustrated in FIG. 2. However, the tensioning elements 6 are arranged in a non-intersecting fashion in the embodiment according to FIG. 3.

[0056] FIG. 4 shows a perspective representation of the light shaping device 1. A light diffusion device 20 is arranged in the region of the outlet opening 3 and separably attached thereto by means of a schematically illustrated zipper 21. The zipper may be sewn to the reflector material.

[0057] FIG. 5-7 show representations of a receptacle pocket 30, which is arranged on the inner side of the light shaping devices in the light shaping region 4 in order to receive end sections of the tensioning elements 6, particularly end sections arranged proximal to the frontal or inlet side tensioning element 7, 12. The receptacle pocket 30 has a receptacle space 31, which is formed between an upper and a lower section 32, 33 of the receptacle pocket 30.

[0058] FIG. 5 shows the receptacle pocket 30 in a folded state, wherein a hook-and-loop connection may be produced in an intermediate region 34 between the sections 35, 36 of the receptacle pocket 30. In order to attach the receptacle pocket to the inner side of the light shaping device, its rear side 37 may be connected to the reflector material, for example, sewn or fastened thereon by means of hook-and-loop fastener tape. The receptacle pocket 30 may be sewn to the inner side of the peripheral sidewall 5 of the light shaping device 1.

[0059] Although the present invention has been disclosed in the form of preferred embodiments and variations thereon, it will be understood that numerous additional modifications and variations could be made thereto without departing from the scope of the invention.

[0060] For the sake of clarity, it is to be understood that the use of “a” or “an” throughout this application does not exclude a plurality, and “comprising” does not exclude other steps or elements. The mention of a “unit” or a “module” does not preclude the use of more than one unit or module.