Outdoor light

Abstract

Outdoor light (10), containing (a) a luminaire housing (12); (b) one or more lamps installed in the luminaire housing (12); and (c) means (16, 34, 36; 38, 40) for influencing the radiation characteristic (24); characterized in that (d) the downwardly projecting part (32) of the luminaire housing (12) is partially translucent and the light (24) generated by the illuminant emerges substantially on the underside of the luminaire housing (12); and (e) the devices (16, 34, 36; 38, 40) for influencing the radiation characteristics have structures with which an irregular light-shadow pattern can be generated.

Description

Technical area

[0001] The invention relates to an outdoor lamp comprising (a) a luminaire housing (b) one or more lamps installed in the luminaire housing; and (c) Devices for influencing the radiation characteristics.

[0002] Outdoor lighting, for example, is installed in urban spaces. They serve not only to illuminate traffic routes but also places where people spend longer periods of time. The design of such places is based on a variety of criteria. A high quality of life, for example, should be achieved with an urban feeling of balance, vitality, and well-being. Environmental sustainability goals, such as energy consumption, light pollution, and biodiversity, must be taken into account. State of the art

[0003] It is well known that places can be improved through traffic reduction, appropriate street furniture, water, trees, and planting. Examples of such improvements were demonstrated in the "Streets for Tomorrow" project, which is described on the website https: / / immermodern.de / strassen-fuer-morgen. Disclosure of the invention

[0004] The object of the invention is to create further possibilities for the enhancement of outdoor recreational areas.

[0005] According to the invention, the object is achieved with a luminaire of the type mentioned at the outset, which is characterized in that (d) the downwardly projecting part of the luminaire housing is partially translucent and the light produced by the lamp emerges substantially from the underside of the luminaire housing; and (e) the devices for influencing the radiation characteristics have structures with which an irregular light-shadow pattern can be generated.

[0006] The invention is based on the realization that not only real plants and street furniture, but also the design of lighting can contribute to well-being and improve the quality of life in urban areas. With the inventive solution, lighting is only provided near the pole, thus largely avoiding light pollution and glare. The area illuminated with an irregular light-shadow pattern follows an idea from the Japanese "komerebi," which creates a light-shadow pattern similar to that cast by forest leaves on the ground.

[0007] For example, patterns can be used in the form of plants or plant parts, flickering flames, architectural dots, chaotically arranged spot patterns that diminish in size toward the top, or similar. Growth-like proliferations can also be simulated.

[0008] Advantageously, the light paths overlap in such a way that there are few or no sharp transitions between illuminated and unlit areas. Smooth transitions are desirable. The irregularity of the light-shadow pattern thus affects not only the shape and size of the illuminated and unlit areas, but also the illuminance. In addition, the shape of the outdoor luminaire can also create a biophilic appearance.

[0009] Biophilic design follows the concept developed by Erich Fromm and Edward O. Wilson, which considers nature in space, the nature of space, and natural analogies. Biophilia is a design discipline that strives for harmonious coexistence and a desirable symbiosis between human architecture and the surrounding nature. The present invention extends this concept to outdoor spaces. Green, urban living spaces are thus also complemented by appropriate, nature-inspired lighting. Unlike conventional luminaires that merely fulfill technical requirements, the outdoor luminaires according to the invention meet future requirements for ecologically and socially reimagined urban spaces.

[0010] One embodiment of the invention provides that the luminaire housing has a cylindrical section and a connected, downwardly rounded lower section, which has translucent and opaque surfaces of different shapes and sizes, distributed irregularly at least over the lower section. The rounded lower section can be attached to the cylindrical section or molded onto it, thus forming an integral part of a common housing component. The rounded shape creates a biophilic shape that blends in with the appearance of natural spaces.

[0011] For example, the lower housing part can be provided with holes, slots, or other shaped openings through which the light emerges downwards. A particularly preferred embodiment of the invention provides that at least the lower section is made of glass, transparent plastic, or another translucent material, onto which opaque surfaces are painted or vapor-deposited using a stencil, glued with stenciled foil, or applied in some other way. In addition to the lower section, the cylindrical section can also be made of translucent material. The opaque material can have various thicknesses and be designed to be more or less translucent in certain areas. The type of lighting pattern created can be adapted to taste and circumstances.

[0012] Alternatively, a single- or multi-part, rigid material shell made of opaque or partially transparent metal, plastic, or other material can be provided in the area of ​​the lower section. For example, a two-part shell can be manufactured using 3D printing, which is arranged around a completely transparent lower section. The material shell can then have correspondingly irregular openings, slits, holes, and the like.

[0013] The outdoor light can be designed as a gas lamp or equipped with any desired electrical light source. However, in a preferred embodiment of the invention, the light sources comprise one or more LEDs. LEDs are cost-effective and energy-efficient. Preferably, the light sources emit amber light or light in a spectrum that is insect-friendly. Either the light source itself can emit in this spectrum, or suitable color filters can be provided. Spectra without a blue component and with an "amber" color temperature in the range between 1800 and 2200 Kelvin are particularly preferred.

[0014] The luminaire housing may also be provided with a rounded cap at the top. The cap may be at least partially opaque. The rounded shape completes a biophilic appearance and prevents light pollution.

[0015] The invention can be implemented, for example, by having a multi-part luminaire housing, with at least some of the parts of the luminaire housing being connected to each other by means of a threaded rod. The threaded rod can be connectable, for example, to a mast or arm.

[0016] In addition to the design of the lower section of the housing, it can further be provided that the devices for influencing the radiation characteristics comprise a central element arranged inside the housing, which is at least partially tubular and absorbs or reflects incident light. The central element can have a surface that influences the radiation characteristics similar to the lower section of the housing. In addition, it can be provided that fastening devices and electrical connections are routed through the central element to the lighting means.

[0017] A particularly preferred embodiment of the invention provides that the central element is widened in the upper region like a screen, the illuminants are arranged above the widened upper region, and the widened upper region has openings through which the light from the illuminants is transmitted downwards. For example, the openings can be triangular or leaf-shaped and arranged in a star shape. If the widened region is opaque, this ensures that light is emitted exclusively downwards.

[0018] The central element can have a faceted surface, at least in sections. This scatters the light downwards and creates smooth transitions between light and shadow. The central element does not necessarily have to be opaque, but can also be made of a faceted, translucent, or transparent material. With appropriate design, a glittering effect can be achieved, reminiscent of sunlight in a forest.

[0019] The luminaire housing can be attached to the top of a mast or an arm provided on a mast or building. Examples of designs with one or more outdoor luminaires include bollard lights, strip lights, and candelabra lights. In particular, a chassis can be arranged between the luminaire housing and the mast, housing a ballast, converter, or other electrical or electronic components. The chassis forms a transition component and can create a smooth transition between the luminaire housing and the mast.

[0020] The mast or arm can be provided with replicas of flames, plants or plant parts, or other irregularly reflective and / or absorbent elements. In particular, it can be provided that lamps are provided on the mast or arm to illuminate the replicas or elements. Furthermore, lamps, preferably LEDs, can be arranged in these replicas or elements. The replicas or elements can also have translucent veins. The elements provided on the mast or arm reinforce the overall biophilic appearance of the luminaire.

[0021] Embodiments of the invention are the subject of the dependent claims. One embodiment is explained in more detail below with reference to the accompanying drawings. Definitions

[0022] In this description and the appended claims, all terms have a meaning familiar to those skilled in the art, as set forth in specialist literature, standards, and relevant websites and publications, particularly lexical ones, such as www.Wikipedia.de, www.wissen.de, or those of competitors, research institutes, universities, and associations. In particular, the terms used do not have the opposite meaning to what the skilled person would understand from the above publications. Short description of the drawings Fig. 1 is a perspective view of an outdoor light with a housing that is partially transparent towards the bottom and a central element arranged therein for influencing the radiation characteristics. Fig. 2. is a perspective view of an outdoor lamp analogous Fig. 1, in which the radiation characteristics are additionally influenced by patterns printed on the transparent part of the housing. Fig. 3 is a perspective view of an outdoor lamp analog Fig. 1, in which the radiation characteristics are further influenced by patterned covers arranged around the upper and lower parts of the housing. Fig. 4 illustrates the radiation path in an outdoor luminaire according to Fig. 3. Fig. 5 is a side view of the lamp from Fig. 1. Fig. Figure 6 is a side view of a luminaire in which the beam pattern is influenced by patterns printed on the upper part of the transparent part of the housing. Fig. Figure 7 is a side view of a luminaire in which the beam pattern is influenced by patterns printed on the lower part of the transparent part of the housing. Fig. Figure 8 is a side view of a luminaire in which the beam pattern is influenced by patterns printed on the upper and lower parts of the transparent part of the housing. Fig. 9 is a perspective view of an outdoor lamp analog Fig. 3, in which the radiation pattern is only influenced by a patterned cover arranged around the upper part of the cabinet. Fig. 10 is a perspective view of the exterior light from Fig. 3. Fig. 11 is a side view of the exterior light from Fig. 1 with a single mast. Fig. 12 is a side view of the exterior light from Fig. 1 with a patterned mast. Fig. 13 is a side view of the exterior light from Fig. 10 with a patterned mast. Fig. 14 is a side view of the exterior light from Fig. 10 with a patterned mast. Fig. 15 shows two different sizes of the lamp from Fig. 11. Fig. 16 shows a mast with an outdoor light according to Fig. 1, which has two additional lights on two arms in candelabra design at different heights. Fig. 17 shows a mast with an outdoor light according to Fig. 1, which has two additional lights on two identical arms in candelabra design at the same height. Fig. 18 shows a mast analog Fig. 17, with two different arms. Fig. 19 shows a mast analog Fig. 17 with two identical arms in candelabra design in a different shape. Description of the embodiment

[0023] Fig. 1 and Fig. 5 show an outdoor light generally designated 10. The outdoor light has a housing 12 that is essentially cylindrical. The housing 12 is rounded at the bottom and is transparent. On the top, the housing 12 has an opaque cap 14. A central element 16 is located coaxially in the housing 12. The central element 16 serves to influence the radiation characteristics. This can be seen from Fig. 4 illustrated.

[0024] The central element 16 is made of translucent or transparent material and has a faceted surface 18 with a prism structure. It is understood that opaque material with a different faceting or a completely or partially non-faceted surface can also be used. The central element 16 is hollow inside. Inside the central element 16, in addition to supply lines for the power supply and / or for controlling the light sources, a threaded rod is also arranged. A cap 14 made of completely opaque material is placed on the upper end of the threaded rod. This also prevents light pollution. The cap 14 is secured with an externally operable locking screw that can be screwed onto the threaded rod.

[0025] In the present embodiment, five LEDs arranged in a ring serve as the light source. It goes without saying that more or fewer LEDs can also be used. The LEDs emit light in an insect-friendly, amber spectrum with a color temperature in the range of 1800-2200 Kelvin. It goes without saying that other light sources can also be used depending on the application.

[0026] The central element 16 is slightly widened towards the bottom. The upper end 22 of the central element 16 is fanned out in a shield-like manner and is provided with five essentially triangular openings 20. The tapered areas are rounded, resulting in organic shapes. The LEDs are located inside the cap 14 together with a ballast. It can be seen that light 24 can only escape downwards through the openings 20. This is exemplary for various embodiments in Fig. 4. At least a portion of the emitted light 24 strikes the faceted surface of the central element and is reflected downwards in various directions.

[0027] The transparent housing 12 is open at the lower end. The edge 26 is rounded inwards. The rounding is in Fig. 1, designated 32. The lower edge 26 of the housing 12 is mounted on a chassis 28 made of opaque material, such as metal, which forms the transition to a mast 30. Additional electronic components can be arranged in the hollow chassis 24. The curve 32 ensures that light 24 is radiated downwards near the mast. This prevents glare. The design of the luminaire 10 and, in addition, the design of the central element 16 result in spatially variable illumination with varying illuminance of the objects below and the ground near the mast.

[0028] Fig. 2 and Fig. 8 show the exterior light from Fig. 1, in which the radiation characteristics are additionally influenced by patterns 34 in the lower area and 36 in the upper area, which are printed on the transparent part of the housing 12. In a first embodiment, the pattern is applied using a printed film. In another embodiment, the pattern is vapor-deposited, painted, or sprayed directly onto the housing using a stencil.

[0029] It can be seen that patterns 34 and 36 are irregular, with opaque areas varying in both shape and size. Optionally, the areas can also be provided with varying degrees of light transmission. This creates a lighting effect near the mast that is static, but geometrically very irregular. Illuminated and unlit areas alternate, with the illuminance varying due to the beam guidance. An example of the beam guidance is shown in Fig. 4 illustrated.

[0030] Fig. 6 shows the embodiment from Fig. 2, whereby only the upper area is provided with an additional pattern 36. Fig. 7 shows the embodiment from Fig. 2, whereby only the lower area is provided with an additional pattern 34.

[0031] Fig. 3 and Fig. 10 show the exterior light from Fig. 1, in which the radiation characteristics are additionally influenced by patterned covers 38 and 40. Fig. Figure 3 shows a cover 38 in the lower area and, at the same time, a cover 40 in the upper area. The covers 38 and 40 are made of a rigid material, for example, by 3D printing, which has translucent and opaque areas. The covers 38, 40 can be plugged onto the housing 12 before installation on the mast or assembled in several parts after installation. Clip or plug fasteners or other connecting elements are then provided for assembling the parts. It is understood that the covers 38 can also be arranged only around the lower part or, as in Fig. 9, around the upper part. It may also be provided that foils or patterns created with stencils can be combined with covers.

[0032] In the present embodiment, the covers are arranged completely over the cap and / or the chassis. These are then concealed, creating a more harmonious overall appearance. An alternative embodiment provides for the covers to be ring-shaped and cover only a transparent area of ​​the housing.

[0033] Fig. Figure 4 schematically illustrates the beam path in the luminaires shown in the figures. Light from the LEDs is either emitted directly downwards and is transmitted, absorbed, or reflected according to pattern 38. Alternatively, the light 24 travels downwards at an angle to the vertical. It then first strikes the central element 16 with a faceted surface. This also spreads out a directed beam before being emitted downwards toward pattern 38.

[0034] The result is an irradiation result that features light and dark areas in irregular patterns and brightnesses, thus creating a "komerebi" effect. It is understood that the patterns 36 and 38 shown in the figures are only examples, and other patterns can also be used. For example, irregular, opaque dots, lines, or the like, or conversely, translucent holes, slits, or openings, whose density increases or decreases upwards or downwards and / or in the circumferential direction of the housing 12, can also be used.

[0035] Fig. 11 shows the outdoor light 10 as an example with a simple mast. Any other outdoor light from the remaining Fig. 2 to 10 can also be mounted on such a mast. Fig. Figure 12 shows an alternative pole 40 provided with a pattern 42. The pattern may extend entirely or partially along the length and circumferentially on the pole surface of the pole 40. As with the patterns 34, 36 on the outdoor luminaire 10, patterns of different shapes and sizes may be embossed or projected. This also randomizes light that strikes the pole directly or, for example, by scattering, creating an irregular illumination pattern.

[0036] Fig. 13 shows the exterior light 10 from Fig. 3 with a mast such as that in Fig. 12. It can be seen that pattern 42 is partially embossed. Fig. Figure 14 shows a mast with a protruding pattern 44. In addition to pure patterns 42, 44, replicas of leaves, blossoms, or branches, with or without leaves or blossoms, can also be molded onto or attached to the mast. This creates a particularly natural, biophilic appearance not only of the illuminated areas, but also of the outdoor light itself. For example, additional lighting devices can be arranged on the mast and / or the replicas of plants or plant parts attached to it, illuminating these parts. A particularly effective result is achieved when the replicas have transparent veins through which light can escape to the outside.

[0037] More cost-effective, simpler designs of masts 30 are available in the Fig. 15 to 19 illustrated. Fig. Figure 15 illustrates that the 30 masts can be of different sizes. For example, one mast can be 5 meters high, while another mast can be 8 meters high. Depending on the application, different heights can be combined, or a single height can be used. Fig. Figures 16 to 19 illustrate various designs of masts 48 with mast arms that can take on various heights and shapes. The presently shown embodiments depict candelabras. It is understood that more or fewer arms can be used depending on taste and application, and that other shapes and designs of such arms are possible.

[0038] The outdoor lights are designed to create the visual impression of natural vegetation.

[0039] The exemplary embodiments explained above serve to illustrate the invention claimed in the claims. Features which are disclosed together with other features can generally also be used alone or in combination with other features which are explicitly or implicitly disclosed in the text or in the drawings in the exemplary embodiments. Dimensions and sizes are given only as examples. Suitable ranges will become apparent to those skilled in the art from their specialist knowledge and therefore need not be explained in more detail here. The disclosure of a specific embodiment of a feature does not mean that the invention is to be limited to this specific embodiment. Rather, such a feature can be implemented by a multitude of other embodiments familiar to those skilled in the art.The invention can therefore be realized not only in the form of the embodiments explained, but by all embodiments covered by the scope of protection of the appended claims.

[0040] The terms "top," "bottom," "right," and "left" refer exclusively to the attached drawings. It is understood that claimed devices may also assume other orientations. The terms "containing" and "comprising" mean that additional, unmentioned components may be provided. The terms "essentially," "predominantly," and "predominantly" encompass all features that exhibit a property or content in the majority, i.e., more than all other mentioned components or properties of the feature—for example, more than 50% for two components. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited non-patent literature

[0000] www.Wikipedia.de

[0022] www.wissen.de or

[0022]

Claims

[1] Outdoor light (10), comprising (a) a luminaire housing (12); (b) one or more lamps installed in the luminaire housing (12); and (c) means (16, 34, 36; 38, 40) for influencing the radiation characteristic (24); characterized by , that (d) the downwardly projecting part (32) of the luminaire housing (12) is partially translucent and the light (24) generated by the illuminant emerges substantially on the underside of the luminaire housing (12); and (e) the devices (16, 34, 36; 38, 40) for influencing the radiation characteristics have structures with which an irregular light-shadow pattern can be generated. [2] Outdoor light (10) according to claim 1, characterized bythat the luminaire housing (12) has a cylindrical section and a downwardly rounded lower section connected thereto, which has translucent and opaque surfaces of different shapes and sizes, which are distributed irregularly at least over the lower section. [3] Outdoor light (10) according to claim 2, characterized by that at least the lower section is made of glass, transparent plastic or another translucent material, on which, in order to produce opaque surfaces (34, 36), opaque material is painted or vapor-deposited on a stencil, glued on with stenciled foil or applied in some other way. [4] Outdoor light (10) according to claim 2, characterized by that a one-part or multi-part, rigid material sheath (38, 40) made of opaque metal, plastic or other material is provided in the region of the lower section. [5] Outdoor light (10) according to one of the preceding claims, characterized by that the light sources comprise one or more LEDs. [6] Outdoor light (10) according to one of the preceding claims, characterized by that the lamps emit amber light or light in a spectrum that is insect-friendly. [7] Outdoor light (10) according to one of the preceding claims, characterized by that the lamp housing (12) is provided with a cap (14) rounded at the top. [8] Outdoor light (10) according to claim 7, characterized by that the cap (14) is opaque. [9] Outdoor light (10) according to one of the preceding claims, characterized by that the luminaire housing (12) is designed in several parts and at least some of the parts of the luminaire housing (12) are connected to one another by means of a threaded rod. [10] Outdoor light (10) according to claim 9, characterized bythat the threaded rod can be connected to a mast (30, 40) or arm (50). [11] Outdoor light (10) according to one of the preceding claims, characterized by that the devices for influencing the radiation characteristic have a central element (16) which is arranged in the interior of the housing and is at least partially tubular and which absorbs or reflects incident light. [12] Outdoor light (10) according to claim 11, characterized by that fastening devices and electrical connections are led through the central element (16) to the lighting means. [13] Outdoor light (10) according to claim 11 or 12, characterized by that the central element (16) is widened in the upper region (22) like an umbrella, the lighting means are arranged above the widened, upper region (22) and the widened, upper region has openings (20) through which the light of the lighting means is transmitted downwards. [14] Outdoor light (10) according to claim 13, characterized by that the openings (20) have a triangular or leaf shape and are arranged in a star shape. [15] Outdoor light (10) according to one of claims 11 to 14, characterized by that the central element (16) has a faceted surface (18) at least in sections. [16] Outdoor light (10) according to one of the preceding claims, characterized by that the luminaire housing (12) is attached to the upper end of a mast (30, 40) or an arm (50) provided on a mast or a building. [17] Outdoor light (10) according to claim 16, characterized by that a chassis (28) is arranged between the luminaire housing (12) and the mast, in which a ballast, converter or other electrical or electronic components are accommodated. [18] Outdoor light (10) according to claim 16 or 17, characterized bythat the mast (30, 40) or the arm (50) is provided with replicas (42, 44) of flames, plants or parts of plants or other irregularly reflecting and / or absorbing elements. [19] Outdoor light (10) according to claim 18, characterized by that lighting means are provided on the mast (30, 40) or on the arm (50) for illuminating the replicas or elements (42, 44). [20] Outdoor light (10) according to claim 19, characterized by that the replicas or elements (42, 44) have translucent veins.

Images