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
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S8/00—Lighting devices intended for fixed installation
  • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
  • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• • 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
  • F21V7/00—Reflectors for light sources
  • F21V7/0008—Reflectors for light sources providing for indirect lighting
  • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
• • 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
  • F21V7/00—Reflectors for light sources
  • F21V7/0025—Combination of two or more reflectors for a single light source
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
  • F21V17/105—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using magnets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
  • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
  • F21V17/14—Bayonet-type fastening
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
  • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
  • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
  • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
  • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
  • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
  • F21Y2103/37—U-shaped
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
  • F21Y2113/00—Combination of light sources

Definitions

• the invention relates to a recessed luminaire with a holder for fastening in an installation surface, in particular a ceiling, with a lamp holder and with a reflector.
• Such recessed lights are known from the prior art in a variety of forms.
• "dark light lamps” are known in which the illuminant and reflector are arranged in relation to one another in such a way that the illuminant can no longer be seen from a certain viewing angle and therefore cannot develop a glare.
• this avoidance of a glare effect also means that the ceiling area of a room illuminated in this way remains largely unlit and the relationship between the light source and the illuminated area, which humans perceive as natural, is lost, since it is not clear from which light source the light comes.
• this effect is alleviated by attaching a partially or completely matt glass pane in the region of the reflector opening in the direction of illumination or below it, in order to thereby generate diffuse light.
• this partially or completely reduces the proportion of directed, direct light, which in turn is disadvantageous.
• Recessed lights are also known from the prior art which avoid the above-mentioned effect. These recessed luminaires use scattering, for example white, reflectors instead of reflecting reflectors. These scattering reflectors cause that the light source or its illuminated reflector is visible from practically all viewing angles, although again a detrimental glare occurs.
• the object is achieved by the features of patent claim 1 and in particular by the fact that the holder and reflector are arranged relative to one another in such a way that the reflector extends in a main lighting direction beyond the installation surface in the case of installers fastened in the installation surface, the reflector in this area, which extends beyond the installation area, is coupled to a reflection element, which runs perpendicular or at an angle to the main lighting direction and is arranged outside the reflector and can be acted upon by light via the area lying between the installation area and reflection element.
• the reflector opening located in the main illumination direction is therefore not in the plane of the installation surface, as in conventional recessed luminaires according to the prior art, but rather below this level, which means that the reflector protrudes from the installation surface in the main illumination direction.
• the reflector forms in its area protruding from the installation surface an attachment option for the reflection element according to the invention, which extends outside the reflector, for example around it.
• This reflection element can now be exposed to light in any manner from above, over the area between the installation surface and the reflection element, so that this light component is reflected by the reflection element in the direction of the installation surface, for example a ceiling.
• the reflection element according to the invention results in interesting design options, for example through an individual choice of the shape or the color of the reflection element.
• the reflection element can be designed to be reflective or reflective on its side facing the installation surface. In this embodiment, it is advantageous that the entire light incident on the reflection element from above is reflected in the direction of the installation surface, so that a particularly efficient ceiling illumination is achieved. When viewed from below, the reflection element appears unilluminated in this case.
• the reflection member as a reflective only for a portion of the incident light and for another portion of the incident light transmissive 'diffusion plate form.
• the reflected light portion is used to illuminate the ceiling, whereas the light portion passing through the reflection element leads to diffuse, scattered room lighting which starts from the underside of the reflection element.
• the reflection element When the reflection element is viewed from below, it appears illuminated in the case mentioned.
• the reflection element has no dazzling effect, since the light component passing through the reflection element emerges from the reflection element only as scattered light.
• the reflection element with transparent areas or openings through which light from the space between the installation surface and the reflection element can pass through the reflection element unhindered.
• the above-mentioned transparent areas or openings allow creative effects to be achieved on the one hand and lighting to be even more efficient on the other.
• the reflection element according to the invention can be detachably and / or exchangeably connected to the reflector.
• An exchange of the reflex onselement is particularly interesting from a design point of view, since depending on the lighting mood to be achieved, reflection elements with different shapes, different optical behavior and / or different colors can be used without having to make any changes to the rest of the recessed luminaire.
• reflection elements outside the reflector, which, for example, can have different sizes and / or colors.
• These multiple reflection elements can, for example, extend parallel to one another and have different distances from the installation surface.
• the reflector in its area extending beyond the installation surface can be at least partially translucent or transparent or provided with openings so that light from the interior of the reflector can reach the region between the reflection element and installation surface, which then ultimately acts on the reflection element from above ,
• the reflection element can take on an additional masking function, since it can prevent light from reaching the viewer's eye directly from the outside of the translucent or transparent reflector.
• an additional light exit area in addition to the reflector, which at least partially surrounds the reflector and via which the reflection element can be exposed to a proportion of light that does not originate from the inside of the reflector.
• This additional light exit area can extend in a plane that at least essentially coincides with the plane of the installation surface or that runs perpendicularly or obliquely to the plane of the installation surface.
• the reflector has a first reflector opening located in the main lighting direction and a second reflector opening opposite to the main lighting direction, with an additional or background reflector being assigned to the second reflector opening.
• the additional or background reflector lying behind the second reflector opening opposite to the main direction of illumination can act both on the reflector itself and on the described additional light exit area.
• the illuminant emits, on the one hand, direct light via the reflector in the main lighting direction and, on the other hand, in a direction opposite to the main lighting direction to the additional or background reflector, which, depending on its design, partly directs the light incident on it in the direction of the additional light exit area and partly in the direction of the first reflector opening of the reflector, so that this additional or background reflector also Efficiency increase in direct light generation via the reflector contributes.
• a light passage area is formed between the additional or background reflector and the reflector, so that the additional or background reflector passes that part of the light which is intended for the additional light exit area past the outside of the reflector to the said one can direct additional light exit area.
• the additional light exit area can be applied via the additional or background reflector as well as directly via the illuminant.
• the additional or background reflector can be formed by at least one flat or suitably shaped reflector surface which is either mirrored or diffusely reflective.
• Curving or kinking of the additional or background reflector the ratio of the light components that are directed to the first reflector opening of the reflector and to the additional light exit area can be set in a targeted manner.
• the additional or background reflector is shaped in such a way that a high proportion of light reaches the first reflector opening and only a small proportion of light reaches the additional light exit area.
• the illuminant and the reflector are arranged in an in particular light-tight and / or dust-tight housing, the inner surface of which is at least partially designed as an additional or background reflector.
• the housing base in particular can be a flat or suitably curved or kinked Reflector surface are formed, which forms at least a region of the additional or background reflector.
• the side walls of such a housing can also be designed to be specular or diffusely reflective and thus act as further reflector regions.
• the housing base or the housing side walls are designed as additional or background reflectors, it is advantageously achieved that no additional components are required for this reflector. It is only necessary to equip the inside of the housing with the desired reflection behavior.
• the housing it is advantageous if it is made light-tight, since in this case inaccuracies in the processing, for example in the case of suspended ceilings, are not inadvertently illuminated from behind. Furthermore, the housing can be made dustproof in order to counteract, for example, pollution of lamps and reflectors caused by air conditioning systems.
• the reflector intended for the actual room lighting is preferably designed to be reflective on its inside in order to achieve a defined lighting characteristic and good efficiency.
• the reflector can be designed to be reflective or diffusely reflective, so that the light impinging on the additional light exit area can also be guided over the outside of the reflector.
• the outside of the reflector forms an area of the additional or background reflector.
• the housing of the recessed luminaire according to the invention can be in the area of the additional light exit area through a translucent or transparent pane and in the area of the main lighting direction.
• NEN first opening of the reflector must be at least largely dust-tight by a further, in particular transparent pane. In this way, the entire arrangement can be largely dust-tight if the housing is designed accordingly.
• the reflector can be detached from the housing, optionally together with the reflection element.
• the illuminant is particularly easily accessible, so that it can be easily replaced. This is particularly advantageous when elongated lamps are used, the longitudinal extension of which is perpendicular to the main direction of illumination.
• the reflector can be articulated on the housing, for example, or can be fastened by means of a detachable screw, magnet, clip, latching or bayonet connection.
• the reflector is mounted in the housing so as to be displaceable in the main lighting direction.
• a displaceability can, on the one hand, change the distance between the reflection element and the installation surface or ceiling, thereby making it possible to set the size of the area in which the ceiling appears brightened.
• the relative position of the reflector with respect to the illuminant can be changed by the above-mentioned displaceability, as a result of which the lighting characteristics of the recessed luminaire according to the invention can be varied in the desired manner.
• the recessed luminaire according to the invention can be operated with any lamps. It is preferred if an elongated lamp in the form of a compact fluorescent lamp is used, the longitudinal direction of extension either coincides with the main direction of illumination or is perpendicular to it. If the longitudinal extension is perpendicular to the main direction of illumination, particularly good ceiling illumination can be achieved, since in this case a comparatively relevant proportion of light can reach the reflection element, for example through the partially transparent reflector.
• FIG. 1 is a sectional view of a first embodiment of a recessed light according to the invention
• FIG. 2 is a sectional view of a second embodiment of a recessed light according to the invention.
• FIG. 3 shows a sectional illustration of a third embodiment of a recessed luminaire according to the invention
• FIG. 4 shows a side view of a fourth embodiment of a recessed luminaire according to the invention with a reflection element
• Fig. 5 is a sectional view of a fifth embodiment of a recessed light according to the invention
• Fig. 6 is a side view of a sixth embodiment of a recessed light according to the invention with two reflection elements.
• FIG. 1 shows a substantially cylindrical housing 2, which is fastened in a ceiling 1 and is open at the bottom, a lamp holder 3, into which a lamp 4 is inserted, being provided in the region of the housing bottom.
• the housing 2 is coupled on the inside with a translucent or transparent cylindrical element 5, which forms an additional light exit region.
• the cylindrical element 5 protrudes from the housing 2 in the main lighting direction A and has at its lower end facing away from the housing 2 a horizontally extending parallel to the ceiling 1
• Collar 6 which has a circular ring shape and forms the reflection element according to the invention.
• a transparent disk 7 is mounted running parallel to it, the diameter of which corresponds to the outer diameter of the annular collar 6.
• the interior of the housing 2 is closed in a dust-tight manner by the cylindrical element 5, the collar 6 and the disk 7.
• a mandrel or dome-shaped reflector 8 is provided, which has a first, larger reflector opening 9 on its side facing away from the lamp holder 3. Furthermore, the reflector 8 has a second, smaller reflector opening 10 on its side facing the lamp holder 3.
• the reflector extends from that area in the cylindrical element 5 and collar 6 adjoin one another, approximately in the middle of the housing 2, so that the light-emitting region of the illuminant 4 comes to lie in the upper region of the reflector interior. What is achieved by the arrangement mentioned is that the reflector 8 extends downward beyond the installation surface or the ceiling 1 in the main lighting direction A.
• FIG. 1 shows two beam profiles by way of example.
• the light component mentioned ultimately brings about direct lighting, directed in the main lighting direction A, of a room located below the ceiling 1. This direct lighting takes place according to the dark-light principle, since the illuminant 4 is no longer visible from a certain viewing angle of the recessed luminaire shown and therefore cannot develop a glare.
• a smaller proportion of light passes from the illuminant 4 to the bottom of the housing 2, which is designed as an additional or background reflector 11 and accordingly has specular or diffusely reflecting properties.
• the additional or background reflector 11 reflects the light striking it in the direction of the cylindrical element 5, which, as already mentioned, is translucent or transparent.
• the light component mentioned passes through the cylindrical element 5 until it strikes the collar 6, which is formed with a mirror on its upper side. From there, the aforementioned light component is reflected in the direction of the ceiling 1, which is generally designed to be diffusely reflective.
• the light diffusely reflected from the ceiling 1 is pleasantly visible without a glare.
• the described The plane beam path is exemplarily illustrated in FIG. 1 with the aid of a light beam.
• FIG. 2 shows a further embodiment of a recessed luminaire according to the invention, elements which correspond to one another in FIGS. 1 and 2 being designated with the same reference numerals. The same applies to FIGS. 3 and 4, which will be explained below.
• a housing 2 is fastened in a ceiling 1.
• the inside of the housing is designed to be reflective, so that it forms an additional or background reflector 11.
• a reflector 8 is provided with a first, larger reflector opening 9 and a second, smaller reflector opening 10, which extends with its area located in the main lighting direction A beyond the installation surface or the ceiling 1.
• the reflector 8 is connected to a cylindrical element 5, which also extends beyond the ceiling 1 in the main lighting direction A and, analogously to FIG. 1, is connected in its edge region located in the main lighting direction A to a collar 6 running perpendicular thereto.
• the cylindrical element 5 is connected in its edge region facing away from the collar 6 to a horizontally extending ring element 12, which essentially extends from the outside of the reflector 8 to the side wall of the housing within the plane of the ceiling 1 2 extends.
• Ring element 12, cylindrical element 5 and collar 6 can be formed in one piece and translucent or transparent.
• lamps 4 are arranged relative to the reflector 8 such that they are located approximately half in the interior of the reflector 8 and half in the space formed between the housing base and the reflector 8.
• the illuminants 4 could also be located entirely within the space formed between the housing base and the reflector 8 and thus completely above the reflector 8.
• the outside of the reflector 8 like its inside, is designed to be reflective, and the outside of the reflector 8 could, for example, also be designed to be diffusely reflective.
• the collar 6 is coupled to a disk 7, so that the interior of the housing 2 according to FIG. 2 is also closed in a dust-tight manner.
• direct light emerges from the first reflector opening 9 through the pane 7 into the space to be illuminated below the ceiling 1.
• This direct light either comes directly from the illuminants 4 or is previously reflected on the housing base designed as an additional or background reflector 11 and / or on the inner wall of the reflector 8.
• Corresponding radiation ratios are shown by way of example in FIG. 2.
• a small proportion of the light is emitted by the illuminants 4 at such an angle in the direction of the housing base that it then reaches the top of the collar 6 through the transparent ring element 12 through multiple reflection between the housing side wall and the outside of the reflector 8.
• the collar 6 is designed, for example, as a diffuser disk or is provided with a prismatic structure, so that it reflects part of the light impinging on it and is transparent to a further light component, the latter light component being converted into diffuse light due to the optical properties of the collar 6 becomes.
• This diffuse light passes through the pane 7 on the underside of the collar 6, so that the collar 6, when viewed from below, appears to be illuminated. However, since only diffuse light passes through the pane 7 in the region of the collar 6, this light component does not produce any glare.
• the portion of light reflected from the top of the collar 6 reaches the ceiling 1, analogously to FIG. 1, from where it is diffusely reflected.
• an illuminated ring area of the ceiling 1 and an illuminated collar 6 are always visible, without the collar 6 and the ceiling 1 each having one
• the larger reflector opening 9 ensures efficient room lighting in the main lighting direction A according to the dark light principle.
• FIG. 3 shows an embodiment of a recessed luminaire according to the invention, which corresponds in a number of features to the embodiment according to FIG. 2. Accordingly, the same reference numerals are used in FIG. 3 - insofar as there are correspondences here - as in FIG. 2.
• a single illuminant 4 is provided, which is positioned such that it is located completely between the bottom of the housing 2 and the second or upper reflector opening 10. The illuminant 4 thus does not extend into the interior of the reflector 8.
• a light passage element 13 is provided in the embodiment according to FIG. 3.
• the light passage element 13, which in particular can be formed in one piece with the collar 6, has essentially a circular ring shape and is concavely curved, it extending from the first or lower reflector opening 9 to the edge of the housing 2 resting on the ceiling element 1.
• the curved design of the light passage element 13 according to FIG. 3 enables the collar 6 to be exposed to light coming from the illuminant 4 even more efficiently than in FIG. 2, so that the brightening of the ceiling is further improved.
• FIG. 4 shows a side view of a further embodiment of a recessed luminaire according to the invention, which is fastened in a ceiling 1.
• This recessed luminaire also has a cylindrical, pot-shaped housing 2 in which a reflector 8 is held.
• the reflector 8 extends in the main lighting direction A beyond the ceiling 1 and, in contrast to FIGS. 1 and 2, is mounted displaceably in the housing 2 in the main lighting direction.
• the reflector 8 can be guided or supported in the housing 2 such that it can be locked in two or more different vertical positions.
• a luminous means 4 designed as a compact fluorescent lamp, the longitudinal extent of which illuminates with the main illuminant. direction A coincides.
• the illuminant 4 extends from the interior of the housing 2 to the end region of the reflector 8 in the main illumination direction A. In this region, the illuminant is surrounded by an essentially ring-shaped, central suppression additional reflector 14, which prevents the illuminant 4 from its end region located in the main lighting direction A develops a disruptive glare.
• annular reflection element 15 On the lower end region of the reflector 8, which forms a horizontal support surface, there is loosely an annular reflection element 15, which takes over the function of the collar 6 according to FIGS. 1 and 2.
• the reflector 8 according to FIG. 4 is at least partially translucent, so that a preferably small proportion of light passes through it and can strike the top of the reflection element 15. This light component is then reflected from the top of the reflection element 15 in the direction of the room ceiling 1, which in turn results in the ceiling illumination according to the invention.
• a corresponding, exemplary beam path is illustrated in FIG. 4.
• a further portion of the light reaches the ceiling 1 directly through the reflector 8, which is also shown by way of example in FIG. 4 using a further beam path.
• the reflector 8 according to FIG. 4 could also be made completely transparent and could only be provided with a prismatic structure on its inside, which ensures that sufficient direct light leaves the reflector 8 through the reflector opening located in the main illumination direction A.
• This transparent embodiment is based on The increased light permeability of the reflector 8 means that a comparatively large proportion of light is available for brightening the ceiling.
• the brightened ring area of the ceiling 1 can be enlarged.
• a reduction in the brightened ring area of the ceiling 1 can be achieved by adjusting or displacing the reflector 8 upwards.
• FIG. 5 shows an embodiment of a recessed luminaire according to the invention, in which the reflector 8 is held vertically displaceably in the housing 2, analogously to FIG. 4.
• Corresponding components of the recessed luminaire shown in FIG. 5 are identified by the same reference numerals that were also used in FIG. 4.
• the lamp 4 is fixedly connected to the bottom of the housing 2 via its socket and is therefore not held vertically displaceably in the housing 2 together with the reflector 8.
• the reflector 8 on the other hand, is held in the housing 2 by means of a slide bearing 17, the slide bearing 17 permitting a vertical movement of the reflector 8 in the main lighting direction A and counter to the main lighting direction A. Due to the above-mentioned displaceability, the reflector 8 can either be moved further into or out of the housing 2, as a result of which, due to the statically arranged illuminant 4, the lighting characteristics of the recessed luminaire shown change with regard to the direct light generated and, at the same time, the size of the reflection element 15 lightened ceiling area can be influenced.
• FIG. 6 shows an embodiment corresponding to FIG.
• a stepped reflector 8 is used according to FIG. 6.
• This stepped shape of the reflector 8 has the effect that on its outer side two ring-shaped contact surfaces 16 are formed, on each of which reflection elements 15 can be placed.
• These reflection elements 15, like the reflection element 15 according to FIG. 4, have a central, circular recess which corresponds to the outer diameter of the reflector 8 in the relevant region.
• the outer diameter of the upper circular reflection element 15 is dimensioned smaller than the outer diameter of the lower reflection element 15.
• three or more steps could also be provided on the reflector for supporting a corresponding number of reflection elements.
• a third reflection element could be arranged in the lower end region of the reflector 8.
• the three reflection elements together can take on an additional masking function, since under corresponding viewing angles they can completely prevent light from the illuminant itself or directly from the outside of the translucent or transparent reflector from entering the viewer's eye.
• both reflection elements 15 contribute to brightening the ceiling in accordance with the principle described in connection with FIG. 4, since both reflection elements 15 are exposed to light coming from the illuminant 4 via the partially transparent reflector 8. LIST OF REFERENCE NUMBERS

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)
• Securing Globes, Refractors, Reflectors Or The Like (AREA)
• Separation Of Particles Using Liquids (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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• 2003
  • 2003-12-23 DE DE10360945A patent/DE10360945A1/de not_active Ceased
• 2004
  • 2004-11-26 US US10/584,512 patent/US7753550B2/en not_active Expired - Fee Related
  • 2004-11-26 AU AU2004312574A patent/AU2004312574B2/en not_active Ceased
  • 2004-11-26 EP EP04820948A patent/EP1700063B1/fr not_active Not-in-force
  • 2004-11-26 WO PCT/EP2004/013461 patent/WO2005066538A1/fr active IP Right Grant
  • 2004-11-26 US US10/539,932 patent/US7780316B2/en not_active Expired - Fee Related
  • 2004-11-26 DE DE502004007925T patent/DE502004007925D1/de active Active
  • 2004-11-26 AT AT04820948T patent/ATE405791T1/de active
  • 2004-11-26 CN CN2004800382532A patent/CN1898496B/zh not_active Expired - Fee Related

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