DE10213536B4 - Secondary lighting system and luminaire with such a Sekundärbeleuchtungssystem - Google Patents

Abstract

A secondary illumination system (10) comprising:
A light source (20),
A main reflector (40),
- A substantially with respect to the main reflector (40) arranged secondary reflector (60) and
- An additional reflector (80, 80 ') which is curved and / or kinked so that its edge regions are at least partially withdrawn relative to a central region with respect to the secondary reflector or its Hauptabstrahlrichtung, so that a radiation pattern is generated with an enlarged opening angle,
characterized in that the auxiliary reflector (80, 80 ') is arranged so that a part of the light reflected from the secondary reflector (60) is incident on said auxiliary reflector (80, 80'), and that towards the secondary reflector (60) aligned sides of the additional reflector (80, 80 ') are formed reflective.

Description

The Invention relates to a secondary lighting system, especially a wall or a ceiling light, but also floor lamps, Table lamps and so-called bollards, both inside and outside closed rooms, especially standing on the ground, are arranged. The invention further relates to a luminaire with such a secondary illumination system.

Such Secondary lighting systems and lights can in diverse Shapes, for example, in offices, but also in corridor areas and in outdoor areas be used, the choice of positioning and the size of the light exit opening the desired Conditions and requirements is adjusted.

Wall- and ceiling lights are used especially when the spatial Conditions for a use of an optical arrangement allow for example in existing cavities, on the other hand, the lights preferably inconspicuous should be designed, as in these cases usually only a light exit opening is visible. However, wall or ceiling lights can also be used on one essentially flat surface be attached to the wall or ceiling, which is usually a Enclosure include. Bollards, on the other hand, are usually also clearly visible Design elements used or used when no installation options available. Bollard lights include a housing having a light exit opening and in that the secondary lighting system can be installed or used.

at such luminaires, which radiate only through a predetermined light exit opening, it is often problematic due to the often predetermined size of the light exit opening, one possible wide-angle and even illumination of the illuminated Area, in particular the utility plane to achieve. From the state of Technique luminaires are known in which a light source is relative arranged close to the light exit opening is, so that one preferably wide-beam illumination, i. a large beam angle, is made possible wherein the beam angle depends on the distance of the light source from the light exit opening is.

FR 830 477 A discloses a lighting system having a main reflector and a secondary reflector system consisting of a first and a second secondary reflector. In this case, the first secondary reflector has a directed to the main reflector tip, so that its edge regions are withdrawn relative to the second secondary reflector. The first secondary reflector is arranged so that no light reflected from the second secondary reflector is incident on the first secondary reflector.

EP 0 638 764 A1 relates to a predominantly direct-radiating interior light having a main reflector and an auxiliary reflector, wherein light is coupled through an opening in the main reflector in the region between the auxiliary reflector and the main reflector and is directed by reflection on the auxiliary reflector and / or on the outside of the main reflector to a secondary light exit opening ,

DE 15 97 992 A discloses a luminaire with a main reflector, in which a V-shaped auxiliary reflector is arranged.

It It is therefore an object of the present invention to provide a secondary lighting system and a lamp available to provide, in comparison to the known Sekundärbeleuchtungssytemen and prior art lights improved and more uniform illumination ensures good broad radiation at the same time.

These Task is by a secondary lighting system according to claim 1 and a lamp according to claim 16 solved. The claims 2 15 relate to advantageous embodiments of the secondary illumination system according to the invention, the requirements 17 to 22 relate to advantageous embodiments of the lamp according to the invention.

According to the invention, the secondary illumination system comprises a light source, a main reflector, a secondary reflector positioned substantially opposite the main reflector, and an auxiliary reflector which is curved and / or bent such that its edge regions are recessed from a central region at least partially with respect to the secondary reflector or its main emission direction. so that in particular by reflection on this additional reflector, a radiation characteristic is generated with an enlarged opening angle. A curved and / or kinked additional reflector in the sense of this invention means a reflector which is at least not completely flat or planar. A curvature in the sense of the invention can extend over the entire surface of the additional reflector or only over partial regions which each reflect a significant part of the incident on the additional reflector light, it can be constant or vary, including additional reflectors with one or more kinks or fold lines , which can run straight or along a curved line are ge curved and / or kinked additional reflectors in the context of this invention.

One Additional reflector is therefore according to the invention in particular so shaped and arranged that the additional reflector a Area, in particular one or more lines, the, or those with regard to the secondary reflector has a smaller distance to the secondary reflector, wherein At least adjacent to this area partial surfaces of the reflector relative to the secondary reflector withdrawn are, i. have a greater distance. Such a line having a smaller distance can be, for example the crease line of a V-shaped Be additional reflector, wherein the opening of the V of the secondary reflector is substantially remote.

It It should be noted at this point that the Sekundärbeleuchtungssystem invention or a luminaire according to the invention Components of already existing or conventionally known secondary illumination systems or use luminaires and supplement can. It is also possible that the individual components are essentially in the form of a compact overall system, but it is also possible that the individual components spatially are separated from each other.

Of the Additional reflector is on its side facing the secondary reflector formed at least partially reflective or reflective. It but it is also possible that he also on his the secondary reflector substantially opposite side at least partially specular or reflective is formed. Especially at the of the secondary reflector however, it may also be partially non-reflective, be formed in particular matte black.

One such secondary illumination system provides due to the advantageous combination of all elements on the one hand a very even lighting certainly, on the other hand, a very pronounced broad radiation. The provision a main reflector and a secondary reflector provides primarily for the uniformity especially that of the secondary reflector through the light exit opening reflected light, which is particularly pleasant for the viewer Ensures illumination and largely avoids glare. Main reflector and secondary reflector are designed and arranged so that a large part of the main reflector emitted radiation is directed to the secondary reflector.

In addition to the main reflector and the secondary reflector sees the secondary illumination system according to the invention the additional reflector in front, with the light coming from the main reflector and the secondary reflector and optionally directly emitted or reflected by the light source is, in part directly through the light exit opening to be illuminated area or is radiated into the room to be illuminated and partially is directed to the additional reflector, the light incident on him due at least in part to the secondary reflector aligned interior area or at least partially with regard to taken back to a central area Edge areas in the width of the room or to be illuminated area or sideways and so on the wished large opening angle the radiation ensures. Especially with an elongated auxiliary reflector, for example, substantially along a longitudinal axis a curvature or kink, light becomes substantially in directions perpendicular and / or in directions with components perpendicular to this longitudinal axis, So laterally, reflected, resulting in the desired broad effect. Of the Term "width" is therefore in the sense of Invention not in principle equate to a horizontal direction.

The Secondary lighting system Therefore, by the combination of a light source and a main reflector, often Also referred to as a so-called light projector, with a secondary reflector and an additional reflector, also referred to as a tertiary reflector can, a particularly advantageous and flexible illumination available, where the flexibility especially supported by it that will only by the replacement of a single element, advantageously in particular of the additional reflector, an adaptation of the emission characteristic the secondary lighting system according to the invention or the luminaire according to the invention possible is, especially a change the broad radiation by adaptation or exchange in particular only allows the additional reflector becomes.

Also without the exchange possibility of individual elements may be used in the manufacture of the secondary illumination system or the luminaire, ensure that secondary lighting systems and luminaires be achieved with different radiation characteristics by simply different individual components, in particular different ones Additional reflectors, available for selection, while for the others Components of the secondary illumination system and the lamp, in particular for the main reflector and the secondary reflector, unitary elements what the total manufacturing cost of the secondary lighting system and the light significantly lowers, especially there preferably only one of the components must be provided in different variants.

Of the Main reflector can have very different shapes and geometries in particular, can also already known from other lights and standard main reflectors be used. Preferably, such a main reflector is rotationally symmetric, in particular designed as a paraboloid, wherein it preferably has a level border having. The main reflector can be a conic section and it may also be symmetrical or asymmetrical be.

Especially the use of main reflectors already used in other luminaires reduces the cost of the secondary illumination system according to the invention and the lamp, without due to the combination with a secondary reflector and an additional reflector on the variability on the one hand and the extra On the other hand, to dispense with advantageous radiation characteristic.

Of the secondary reflector is preferably roof-shaped formed, in particular it is preferably curved, with a Inside at least partially towards the main reflector is aligned. Under "inside" is here at a curved around a radius secondary reflector to understand the radially inner side or the concave side. For a secondary reflector, which is, for example, substantially planar and one Has kink, is under the "inside" the side of the secondary reflector to understand on which the interior angle at a kink or crease line smaller than 180 °.

at a particularly advantageous secondary reflector is around a substantially planar reflector, but in only curved in one direction is to be that way Cross-section is formed substantially channel-shaped. A curvature can essentially over the extent of the reflector be constant or change significantly. Instead of a trough-shaped curvature it is also possible that the Secondary reflector comprises one or more kinks, which over the entire extent of the reflector or only over partial areas of the reflector can extend. Crease lines can parallel to each other or even certain angles to each other exhibit. Also, one must Crease line not necessarily straight, but can also be curved ge. It should be at this It should be noted that this note concerning the curvature or the provided buckling points or bending lines of the reflector in an analogous way also for the curved one and / or kinked additional reflector apply.

Prefers is such a cross-sectionally channel-shaped secondary reflector designed so that a open side, or inside, the gutter at least partially is aligned in the direction of the light exit opening. there can be provided that the secondary reflector the incident of the main reflector light, based on the main emission direction of the main reflector, diverts by more than 90 °.

One another, particularly advantageous secondary reflector can in its cross section essentially birdwing be educated. Advantageous secondary reflectors can both assume a symmetrical shape, but also formed asymmetrically be independent of whether they are essentially trough-shaped, bird-swinging or one take another form.

The Provision of a secondary reflector provides for one particularly uniform appearance, in particular can the radiation characteristic by relatively simple and inexpensive changes the shape or the geometry of the secondary reflector and the arrangement of the secondary reflector be varied within wide ranges, without the main reflector or a consisting of main reflector and light source projector to vary so that as Main reflector and / or lights in a cost effective manner standard elements can be used.

Of the secondary reflector may be formed integrally, but it is also possible that the secondary reflector consists of several parts, which are either connected or independently each other e.g. in a housing a lamp are arranged. In particular, it is also possible that the secondary reflector includes a plurality of similar local reflector elements, the form as it were partial reflectors. Let such partial reflectors with a relatively low production cost in lighting technology impeccable quality produce.

Prefers are such reflector elements or partial reflectors in a grid arranged. The partial reflectors can be identical, but they can be identical also differ from each other, for example, by the curvature of individual partial reflectors, their arrangement or orientation and also their other geometric conditions.

The additional reflector is arranged in the beam path of the secondary reflector, so that a part of the light emitted by the secondary reflector hits the additional reflector. It is possible that the additional reflector is further arranged so that it is not arranged substantially in the beam path of the main reflector and the light source, a particularly advantageous embodiment provides, however, that the additional reflector is also partially in Is the beam path of the main reflector and the light source or the light emitter, but advantageously a greater proportion of the light incident on the additional reflector emanating from the secondary reflector.

Of the Additional reflector is preferably at least partially between the main reflector and secondary reflector arranged and in a preferred embodiment has a substantially elongated Geometry on. A longitudinal axis such an additional reflector is advantageously oriented so that she has at least one component which is a distance between the Main reflector and the secondary reflector bypasses. A such component, in particular parallel to a main emission direction a main reflector or a rotation axis of a rotationally symmetric Main reflector is, in the following also as "vertical Component ", Main reflector and secondary reflector in this case "above" - or "with each other" are arranged. It should be noted at this point, however, that the terms "vertical" or "one above the other" and "each other" not necessarily the actual Play the room orientation. Especially with the so-called bollard lights corresponds to the above explained "vertical Direction "though often too a vertical orientation of a vertically arranged in space Pollers, even with wall lights can match the actual vertical direction, this is in ceiling lights but usually not the case. By the term "broad radiation" is in this case in accordance with the above definition a radiation in one direction in essentially perpendicular to the above defined "vertical direction" (possibly also z-direction to be understood), so that at Bollards or wall lights usually the broad radiation the light actually the illumination of the room to be illuminated or to be illuminated area in width (possibly also y-direction called), in contrast to an illumination in the depth of the room (possibly also called x-direction), concerns. A main direction of radiation is preferably oriented so that they are opposite the horizontal (x-y direction) is inclined slightly downwards, so that a desired floor area is illuminated.

at Ceiling lights in which a light exit opening often in substantially horizontal Is under the improved "broad radiation" an enlargement of the Beam angle in the direction of a horizontal plane or in different To understand C-levels. The term "C-plane" is defined in DIN 5032-1, on which is hereby referred.

Of the increased beam angle can depending on the design of the additional reflector in different horizontal directions be enlarged, so e.g. in an x-direction of the space and / or in a y-direction of the room. In a ceiling light, however, it is also possible that the light exit opening also essentially vertical, that is perpendicular to a ceiling orientation is aligned, in which case essentially the same effects as be achieved with wall lights.

In In this sense, the good broad radiation or the wide opening angle the radiation (radiation angle) of the secondary illumination system according to the invention and the lamp essentially ensured by the additional reflector or supports, while a uniform appearance is supported in a depth of the room, in particular by light rays, which radiated from the secondary reflector directly through the light exit opening who the, without meeting the additional reflector, which of course only a superposition of both Beam components to the desired, advantageous emission characteristics leads.

at an embodiment the additional reflector is preferably perpendicular in a cross section to a longitudinal axis essentially V-shaped, channel-like or birdwing trained, so that the desired broad beam radiation characteristic of the lamp in particular through reflections on the outside the additional reflector both by direct irradiation from the light source, as well as or by indirect radiation from the main reflector or the secondary reflector allows becomes. Reflections on the additional reflector are particularly preferred by irradiation from the secondary reflector instead, in individual cases or However, in small proportions, light from the main reflector can also be used and / or the light source thrown directly onto the auxiliary reflector become. The auxiliary reflector may in a preferred embodiment kinked and / or curved in particular, it may, for example, also be dovetail-shaped be. The cross section of an additional reflector can over its longitudinal extension be constant or vary, furthermore, the cross section of the Additional reflector be formed symmetrically or asymmetrically.

The additional reflector extends in a preferred embodiment substantially in a vertical direction from a terminal edge of the main reflector to a terminal edge of the secondary reflector, wherein it extends in a particularly preferred embodiment, at least partially in an inner region of the secondary reflector and / or the main reflector. The "inside area" of a reflector is to be understood as the area that is defined by the reflector area on the one hand and by an imaginary connection of the terminating edges of the reflector on the other hand. The additional reflector can also be shortened on one or both sides, so that a distance between the additional reflector and the height of the terminating edge of the main reflector and / or the secondary reflector remains.

Prefers is the additional reflector in a region of the light exit opening of a Cavity or a housing arranged the lamp, as a reflection of the reflector on the Zusatzre In particular, ensure that the light is good for incoming light can, if this reflection takes place in the vicinity of the light exit opening.

Prefers the additional reflector does not protrude out of the light exit opening, However, it is also possible in another embodiment that the additional reflector through the light exit opening at least partially to the outside protrudes or arranged substantially completely outside the light exit opening is.

at one from the light exit opening Outstanding auxiliary reflector can even be a broad beam over one Radiation angle allows be over 180 ° out even if it is at the light exit opening in the essentially is a flat light exit opening.

The surfaces The reflectors and the additional reflector can be reflective or diffuse reflective and smooth, especially highly polished, as well structured or frosted, wherein as structuring e.g. a so-called hammer blow structuring or provided a vault structure can be.

at the additional reflector are in particular the surfaces on an outer side of the curved and / or kinked reflector, so in the direction of the secondary mirror aligned sides, reflective formed. The inside can thereby at least partially not reflective and trained especially matt black. In principle, it is also possible, all surfaces of the additional reflector to form reflective.

at the secondary lighting system It can be a system, for example, in one already existing cavity used in a wall or a ceiling or can be installed. However, it is in one embodiment the luminaire according to the invention also possible, that this one additional casing comprises either used at least partially in the above-mentioned cavity can be, or as some of the above described Bollard lights is the case, a cavity or interior in which the secondary lighting system located, and the light exit opening first forms or defines. A housing can of course be placed on a wall or a ceiling outside, without the existence already existing cavity would be required. It should be at this point be noted that the cavity or a housing preferably can accommodate all elements of the secondary illumination system, it can but also individual elements of the Sekundärrefleketorsystems outside this cavity or the housing be arranged.

at a preferred embodiment If only one light exit opening is provided, it is however Of course also possible, that several Light exits are provided. Shape and size of the light exit openings can to the desired Conditions or directions of radiation are adapted.

According to one particularly preferred embodiment the at least one light exit opening is substantially planar formed and preferably has a rectangular, round or one ellipsoidal shape. It can but of course, too be designed differently configured light exit openings, for example triangular or hexagonal light exit openings or light exit openings, the at a kink surface for example, a housing are provided so that they are not formed planar.

The maximum dimension of a light exit opening is preferably not more than 350 mm, with one maximum dimension being the largest straight one Pad spacing is to be understood. For a rectangular light exit opening this would be e.g. a diagonal, with an ellipsoidal light exit opening of the largest diameter.

The Light opening may in a particularly preferred embodiment with a translucent cover, for example, a closure glass or a translucent Plastic cover, be provided. The cover can be clear in a particularly preferred embodiment, it may be frosted or opalized. The cover can be made of glass, a glass ceramic or a plastic, and they can simultaneously the function of sealing the luminaire housing and / or the function the restriction perceive the UV emission.

These and further features and advantages of the luminaire according to the invention will be described with reference to the following schematic drawings, the embodiments a luminaire according to the invention represent even more clearly. Show it:

1 a perspective view of some components of a first embodiment of an er inventive optical arrangement;

2 a cross-sectional view of some components of a second embodiment of an optical arrangement according to the invention,

3 a perspective view of some components of an embodiment of a lamp according to the invention;

4 a cross-sectional view of some components of another embodiment of an optical arrangement according to the invention; and

5 Cross-sectional views of some embodiments of additional reflectors that can be used in an optical arrangement or a luminaire according to the invention.

1 shows schematically and simplifies the most important components of a first embodiment of a Sekundärbeleuchtungssystems invention 10 with a light source 20 , a main reflector 40 , a secondary reflector 60 and an additional reflector 80 , For the sake of clarity, has been dispensed with an illustration of fasteners, the 1 therefore represents in schematic form only the geometric conditions and the relative arrangement of the individual elements to each other.

In the 1 embodiment shown comprises a standard halogen lamp as a light source 20 , in the 1 is shown substantially as a point light source. Of course, any light sources can be used, for example, incandescent lamps, gas discharge lamps, fluorescent lamps, high-pressure lamps, LED arrangements, etc. The light source 20 is located in a parabolic and upwardly open main reflector 40 so that the system is light source 20 and main reflector 40 can also be referred to as a light projector or headlights.

Above the main reflector 40 is a substantially channel-shaped secondary reflector 60 arranged, wherein the inner curvature of the secondary reflector 60 or its inside essentially an interior area 46 of the main reflector 40 is facing, so that - in this embodiment - the vast majority of that of the main reflector 40 and the light source 20 emitted light on the secondary reflector 60 falls.

The channel-shaped secondary reflector 60 indicates at the in 1 embodiment shown two elongated end edges 62 which is substantially perpendicular to a vertically oriented axis of rotation 42 of the main reflector 40 run. At the in 3 In the embodiment shown in which a very similar construction of the reflectors and the additional reflector is used, the terminating edges run 62 of the secondary reflector 60 essentially also perpendicular to that of a light exit opening 102 a housing 100 formed level. However, this is not necessarily required (see eg embodiment according to 4 ).

Like the same 1 can be clearly seen, the radius of the channel-shaped secondary reflector increases 60 in the longitudinal extent of the secondary reflector 60 , Essentially in the horizontal direction of the end edges 62 at the in 1 shown perspective view in the left and front direction. The secondary reflector can be adapted to different lighting tasks and therefore have different shape designs and dimensions.

Between the main reflector 40 and the secondary reflector 60 is an elongated additional reflector 80 arranged, which is V-shaped in this embodiment. The additional reflector 80 extends in a vertical direction from a substantially circular terminating edge 44 of the main reflector 40 to a height where the end edges 62 of the secondary reflector 60 lie.

The secondary reflector 60 is therefore located substantially in the emission area of the main reflector 40 , so that at least a very high proportion, usually the majority of the main reflector or the light source 20 emitted light on the secondary reflector 60 hits while the auxiliary reflector 80 (also called tertiary reflector) in the emission area of the secondary reflector 60 and predominantly reflects light incident on it from the secondary reflector. At the in 1 embodiment shown is also the additional reflector 80 at least partially in the emission area of the main reflector 40 However, in another embodiment, it is also possible that the additional reflector is completely outside the emission range of the main reflector.

A longitudinal axis of the additional reflector, with an edge 82 the V-shaped additional reflector 80 is equal, runs in a substantially vertical direction, but at the in 1 shown embodiment with respect to the vertical axis of rotation 42 of the main reflector 40 is slightly tilted, wherein the tilt in this embodiment is about 7 °, with the vertically overhead region of the additional reflector in the direction of a light exit opening ( 102 ; please refer 3 ) too. Tilts between 0 ° and 25 ° are preferably provided, but it is also possible that the edge 82 of the additional reflector 80 or another Longitudinal axis, for example in trough-shaped Zusatzreflekto Ren, exactly vertical or substantially parallel to a rotation axis 42 of the main reflector 40 or a longitudinal axis of a main reflector. There are also tilts to a negative angle possible, in which case preferably negative tilt angle between 0 ° and -25 ° are provided.

The edge 82 corresponds to a center region of the additional reflector 80 while his thighs 86 . 88 Represent border areas, which are withdrawn with respect to the secondary reflector or its Hauptabstrahlrichtung.

In 1 is also schematically and exemplified the course of three light beams A, B, C shown by the light source 20 be radiated in different directions. A first light beam A extends from the light source 20 essentially in the horizontal direction and meets a more inward point of the main reflector 40 is then reflected substantially in a vertical upward direction and impinges on an inner side of the secondary reflector 60 from which he in turn on an outside of the additional reflector 80 is reflected and is radiated from there in a width direction through a light exit opening (not shown) in the room.

A very similar course takes the exemplified light beam B, which is also substantially in a horizontal direction from the light source 20 is radiated from the main reflector 40 is reflected substantially vertically upwards, and from the secondary reflector 60 on an outside of the additional reflector 80 is reflected, from which the light beam B is radiated substantially in the width of a space to be illuminated, wherein the light beam B is emitted in a nearly opposite direction compared to the light beam A described above. Especially the course of these two light beams A and B indicates how a good width effect can be achieved with a lamp according to the invention.

With the light beam C, a light beam is shown, the only of the main reflector 40 and from the secondary reflector 60 reflected and from the secondary reflector 60 is radiated directly into the room to be illuminated by a light exit opening (not shown). Such a light beam C provides in particular for a also in the "depth of space" going radiation characteristic.

2 shows a second embodiment of a secondary illumination system in a cross-sectional view, which substantially the in 1 shown embodiment, so that to the detailed description 1 is referenced. Identical or similar components were provided with identical reference numerals.

Also in 2 is clearly the rotationally symmetrical and paraboloidally designed main reflector 40 recognizable, in which a light source 20 , here a conventional light bulb, is arranged. Above the main reflector 40 is the secondary reflector 60 , wherein it is clearly evident that, in 2 towards the right, a radius of curvature r of the channel-shaped secondary reflector 60 increases evenly. The representation of the radii is only schematic. In fact, the center from which the radius is measured will usually be outside the secondary reflector, ie, the height of the secondary reflector will be smaller than the associated radius. As well as in 2 is apparent, is the course of the termination edges 62 not exactly perpendicular to the axis of rotation in this embodiment 42 the main reflector and not exactly horizontal, but slightly tilted, in this embodiment, about 5 °, slightly towards a (not shown, right) light exit opening. Depending on the lighting task, however, the end edges may also be different.

Also clearly visible in this cross-sectional view is the very strongly inclined roof line or outer curvature line 64 of the secondary reflector 60 , pointing towards an in 2 right-side light exit opening (not shown) increases, so that a reflection in the room to be illuminated is better possible, as it is by the also in 2 Schematically illustrated light beam C is indicated.

The outer curvature line 64 closes at the in 2 shown with the horizontal an angle of about 35 °, but it is also inclined angle preferably between 10 ° and 60 °, but preferably below 45 ° possible.

In 2 is also clear the arrangement and the length of the additional reflector 80 seen. The additional reflector 80 extends substantially from the termination edge 44 of the main reflector 40 until well beyond the margins 62 of the secondary reflector 60 out into an interior area 66 of the secondary reflector 60 into it.

The edge 82 of the additional reflector 80 on which the side surfaces of the additional reflector 80 abutting one another, so that a cross-sectionally V-shaped additional reflector is formed, extends substantially vertically, but is opposite to the axis of rotation 42 of the main reflector 40 tilted at an angle of about 7 °.

3 shows an embodiment of a lamp according to the invention, which substantially in the 1 and 2 Ausführungsfor shown includes the Sekundärbeleuchtungssystems so that reference is made to the relevant description. Identical or similar components were provided with identical reference numerals.

How clearly in 3 Visible, this embodiment comprises a housing 100 , which is formed substantially cuboid-shaped and that on a side surface of the housing 100 a substantially rectangular light exit opening 102 includes.

Inside the case 100 are a main reflector 40 with a light source disposed therein 20 , a secondary reflector 60 and an additional reflector 80 ' arranged, wherein the geometric conditions substantially similar to those in the 1 and 2 correspond to embodiments shown.

Again 3 can be clearly seen, is also in this embodiment, the main reflector 40 formed substantially rotationally symmetrical, wherein an axis of rotation 42 essentially in the vertical direction and thus in the longitudinal direction of the cuboid housing 100 runs while the light exit opening 102 a plane substantially parallel to the axis of rotation 42 runs. The rotation axis 42 in this case also corresponds to a main emission direction of the main reflector 40 and the light source 20 , The upper end edge 44 of the main reflector 40 essentially closes with the lower edge 104 the light exit opening 102 off while the finishing edges 62 of the secondary reflector 60 in a vertical direction below the upper edge 106 the light exit opening 102 are located.

The in the 1 and 2 shown additional reflectors 80 are provided both on their outside and on their inside with reflective surfaces, while the in 3 shown embodiment of the additional reflector 80 ' has only reflective outer sides, the insides 84 However, the V-shaped additional reflector are formed matte black. The housing 100 the in 3 embodiment shown forms a bollard, so that in 3 embodiment shown a bollard light 200 represents, which can be provided in particular freely in the room or in outdoor areas. In the in the 1 and 2 The optical arrangements shown are elements that can be used in particular in wall or ceiling lights, but also in bollards, table and floor lamps, etc.

4 shows a further embodiment of an optical arrangement according to the invention 10 that are similar to those in 2 shown embodiment is constructed. Similar or identical components were therefore provided with identical reference numerals and it is on the description of 2 directed.

The main reflector 40 with light source 20 as well as the additional reflector 80 correspond to the in 2 shown embodiment of Sekundärbeleuchtungssystems 10 , The secondary reflector 60 is like the one in 2 shown secondary reflector also formed substantially troughs shaped, but has the in 4 shown secondary reflector 60 over its longitudinal extent to a substantially constant radius r. It should be noted at this point that while the radius r over the longitudinal extent of the secondary reflector 60 is constant, but not within a cross-sectional area. The cross section of the secondary reflector 60 is therefore not circular segment-shaped but substantially ellipsoidal. It should also be noted at this point that the secondary reflector in its cross section does not have to be symmetrical, but may also be formed asymmetrically depending on the lighting task. Its cross-section is preferably conical-shaped.

Furthermore, the in 4 shown secondary reflector 60 on his back not open, but he has a reflective, substantially flat end wall 68 on. In the 4 shown embodiment of the optical arrangement 10 can be used in different lights, for example, in a bollard, as in 3 is shown.

5 shows in cross section various embodiments of additional reflectors 80 ' wherein the cuts are substantially transverse to a longitudinal extent or a longitudinal axis of the additional reflector 80 ' are guided.

5a shows a substantially V-shaped additional reflector, the one edge 82 having, in the installed state, a directional component which is aligned with the secondary reflector. The inside 84 of the secondary reflector 80 ' , the opening of the "V" would be in the installed state substantially facing away from the secondary reflector A similar reflector is in the in 1 to 4 used embodiments shown.

5b shows a further Auführungsform an additional reflector 80 ' , which is also V-shaped, but with the additional reflector 80 ' is formed asymmetrically and a leg 88 longer than the other leg 86 and compared to the thigh 86 is also weaker.

5c shows a further embodiment of an additional reflector in cross section, although Also, this additional reflector can be considered substantially formed as a V-shaped, but a leg 86 ' is not straight but curved, in this embodiment, the leg 86 ' is formed substantially parabolic and a convex side of the leg 86 ' is aligned in the installed state in the direction of the secondary reflector, while the concave side (opening of the "V") facing away from the secondary reflector.

5d shows a further embodiment of an additional reflector according to the invention 80 ' , where both legs 86 ' and 88 ' similar to the one in 5c showed a thigh 86 ' are curved. In this embodiment, the legs are 86 ' . 88 ' both parabolic in shape, with both parabolas on one edge 82 ' , which corresponds to a longitudinal axis of the additional reflector, collide.

In 5e is another additional reflector 80 ' illustrated, which is formed substantially bird-shaped wings or dovetail-shaped, with this additional reflector 80 ' is formed asymmetrically and a leg 88 '' includes, compared to the leg 86 '' is designed to be more expansive. The thigh 86 '' and 88 '' also meet at an edge forming a longitudinal axis 82 '' together.

In 5f a further asymmetric auxiliary reflector is shown, which is curved and formed without an edge, wherein a concave inner side 84 ' is disposed substantially away from a secondary reflector, while a substantially convex outside 90 is arranged in the installed state of the additional reflector facing a secondary reflector.

5g Finally, shows a still further embodiment of an additional reflector, which is formed in cross-section substantially W-shaped and two edges 82 '' and 82 ''' of which there are two substantially concave legs with respect to a secondary reflector 86 ''' and 88 ''' extend. The two edges 82 ''' are with an arcuate, also substantially concave intermediate section 92 connected.

Each in the 5 underlying areas, especially the edges 82 . 82 ' . 82 '' and 82 ''' , but also the example in 5f Below lying portion of the curved reflector correspond to center areas, compared to those in a proper use of the additional reflector 80 ' the edge regions of the reflector, in particular the legs 86 . 86 ' . 86 '' . 86 ''' and 88 . 88 ' . 88 '' . 88 ''' with respect to the secondary reflector or its Hauptabstrahlrichtung are withdrawn.

In the 5a to 5g are each only a cross section of a particular embodiment of an additional reflector 80 ' However, it should be understood that additional reflectors may have identical cross-sectional shapes in a plurality of substantially mutually parallel cross-sectional areas, but may also differ over their longitudinal extent.

It is also possible that the additional reflector may be curved or bent in several directions, so that the additional reflector, for example, rotationally symmetrical or pyramidal or conical or else may be formed paraboloidally. In 5h is also a cross section of a rotationally symmetrical conical additional reflector 80 '''' disclosed, wherein the center region in this case, no edge, but the top 82 '''' the cone is, compared to the case of a proper installation of the additional reflector, the edge regions of the reflector, in this embodiment, the lateral surfaces 96 of the cone, with respect to the secondary reflector or its Hauptabstrahlsrichtung are withdrawn. In 5h is also an axis of rotation 94 of the additional reflector 80 '''' shown.

Of course it stands it is the skilled person, further embodiments of an additional reflector to use, in particular, individual elements of the additional reflectors shown to combine or to modify.

numerous Variations of the embodiments described above are possible. So can e.g. the housing the lamp take other forms than previously described or shown in the figures.

10

Secondary lighting system

20

light source

40

main reflector

42

axis of rotation (Main reflector)

44

End edge (main reflector)

46

interior (Main reflector)

60

secondary reflector

62

End edges (secondary reflector)

64

outer curvature line (Secondary reflector)

66

interior (Secondary reflector)

68

End wall (secondary reflector)

80 80 ', 80' '' '

additional reflectors

82 82 ', 82' ', 82' ''

edge (Additional reflector)

82 '' ''

top (Additional reflector)

84

inside (Supplementary reflector)

86 86 ', 86' ', 86' ''

leg (Additional reflector)

88 88 ', 88' ', 88' ''

leg (Additional reflector)

90

outside (Additional reflector)

92

intermediate element

94

axis of rotation (Additional reflector)

96

Lateral surface (conical additional reflector)

100

casing

102

Light opening

104

lower Edge (light exit surface)

106

upper Edge (light exit surface)

200

bollard

r

radius of curvature (Secondary reflector)

A, B, C

light rays

Claims (22)

Secondary lighting system ( 10 ), comprising: - a light source ( 20 ), - a main reflector ( 40 ), - one substantially opposite the main reflector ( 40 ) arranged secondary reflector ( 60 ) and - an additional reflector ( 80 . 80 ' ) which is curved and / or kinked so that its edge regions are at least partially withdrawn relative to a central region with respect to the secondary reflector or its Hauptabstrahlrichtung so that a radiation characteristic is generated with an enlarged opening angle, characterized in that the additional reflector ( 80 . 80 ' ) is arranged so that a part of the of the secondary reflector ( 60 ) reflected light on this additional reflector ( 80 . 80 ' ) and that towards the secondary reflector ( 60 ) aligned sides of the additional reflector ( 80 . 80 ' ) are formed reflecting. Secondary lighting system ( 10 ) according to claim 1, characterized in that the main reflector ( 40 ) is rotationally symmetrical. Secondary lighting system ( 10 ) according to claim 1 or 2, characterized in that the main reflector ( 40 ) Paraboloid is formed. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the main reflector ( 40 ) is conically shaped in its cross section. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the secondary reflector ( 60 ) is curved and / or kinked, wherein an inner side at least partially in the direction of the main reflector ( 40 ) is aligned. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the secondary reflector ( 60 ) is channel-shaped. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) at least partially between the main reflector ( 40 ) and the secondary reflector ( 60 ) is arranged. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) is elongated, wherein a longitudinal axis ( 82 ) has at least one direction component which is parallel to a main emission direction of the main reflector ( 40 ) runs. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) is at least partially V-shaped. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 ' ) is at least partially formed bird-wing-shaped. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector is at least partially channel-shaped. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) substantially from a height in which a termination edge ( 44 ) of the main reflector ( 40 ) and / or up to a height in which a termination edge ( 62 ) of the secondary reflector ( 60 ) extends. Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) to an interior area ( 66 ) of the secondary reflector ( 60 ) and / or in an interior area ( 46 ) of the main reflector ( 40 ). Secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the additional reflector ( 80 . 80 ' ) in the region of a light exit opening ( 102 ) is arranged. Secondary lighting system ( 10 ) after egg nem of the preceding claims, characterized in that the main reflector ( 40 ), the secondary reflector ( 60 ) and / or the additional reflector ( 80 ) have smooth or structured reflection surfaces. Luminaire with a secondary lighting system ( 10 ) according to one of the preceding claims, characterized in that the lamp is a housing ( 100 ) comprising a light exit opening ( 102 ) having. Luminaire according to claim 16, characterized in that the additional reflector ( 80 . 80 ' ) in the region of the light exit opening ( 102 ) is arranged. Luminaire according to claim 16 or 17, characterized in that the light exit opening ( 102 ) is substantially planar. Luminaire according to one of claims 16 to 18, characterized that the Light opening is rectangular, round or ellipsoidal. Luminaire according to one of claims 16 to 19, characterized in that a maximum dimension of the light exit opening ( 102 ) Does not exceed 350 mm. Luminaire according to one of claims 16 to 20, characterized in that the light exit opening ( 102 ) is provided with a translucent cover cover. Luminaire according to one of claims 16 to 21, characterized in that the additional reflector ( 80 . 80 ' ) is releasably attached.