EP2743571A2 - Electric light - Google Patents

Abstract

The lamp (8) has a reflector surface (R1) provided at a reflector base (1) and a light i.e. LED. The reflector surface comprises an outline (12). The light is provided at another reflector base (2) with another reflector surface (R2). The later reflector base comprises lateral shield elements (21) between which the light is positioned. Inner surfaces of the shield elements are turned towards the light and proportionately form the latter reflector surface. The shield elements comprise an outer edge border, which represents another outline.

Description

Field of application of the invention

The present invention relates to an electric lamp, in particular for use in aisles of shops, z. B. for supermarkets. The luminaire can be designed as a recessed spotlight or as an add-on spotlight for docking to a busbar or as a pendant luminaire for ceiling mounting. As a wall lamp results in a further use.

State of the art

The DE 10 2009 044 387 A1 relates to an outdoor lamp for illuminating traffic routes with a housing, arranged therein lamp modules in the form of LEDs. The bulb module has a flat, rectangular base with thermally conductive properties and upwardly curved ends. In the center of the base there is a heat conducting block on which a first LED chip is positioned. At each curved end, a parabolic reflector is fixed, which is open towards the center of the module and rising toward the first LED chip. The reflector has a long and a short leg and has a reflective surface. The long leg is disposed on the base-facing side, the short leg adjacent the curved end. In the transitions between the short and long leg, a second LED chip is ever arranged. The reflector has laterally in each transition from the short to the long leg on both sides of a deflection reflector. From the first LED chip, the light is emitted directly, whereas the light of the two second LED chips strikes the reflectors and from there reaches the area to be illuminated.

Subject of the EP 1 748 252 A2 / A3 is a vehicle headlamp with existing in a housing rectangular cells, which are illuminated by LED light sources. The cells are separated from each other by longitudinal struts and cross struts, wherein two narrow sides of cells on the central axis adjoin one another. Each individual cell has internally a reflective element in the form of an arcuate reflector. Inside the cross braces, the LED is located near the ground so that a vertical angle is created to the optical axis of the headlight. By the arrangement of the reflectors and the associated LED's is minimized the non-reflected beam component, thus achieving a high light intensity.

In the WO 2012 152 536 A1 For example, a lighting device with LEDs positioned in a housing as well as two first reflectors and a second reflector is proposed. The housing has side walls, an upper cover and opposite the light exit surface. Along the side walls, a plurality of reflection bodies are arranged, which have a first reflection surface and a second reflection surface, wherein the individual reflection bodies are separated by a partition wall. Each individual reflection body is assigned an LED. The light is directed to the second reflector via the two reflection surfaces of the reflection bodies. The second reflector has an arc-shaped, reflective microstructure and is attached to the top cover. From the second reflector, the light is directed towards the light exit surface, with a uniform light distribution takes place, namely in the horizontal and in the vertical direction.

From the US 2010/0284181 A1 is a wall washer with an elongated, cylindrical housing and a first reflector, a second reflector opposite thereto and a plurality of LED's known. The second reflector has a plurality of reflector chambers bounded by reflective sidewalls. There is a single LED in each reflector chamber. The single reflector chamber of the second reflector forwards the light emitted by the LED to the first reflector. The light is reflected by the first reflector towards the light exit.

In the "Lighting Tools for Retail, Food & Architecture 09" catalog of Ansorg GmbH, D-45473 Mühlheim an der Ruhr / Germany, on page 94 a special luminaire is used as double directional luminaire for use in corridors, eg. B. for supermarkets for two-sided illumination of the aisle forming shelf surfaces, offered. Seen in cross-section, this luminaire has two dish-shaped reflector halves opening downwards, which are connected to each other in parallel, so that the upper section of a heart shape is formed. Below the Herzinbuchtung a HIT bulb is arranged. The outer narrow sides of the luminaire are covered by housing elements. At the light exit side of the lamp, a strip-shaped anti-glare element is inserted centrally below the light source. The rays emitted by the lamp hit both reflector halves and are directed from here downwards to the respective side.

Object of the invention

In a further development of the known prior art, the present invention seeks to propose an improved luminaire, which is intended in particular for installation in a corridor and a light distribution mainly on one or both side surfaces, low proportion on the floor surface and possible glare-free in the direction of the passage allows. Here it can be assumed that the side surfaces are usually formed by shelving systems.

Another object is to be able to irradiate the height zones of the lateral shelf surfaces with different intensity, so that e.g. the more attractive goods usually positioned at eye-level of the customers on the shelves are highlighted, while the simpler lower-positioned standard goods require less illumination.

The luminaire to be created should be able to be produced inexpensively in series with the least possible use of material, efficient efficiency and in aesthetically pleasing design.

Overview of the invention

The electrical luminaire has at least a first reflector base which has at least one first reflector surface which has a first contour. Furthermore, the luminaire has at least a second reflector base with a second reflector surface provided thereon and a luminous means in the form of an LED, wherein the luminous means and the second reflector surface of the first reflector surface are associated with lighting technology. The second reflector base has two lateral shielding elements, between which the illuminant is positioned. The illuminants facing inner surfaces of the shielding elements each proportionately form the second reflector surface. The shield elements have an outer edge boundary, which represents a second contour.

1. a) für eine zweiseitige Lichtemission von der Leuchte, definiert als Doppel-Leuchte, weist:
   • aa) die zumindest eine erste Reflektorbasis zwei einander benachbarte erste Reflektorflächen auf oder es sind zwei erste Reflektorbasen mit jeweils einer ersten Reflektorfläche vorgesehen; und
   • ab) jeder ersten Reflektorfläche ist eine zweite Reflektorbasis mit einem Leuchtmittel zugeordnet; und
2. b) für eine einseitige Lichtemission von der Leuchte, definiert als Einfach-Leuchte, weist die erste Reflektorbasis eine erste Reflektorfläche auf und eine dieser mit dem Leuchtmittel zugeordnete zweite Reflektorbasis.

The following features relate to specific embodiments of the invention:

1. a) for a two-sided light emission from the luminaire, defined as a double luminaire, indicates:
   • aa) the at least one first reflector base has two adjacent first reflector surfaces or two first reflector bases each having a first reflector surface are provided; and
   • ab) each first reflector surface is associated with a second reflector base with a light source; and
2. b) for a unilateral light emission from the luminaire, defined as a single luminaire, the first reflector base has a first reflector surface and one of these with the luminous means associated second reflector base.

The second reflector base is U-shaped, and the shielding elements are connected to each other by means of a bottom segment. The shield elements have a curvature that represents a third contour and are directed to the adjacent first reflector surface.

A cover is provided to which the at least one second reflector base is attached. The cover also serves as a heat sink for the heat generated by the at least one light source. The cover having a cover wall and at least one side wall facing the at least one first reflector base comprises the luminaire from above. The at least one side wall has an inner surface on which the composite of the second reflector base and lighting means is mounted.

The single light source is inserted into an opening in the respective floor segment. The individual light source rests on a respective heat-conducting element, which rests on the inner surface of the cover acting as a heat sink. Between Illuminant and ground segment can be provided a shield which covers the lines connected to the lamp.

1. a) ist die erste Reflektorbasis im Prinzip von V-förmigem Querschnitt und weist zwei zueinander gegenüberliegende Hauptflanken auf, die sich gekrümmt aufwärts voneinander entfernen und deren Aussenflächen jeweils eine erste Reflektorfläche mit der ersten Konturierung bilden; oder
2. b) zwei erste Reflektorbasen mit jeweiliger Hauptflanke, die sich gekrümmt aufwärts voneinander entfernen und deren Aussenflächen jeweils eine erste Reflektorfläche mit der ersten Konturierung aufweisen, sind spiegelsymmetrisch zueinander positioniert.

For the production of a double light:

1. a) is the first reflector base in principle of V-shaped cross-section and has two mutually opposite main edges, which are curved upwards from each other and whose outer surfaces each form a first reflector surface with the first contouring; or
2. b) two first reflector bases each having a respective major flank, which are curved upward away from each other and whose outer surfaces each have a first reflector surface with the first contour, are positioned mirror-symmetrically to each other.

To produce a single luminaire, the first reflector base has a main flank which extends curved upward and whose outer surface forms the first reflector surface with the first contour.

With a double light, the two used first reflector bases are identical. In the case of a single luminaire, the first reflector base used, which is identical to the first reflector bases used in the double luminaire, is assigned a longitudinal diaphragm.

The first contour results from the curvature of the first reflector surface and additionally consists of a plurality of longitudinal strip-shaped sections, which adjoin one another in bent angles. The main flank has a base end at its lower edge. The portion of the major flank adjacent to the base end extends between approximately vertical and concave with respect to the base end. The upper portion of the first reflector surface tends increasingly in the horizontal.

1. a) ist eine Stelleinrichtung zum Variieren der relativen Positionierung zwischen der ersten Reflektorbasis und der zweiten Reflektorbasis vorgesehen; und
2. b) alternativ oder zusätzlich sind zur Stelleinrichtung verschieden konfigurierte erste Reflektorbasen und/oder zweite Reflektorbasen als Wechselreflektoren vorgesehen.

To adapt to the respective local conditions and lighting engineering objective in a lighting area:

1. a) is provided an adjusting means for varying the relative positioning between the first reflector base and the second reflector base; and
2. b) Alternatively or additionally, differently configured first reflector bases and / or second reflector bases are provided as interchangeable reflectors for the adjustment device.

1. a) des Verbunds aus Leuchtmittel und zweiter Reflektorbasis vertikal und/oder horizontal auf der Innenfläche der zumindest einen Seitenwandung der Abdeckung; oder
2. b) der zumindest einen ersten Reflektorbasis bzw. beider ersten Reflektorbasen.

The adjusting device is used to change position, namely:

1. a) the composite of the illuminant and the second reflector base vertically and / or horizontally on the inner surface of the at least one side wall of the cover; or
2. b) the at least one first reflector base or both first reflector bases.

The at least one first reflector base or both first reflector bases are connected to a housing. The housing is displaceable by means of the adjusting device relative to the cover with the arranged thereon at least one composite of lamp and second reflector base. The adjusting device can be activated with an actuating element mounted on the cover and a threaded pin connected thereto, which engages in a nut fixed to the housing.

Depending on the length of the first reflector surface, it is possible to arrange at least two second reflector bases at a defined distance from each other.

To form the luminaire as an add-on spotlight, an adapter is provided for the current tap and for docking to a busbar on the top wall. For secure mounting of the lamp to the busbar is spaced from the adapter on the top wall a second suspension fixed, which engages in the docked state in the busbar. By means of a lock, the positive engagement of the second suspension can be locked. In the housing are electrical components, such as ballasts, installed. Side parts of the housing close off the open sides of the at least one first reflector base.

Brief description of the attached drawings

Figur 1

- Den von einer herkömmlichen Leuchte in einem Gang emittierten Strahlenverlauf, unspezifisch in Richtung Gangflucht, Boden- und Seitenflächen, als Prinzipdarstellung;

Figur 2

- die von einer erfindungsgemässen Leuchte in einem Gang zu erzielende Lichtverteilung, hauptsächlich auf beide Seitenflächen, gering anteilig auf die Bodenfläche und möglichst blendfrei in Richtung der Gangflucht, als Prinzipdarstellung;

Figur 3A

- eine erfindungsgemässe Leuchte erster Variante als Doppel-Leuchte, in Perspektivansicht von unten;

Figur 3B

- die Leuchte gemäss Figur 3A, in Perspektivansicht von oben;

Figur 3C

- die Leuchte gemäss Figur 3A, in gewechselter Perspektivansicht von unten;

Figur 3D

- die Leuchte gemäss Figur 3A, in erneut gewechselter Perspektivansicht von unten;

Figur 3E

- die Leuchte gemäss Figur 3A, in Seitenansicht;

Figur 3F

- den Aufbau gemäss Figur 3E, ohne zweite Reflektorbasen, in Seitenansicht;

Figur 3G

- die Leuchte gemäss Figur 3A, komplettiert mit Adapter und Zweitaufhängung, in perspektivischer Draufsicht;

Figur 4A

- das Gehäuseteil und die erste Reflektorbasis als separate Teile der Leuchte gemäss Figur 3A, in perspektivischer Draufsicht;

Figur 4B

- das Gehäuseteil separat und die erste Reflektorbasis aus Figur 3A mit Abdeckung und Vorschaltgerät sowie separaten Wärmeleitelementen und Leuchtmitteln mit Zuleitungen, in Seitenansicht;

Figur 5A

- eine zweite Reflektorbasis aus Figur 3C, in vergrösserter Perspektivansicht;

Figur 5B

- eine zweite Reflektorbasis in Kombination mit dem Wärmeleitelement und Zuleitungen aus Figur 3C, in perspektivischer Rückansicht;

Figur 5C

- den Aufbau gemäss Figur 5B, in Draufsicht;

Figur 6A

- eine erfindungsgemässe Leuchte zweiter Variante als Einfach-Leuchte, mit nur einer ersten Reflektorfläche, in Perspektivansicht von unten;

Figur 6B

- die Leuchte gemäss Figur 6A, in Seitenansicht;

Figur 6C

- die Leuchte gemäss Figur 6A, mit modifizierter zweiter Reflektorbasis und zusätzlichem Schild, in perspektivischer Explosivansicht von unten;

Figur 6D

- das vergrösserte Detail X1 aus Figur 6C;

Figur 7A

- die Leuchte gemäss Figur 6B, mit einer ersten Reflektorbasis mit erster Geometrie zur Erzielung einer engen Lichtverteilung, in Seitenansicht;

Figur 7B

- die Leuchte gemäss Figur 7A, mit einer ersten Reflektorbasis mit zweiter Geometrie zur Erzielung einer breiten Lichtverteilung, in Seitenansicht;

Figur 8

- die Doppel-Leuchte gemäss Figur 3A, in modifizierter Bauweise, mit Stelleinrichtung, in perspektivischer Explosivansicht von unten;

Figur 9A

- die Leuchte gemäss Figur 8 im montierten Zustand, erste Reflektorbasen nach unten gefahren, in Perspektivansicht von oben;

Figur 9B

- die Leuchte in der Einstellung gemäss Figur 9A, im Querschnitt;

Figur 9C

- die Leuchte in der Einstellung gemäss Figur 9A, mit breiter Lichtverteilung, als Prinzipdarstellung;

Figur 10A

- die Leuchte gemäss Figur 8 im montierten Zustand, erste Reflektorbasen nach oben gefahren, in Perspektivansicht von oben; und

Figur 10B

- die Leuchte in der Einstellung gemäss Figur 10A, mit enger Lichtverteilung, als Prinzipdarstellung.

Show it:

FIG. 1

- The emitted by a conventional lamp in a corridor course, nonspecific in the direction of the passage, floor and side surfaces, as a schematic representation;

FIG. 2

- The light distribution to be achieved by a lamp according to the invention in a corridor, mainly on both side surfaces, low proportion on the floor surface and possible glare-free in the direction of the passage, as a schematic representation;

FIG. 3A

- An inventive lamp first variant as a double light, in perspective view from below;

FIG. 3B

- the lamp according to FIG. 3A in perspective view from above;

FIG. 3C

- the lamp according to FIG. 3A in changed perspective view from below;

Figure 3D

- the lamp according to FIG. 3A , in again changed perspective view from below;

FIG. 3E

- the lamp according to FIG. 3A , in side view;

FIG. 3F

- the structure according to FIG. 3E , without second reflector bases, in side view;

Figure 3G

- the lamp according to FIG. 3A , completed with adapter and second suspension, in perspective plan view;

FIG. 4A

- The housing part and the first reflector base as separate parts of the lamp according to FIG. 3A in perspective plan view;

FIG. 4B

- The housing part separately and the first reflector base FIG. 3A with cover and ballast as well as separate heat-conducting elements and light sources with supply lines, in side view;

FIG. 5A

- A second reflector base FIG. 3C , in enlarged perspective view;

FIG. 5B

- A second reflector base in combination with the heat conducting element and leads from FIG. 3C , in perspective rear view;

FIG. 5C

- the structure according to FIG. 5B in plan view;

FIG. 6A

- A light according to the invention second variant as a single light, with only a first reflector surface, in perspective view from below;

FIG. 6B

- the lamp according to FIG. 6A , in side view;

FIG. 6C

- the lamp according to FIG. 6A , with modified second reflector base and additional plate, in perspective exploded view from below;

FIG. 6D

- the enlarged detail X1 FIG. 6C ;

FIG. 7A

- the lamp according to FIG. 6B , with a first reflector base with first geometry to achieve a narrow light distribution, in side view;

FIG. 7B

- the lamp according to FIG. 7A , with a first reflector base with second geometry to achieve a broad distribution of light, in side view;

FIG. 8

- the double light according to FIG. 3A , in modified construction, with adjusting device, in perspective exploded view from below;

Figure 9A

- the lamp according to FIG. 8 in mounted state, first reflector bases moved down, in perspective view from above;

FIG. 9B

- the light in the setting according to Figure 9A , in cross section;

FIG. 9C

- the light in the setting according to Figure 9A , with broad distribution of light, as schematic representation;

Figure 10A

- the lamp according to FIG. 8 in the assembled state, first reflector bases moved upwards, in perspective view from above; and

FIG. 10B

- the light in the setting according to Figure 10A , with narrow light distribution, as a schematic representation.

embodiment

With reference to the accompanying drawings, the detailed description of exemplary embodiments of the inventive electric lamp with alternative features will be given below.

The following definition applies to the entire further description. If reference numerals are included in a figure for the purpose of graphic clarity, but are not explained in the directly related descriptive text, reference is hereby made to their mention in preceding or subsequent description of the figures. In the interest of clarity, the repeated designation of components in other figures is usually dispensed with, as far as the drawing clearly shows that they are "recurring" components.

FIG. 1

A conventional lamp 98 is fixed by means of a suspension 99 on the ceiling over a corridor, which in both directions of the aisle the alignment plane 90, the bottom surface 91 and to be equipped with shelves side surfaces 92 . Simplified, only the front side surface 92 is drawn, but in most cases two side surfaces 92 are present. The light radiation emitted by this luminaire 98 proceeds nonspecifically as light propagation L0 in the direction of the alignment plane 90, as light propagation L1 toward the bottom surface 91, and as light propagation L2 toward one or both side surfaces 92. This would make it difficult to dazzle customers coming from both directions into the corridor, and floor area 91 and side surfaces 92 are illuminated unaccambered.

FIG. 2

The aim of the invention is to form the mounted on the suspension 99 lamp 98 so that the light radiation over the lighting area 9 as the main light propagation L2 on only one or both side surfaces 92, as low light propagation L1 on the bottom surface 91 and at least largely low glare Light propagation L0 extends into the alignment plane 90 . The latter case, in order to enter the corridor and therein customers are not disturbed by dazzling light radiation.

FIGS. 3A to 4B

In this sequence of figures, the luminaire 98 of the first variant is equipped with two mirror-symmetrically arranged first reflector surfaces R1 a first reflector base 1 and an associated light source 4 , the first reflector surfaces R1 having a first contour 12 , the light source 4 being provided on a second reflector base 2 having a second reflector surface R2 thereon and each of the two first reflector surfaces R1 having such a second reflector base 2 is associated with 4 bulbs.

The elongated, thus resulting double luminaire 98 consists essentially of the first reflector base 1, two second reflector bases 2 , two heat-conducting elements 3 - eg a foil -, the luminescent means 4, a ballast 78 and the cover 6. In the version as a mounted spotlight for ceiling mounting for docking to a power rail, the light 98 further above the adapter 7 and the second suspension 76 .

The first reflector base 1 is quasi V-shaped with two mutually opposite main edges 11, which each form a first reflector surface R1 . The main edges 11 are connected to each other at the lower edge by a horizontally extending base end 10 . The two first reflector surfaces R1 drift curved mirror-symmetrically apart and are provided with a first contour 12 , which consists of a plurality of longitudinal strip-shaped sections which adjoin one another in bending angles. The respectively adjacent to the base end 10 portion of both first reflector surfaces R1 extends approximately vertically, so that here the section-wise main edge 11 with respect to the base end 10 assumes an angle of almost 90 °. By contrast, the upper sections on the first reflector surfaces R1 are increasingly horizontal. The two uppermost portions are interrupted by recesses 14 , so that edge portions 13 and recesses 14 arise alternately. The edge portions 13 and recesses 14 are mirror images of each other on both first reflector surfaces R1 . In the base end 10 , an elongated slot 15 is present, which favors the air circulation through the lamp 98 and the removal of the light bulbs 4 - preferably LED's - resulting heat is used. The spanned by the cross section of the first reflector base 1 between the main edges 11 and the base end 10 side surfaces are closed by a respective side part 180 .

The U-shaped cover 6 is set from above onto the first reflector base 1 and encloses the first reflector base 1 , as it were, from three sides . The cover 6 has a cover wall 60 from which a respective side wall 61 continues. The two side walls 61 extend aligned parallel to one another, and their inner surfaces 62 face the respectively adjacent first reflector surface R1 . The inner surfaces 62 have no light-reflecting effect. In each case, a semicircular widening 63 sets in at the middle at the lower edges of the side walls 61 , whereby additional area for intensifying the dissipation of the heat generated by the light sources 4 arises. The top wall 60 of the cover 6 has elongated slots 64, which are also provided for the purpose of heat dissipation. The ballast 78 is housed in the cavity internally of the first reflector base 1 behind the side members 180 . In the state of the mounted on the first reflector base 1 cover 6 , the recesses 14 give lateral ventilation slots for heat dissipation.

The fixed on the top wall 60 adapter 7 is of conventional design and is used in the lamp 98 in the form of a mounted spotlight for power and for docking to a power rail. From the adapter 7 , an electrical connection to the ballast 78. For secure mounting, the lamp 98 is fixed to the busbar spaced from the adapter 7 on the top wall 60, a second suspension 76 , which engages in the docked state in the busbar, and by means of the latch 77th can be the positive engagement lock.

On each of the two inner surfaces 62 of the cover 6 , a composite of the second reflector base 2 and the heat-conducting element 3 is arranged above the extension 63 . The film-like heat conducting element 3 is seated with its rear side on the inner surface 62 and carries on its front side the lighting means 4, preferably in the form of an LED, to which the power supplying lines 40 are connected. The leads 40 lead to the ballast 78. The cover 6 is thus multifunctional, namely as the top cover of the light 98, for holding the composite of the second reflector base 2 and the heat-conducting element 3 and as a heat sink.

To better illustrate the mounting situation of second reflector bases 2 and heat conducting elements 3 on the cover 6 are in FIG. 3F the second reflector bases 2 removed. If the second reflector bases 2 have also been installed, the screws 39 project through the holes in the bottom segment 20 of the respective second reflector base 2 and the holes lying congruently behind them in the heat-conducting element 3 and engage in the inner surface 62 of the associated side wall 61 .

The individual second reflector base 2 has two screen elements 21 which are spaced apart from one another and are congruently cut and which are formed on their inner sides directed toward one another as second reflector surfaces R2 . The free outer circumference of each screen element 21 defines a second contour 22. The second reflector bases 2 are positioned opposite the respective upper area of the arcuately facing main flank 11 , wherein the screen elements 21 are oriented in all directions in principle perpendicular to the main flank 11 .

FIGS. 5A to 5C

The two shield elements 21 bend from a ground segment 20 in the same direction, so that the second reflector base 2 is U-shaped. The floor segment 20 has an opening 24 in which the circuit board of the luminous means 4 finds room, which sits on the front side of the heat conducting element 3 . The rear side of the bottom segment 20 comes to rest on the front side of the heat-conducting element 3 . The majority of the heat generated by the lamp 4 is introduced via the heat-conducting element 3 in the cover 6 . With respect to the vertical plane, the shielding elements 21 are curved with the inner second reflector surface R2 , which results in a defined third contouring 23 .

With the dimensioning and shaping of the two first reflector surfaces R1 in conjunction with the dimensioning, shaping and positioning The second reflector surfaces R2 within the luminaire 98 produces the desired light propagation L0 , L1 and L2 in the object of the invention .

• Es steht eine erfindungsgemässe Leuchte 98 mit einer Länge der beiden ersten Reflektorflächen R1 von 30cm und einer gesamten Breite von 20cm zur Verfügung. Die beiden zweiten Reflektorbasen 2 sind mit je einer LED als Leuchtmittel 4 bestückt, die bei aufgehängter Leuchte 98 sich in einer Höhe von 320cm befinden. Das zu bestrahlende Beleuchtungsareal 9 ist ein gerader Gangabschnitt der Länge von 400cm und der Breite von 200cm. Die Seitenflächen 92 des Ganges werden von Warenregalen der Höhe von 200cm gebildet. Die Leuchte 98 ist in Längs- und Breitenerstreckung des Gangabschnitts jeweils mittig aufgehängt. Sich anschliessende Gangabschnitte werden jeweils mit einer weiteren Leuchte 98 versehen. Die im Bereich der Normaugenhöhe von 160cm positionierten Waren sind mit der Lichtausbreitung L2 akzentuiert zu bestrahlen, um diese Waren exponiert zu präsentieren. Die in den Regalflächen abwärts eingestellten Waren bedürfen weniger Licht. Auf den Boden 91 soll in der Lichtausbreitung L1 nur ein geringer Lichtanteil fallen und in Ganglängsrichtung muss die Lichtausbreitung L0 so begrenzt werden, dass für die Kundschaft eine belästigende Blendwirkung unterbleibt.

Now a design example is described, in which one accepts the following conditions, wherein the length measures are range indications:

• There is an inventive lamp 98 with a length of the first two reflector surfaces R1 of 30cm and a total width of 20cm available. The two second reflector bases 2 are each equipped with an LED as a light source 4 , which are at suspended luminaire 98 in a height of 320cm. The illumination area 9 to be irradiated is a straight passage section of length 400 cm and width 200 cm. The side surfaces 92 of the aisle are formed by shelves of height of 200cm. The lamp 98 is suspended centrally in the longitudinal and width extension of the passage section. Subsequent passage sections are each provided with a further light 98 . The goods positioned in the range of the standard eye height of 160cm shall be accentuated with the light propagation L2 irradiated in order to present these goods exposed. The goods set down in the shelf areas require less light. On the floor 91 , only a small proportion of light should fall in the light propagation L1 , and in the longitudinal direction of the passage, the light propagation L0 must be limited in such a way that a disturbing dazzling effect is avoided for the clientele.

During operation of the luminaire 98 , a first part of the light beams emitted by the two luminous means 4 passes directly to the respectively adjacent first reflector surface R1 and is directed from there into the light propagation L2 on the two side surfaces 92 and L1 onto the bottom surface 91 . The light propagation L1, L2 are spread over the length of the passage section, the light propagation L2 for irradiation of the side surfaces 92 in addition to the height.

A second part of the light beams emitted by the light sources 4 first strikes the second reflector surface R2, which is present on the associated pair of screen elements 21 of the relevant second reflector base 2 , and from here to the respectively adjacent first reflector surface R1 , to now in proportionate spread light propagation L2 on the two side surfaces 92 and to be directed as L1 on the bottom surface 91 . In particular, the second contour 22 as a boundary of the screen elements 21 prevents light propagation L0 in both directions of escape from the corridor, which could otherwise bother the clientele in progress by glare.

FIGS. 6A to 6D

In this figure a result, the lamp 98 of the second variant in the equipment as a single lamp 98 is illustrated with only one first reflector surface R1 at a first reflector base 1 and an associated lighting means. 4 The single luminaire 98 is formed in principle when dividing the double luminaire 98 according to the first variant on the vertical central axis, and thus the previously existing first reflector base 1 with the two mirror-image first reflector surfaces R1 now quasi halved. The ballast 78 is then to be dimensioned with lower power. In the design of the single luminaire 98 for wall installation you can attach a custom suspension 99 laterally outside the light 98 to the side wall 61 of the cover 6 or continue on the top wall 60. When positioning the single light 98 in a corridor on a wall the opposite wall surface is irradiated - with the shelving system for product presentation erected there - and slightly the aisle floor.

The first contour 12 present on the first reflector surface R1 is unchanged, the illuminant 4 also being provided unchanged on the second reflector base 2 with the second reflector surface R2 present thereon. Here, however, only the first reflector surface R1 , the second reflector base 2 is associated with the light source 4 . The elongated, thus resulting simple light 98 consists essentially of the first reflector base 1, the housing 18, a second reflector base 2, a heat conducting element 3, the light source 4, the shield 5, the cover 6 and the ballast 78. In the Version as a spotlight for ceiling mounting for docking to a power rail, the light 98 further above the adapter 7 and optionally the second suspension 76, not shown here.

In the following, the constructive differences of the single luminaire 98 of the second variant with respect to the previously described double luminaire 98 of the first variant (see FIG. FIGS. 3A to 4B ) mentioned.

The first reflector base 1 consists of the curved main flank 11 with the first reflector surface R1 and the lower end attached to the base end 10. The reflector base 1 is assigned a preferably separate longitudinal aperture 16, with its base end 160 together with the base end 10 in a Horizontal plane comes to rest. From the base end 160 extends upwardly the wall panel 161, to which the final fold 162 attaches. Within the assembled base ends 10, 160 there is a proportionate slot 15 extending in both. The geometry of the first reflector surface R1 is unchanged, only the upper portion has - along the edge portion 13 - no recesses 14. Each narrow side of the base ends 10,160 has a nose- shaped second attachment member 19th

The lamp 98 further comprises a multi-folded sheet metal part as a housing 18, which has the horizontal frame 183 between the two side parts 180 . From the frame 183 extending - between the two side parts 180 - a first longitudinal strut 181 and a second thereto opposite longitudinal strut 182. At the lower ends of the longitudinal struts 181,182 each has a fold at which the first reflector base 1 and the longitudinal aperture 16, for by screws, can be fixed. In each side part 180 first fastening members 189 are respectively provided at the lower edge, which cooperate in the assembled state with the second fastening members 19 at the base ends 10,160 . The side parts 180 of the housing 18 fit as a respective cover in the open on both sides cross section of the reflector base 1 and the longitudinal aperture 16 a. The frame 183 has a recess 184, which serves to dissipate heat from the ballast 78 , which is attached to the frame 183 , for example by means of screws.

The U-shaped cover 6 is set from above on the housing 18 , so that the top wall 60 comes to lie over the frame 183 , a side wall 61, the first reflector base 1 and the other side wall 61, the longitudinal aperture 16 surrounds. Both side walls 61 extend parallel to each other, wherein an inner surface 62 of the adjacent first reflector surface R1 faces. To mount the cover 6 on the housing 18 are fixing organs 69, which engage through the top wall 60 in the frame 183 of the housing 18 . Distance elements 68 between the top wall 60 and frame 183 cause an air gap, which favors heat dissipation. On the top wall 60 of the housing 6 , a ground terminal 79 is attached.

On the inner surface 62 of the first reflector base 1 facing side wall 61 of the cover 6 , the composite of the second reflector base 2, shield 5, illuminant 4 and heat conducting element 3 is arranged. The foil-like heat conducting element 3 is seated with its rear side on the inner surface 62 and carries on the front side the light source 4, preferably in the form of an LED, to the power supplying lines 40 are connected, which are connected to the ballast 78 .

To better illustrate the structure of the composite of the second reflector base 2, shield 5, 4 and 4 heat-conducting 3 are in FIG. 6D these components shown separated from each other, however, form a sandwich in the assembled state. The heat-conducting element 3 is intended to rest on the inner surface 62 of the side wall 61 . For this purpose, the illuminant 4 is positioned, wherein between the illuminant 4 and the reflector base 2, the shield 5 is inserted. The lighting means 4 is here complementary in existing at the bottom of segment 50 opening 54. In integrated second reflector base 2, the screws 39 project through the holes in the bottom segment 20, the opening behind congruent lying 54 in the plate 5, the holes in the light-emitting means 4 and the holes in the Wärmeleitelement 3 and engage in the side wall 61 a. From the bottom segment 50 of the shield 5 each a side leg 51 goes to optical shield connected to the lamps 4 lines 40 from both sides.

FIGS. 7A and 7B

Based on two examples, this pair of figures illustrates the influenceability of the light distribution generated by the single luminaire 98 by changing the geometry of the reflector surface R1 at the first reflector base 1. All other components are opposite to the FIGS. 6A to 6D unchanged.

FIG. 7A

In the case of the first reflector base 1 present here in a first geometric configuration, a first part of the light beams emitted by the illuminant 4 passes directly onto the first reflector surface R1 , while a second part of the light beams generated by the illuminant 4 first strikes the second reflector surfaces R2 of the second reflector base 2 and is directed from here to the first reflector surface R1 . As a result of the special geometry of the first reflector surface R1 , all of the incident light beams are directed by this in a narrow light distribution LX onto the area to be illuminated.

FIG. 7B

The second geometric design of the first reflector base 1 has a stronger curvature. Again, a first part of the light rays coming from the light source 4 passes directly to the first reflector surface R1 and a second part only to the first reflector surface R1 via the second reflector surfaces R2 . Due to the change in the curvature of the first reflector surface R1 , all of the light beams striking it are now directed onto the area to be illuminated in a broad, more spread-out light distribution LY .

FIG. 8

Now again a double light 98 is treated as in the figure sequence 3A-4B, but provided in a slightly modified construction and with an adjusting device 8 . There are two separate, mirror-image, namely V-shaped mutually arranged first reflector base 1 with the respective first reflector surface R1 and a second reflector base 2 positioned opposite thereto with their second reflector surfaces R2 and the associated light source 4. Each reflector base 1 has a curved main flank 11, at which the first reflector surface R1 is formed. At the lower end of the main flank 11 , the bent, strip-shaped base end 10 sets. In the assembled state, both base ends 10 come to lie in a horizontal plane. Within the two assembled base ends 10 a proportionately extending in both slot 15 is present. Each narrow side of the base ends 10 has a nose-shaped second attachment member 19. In the upper folded edge portion 13 small recesses 14 are present. The composition of two reflector bases 1 in the local double light 98 and a single light 98 according to the Figures 6A-6C from a reflector base 1 with the longitudinal aperture 16 is advantageous for the production, since with the same geometric design of the reflector bases 1 one only has to produce a variant which can be used for both types of luminaire.

The combination of two joined first reflector base 1 adapted housing 18 is again a multi-beveled sheet metal part with arranged between the two side parts 180 horizontal frame 183. In the frame 183 are those longitudinally flanking and extending between the two side parts 180, a first longitudinal strut 181 and an opposing second longitudinal strut 182 provided. These longitudinal struts 181 , 182 are formed by a U-profile with an open end facing toward one another in order to screw on each of the upper ends of a first reflector base 1 . Each side part 180 has at the lower edge first fastening members 189, which are connected in the assembled state with second fastening members 19 at the base ends 10 . The side parts 180 of the housing 18 fit as a respective cover in the open on both sides cross section of the two composite reflector bases 1 a. The existing in the frame 183 recess 184 is divided by intersecting support strips 185 . Below the support strips 185 , electrical components, such as ballasts 78, can be installed. The recesses 14 in the reflector bases 1, the recesses 186 in the longitudinal struts 181, 182 and the recess 184 in the frame 183 are used to pass electrical lines 40 between the adapter 7 and the ballasts 78 and further to the lighting means 4. In the embodiment as surface-mounted spotlights for ceiling mounting for docking to a power rail, the light 98 has a Adapter 7 and a second suspension 76, which are mounted on the top wall 60 of the cover 6 .

In order to vary the light distribution generated by the luminaire 98 , it is equipped with an adjusting device 8 with which the first reflector bases 1 suspended on the housing 18 can be adjusted in the vertical direction to the second reflector bases 2 firmly seated on the inner surfaces 62 of the cover 6 . The adjusting device 8 consists initially of a hand accessible, knurled actuator 80 with downwardly directed threaded pin 81, which is intended to engage in a fixed to the support strips 185 nut 82 . Furthermore, the adjusting device 8 comprises guide pins 83 with uppermost provided spacer elements 838, springs 84 and end pieces 85th

FIGS. 9A to 9C

In this group of figures, the first reflector bases 1 are moved downwards in relation to the cover 6 with the second reflector bases 2 seated thereon. The guide pins 83 fixed in the rectangle on the underside of the cover wall 60 with their spacer elements 838 and projecting downwards project through the frame 183 of the housing 18. At the lower end of each guide pin 83 , an end piece 85 is fixed, eg consisting of a washer and a screw. On the guide pin 83 is seated a spring 84 which is supported at the top against the frame 183 and below against the tail 85 . When the first reflector bases 1 are moved downwards, it is necessary to move the actuating element 80 against the action of the springs 84 , the maximum downward adjustment being achieved with the full compression of the springs 84 . In this setting, the second reflector bases 2 are moved close to the respective upper outlet of the first reflector bases 1 , so that a downwardly directed, narrow light distribution LX ' on both sides of the double luminaire 98 arises on the areas to be illuminated.

Figures 10A and 10B

Upon upward, the relaxing springs 84 assist in lifting first reflector lugs 1 and housing 18, the uppermost setting being limited by abutment of the frame 183 with the spacer elements 838 . For heat dissipation remains an air gap between the upper end of the housing 18 and the top wall 60 of the cover 6. In this setting, the second reflector bases 2 are further away from the respective upper outlet of the first reflector bases 1 , so that of the double light 98 on both sides continues downwardly directed, but more widely spread light distribution LY ' on the areas to be illuminated arises. The variation of the light distribution is now not achieved by a change of the first reflector bases 1 with a different geometric curvature, as in the FIGS. 7A and 7B shown, but now with identical first reflector bases 1 and actuation of the adjusting device . 8

• Bei adäquater Verlängerung der Leuchte 98 könnte man je nach Vorhandensein einer oder zweier erster Reflektorflächen R1 nur einerseits oder beidseits der ersten Reflektorbasis 1 jeweils mehr als nur eine zweite Reflektorbasis 2 vorsehen. Die jeweils mehreren der benachbarten ersten Reflektorfläche R1 zugewandten zweiten Reflektorbasen 2 wären dann in definiertem Abstand zueinander angeordnet.
• Alternativ zur oben beschriebenen Stelleinrichtung 8 kann man zur Anpassung an die jeweils örtlichen Gegebenheiten und Zielstellung vorsehen, den Verbund aus Wärmeleitelement 3 mit dem darauf sitzenden Leuchtmittel 4, eventuell eingefügtem Schild 5 und der zweiten Reflektorbasis 2 vertikal und/oder horizontal justierbar auf der Innenfläche 62 der betreffenden Seitenwandung 61 der Abdeckung 6 zu gestalten.
• Ebenfalls zur Anpassung an eine konkrete Gangsituation und Zielstellung kann man alternativ oder zusätzlich zur justierbaren Positionierung der zweiten Reflektorbasen 2 verschieden konfigurierte erste Reflektorbasen 1 und/oder zweite Reflektorbasen 2 als Wechselreflektoren vorsehen.

Expressly mentioned are the following possible additional features on the previously described light 98:

• With adequate extension of the luminaire 98 , depending on the presence of one or two first reflector surfaces R1, only one or both sides of the first reflector base 1 could be provided with more than just a second reflector base 2 . Each of the plurality of adjacent second reflector surface 2 facing the first reflector surface R1 would then be arranged at a defined distance from one another.
• Alternatively to the above-described actuator 8 may be provided for adaptation to the respective local conditions and target position, the composite of heat-conducting element 3 with the seated thereon lamps 4, eventually an inserted plate 5 and the second reflector base 2 vertically and / or horizontally adjustable on the inner surface 62 the respective side wall 61 of the cover 6 to make.
• Likewise, in order to adapt to a specific gait situation and target position, alternatively or in addition to the adjustable positioning of the second reflector bases 2, differently configured first reflector bases 1 and / or second reflector bases 2 can be provided as interchangeable reflectors.

Claims (15)

Electric light (98) with: a) at least one first reflector base (1) having at least a first reflector surface (R1) having a first contour (12) ; and b) at least one second reflector base (2) with a second reflector surface (R2) and a light source (4) in the form of an LED, wherein the light source (4) and the second reflector surface (R2) are associated with the first reflector surface (R1 ) are characterized. that c) the second reflector base (2) has two lateral shielding elements (21 ), between which the lighting means (4) is positioned; d) the inner surfaces of the shielding elements (21 ) facing the luminous means (4) in each case proportionately form the second reflector surface (R2) ; and e) the screen elements (21) have an outer edge boundary, which is a second contour (22). Electric lamp (98) according to claim 1, characterized in that a) for a bilateral light emission from the luminaire (98), defined as a double luminaire (98): aa) the at least one first reflector base (1) has two adjoining first reflector surfaces (R1 ) or two first reflector bases (1) each having a first reflector surface (R1 ) are provided; and ab) a second reflector base (2) having a light source (4) is assigned to each first reflector surface (R1 ); and b) for a unilateral light emission from the light (98), defined as a single light (98), the first reflector base (1) has a first reflector surface (R1 ) and this associated with a second reflector base (2) with the light source (4) is. Electric lamp (98) according to one of claims 1 or 2, characterized in that a) the second reflector base (2) is U-shaped and the screen elements (21 ) are interconnected by means of a bottom segment (20) ; and b) the shield elements (21 ) have a curvature which represents a third contour (23) and are directed to the adjacent first reflector surface (R1 ). Electric lamp (98) according to one of claims 1 to 3, characterized in that a) a cover (6) is provided, on which the at least one second reflector base (2) is attached; and b) the cover (6) serves at the same time as a heat sink for the heat generated by the at least one lighting means (4) . Electric lamp (98) according to claim 4, characterized in that a) the cover (6) with a top wall (60) and at least one side wall (61) which faces the at least one first reflector base (1) , the lamp (98) from above comprises; and b) the at least one side wall (61) has an inner surface (62) on which the composite of the second reflector base (2) and lighting means (4) is attached. Electric lamp (98) according to one of claims 3 to 5, characterized in that a) the individual lighting means (4) is inserted into an opening (24) in the respective floor segment (20) ; b) the individual lighting means (4) rests on a respective heat-conducting element (3) , which rests on the inner surface (62) of the cover (6) acting as a heat sink; and c) between the light source (4) and ground segment (20) a shield (5) can be provided, which covers the on the light source (4) connected lines (40) . Electric lamp (98) according to one of claims 1 to 6, characterized in that for producing a double lamp (98): a) the first reflector base (1) is in principle of V-shaped cross section and has two mutually opposite main edges (11) , which curved away from each other and whose outer surfaces each form a first reflector surface (R1 ) with the first contour (12) ; or b) two first reflector bases (1) with respective main flank (11) which are curved upward away from each other and whose outer surfaces each have a first reflector surface (R1 ) with the first contour (12) are positioned mirror-symmetrically to each other. Electric lamp (98) according to any one of claims 1 to 6, characterized in that for the production of a single lamp (98), the first reflector base (1) has a main flank (11) which extends curved upward and the outer surface of the first reflector surface (R1 ) forms with the first contour (12) . Electric lamp (98) according to claims 7 and 8, characterized in that a) in a double lamp (98), the two used first reflector bases (1) are identical; and b) in the case of a single luminaire (98) of the first reflector base (1) used, which is identical to the first reflector bases ( 1) used in the double luminaire (98) , a longitudinal diaphragm (16) is assigned. Electric lamp (98) according to one of claims 1 to 9, characterized in that a) the first contouring (12) results from the curvature of the first reflector surface (R1) and additionally consists of a plurality of longitudinal strip-shaped sections which adjoin one another in bent angles; b) the main flank (11) has at its lower edge a base end (10) ; c) the portion of the major flank (11 ) adjacent to the base end (10) extends between approximately vertical and concave with respect to the base end (10) ; and d) the upper portion of the first reflector surface (R1 ) increasingly tends to the horizontal. Electric lamp (98) according to one of claims 1 to 10, characterized in that for adaptation to the respective local conditions and lighting engineering objective in a lighting area (9): a) an adjusting device (8) for varying the relative positioning between the first reflector base (1) and the second reflector base (2) is provided; and b) as an alternative or in addition to the adjusting device (8), differently configured first reflector bases (1) and / or second reflector bases (2) are provided as interchangeable reflectors. Electric lamp (98) according to claim 11, characterized in that the adjusting device (8) serves to change position, namely: a) the combination of lighting means (4) and second reflector base (2) vertically and / or horizontally on the inner surface (62) of the at least one side wall (61) of the cover (6); or b) the at least one first reflector base (1) or both first reflector bases (1). Electric lamp (98) according to one of claims 11 or 12, characterized in that a) the at least one first reflector base (1) or both first reflector bases (1) with a housing (18) are connected, and the housing (18) by means of the adjusting device (8) relative to the cover (6) arranged thereon at least a composite of illuminant (4) and second reflector base (2) is displaceable; and b) the adjusting device (8) with an on the cover (6) mounted actuating element (80) and associated threaded pin (81) can be activated, which engages in a nut (82) fixed to the housing (18) . Electric lamp (98) according to any one of claims 1 to 13, characterized in that the first reflector surface (R1 ) opposite at least two second reflector bases (2) are arranged at a defined distance from each other. Electric lamp (98) according to one of claims 1 to 14, characterized in that a) for forming the lamp (98) as an add-on spotlight for the power tap and for docking to a bus bar on the top wall (60) an adapter (7) is provided; b) for secure mounting of the lamp (98) on the power rail spaced (to the adapter 7) on the top wall (60) includes a second suspension (76) is fixed, which engages in the docked state to the bus bar, and (by means of a locking 77) the positive engagement can be locked; and c) in the housing (18) electrical components, such as ballasts (78), are installed and it has side parts (180) which close the open sides of the at least one first reflector base (1) .

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