EP2020561B1 - Luminaire - Google Patents

Abstract

The lamp (3), and especially a LED system (11), is contained within an opening (5) at a function surface (4) of a column unit. The LED system has a given light emission direction and the function surface is set at the required angled at the column. The LEDs have optical focusing and their angle is set in relation to the opening by a universal joint (12,13).

Description

The invention relates to a luminaire, in particular a floor, wall or pole luminaire with a base mounting unit and a column unit carrying at least in the region of its free end lamp unit having at least one at least substantially planar functional surface (4) in the at least one recess (5) is provided for receiving a lighting system. Furthermore, the invention is directed to a floor lamp.

Such a lamp from the DE 20 2006 017 356 U1 known.

In this known lamp is a table lamp with a respect to the vertical inclined sheet metal housing whose lower portion is angled to form a stand and whose upper portion is inclined relative to the vertical and formed to receive a light source. The housing area between base and lamp receptacle is designed as a cooling housing and contains a corresponding cooling module, which serves to dissipate the heat generated in the lamp area. The lighting device connected to a heat dissipation plate of the cooling module is fixedly arranged and chin designed as a light emitting diode or the like, which emits light through a window provided in the housing.

Other known luminaires of this type generally comprise a pillar which has a lamp head opposite its attachment end, which is connected to the end of the column and optionally extends inclined to the axis of the column.

From the DE 299 19 055 U1 is known an indirect and direct radiating floor lamp having two fixedly connected to a bottom plate, mutually spaced vertical columns which carry at its free end a lamp for generating indirect light and between those in the region between the bottom side support plate and the indirect light generating Light mounted pivotally mounted direct light lamps are provided which are mounted both relative to the vertical columns and relative to each other pivotable.

The object of the invention is to design a lamp of the type specified in such a way that using simple and thus economically manufactured components a suitable for the fulfillment of different lighting tasks and correspondingly adaptable structure is created, which simultaneously meets high requirements in aesthetic terms ,

This object is achieved essentially by the fact that the column unit consists of an obtuse-angled profile part, the open side is closed by a detachable, flat functional surface, and that the light-emitting direction of the lamp both by the inclination of the functional surface with respect to the base mounting unit as well is determined by the adjustable light emission direction of the lighting system.

The use of a lighting system with optical focusing, in particular an LED lighting system with optical focusing, it is possible to form the column unit as a flat column, wherein the at least one large-area light exit opening having functional surface dominates the appearance. For the completion of the flat column, this functional surface is preferably combined with an obtuse-angled profile part whose open side is closed by the functional surface so that an interior with comparatively shallow depth is created for receiving the lighting system and associated electrical or electronic functional elements.

It is particularly advantageous if the functional surface extends virtually over the entire length of the column unit, because in this way, in contrast to conventional luminaires, the functional surface can be equipped with individual luminous systems as a function of the respective requirements, i. Depending on the respective lighting task, for example, it can be equipped with lighting systems in the region of the free end and at the same time in the area close to the floor, so that a large-area illumination can also be combined with accent lighting without the basic concept of the luminaire having to be modified or modified for this purpose ,

The predefinable inclination of the column unit with respect to the associated fastening unit not only leads to a characteristic appearance of the lamp, but mainly contributes to the prevention of unwanted light pollution, since a light emission takes place only targeted to each area to be illuminated. The inclination of the column unit also serves to specify a part of the light emission direction formed together with the lighting system, in particular LED lighting system. This allows for always unidirectional Light emission in particular optimal illumination close to the light with high light intensity and, if desired, at the same time an illumination of a more distant, located on the same side of the lamp area with reduced illuminance when lighting systems are positioned at different heights. This targeted illumination of desired areas is always associated with the aforementioned avoidance of disturbing light pollution, ie an undesirable brightening of non-illuminated ambient areas of the lamp or the night sky.

Preferably, each LED lighting system consists of at least one group of LEDs with individual or joint optical focusing, each group being arranged on a carrier element which is rotatably mounted and whose inclination to the axis of the recess provided in the functional surface can be predetermined. As a rule, four groups of several LEDs, for example, are combined to form a lighting system, with the individual groups being individually adjustable or adjustable.

The LED lighting system is designed as a replaceable unit and can be used in a preferably circular, closable by means of a cover glass recess in the functional area. At a distance from the cover glass, a cover disk arranged parallel to the cover glass is provided in the structural unit, which has recesses corresponding to the number of LED groups, so that in the front view behind the cover glass only the cover disk and the LED groups are visible.

The diameter of the recess in the functional surface is preferably chosen so that the area between the side legs of the carrier profile fully utilized and thus a large-area light exit surface is obtained. Several such light exit surfaces can be provided one above the other and possibly also next to one another in the functional area.

The planar functional surface is preferably formed by rectangular subunits which can be screwed to the rear profile part and which serve to receive the luminous system combined into a structural unit. Along the total functional area, these subunits can be positioned adjacent to one another or at a mutual distance as a function of the respective illumination task.

According to a further preferred embodiment of the invention, a floor lamp is realized in that in a retractable in the bottom housing, which is designed cup-shaped, at least one unit of the type described with multiple directable LED lighting systems used and this arrangement by a stable, translucent plate and a this plate-holding and also the assembly with respect to the housing fixing cover plate is closed. The housing preferably has a peripheral flange, which is designed in cross-section so that the cover plate is located flush with its free edge.
In this embodiment, it is particularly advantageous that the mounting unit used in the already described embodiments and carrying the light sources can be used practically unchanged.

Fig. 1

eine perspektivische Längsschnittdarstellung einer Ausführungsform einer Leuchte nach der Erfindung,

Fig. 2

eine Schnittansicht der Leuchte nach Fig. 1 zur Erläuterung des Grundaufbaus,

Fig. 3

eine perspektivische Schnittsdarstellung einer Ausführungsform einer einen Bestandteil der Funktionsfläche bildenden Teileinheit,

Fig. 4

eine Darstellung einer bevorzugten Lagerung der LED-Gruppen des Leuchtsystems, und

Fig. 5

eine Schnittdarstellung einer weiteren Ausführungsform der Erfindung in Form einer Bodenleuchte.

Embodiments of the invention are explained below with reference to the drawing; in the drawing shows:

Fig. 1

a perspective longitudinal sectional view of an embodiment of a lamp according to the invention,

Fig. 2

a sectional view of the light after Fig. 1 to explain the basic structure,

Fig. 3

3 is a perspective sectional view of an embodiment of a part of the functional surface forming subunit,

Fig. 4

a representation of a preferred storage of the LED groups of the lighting system, and

Fig. 5

a sectional view of another embodiment of the invention in the form of a floor lamp.

Fig. 1 shows in the form of a perspective longitudinal sectional view of an embodiment of the invention as a specially designed pathway light. It comprises a basic fastening unit 1 designed in the form of a plate in this example and a column unit 2 extending relative to this base fastening unit 1 with a predefinable inclination.

The column unit 2 consists of an obtuse-angled profile part 7, in particular of aluminum, whose open side is closed by a flat functional surface 4. Distributed over the length or height of the column unit 2, a plurality of LED lighting systems 3 are provided in the functional area 4. These LED lighting systems can be assigned to circular recesses 5, which can be provided directly in a continuous functional surface 4, but preferably the functional surface 4 is formed in the region of each LED lighting system 3 by a rectangular, screwed to the rear profile part 7 subunit 14, which in each case serves to receive an LED lighting system combined into a structural unit. Along the total functional area these can Subunits 14 are arranged adjacent to each other or at a mutual distance as a function of the respective lighting task.

Each LED lighting system 3 is preferably designed as a replaceable structural unit, wherein the respective lighting system 3 associated recess 5 is closed in the functional area by a cover glass 8.

Each LED lighting system 3 preferably comprises a plurality of LED groups 11 with optical focusing, which are strained.

A located in the bottom region of the column unit 2 receiving space 6 is used to accommodate ballasts and other possibly required electrical components.

It is from the Fig. 1 It can be seen that the column unit 2 is inclined with respect to the base fixing unit 1, and the degree of inclination can be selected depending on the purpose of use of the lamp. Due to the recessed with respect to the functional surface arrangement of the bulbs, the specification of the emission of the lamps and also by the inclination of the column unit 2 with respect to the base mounting unit 1 targeted illumination of each desired areas is obtained while ensuring that a light pollution, ie not one desired and only adversely effecting lightening of surrounding areas is avoided.

The sectional view after Fig. 2 shows the specific configuration of the obtuse-angled profile part 7 with the side legs 9, the free end portions are designed for Schraubfixierung the functional surface 4. Each associated with a recess 5 in the functional surface 4 LED lighting system 3 represents a structural unit and each includes a plurality of LED groups 11 with optical focusing. These LED groups 11 are individually supported and adjustable with regard to their emission direction, for which purpose each LED group 11 is arranged on a support limb 12 of an angle part, whose rotary leg 13 is fastened to an insert shell part 23.

At a distance from the cover glass 8, a cover plate 18 is fixed in the insert shell part 23, which has a number of openings 19 corresponding to the number of LED groups.

Again Fig. 2 can be removed, the LED groups 11 can partially pass through the openings 19, ie in the region of these openings 19, the LED groups are adjustable in their inclination and also rotatable.

The connection of the LED units via a connection terminal 15 which is fixed in the rear region of the insert shell part 23.

The adjustability of the emission direction of the individual LED groups 11, in conjunction with the predefinable inclination of the column unit 2, creates the prerequisite for optimal illumination of the respective desired area located in front of the functional area 4.

Fig. 3 shows a sectioned, perspective detail view of a subunit 14 of the functional surface 4, in which an LED lighting system 3 is integrated. This subunit 14 represents an assembly that can be used as a standard assembly and positioned in the respective desired position in the functional surface by screwing with the profile part 7.

Like from the Fig. 1 can be seen, each of these subunits 14 forms part of the functional surface 4, wherein individual subunits 14 can be arranged directly adjacent to each other or with mutual distance from each other. Intermediate areas between subunits 14 are closed by means of correspondingly adapted cover surfaces.

Fig. 4 shows a schematic representation of a possible rotation-pivot bearing of the LED groups 11, which is characterized by particular simplicity.

Each LED group 11 is assigned to a carrier angle element whose carrier leg 12 and rotating leg 13 in their outline shape preferably correspond to the cross-sectional shape of the LED group 11. The LED group 11 is mounted on the support leg 12, and this support leg 12 is connected via an articulated joint 22 with the rotary leg 13, wherein the support leg 12, rotary leg 13 and articulated joint 12 preferably consist of a stamped part. The angle between the carrier leg 12 and rotary leg is adjustable via the articulated joint 12 in a predeterminable manner.

The disk-shaped rotary leg 13 is rotatably mounted centrally, via a base plate 20 having a lug which engages in a rotation limiting slot 21 in the rotary leg 13.

The type of storage of the rotary leg 13 on the insert shell part 23 is the Fig. 2 it can also be seen that the base disk 20 is secured against rotation with respect to the insert shell part 23 via a punching tab 10.

By appropriate design of the base mounting unit and the choice of the longitudinal extent of the functional surface, the lamp according to the invention can be used not only as a path light or as a comparatively high pole light, but also as a wall light, wherein the holder can be designed so that the light units having functional surface with respect the respective wall extends at a predeterminable angle and the main emission direction of the light can be predetermined in a simple manner by orientation of the functional surface.

By combining an extruded profile with a substantially flat functional surface can be realized with little effort lamps of very different lengths at relatively low cost.

Fig. 5 shows a further advantageous embodiment of the invention in the form of a floor lamp.

It is of particular advantage that the in Fig. 2 shown unit 16 used in virtually unchanged form and can be created by integration of this unit in a retractable floor 24 housing 25 floor lights that comprise one or more of these units 16.

The housing 25 is designed in its depth so that below the respective assembly 16 sufficient space for receiving the electrical or electronic functional components, in particular the ballasts 26 is available. On the opening side, the housing 25 has a stable circumferential flange 28, which is designed for the positive or flush receiving a stable cover plate. Of the Circumferential flange 29 of the assembly 16 is clamped with the interposition of suitable sealing elements between the cover plate 22 and the horizontally extending portion of the housing flange 28.

As already described in connection with the previous embodiments, the LED groups 11 contained in the assembly 16 are rotatably and pivotally mounted, so that in each case in connection with this floor lamp the respectively desired and optimal radiation characteristics can be adjusted.

The rotation and pivotal mounting of the bulbs contributes in all embodiments, in particular in the embodiments with several on the height of the lamp selectively distributed lighting systems 3 in that, for example, located in front of the luminaire bottom-side area can be illuminated effectively and with high luminance, while the light systems 3 located in the upper region of the luminaire can be selected or set with regard to their emission characteristics in such a way that the respectively desired illumination of a larger spatial region with a lower luminance can be ensured.

LIST OF REFERENCE NUMBERS

1

Base attachment unit

2

column unit

3

LED lighting system

4

functional surface

5

recess

6

accommodation space

7

profile part

8th

cover glass

9

side leg

10

Stanzl ash

11

LED group with optical focus

12

support legs

13

torsion

14

Subunit of the functional area

15

terminal

16

unit

17

axis of rotation

18

cover disc

19

Opening in cover disk

20

base disc

21

limiting slot

22

articulated

23

Tray insert part

24

ground

25

casing

26

ballast

27

cover

28

flange

29

circumferential flange

Claims (18)

1. A luminaire, in particular a standing lamp, a wall lamp or a pole-mounted lamp, having a base mounting unit and a column unit (2) which carries lighting means at least in the region of its free end and which has at lease one planar functional surface (4) in which at least one cut-out (5) is provided for the reception of a lighting system (3),
   characterized in that
   the column unit (2) comprises an obtuse angle section (7) whose open side is closed by a couplable, planar functional surface (4); in that the column unit is inclined with respect to the base mounting unit; in that the light radiation direction of the lighting system can be set; and in that the light radiation direction of the luminaire is determined both by the inclination of the functional surface (4) with respect to the base mounting unit (1) and by the adjustable light radiation direction of the lighting system (3).
2. A luminaire in accordance with claim 1, characterized in that the functional surface (4) extends at least substantially over the total length of the column unit and is suitable for the reception of LED lighting systems (3).
3. A luminaire in accordance with claim 1 or claim 2, characterized in that an LED lighting system is provided as the lighting system (3); and in that each LED lighting system (3) comprises at least one group of LEDs with individual optical focusing which is arranged on a carrier element whose inclination toward the axis of the cut-out (5) provided in the functional surface (4) is presettable.
4. A luminaire in accordance with claim 1 or claim 2, characterized in that an LED lighting system is provided as the lighting system (3); and in that each LED lighting system (3) comprises at least one group of LEDs with common optical focusing which is arranged on a carrier element whose inclination toward the axis of the cut-out (5) provided in the functional surface (4) is presettable.
5. A luminaire in accordance with any one of the preceding claims, characterized in that each LED lighting system (3) includes a plurality of individual groups of LEDs with optical focusing whose inclination toward the axis of the associated cut-out (5) is individually adjustable.
6. A luminaire in accordance with claim 5, characterized in that a settability of the inclination in different directions by an adjustability of a carrier element (12, 13) intended for the LEDs is provided in the manner of a Cardan joint.
7. A luminaire in accordance with claim 6, characterized in that each carrier element is formed by a limb (12) of a holding member whose other limb (13) is rotatably supported; and in that the angle between both limbs (12, 13) is adjustable.
8. A luminaire in accordance with any one of the preceding claims, characterized in that the lighting system (3), which is in particular equipped with LED units, is made as a replaceable assembly (16).
9. A luminaire in accordance with any one of the preceding claims, characterized in that a circular cut-out (5) is provided in the functional surface (4) for each lighting system (3) and is closable by means of a cover glass (8) held by the functional surface (3).
10. A luminaire in accordance with claim 8 or claim 9, characterized in that a cover panel (18) is mounted spaced apart from the cover glass (8) in the insert shell part (23) in each assembly (16) bounded by an insert shell part (23), said cover panel having an opening (19) for each LED group (11) within which the LED group (11) can be rotated and pivoted.
11. A luminaire in accordance with claim 1, characterized in that the diameter of the cut-out (5) substantially corresponds to the inner spacing of the side limbs (9) of the obtuse angle section (7) of the section (7) preferably made of aluminum.
12. A luminaire in accordance with claim 7, characterized in that the carrier element for the LED groups (11) is made of a stamped part, with the carrier limb (12) being adjustably connected to the rotating limb (13) via a folding joint and the rotating limb in particular having a rotating boundary slot (21).
13. A luminaire in accordance with any one of the preceding claims, characterized in that the planar functional surface (4) is formed at least party by rectangular part units (14) which can be screwed to the obtuse angle section (7) and into which an assembly (16) including the lighting system (3) is respectively integrated.
14. A luminaire in accordance with claim 13, characterized in that each part unit (14) forms a closed system, in particular a sealed system, with the associated assembly (16) and can be integrated in the column unit in a sealed manner.
15. A luminaire in accordance with any one of the preceding claims, characterized in that the region of the column unit (2) at the mounting side forms a receiving space (6) for functional elements.
16. A luminaire in accordance with any one of the preceding claims, characterized in that the mounting unit (1) is made of a floor mount or wall mount, in particular of plate shape.
17. A luminaire, in particular in accordance with any one of the preceding claims, characterized in that at least one assembly (16) having a plurality of LED groups (11) with optical focusing is attached in a housing (25) which can be sunk flush in the floor (24); and in that each assembly (16) is fixed by clamping between an angled flange (28) of the housing (25) and a cover plate (27) inserted flush into the angled flange (28).
18. A luminaire in accordance with claim 17, characterized in that the electrical or electronic components, in particular ballast (26), are arranged beneath the assemblies (16) in the housing (25).

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