DE102006018255A1 - Light e.g. interior light, has light guiding chambers provided on sides of centrically carrier hollow section, and cover-sided light distribution airfoils swivelably and/or detachably supported at carrier hollow section - Google Patents

Abstract

The light has light guiding chambers (6, 7) provided on sides of a centrically carrier hollow section (1) and laterally to fluorescent lamps (2, 3). The chambers are closed by a space-sided light exit surface. Cover-sided light distribution airfoils (8) are swivelably and/or detachably supported at the carrier hollow section, where shape, size, position and/or inclination of the airfoils are selectable relative to a vertical centre plane of the carrier hollow section depending on the respective distance of a light to a cover (12).

Description

The The invention relates to a luminaire according to the preamble of the claim 1.

at a luminaire of this type are known constructions, especially as a hanging lamp are previously known. Essential feature of this luminaire is that they on one side of her case a first light-emitting area for direct illumination of the room and a second light-emitting region, which for indirect Illumination of the room serves and at the first light-emitting area opposite back the lamp is arranged. It is the purpose of the light-transmissive light influencing element having second light-emitting area, the side and / or back To lighten the surroundings of the luminaire to the light intensity difference between the reduce the first light emission area and the surroundings of the luminaire and / or additionally for direct lighting an indirect lighting in particular at the back to bring about the lamp, what improves the room lighting and brightness differences in the rear and lateral area of the lamp diminished.

at the translucent Light influencing element of the second light-emitting area, it may be, for. B. to act an element that is translucent or partial translucent and through a translucent Washer or a perforated plate is formed, the z. B. in the field of rear wall of the housing the lamp is arranged.

Of the Invention is the object of a luminaire of the beginning specified type to improve the indirect lighting. It should in particular the for the Indirect light radiated light can be better utilized, preferably for the lateral edge areas of the luminaire.

These The object is solved by the features of claim 1. advantageous Further developments of the invention are described in the appended subclaims.

Of the The invention is based on the finding that an indirect lighting especially significant in the lateral edge area of the luminaire is, since a lack of indirect lighting essentially to brightness differences, especially in the edge region of the lamp leads.

at the luminaire according to the invention the second light-influencing element is in at least two different ones Adjustable positions. This makes it possible, the second light influencing element to targeted influencing or also a non - influencing of the Light to adapt to the indirect lighting. The second light influencing element can be adjusted so that it limits the opening for the light Indirect lighting can serve, depending on the position of a smaller or larger opening too limit, or the opening Completely release.

Especially when the second light influencing element is a reflector, that can be indirect light at the side for increased illumination of the side edge area reflect and deflect the luminaire.

The inventive design is suitable for all such lights whose side edge is transverse to the emission side the lamp directed distance from its carrier, in particular a ceiling. Therefore, the invention is excellent for a suspension lamp. The invention is also suitable for a surface-mounted luminaire, in particular then, if the back wall the lamp is inclined to the side edge.

The The object is also achieved by the features of independent claim 20. at this embodiment of the invention is the housing a Flat Pack, wherein the second radiation areas are arranged on the rear side of the flat housing are and the quick connections in the area of the inner edges of the second radiation areas are arranged. This embodiment of the invention leads to a lamp in flat construction, in which the indirect lighting difficult because of the low construction height. The embodiments of the invention enable However, even with such a luminaire construction the desired Improvement of indirect lighting, especially in each other opposite Side edge areas of the luminaire. Also, this can be Light the second light influencing elements handling friendly assemble and disassemble and thus the luminaire optionally to a Adjust indirect lighting.

In the dependent claims Features are included that are simple, small and inexpensive to produce Allow constructions and especially for an elongated one Luminaire are suitable.

following Advantageous embodiments of the invention are based on preferred embodiments and drawings closer explained. It shows:

1 a luminaire according to the invention in vertical cross-section;

2 the upper and middle portion of the lamp in an enlarged view;

3 the subarea in a special functional position;

4 the lamp in a perspective side view from above.

The main parts of in their entirety with 1 designated light are a housing 2 , on its radiant side, namely on its room to be illuminated 3 facing side, a first light-emitting area 4 has, in the present embodiment of the lamp 1 essentially over the entire space 3 facing side of the housing 2 extends and preferably extends in an abstraction level E1.

The housing 2 encloses with its radiating side translucent bottom wall 2a , opposite side walls 2 B and one of the first radiation area 4 opposite rear wall 2c a housing interior 5 in which at least one connection means 6 for at least one lamp 7 arranged and z. B. is attached to a housing inner wall which is connected by electrical leads, not shown, with an electrical power supply. The lamp 7 can z. B. be a so-called fluorescent lamp, to the power supply a control gear 8th heard that z. B. also between the bottom wall 2a and the back wall 2c in the interior 5 can be arranged.

In preferably about the entire radiating side of the housing 2 extending radiating area 4 is a first light influencing element 9 arranged, which is the bottom wall 2a forms, is preferably flat and is in particular glare-free, so that the maximum size of one of the perpendicular to the emission E1 extending main emission direction deviating lateral beam angle W1 is limited to an angular extent, with respect to a in the illuminated space 3 standing and obliquely upward looking person gives a sufficient glare. This can be achieved by a per se known Entblendungsstruktur, the first light influencing element 9 is arranged outside or inside or between two superimposed and the first light influencing element 9 forming discs is arranged. In this case, the anti-dazzle structure may be formed on the associated side of the relevant light influencing element or the disk or on a transparent film, which may be arranged inside or outside or between the aforementioned disk-shaped elements.

The lamp 1 has a quadrangular shape in the viewing direction at right angles to the first emission area, wherein it is preferably elongated transversely to the plane of the drawing sheet, as it is 4 shows. It can be a single luminaire or a luminaire 1 , which at their longitudinal ends for a series of several lights 1 is formed to a line of light.

The lamp 1 is preferably a so-called flat lamp, that is, it is in flat design of the housing 2 designed, wherein the width b extending transversely to the longitudinal direction is in a relation to the height h1, which is about 4: 1 to 8: 1, in particular about 3: 1.

Especially with a lamp 1 elongated construction can on both sides of their vertical center plane or longitudinal center plane E2 connecting means 6 for two lamps 7 be provided, for. B. in one end region or in both end regions in each case two sockets for two lamps 7 , preferably in the form of straight tubes, in particular fluorescent tubes.

In the embodiment, the rear wall 2c formed on both sides of the vertical center plane E2 inclined outwardly, so that the height h1 of the housing 2 tapers towards the lateral or longitudinal sides, preferably to the height h2 of a side profile 11 covering the edges of the bottom wall 2a and the back wall 2c connects to each other and a low sidewall 2 B forms.

First of all, a reinforcing profile is arranged centrally with respect to the vertical longitudinal center plane E2 14 described, which has a V-shaped or U-shaped cross-sectional shape and in such a position in the housing 2 integrated is that its bottom bar 14a a vertical distance from the preferably planar or plate-shaped first light influencing element 9 has and its lateral profile legs 14b down to the top of the case 2 extend, z. B. a vertical distance from the top of the housing 2 exhibit. The reinforcement profile 14 is on the top side by a profile cover 15 closed or closed, preferably by a quick-release connection with the free edge regions of the profile legs 14b is releasably connected, for. B. by clipping on. For this purpose is between the edge regions of the profile leg 14b and the associated edges of the preferably flat profile cover 15 each a locking connection 16 intended. This can be done by the profile legs 14b towering latching legs 14c be formed with the profile cover 15 downwardly projecting latch legs 15a interacting latching. The operating device 8th is preferably in the cavity 17 of the reinforcement profile 14 arranged.

The reinforcement profile 14 preferably extends over the extending transversely to the plane of the drawing length of the lamp 1 and can z. B. end end walls of the housing 2 connected or supported by it. To stabilize the case 2 are arranged at longitudinal distances from each other support webs 18 provided at its upper edges with the rear wall 2c are connected and stabilize them. The supporting bars 18 can extend over the entire width of the interior, wherein they are in the central region to the first light influencing element 9 reach down and support this back or inside. On both sides of this support area 18a are in the supporting bars 18 recesses 19 present, respectively, under the respective lateral areas of the supporting bars 18 each a lateral longitudinally continuous interior area 5a create. In the support area 18a the support bars 18 can z. B. under the reinforcing profile 14 one or more, e.g. B. two eccentric, recesses 18c be present, which also longitudinally continuous interior areas 5b form, the z. B. can be used as a cable channel.

On the first radiating area 4 opposite back has the light 1 at least one second light-emitting area 21 for indirect lighting passing through a translucent or part-transparent section in the rear wall 2c is formed and the outside preferably a second light influencing element 22 is associated with that of the second radiation area 21 radiated light can be influenced or changed, in particular laterally deflected.

In the present embodiment, in which on both sides of the vertical center plane E2 two connection elements 6 for or with a lamp 7 are arranged, are two second radiation areas 21 each with a second light influencing element 22 arranged in mirror image with respect to the vertical center axis E2. Therefore, in the following description, the description is limited to a luminaire half, namely the left half of the luminaire.

The second emission area 21 is located in the rear radiation area above the lamp 7 or above the connection means 6 in whose area the associated lamp 7 is positioned. The indirect lighting is favored by the fact that the second radiation area 21 is arranged inclined to the associated side edge. The angle W2, the back wall 2c with the bottom wall 2a is about 20 to 40 °, in particular about 30 °.

In the present embodiment, the second radiation area 21 through a translucent or partial translucent cover wall 23 formed, the one corresponding to their shape opening 24 in the back wall 2c closes, in particular by the fact that the cover 23 in the opening 24 is positionable, taking a section of the rear wall 2c forms. The opening 24 is so big that the lamp 7 movable therethrough and with the one or more connection elements 6 is connectable or removable or interchangeable. The at least one connecting element 6 is designed so that the lamp 7 in its insertion and removal movement with its contact elements with associated mating contact elements of the housing 2 Contactable during insertion and can be brought out of contact during removal. If z. B. the lamp 7 Having terminally projecting contact pins, the contact pins receiving contact slots are arranged on the housing side and directed in the direction of movement, that the contact pins during insertion of the lamp 7 in the slots are inserted and are removable when removed.

The cover wall 23 is through a joint 25 with the housing 2 connected to the cover wall 23 in the region of its one edge, in particular in the region of its edge facing the vertical center plane E2, with the associated edge region of the housing 2 combines. As a result, the cover wall 23 not only between its closed position and the mounting or dismounting of the lamp 7 enabling open position pivotally mounted, but it is also captive on the housing 2 held.

For additional light influencing the cover wall 23 For example, on its inside light guide elements 26 have to influence the transmitted light.

The second emission area 21 is preferably arranged adjacent to the reinforcing profile. The width b1 of the second emission area 21 is about one-third to one-fifth, in particular about a quarter of the dimension b2 of the associated rear wall half.

The joint 25 is preferably mounted by locking his joint parts and disassembled by unlocking, in each case by a transversely directed to the hinge axis assembly or disassembly movement.

The cover wall 23 can z. B. with two edge-side and inwardly directed legs 23a . 23b Be U-shaped, with the associated hinge part in the free edge region of the inner wall leg 23a is arranged. This allows the joint 25 in one in the housing 2 realize in submerged position. The wall thigh 23b stabilized on the outer edge and improves the cover wall 23 in the closed position, z. B. by means of a nose 27 in the recessed closed position according to 2 and 3 right detent or clamping with the opposite edge of the opening 24 interacts.

The joint parts can be replaced by an undercut gutter with two claw-shaped gutter legs 25c be formed between which a z. B. in cross-section cylindrical pivot pin 25b can be latched and disengaged by elastic bending out of the gutter legs.

In the context of the invention, the joint 25 be formed by a plug / rotary socket without locking, with a socket channel to the free edge of the cover 23 is open and pivoting the cover wall 23 allows in the inserted position, without the cover wall side plug-in part of the cover 23 locked in it. The securing of the cover wall 23 in such a socket channel takes place in the closed position of the cover wall 23 automatically by the fact that the cover wall 23 through the edge of the opening opposite the socket channel 24 is limited in the socket channel.

The second light influencing element 22 is formed by a thin wall part, which by a quick connection 31 in the area of the back wall 2c detachable with the housing 2 connected is. In the embodiment, there is the quick connection 31 in the area of the joint 25 or the jack, z. B. partly in the outer surface of the rear wall 2c sunk and / or offset inwardly by the offset v.

The second light influencing element 22 is adjustable in at least two different positions, the quick-release connection 31 this allows. These two positions are labeled S1 and S2. In the position S1 is the second light influencing element 22 across the back wall 2c from, namely with a ceiling light upwards. In position S2 ( 3 ) is the second light influencing element 22 in one against the back wall 2c moved position, preferably on the cover wall 23 abuts and the cover 23 or the opening 24 completely or partially or almost covering. In the embodiment, the width b3 of the light influencing element 22 so large that its free edge at a distance c in front of the outer edge of the second light-emitting area 21 or the opening 24 ends. The distance c is z. B. about ¼ of b1.

The in the position S1 directed to the associated side wall surface 22a is preferably curved about a parallel to the center plane E2 extending axis of curvature, preferably cylindrical section curved or rounded.

It is the purpose of the second light influencing element 22 that of the second radiation area 21 emitted light, in particular the in the center plane E2 facing region of the second emission area 21 radiated light to influence and thereby change the indirect lighting. For this purpose, the second light influencing element 22 be at least partially translucent or a reflector 32 form that of the second radiating area 21 light emitted to it is reflected toward the side facing away from the center plane E2. The reflector 32 can z. B. be formed by the second radiation area 21 facing wall surface 23a is a reflection surface. In the position shown, the second light-influencing element closes 22 with the center plane E2 an acute angle W2, which may be less than about 40 °.

In the position S2, the second light-influencing element is used 22 to that, the opening 24 completely or partially or almost completely cover and thereby at least partially shading the light. When doing the second light influencing element 22 as a reflector 32 is formed, the light is reflected in the covered area, so that in this area as good as no light losses. This second position S2 is used for. B. to avoid the indirect lighting or reduce.

The second light influencing element 22 is preferably adjustable in a third position S3, in which it is inwards and against the housing 2 moved, it is at the top of the case 2 can be located and on the back wall 2c or on the profile lid 15 can rest. In this position S3 is the second light influencing element 22 in a non-use position, the z. B. may be a packaging or transport position. If both light influencing elements 22 are present, they may overlap and lie on top of each other as it is 1 and 2 demonstrate.

To the assembly and / or adjustment of the second light influencing element 22 To facilitate and handle easy to handle, it is advantageous to the quick-connect 31 as a joint 33 in such a way that the second light-influencing element 22 is pivotable between its positions S1 and S2.

When the light influencing element 22 Moreover, in optional pivoting positions can be determined, for. B. by stiffness in the quick connection, can be realized either swivel positions and light influencing positions.

Another possibility, the second light influencing element 22 from the position S2 to the position S3 or vice versa, is the light influencing element 22 to solve and about 180 ° to rotate parallel to the rear wall or on the rear wall imaginary plane and in the quick-connect 31 to connect again.

For reasons of simplicity and ease of assembly and disassembly, it is therefore advantageous to use the quick-release connection 31 by a clamping or latching connector, z. B. to realize a locking connection or a plug / pivot connection, as shown in the embodiments.

The locking connection is by a locking pin 31a Preferably rounded cross-section and two elastically latched on him locking claws 31b educated. In the embodiment, the locking pin 31a on the reinforcement profile 14 , preferably on its lid 15 , arranged and the pawls 31b are at the associated edge of the light influencing element 22 arranged. The locking takes place in that the locking claws 31b elastically rebound when plugged in and when plugged in the locking pin 31a to take something behind, whereby they automatically deflect themselves. The locking pin 31a is through a small connecting bridge 31c firmly connected to its carrier. The directed in the circumferential direction distance between the locking claws 31b is considering the small width of the connecting web 31c so big that the light influencing element 22 between the position S1 and the position S3 is pivotable.

To the light influencing element 22 between its positions S1 and S3, it requires the above-described rotation through 180 °, wherein the light influencing element 22 to loosen, turn and lock again.

The arrangement is preferably made such that in the reflective position S1 the light influencing element 22 against pivoting to the cover 23 made difficult or limited, namely by a stop position between the associated connection claw 31b and the connecting bridge 31c ,

In the embodiment, the wall of the light influencing element 22 of two wall sections enclosing an obtuse angle W3, their vertices 22a approximately over the inner edge of the second light-emitting area 21 located.

In the embodiment, there is the locking connection or the integrated joint 33 in the edge or corner area of the lid 15 ,

The joint 25 for the cover wall 23 is in the embodiment between the upper edge region of the associated profile leg 14b and one from the lid 15 obliquely outwardly and upwardly extending legs 15b be formed, at the same time the associated gutter leg 25c forms. This is the joint 25 between the associated profile leg 14b and the lid 15 arranged.

The second light emission area 21 and the cover 23 and the second light influencing element 22 preferably extend over the dimension or length L of the housing extending transversely to the plane of the drawing 2 , This also applies to an elongated design of the lamp 1 according to 4 ,

The second light influencing element 22 and the cover 23 and the associated joint parts, here the locking pin 31a and the pawls 31b as well as the trough legs 25c preferably extend continuously and straight across the drawing sheet plane. These parts can thus be produced inexpensively as profile parts, z. B. by drawing or extruding one long semi-finished and by cutting to length.

In the context of the invention may or may the second light influencing element 22 and / or the cover wall 23 (Perforated plate) and / or the reinforcement profile 14 and / or the lid 15 made of metal or plastic.

Claims (20)

Lamp ( 1 ), in particular suspended luminaire, with - a housing ( 2 ), - on its one side a first light-emitting area ( 4 ) with a first light influencing element ( 9 ) - and on another side for a direct illumination a second light-emitting area ( 21 ) with a second light influencing element ( 22 ), characterized in that the second light influencing element ( 22 ) is adjustable in at least two different positions (S1, S2, S3). Luminaire according to claim 1, characterized in that the second light influencing element ( 22 ) is detachably and preferably arranged interchangeable. Luminaire according to claim 2, characterized in that the second light influencing element ( 22 ) by a clamping connection or a latching connection with the housing ( 2 ) connected is. Luminaire according to one of the preceding claims, characterized in that the second light influencing element ( 22 ) is translucent or partially translucent. Luminaire according to one of claims 1 to 3, characterized in that the second light influencing element ( 22 ) a reflector ( 32 ). Luminaire according to one of the preceding claims, characterized in that the second light-influencing element ( 22 ) by a joint ( 33 ) pivotable with the housing ( 2 ) connected is. Luminaire according to one of claims 3 to 6, characterized in that joint ( 33 ) is integrated in the latching connection. Luminaire according to one of the preceding claims 3 to 7, characterized in that the latching connection by a latching pin ( 31a ) preferably rounded cross section and two on the locking pin ( 31a ) elastically latchable latching claws ( 31b ) is formed. Luminaire according to one of the preceding claims, characterized in that the second light-emitting area ( 21 ) and the second light influencing element ( 22 ) above a lamp compartment at the back of the housing ( 2 ) are arranged. Luminaire according to claim 9, characterized in that the second light influencing element ( 22 ) with respect to the vertical center plane (E2) of the lamp ( 1 ) is arranged laterally offset and the locking connection or the joint ( 33 ) in the vertical center plane (E2) facing edge region of the second light-emitting region ( 21 ) is arranged. Luminaire according to one of the preceding claims, characterized in that the second light-influencing element ( 22 ) approximately parallel to the first light-emitting area ( 4 ) can be mounted in two rotated by 180 ° positions. Luminaire according to one of the preceding claims 5 to 11, characterized in that the second light-influencing element between a reflector position (S1) and a second light-emitting area ( 21 ) partially or completely covering covering position (S3) and the second light-emitting area releasing release position (S3) is adjustable. Luminaire according to claim 12, characterized in that the second light influencing element ( 22 ) between the reflector position (S1) and the release position (S3) is pivotable and / or between the reflector position (S1) and the covering position (S3) approximately parallel to the first light-emitting in two rotated by 180 ° positions mountable, in particular latched, is , Luminaire according to one of the preceding claims, characterized in that the second radiation area ( 21 ) and the second light influencing element ( 22 ) along the axis of the locking connection or the joint ( 33 ) over the entire associated dimension (L) of the housing ( 2 ). Luminaire according to one of the preceding claims 2 to 13, characterized in that the rear wall ( 2c ) at least in the region in which the second light-influencing element ( 22 ) is arranged to the nearest lateral edge of the housing ( 2 ) is inclined. Luminaire according to one of the preceding claims, characterized in that with respect to a vertical center plane (E2) of the luminaire ( 1 ) on both sides a second light-emitting area ( 21 ) and a second light influencing element ( 22 ) are arranged. Luminaire according to one of the preceding claims, characterized in that the luminaire ( 1 ) is designed as a flat lamp. Luminaire according to one of the preceding claims, characterized in that the second light-emitting area ( 21 ) through a translucent section of the rear wall ( 2c ) of the housing ( 2 ) or by a translucent cover element ( 23 ) formed in a radiation opening ( 24 ) of the back wall ( 2c ) can be used. Luminaire according to claim 18, characterized that cover element detachable is, preferably by a latching connection or a joint with the rear wall is connected and between its closed position and an open position for one Assembly or disassembly of the lamp is adjustable. Lamp ( 1 ), in particular suspended luminaire, with - a housing ( 2 ), - on its one side a first light-emitting area ( 4 ) with a first light influencing element ( 9 ) - and for indirect illumination on both sides of a vertical center plane (E2) two second light-emitting area ( 21 ) each having a second light influencing element ( 22 ), wherein the light influencing elements ( 22 ) by high-speed connections ( 31 ) with the housing ( 2 ) are detachably connected, characterized in that the housing ( 2 ) is a flat housing, the second radiation areas ( 4 ) are arranged on the back of the flat housing and that the Quick connection connections ( 31 ) in the region of the inner edges of the second radiation areas ( 4 ) are arranged.