EP1646824A1

EP1646824A1 - Built-in illuminator

Info

Publication number: EP1646824A1
Application number: EP04820949A
Authority: EP
Inventors: Hartmut S. Engel
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-23
Filing date: 2004-11-26
Publication date: 2006-04-19
Anticipated expiration: 2024-11-26
Also published as: DE10360946A1; EP1646824B1; CN100455881C; WO2005066539A8; CN1751206A; AU2004312575B2; DE502004005444D1; ATE377731T1; NZ547644A; NZ547869A; PL1646824T3; AU2004312575A1; WO2005066539A1

Abstract

The invention relates to a built-in illuminator comprising a mounting for fastening it in a mounting surface (11), especially a ceiling, an illumination means socket and a reflector. The illuminator is characterized in that the reflector is comprised of at least one first reflector area (15), followed by a second reflector area (16) in the direction of illumination. Said second reflector area can be detached from the first reflector area (15) to facilitate replacement of the illumination means.

Description

recessed light

The invention relates to a recessed light with a holder for mounting in a mounting surface, in particular a ceiling, a bulb holder and a reflector.

Such recessed lights are known from the prior art in various forms and are offered for example as down-lights or up-lights. These recessed luminaires often have light-emitting sockets, r whose longitudinal axes extend perpendicular or oblique to the illumination direction or substantially parallel to the installation surface. In particular when compact fluorescent lamps are used, the mentioned orientation of the light-emitting means holder is chosen as this orientation allows a low installation depth of the lamps.

However, the orientation of the illuminant mount vertically or obliquely to the illumination direction disadvantageously means that the insertion of the illuminant into the illuminant mount is difficult due to confined space conditions and that the illuminant can not be optimally positioned relative to the reflector, since at an optimal position of the reflector Inserting the bulb in the way would be.

This is remedied according to known from the prior art recessed lights, for example, by the fact that the bulb holder and a part of the bulb protrude laterally from the reflector and that in many cases in the reflector on the side opposite the bulb socket an opening is provided in the Lamp can be introduced with its side facing away from the socket, then to allow insertion of the lamp in the opposite bulb holder. A disadvantage of this embodiment is the fact that in the reflector usually an opening must be provided vorge- what is associated with effort, the effective Re reflector surface reduces and also disadvantageously light through the aperture against the desired direction of illumination leak.

An object of the invention is to provide a recessed luminaire of the type mentioned in a simple way so that even with low depth replacement of bulbs can be easily and conveniently carried out when the longitudinal axis of the bulb socket obliquely or perpendicular to the direction of illumination runs, at the same time an optimal positioning of the bulb socket is to be made possible relative to the reflector.

This object is achieved in accordance with the invention in that the reflector consists of at least a first reflector region, followed by a second reflector region in the direction of illumination, which is detachable from the first reflector region in order to enable a light source exchange.

The inventive division of the reflector into at least a first and a second reflector region and the solubility of the second reflector region located in the illumination direction from the first reflector region makes it possible to arrange the luminous means holder and the luminous means in front of the first reflector region. Accordingly, at least parts of the second reflector region can be arranged in front of the luminous means, so that the luminous means to a certain extent located between the first and second reflector area. Due to the detachability of the second reflector region from the first reflector region, the light source held in the light bulb holder is then freely accessible and can be detected by a person without hindrance by the second reflector region and detached from the light bulb socket. Likewise, when the second reflector region is removed, a luminous means can be inserted into the luminous means holder without difficulty and without obstruction by the second reflector region. Finally, according to the invention, therefore, that reflector region which was obstructive in the case of replacement of the illuminant in the case of recessed luminaires known from the prior art is simply detached from the recessed luminaire or from the remaining reflector region for the purpose of replacement, which creates sufficient space to insert a luminous means into the luminous means holder or to detach a bulb from the bulb socket. Since, according to the invention, therefore, a comparatively large working or access space for changing a lighting means is available through the removed second reflector region, this process can be carried out without problems, for example, without damaging or contaminating reflector regions.

The inventive design of a recessed light also allows an optimal relative position between the light source and all reflector areas.

It is preferred if the second reflector region is either pivotable away from the first reflector region or completely detachable. When the second reflector region is merely pivoted away from the first reflector region, it is advantageous that the second reflector region does not have to be handled as a separate part when replacing a luminous means, since the second reflector region due to its articulated Connection with the recessed light is always held on this. With a complete solubility of the second reflector region of the recessed luminaire, however, has the advantage that it can be realized with little economic effort.

Illuminant holder and first reflector region can preferably be arranged in a housing, on which the second reflector region is articulated and / or fastened by means of a releasable screw, magnetic, clip, latching or bayonet connection.

With regard to the housing, it is advantageous if this is made light-tight, since in this case, for example, in suspended ceilings inaccuracies in the processing are not inadvertently illuminated from behind. Furthermore, the housing can be executed dust-tight, so as to counteract a pollution, for example caused by air conditioning lamps and reflectors.

The second reflector region may have a reflector opening located in the illumination direction, which in one possible embodiment is terminated by a translucent or transparent pane at least substantially dust-tight. In this way, a frequent cleaning of the reflector areas and the light source can be avoided, since said disc forms a reliable protection against dust. A particularly good protection against dust can be achieved if not only the reflector opening is closed by means of a disk, but if the entire housing is at least substantially dust-tight closed by the second reflector region releasably secured to the housing and / or by firmly connected elements. In this case, entry of dust into any housing or reflector areas can be reliably avoided. The first and the second reflector region can adjoin one another at least in sections. In this case, the two reflector regions can jointly take the form of a uniform reflector, which is closed on its opposite side of the reflector opening. The closed side of the reflector is formed in this case by the first, in particular inextricably connected to the housing reflector region. If the first and second reflector regions adjoin one another not only in sections, but at least almost completely, it is advantageous if one of the two reflector regions has an opening which is open towards the other reflector region, through which the luminous means can protrude laterally into the interior of the reflector. At the same time, this cutout makes it possible to detach the second reflector region from the first reflector region without the luminous means standing in the way of such loosening.

It is particularly preferred if the first reflector region is designed as an additional reflector and the second reflector as a direct light reflector. In this case, between the additional reflector and the direct light reflector, a light passage region can be formed, through which a light component can pass, which is ultimately used to produce a diffuse illumination. The direct light reflector, on the other hand, is directly and directly exposed to a proportion of light which is used to produce direct illumination. In this case, a reflector opening of the direct light reflector located in the illumination direction can define a direct light exit area, which is surrounded at least in regions by a diffuse light exit area. In this case, the diffuser light exit region is preferably exposed to a light component which has previously passed through the light passage region which is formed between the additional reflector and the direct light reflector. The provision of the diffuse light exit region in addition to the direct light exit region makes it possible to work in the direct light exit region after the dark light principle avoiding a glare effect and at the same time ensure that non-glaring scattered light from the diffuse light according to the invention around the direct light exit region is present -Eurittsbereich exits, so that always a visible mark of the light source is guaranteed, which despite the use of the dark light principle leads to a perceived as pleasant lighting mood in the room.

The direct light exit region and the diffuse light exit region can be acted upon by a common illuminant that can be attached in the illuminant mount. In this case, no separate light source has to be provided for the diffuse light exit region according to the invention.

Due to the concrete shape of the additional reflector, a predefinable division of the portion of the reflected light conducted to the direct light exit region and to the diffuse light exit region can be ensured. Thus, by the shape of the additional reflector, the distribution of the light components conducted to the direct light exit region and to the diffuse light exit region can be selected in the respectively desired manner.

A particularly good diffuse light illumination results when the diffuse light exit region is acted upon by an illuminant that can be inserted into the illuminant mount only indirectly via the additional reflector. The additional reflector can be formed by at least one flat reflector surface which extends parallel to the plane of the installation surface. Alternatively, this reflector surface can also be designed in particular rotationally symmetrical curved or kinked. The aforementioned reflector surface can be formed either specularly or diffusely reflecting. It is particularly advantageous if the inner surface of the housing carrying the illuminant mount is formed at least in regions as an additional reflector. When using such a housing, which is open in the direction of illumination, the housing bottom can in particular be formed as a reflector surface, which forms at least one region of the additional reflector. Also, the side walls of such a housing can be designed to be reflective or diffuse reflective and thus act as further regions of the additional reflector. When forming the housing bottom or the housing side walls as additional reflector, it is advantageously achieved that no additional components are required for the additional reflector. It is only necessary to equip the housing on the inside with the respective desired reflection behavior.

It is particularly preferred if the housing carrying the luminous means holder has a substantially cuboid shape and the illuminant means mountable in the illuminant mount has an elongated shape, wherein the longitudinal axis of the illuminant mount extends along a diagonal of the cuboid housing in a plane extending parallel to the mounting surface. Since the length of these diagonals is dimensioned larger than the length of the side surfaces of the housing, stands by the said arrangement for the insertion and removal of the illuminant, a comparatively large space available, through which said operations are easier to handle. Further preferred embodiments of the invention are specified in the subclaims.

The invention will be explained below with reference to exemplary embodiments with reference to the drawings. In these show:

1 shows a schematic cross section through a recessed luminaire according to the invention,

2 shows a schematic cross section through a recessed luminaire according to the invention according to a further embodiment, and

A plan view of a recessed luminaire according to the invention according to a third embodiment.

Fig. 1 shows a schematic cross section through a recessed luminaire according to the invention.

The recessed luminaire shown has a substantially cuboid housing 10, which is open in the illumination direction and has a peripheral frame 9 on its open side. The illumination direction facing away from the side of the frame 9 abuts against a mounting surface 11, which is formed for example by the underside of a suspended ceiling element 12.

Within the housing 10, a direct light reflector 4 is mounted, which has a first, circular opening in the illumination direction, which coincides with a direct light exit region 1. The direct light reflector 4 forms the second reflector described above. Torbereich within the meaning of the invention. At its end facing away from the direct light exit region 1, the direct light reflector 4 has a further, likewise essentially circular opening facing the bottom of the housing 10, from which part of the light quantity emitted by a light source 6 opposes the illumination direction from the direct light reflector 4 in FIG Direction of the bottom of the housing 10 can escape. In this case, the direct light reflector 4 has a cut-out 14 in the direction of the bottom of the housing 10 and, in one possible embodiment, a cutout 14 at its end facing away from the direct light exit region 1 in order to make room for the socket of the light-emitting means 6.

The bottom of the housing 10 forms an area of an additional reflector 7. Further areas of the additional reflector 7 are formed by the side walls of the housing 10. The additional reflector 7 forms the above-explained first reflector region in the context of the invention.

At its open, the area to be illuminated facing the housing 10 is completed in a possible embodiment by a disc 13, which has different optical properties in different areas. In the direct light exit region 1, the pane is made completely transparent, so that light coming from the light source 6 can pass unhindered through this area. In the diffuse light exit region 2, on the other hand, the pane 13 is designed as a diffusing screen, which diffuses light impinging on it from the inside of the housing and thus produces diffuse light. The lens area extends up to the outer edge of the frame 9, so that the frame 9 is covered by the scattered light region of the disc 13. Alternatively, the disc 13 in a less expensive variant, as ring openings exhibiting ring element, in particular as a perforated in this case, it is advantageous if the direct exit region is not closed off by means of a disk but is made open.

In FIG. 1, by way of example, three light beams emanating from the light source 6 are shown, which impinge directly on the transparent area of the pane 13 from the light source 6 and, due to the transparency of the pane 13, pass through them unhindered. Another light beam, likewise shown only by way of example in FIG. 1, strikes the light-source 6 on the reflecting inner side of the direct-light reflector 4, from where the light beam is again directed through the transparent region of the pane 13. An additional, again only exemplarily illustrated in Fig. 2 light beam strikes from the light source 6 at an acute angle to the additional reflector 7, from where the light beam is also directed through the transparent portion of the disc 13.

Light beams of the type mentioned, which pass through the transparent area of the pane 13 and thus the direct light exit area 1, provide for the room lighting desired with the recessed luminaire according to the invention.

However, part of the light supplied by the light source 6 also passes into the light passage area formed between direct light reflector 4 and the bottom of the housing 10, so that it can reach the diffuse light exit area 2 by single or multiple reflection. One reaching the diffuse light exit region 2 under multiple reflection

Light beam is also shown in Fig. 1 by way of example. Starting at the light source 6, this light beam strikes the bottom of the housing 10 at a less acute angle and is reflected from there to the side wall of the housing 10. Subsequently, a multiple reflection takes place between said side wall of the housing 10 and the mirror-like surface. the outside of the direct light reflector 4 until the light beam ultimately strikes the area of the disc 13 formed as a lens. This lens area ensures that the light beam is converted into diffused light, which emerges from the diffuse light exit area 2 and marks the direct light exit area 1 in the manner already explained, which leads to the mentioned, pleasant lighting mood in the room. The same applies to the two light beams according to FIG. 1, which reach the diffuser light exit region 2 only by reflection at the housing bottom or by reflection at the housing bottom and single reflection at the housing side wall.

The disk 13 is detachable from the housing 10 and from the frame 9 together with the direct light reflector 4 fastened to it. For this purpose, the disc 13 in its edge region, for example, have magnetic elements which cooperate with the example ferromagnetic frame 9. The release of the disc 13 from the frame 9 can then be done simply by a decrease in the same, in which the magnetic forces acting between said magnetic elements and the frame 9 are overcome. Alternatively, the disc 13 can be pivotally held on the frame 9 and in particular fastened or latched by means of a clip connection.

By loosening or pivoting the disc 13 from the frame 9 and the fixedly connected to the disc 13 direct light reflector 4 is moved out of the housing 10. Then then the light source 6, which is no longer between additional reflector 7 and 4 direct light reflector, freely accessible, so that it can be easily replaced. After the replacement operation, the disc 13 is then returned together with the direct light reflector 4 to the housing 10 zoomed up and swung and magnetically connected or locked with this.

2 shows a schematic cross section through a further embodiment of a recessed luminaire according to the invention.

The recessed luminaire according to FIG. 2 has a substantially cylindrical housing 10 'which is open in the illumination direction and has on its open side a peripheral, opaque frame 9'. The frame 9 'is in turn on a mounting surface 11', which is formed by the underside of a suspended ceiling element 12 '.

The bottom of the housing 10 'facing away from the housing opening is designed as a first reflector region 15, which in particular has specular properties. Furthermore, a second reflector region 16 is provided within the housing 10 ', which in analogy to the direct light reflector 4 according to FIG. 1 has two opposite, respectively circular openings 17, 18, wherein the first reflector region facing opening 17 is smaller than that located in the illumination direction Opening 18. Accordingly, the second reflector portion 16 has a tapered toward the bottom of the housing 10 'shape. At its edge facing the first reflector region 15, the second reflector region is provided with a cutout 14 'so as to make space for a light source 6' or its light bulb socket, with light bulb socket or light source 6 'being arranged between the two reflector regions 15, 16.

The opening 17 of the second reflector region 16 facing the first reflector region 15 is arranged at a distance from the first reflector region 15 as shown in FIG. Alternatively, it would also be possible to use the second reflector. Gate area 16 to extend to the first reflector region 15 back, so as to achieve that both reflector regions 15, 16 directly adjacent to each other. Such an extended second reflector region 16 is shown in dashed lines in Fig. 2.

The second reflector region 16 is in the region of its opening in the direction of illumination 18 in a possible embodiment with a disc 13 'sealed dustproof, which is firmly connected in its edge region with the frame 9'. The frame 9 'thus closes together with the disc 13' the entire interior of the housing 10 'dustproof. Alternatively, the opening in the direction of illumination IS of the second reflector region 16 could also be made open.

The Littitundurchlässigkeit of the frame 9 'causes light can escape through the opening 18 of the housing 10' exclusively.

In order to replace the luminous means 6 ', the frame 9' together with the disk 13 'fastened thereto and the second reflector region 16 can be detached from the housing 10' so that the luminous means 6 'is freely accessible. is what brings the already explained in connection with FIG. 1 advantages.

3 shows a recessed luminaire according to the invention in plan view, which has a direct light exit region 1 'and a diffuser light exit region 2' surrounding it (analogous to FIG. 1). The direct light exit region l ¹ is delimited at its outer circumference by a circular line 19, which at the same time represents the inner boundary of the diffuse light exit region 2 '. The direct light exit region 1 'extends in the plane of the drawing in the same plane as the opening in the direction of illumination of a direct light reflector, which likewise runs along the circular line 19. The direct light reflector extends into the plane of the drawing up to a rear, opposite in the direction of illumination, not shown in FIG. 3 reflector opening.

Arranged within the direct light reflector is a light source 6 ", which is designed as an elongated compact fluorescent lamp Alternatively, the light bulb 6" could also be arranged behind or above the direct light reflector.

Behind the direct light reflector extending into the plane of the drawing, an additional reflector 7 'is provided which extends in a plane extending parallel to the plane of the drawing. The relative arrangement of direct light reflector, light source 6 and additional reflector 7 'is similar to the representation of FIG. 1.

The diffuse light exit region 2 ', which is delimited on the inside by the circular line 19, is bounded on the outside by a square line 20, which in turn forms the inner boundary of a frame 9 "of the illustrated recessed light The frame 9" lies with its side facing away from the illumination direction to a mounting surface, not shown, in particular a ceiling and thus covers together with the in the frame 9 "recessed downlight for

Recording the cuboid housing of the recessed light provided, existing in the mounting surface opening.

The essential difference between the recessed luminaire according to FIG. 3 and the recessed luminaire according to FIG. 1 is that the illuminant in which the light-emitting means 6 "is held according to FIG. 3, is arranged in the housing such that the light-emitting means 6" inserted into the light-emitting means extends along a diagonal of the housing. 3 illustrates that an optimal and central position of the illuminant 6 "within the reflector regions can thus be achieved." Moreover, replacement of the luminous means 6 "after removal of the frame 9", together with the direct-light reflector from the housing, is so in the interior of the housing Plenty of space is available so that the bulb 6 "can be conveniently removed from or inserted into the bulb socket.

LIST OF REFERENCE NUMBERS

1 D irect light exit area r Direct light exit area

2 Diffuse light exit area

2 'diffuse light exit area

4 direct light reflector

6 bulbs

& Illuminants

6 "bulbs

7 additional reflector

7 'additional reflector

9 frames

9 'frame

9 "frame

10 housing

10 'case

11 installation area

11 'installation area

12 corner element

12 'corner element

13 disc

13 'disc

14 section

14 'detail

15 first reflector area

16 second reflector area

17 opening

18 opening

19 circle line

20 square line

Claims

claims

1. recessed luminaire with a holder for mounting in a mounting surface (11, 11 '), in particular a ceiling, a bulb holder and a reflector, characterized in that the reflector at least a first reflector region (7, 7', 15) , which is followed by a second reflector region (4, 16) in the illumination direction, which is detachable from the first reflector region (7, 7 ', 15) in order to enable a light source exchange.

2. Recessed luminaire according to claim 1, characterized g e k e n e c i n e t that the second reflector region (4, 16) from the first reflector region

(7, 7 ', 15) can be pivoted away or completely detachable.

3. Recessed luminaire according to one of the preceding claims, characterized in that the light-emitting means and the first reflector region (7, 7 ', 15) in a light-tight and / or dust-tight housing (10, 10') are arranged, on which the second reflector region ( 4, 16) articulated or by means of a releasable screw, magnetic, clip, snap or bayonet connection can be fastened.

Recessed luminaire according to one of the preceding claims, characterized in that the second reflector region (4, 16) has a reflector opening (18) located in the illumination direction, which is designed to be open or by a translucent or transparent disc (13, 13 ') is completed at least substantially dustproof.

Recessed luminaire according to one of claims 3 or 4, characterized in that the housing (10, 10 ') by the second reflector region (4, 16) detachably fastened to the housing (10, 10') and / or elements (9 ') is completed at least substantially dustproof.

6. Recessed luminaire according to one of the preceding claims, characterized in that e e c e n e c e s e s that first and second reflector region (15, 16) adjacent to each other at least in sections.

7. Recessed luminaire according to one of the preceding claims, characterized in that the first reflector region (7, 7 ') as an additional reflector and the second reflector region (4) is designed as a direct light reflector.

8. Recessed luminaire according to claim 7, characterized in that e e e c e e n e that between the additional reflector (7, 7 ') and direct light reflector (4) is formed a light passage area.

9. Recessed luminaire according to one of claims 7 or 8, characterized in that a reflector located in the direction of illumination (18) of the direct light reflector (4) has a direct light exit region (1, 1 ') defined, which is at least partially surrounded by a diffuse light exit region (2, 2 ').

10. Recessed luminaire according to claim 9, characterized in that e e e c e e n e that the direct light exit region (1, 1 ') and the diffuse light exit region (2, 2') by a common, attachable in the light-emitting bulb bulbs (6, 6 ") can be acted upon.

11. Recessed luminaire according to one of claims 9 or 10, characterized in that the diffuse light exit region (2, 2 ') of an attachable in the light-emitting bulb (6, 6 ") exclusively indirectly via the additional reflector (7, 7') acted upon is.

12. Recessed luminaire according to one of claims 7 to 11, characterized in that the additional reflector (7, 7 ') is formed at least in part by at least one planar or predeterminable curved or kinked reflector torfläche having a predetermined distribution of the direct light exit area (1) and to the diffused light exit region (2) guided portion of the reflected light ensures.

13. Recessed luminaire according to one of the preceding claims, characterized in that the inner surface of the housing (10, 11 ') according to claim 3 at least partially as an additional reflector (7, 7') is formed.

14. Recessed luminaire according to one of the preceding claims, characterized in that the second reflector region (4, 16) in its edge region facing the first reflector region (7, 7 ', 15) has a recess (14, 14') for a passage of a luminous means (6, 6 ', 6 ") which can be mounted in the luminous flux mount having.

15. Recessed luminaire according to one of the preceding claims, characterized in that the housing (10, 10 ') according to claim 3 substantially a cuboid shape and attachable in the light-emitting bulb (6 ") have an elongated shape, wherein the

Longitudinal axis of the lamp holder in a parallel to the mounting surface (11, 11 ') extending plane along a diagonal of the qua- derförmigen housing (10, 10') extends.