EP1006311A2 - Lamp of the type of a signal and/or orientation lamp - Google Patents

Abstract

The signal or orienting light (10) has at least one LED (17) arranged inside a light housing (11). At least one lens element (20) is arranged in the beam course of the LED. The signal or orienting light provides a type of light point as an aid to the orientation. The signal or orienting light is connected with a control system and is controlled by this. The LED (17,fig.2) is mounted on board (18) in the housing (11).

Description

The invention relates to a signal or orientation light according to the preamble of the claim 1.

Such signal or orientation lights are known in the art. They serve, for example the orientation of a person in one poorly or not lit or unknown to her Terrain. The power supply is problematic for a variety of signal and orientation lights, because this means a correspondingly high power consumption is linked to the special measures regarding Cable routing, cable insulation and size of the Luminaire requires.

It is an object of the invention to provide a signal or Orientation light to create a low Power consumption with optimal lighting properties offers.

The invention essentially solves this problem characterized in that at least within a lamp housing an LED is arranged that at least one Lens element is arranged in the beam path of the LED, that the signal or orientation light is a kind Provides a point of light as a guide in the room, and that the signal or orientation light connected to and from a control system is controllable.

By using at least one LED on the one hand achieved that the power consumption of the Signal and / or orientation light is minimized. This advantage results from the physical Properties of an LED (Light Emitting Diode or Light-emitting diode), the electrical power very efficient, with low heat development, converted into light. The power consumption is typically an LED about 0.1 watts. On the other hand, it takes into account that signal or orientation lights basically only require relatively low light intensities, since such lights are not flat Illumination or lighting serve, but only by type of light points in a building or are arranged in a building area.

Due to the very low electrical power consumption when operating the invention Luminaire can be longer and more simply constructed Cable connections are used as in the prior art Technology. In particular with the invention Arrangement of a signal or orientation light in a system of such lights offers controllability the luminaire is a convenient option overall spatial impression in a building or Modify outdoor area. This modification can consist, for example, that in a Dangerous situation if the individual lights flash takes place, the blinking of the individual lights also delayed in the manner of a direction indicator can expire.

The lens element enables, for example Spreading the light cone emitted by the LED, so that the signal or orientation light under different viewing angles from a viewer can be perceived well and their signal or orientation function fulfilled. This takes into account that conventional LEDs have a very low Have beam angle. The lens element enlarged in this case the light cone of the LED.

On the other hand, due to special properties of the lens element, in particular in the edge region of the Cone of light, a smoother transition can be achieved which is the sharp one present with a bare LED Dimming significantly softens. For this purpose, the lens element be designed like a diffuser.

The lens element can also be a translucent Be safety glass pane, if necessary at least partially on the side facing the LED is matted.

In the simplest case, the lens element can optically active light-guiding element, e.g. also a Be a reflector element. The term lens element in The meaning of the invention does not necessarily mean that its side surfaces are spherically curved. It can also be plane-parallel side surfaces.

The lens element is at least advantageously partially translucent. Thus, the lens element between the LED and a light exit opening the lamp or in the light outlet of the Luminaire can be arranged.

However, the lamp according to the invention has it further advantages. Because of the high Lifetime of an LED in the order of approx. The recessed luminaire is maintenance-free for 100,000 hours. A necessary change in the prior art Bulbs are unnecessary. In addition to financial advantages by saving energy due to less Performance thus results in an additional financial advantage in terms of reduced Operating costs due to the omission of replacement parts.

Especially in the exterior of buildings where a special sealing of the lamp, for example must be provided to the masonry improved attachment options. Moreover the entire luminaire can be hermetically sealed, for example molded potting unit be, creating additional manufacturing benefits result.

A decisive advantage of the invention Design of a lamp is the possibility to provide much smaller designs of the lamp. In contrast to conventional light sources, such as TCD, CO29 or QT9 lamps with a corresponding energy consumption of approx. 10 to 18 watts work falls with the invention Light significantly less heat on, so that on a large cold room in the lamp dispensed with and the luminaire be made compact can. Even with an arrangement of several LEDs in a luminaire according to the invention, the total power consumption is at least an order of magnitude below the power consumption known in the prior art.

Another advantage is that it is is a luminaire whose light sources are low-voltage can be operated. This reduces the Cabling effort continues because the laying of low voltage cables is easier, lower security criteria are to be fulfilled and also the necessary ones Power supplies are cheaper.

It should be noted that the act luminaire according to the invention a point of light that is just a kind of fixed point in one Building area or outdoor area for a spatial Orientation of a person serves. The invention Luminaire is not used for area lighting.

It can be advantageous if the LED is dimmable. In this way, the Luminous intensity of the signal or orientation light on the corresponding conditions are adjusted.

In the simplest case you can imagine that, for example, a red and a green LED in a single orientation light according to the invention are arranged and a special as a lens element designed body is provided, that of the LED's emitted light so that a Viewers coming from one direction only at a time recognizes a color even though both LEDs are constantly on Operation. The light can be directed through special design of the interfaces, or by different arrangement of the two LEDs in the Luminaire can be reached.

According to an advantageous embodiment of the Invention, the LED is a multi-color LED. Such a multi-color LED could be electronic control change color and different Signal functions.

It is also conceivable that two or more Multi-color LEDs are arranged in a luminaire. By switching a color combination red / green on green / red, for example, becomes the inverse of a Direction to be displayed possible.

It is particularly advantageous if at least two LEDs with different light functions in a luminaire can be controlled independently are. An orientation light can, for example by switching off those responsible for the orientation light LED and by switching on a different colored, possibly flashing, second LED in this way the function of a warning light get.

According to a further embodiment of the invention are at least two LEDs with different ones Light functions in at least part of each other spatially separate chambers of the lamp housing arranged. First of all, this has the advantage that the Light functions are also spatially separated and therefore a mutual influence of the light functions is excluded. On the other hand, reinforcement the light function of the individual LEDs special physical elements, such as partitions or Reflector elements to be reinforced.

In this embodiment, it can continue be advantageous, the lens element with areas different matting. The areas are therefore corresponding to the LEDs with different Adapted lighting functions. It can be advantageous, a frosted area of the lens element the first type of LED for signal light generation assign, and another area of the lens element without matting the LEDs of the second type assign. This allows the desired lighting functions of the LEDs are amplified.

According to a further embodiment of the invention the interior of the lamp housing has at least two from each other through an opaque Dimming element at least partially separate chambers on. There is at least one LED in the first chamber arranged in a first type and in the second chamber a plurality of LEDs of a second type is arranged.

The LED of the first type can be colored Signal light may be formed, whereas the LEDs second type, for example, are white and an enlarged beam of light on a wall or Can throw floor area.

In addition, for the LEDs of the second type a reflector element can be provided, which advantageously provided with a steamed surface is that be glossy to matte can. The reflector element can, for example, or be ellipsoidal.

The arrangement of such a curved reflector element contributes to spreading in an advantageous manner of the light cone of the LED. Advantageously is the translucent lens element slightly reflective on its side facing the LED trained so that a portion of the light from the LED emitted light after reflection on the lens element falls on the reflector element, from this is reflected back and through a light exit opening the lamp emerges. This will make the light cone expanded and its contours blur.

According to a further advantageous embodiment the invention is in addition to the lens element A diffuser is arranged in the beam path of the LED. The diffuser can be spaced from the lens element his. This arrangement is advantageous for one Luminaire according to the invention with at least one LED and creates a particularly high brilliance from the light emitting light according to the invention. In particular if the safety glass inside, on the Diffuser facing side is matted Multiple reflection an expansion of the light cone of the LED and a softening of the contours possible.

According to a further embodiment of the invention is the LED as a two-legged, with a conventional LED-equipped plastic head. Here there is the advantage that the actual light source is almost punctiform and through use and Arrangement of appropriate optical elements, such as the lens element, influencing the light emitted by the LED is particularly simple is. The desired lighting effects can can be achieved with relatively little effort.

In a particularly advantageous manner, as an LED an SMD (surface mounted device) LED is used. A such LED is immediately on a board attached. A big advantage of using one SMD-LED is now a small depth of the Lamp. SMD LEDs usually have heights of approx. 1-2 mm. There is also the possibility of a automatic, efficient assembly of the board.

Fig. 1 eine erfindungsgemäße Leuchte nach Art einer Einbauleuchte in perspektivischer Ansicht,

Fig. 2 die Leuchte gemäß Fig. 1 in teilgeschnittener Ansicht,

Fig. 3 eine Leuchte in einer Darstellung gemäß Fig. 2 mit zwei LED's,

Fig. 4 ein drittes Ausführungsbeispiel einer erfindungsgemäßen Leuchte in einer Darstellung gemäß Fig. 1,

Fig. 5 die Leuchte gemäß Fig. 4 in einer teilgeschnittenen Schrägansicht,

Fig. 6 die Leuchte gemäß Fig. 5 in einer teilgeschnittenen Ansicht,

Fig. 7 den Innenteil der Leuchte gemäß Fig. 5 in perspektivischer Ansicht und

die Fig. 8 bis Fig. 20 Anwendungsbeispiele für die zu einem Personenleitsystem oder Orientierungssystem zusammengefaßte Anordnung mehrerer erfindungsgemäßer Leuchten in einem Gebäude, bzw. in einem Außenbereich eines Gebäudes.

Further advantages of the invention result from the exemplary embodiments shown in the drawings. In it show:

1 is a light according to the invention in the manner of a recessed light in a perspective view,

2 shows the lamp according to FIG. 1 in a partially sectioned view,

3 shows a lamp in a representation according to FIG. 2 with two LEDs,

4 shows a third embodiment of a lamp according to the invention in a representation according to FIG. 1,

5 shows the lamp according to FIG. 4 in a partially cut oblique view,

6 shows the lamp according to FIG. 5 in a partially sectioned view,

Fig. 7, the inner part of the lamp of FIG. 5 in a perspective view

8 to 20 show application examples for the arrangement of a plurality of luminaires according to the invention in a building, or in an exterior area of a building, combined to form a personal guidance system or orientation system.

The total of 10 in the figures designated light is a signal or orientation light. It has a compact design and can be used as a recessed luminaire, as shown in the figures, but also be designed as a surface-mounted lamp.

1, the lamp comprises a substantially circular cylindrical housing 11 and a flange-like collar 12. The housing 11 is one-sided closed and points to the opposite (with respect to Fig. 1 left) side a light exit opening 13 on. In the embodiment according to the 1 to 6 is approximately centered on the outer surface 14 an annular rubber seal 15 of the housing 11 arranged. To accommodate the rubber seal 15 is in the embodiment, a circumferential outer circumferential groove 16 provided.

The downlight 10 shown in the figures is with its housing 11 in a corresponding opening in masonry, i.e. in a building wall or in Floor, inserted. The flange-like collar 12 lies in the installed state of the lamp 10 essentially flush with the building or part of the building.

Fig. 2 shows the interior of an inventive Luminaire 10 with an LED 17. The LED 17 is firmly arranged on a board 18, in particular with her two legs 19 soldered to the board. In the figures, a conventional LED is shown as an LED. The same applies when using made an analog arrangement for an SMD LED. The SMD LED is attached directly to the board 18. The overall depth of the lamp 10, that is, the axial length the housing 11 of the lamp 10, can be used of an SMD LED can be reduced even further. This enables even more compact designs of the luminaire 10.

The board 18 may include special ones Conductor tracks or a chip, not shown as well as connection options for not shown Power supply and control cables the LED 17. The connecting lines, not shown 2 by the right end of the Housing 11 out of the lamp 10 and run through the masonry.

In the beam path of the LED 17, that is between Light exit opening 13 of the lamp 10 and the LED 17, a lens element 20 is arranged according to FIG. 2. The exemplary embodiment is a circular pane made of safety glass that opens its side 21 facing the LED 17 is matted.

Between LED 17 and lens element 20 is of the matted side 21 of the lens element 20 spaced a diffuser 22 is arranged. The diffuser 22 can consist of acrylic glass, for example.

The combination of diffuser 22 and lens element 20 has the influence described below to the light emitted by LED 17:

That of the LED 17 under a very small one Solid angle emitted light is transmitted through the diffuser 22 scattered. Then the light falls on the matted side 21 of the lens element 20. One part of the total luminous flux can now by Exit light exit opening 13 from lamp 10. The remaining part of the luminous flux is from the frosted side 21 of the lens element 20 reflected back to the diffuser 22. Because of that comes it to multiple reflections.

Overall, the arrangement ensures that the sharp cone of light typical of an LED 17 is expanded evenly, in particular the soften the sharp-edged contours of the light cone. The cone of light is imaged on the lens element and created that for an orientation or Signal light necessary light.

The downlight 10 is hermetic in itself completed. On the light exit opening 13 opposite side 23 of the housing 11 can be a cover element 24 may be provided. This is preferable potted with the housing 11.

By using LED 17, the entire Light 10 be made very small. In the embodiment 2 and 3 is the inner diameter I of the housing 11, for example about 16 mm and the outer diameter A of the collar 12 approx. 37 mm. In this way, they are particularly handy and inexpensive orientation or signal lights possible.

The hermetically sealed design of an inventive Lamp 10 has the advantage that the Luminaire does not have to include any detachable parts allow the lamp to be replaced. On this way you can make any special necessary so far Screw or clamp connections for a change the illuminant detaching a cover element allow from the lamp 10, drop out. Because of corresponds to the long service life of an LED Life of the LED 17 the life of the lamp 10. In the event of failure of an LED 17, the entire lamp 10 can be replaced. For that you can special fasteners, such as spring tongue type Tabs 25 may be provided.

Fig. 3 shows a second embodiment a luminaire 10 according to the invention, the two LEDs 17 includes. With such an arrangement, the both LEDs 17 different colors, for example have red and green. Are advantageous the two LEDs 17 separately from one another Control system, not shown, controllable. It can be provided, for example the green LED in a first situation, whereas the second, red LED is off. Changes the situation, for example from a normal situation in a Gafahr situation, can from the central Control system the green LED off and the red LED can be activated at the same time. The people, located in or on the building, in whose building subareas several of the invention Lights 10 are arranged, can now in a simple way through the different Orient signal lights.

An application is also conceivable, for example Guide people through a part of the building.

4 to 7 show a third embodiment a lamp 10 according to the invention. Here is provided within a housing 11 two different To provide types of LEDs 26, 27, which in two chamber-like, at least partially from each other separate sub-rooms 28, 29 are arranged. By doing Subspace 28 is in the embodiment according to the 5 and 6, a colored LED 26 is arranged. By doing second subspace 29 are in the embodiment five linear white LEDs 27 arranged in a row. The separation of the two chamber-like sub-rooms 28 and 29 from each other by a dimming element 30 reached that in the manner of a cutting disc is trained. Below the aperture 30 are the five white LEDs 27 in special, intended Recesses 31 arranged.

6 is below that LEDs 27 arranged a reflector element 32. This can be spherical or ellipsoidal his. In the exemplary embodiment are reflector elements 32 and dimming 30 integrally interconnected and form in this way a single component.

In the light exit opening 13 of the lamp 10 a safety glass is arranged as the lens element 20. This is in the area of subspace 28 on his the LED 26 facing side 21 matted. On in this way the light path is that of the LED 26 emitted light comparable to the embodiment 2 and 3.

The lens element 20 can in terms of Fig. 6 upper area formed as a prismatic glass his.

In the lower area of the inside with respect to FIG. 6 21 of the lens element 20 is the surface 21 not frosted. As a result, a large Share of light emitted by LED 27 the lens element 20 exits. Here too however, a portion of the light is reflected and falls on the reflector element 32. The arched Inner surface 33 of the reflector element 32 as well as that the area 34 of the dimming facing the subspace 29 30 have a vapor-deposited surface that is shiny until can be matte.

The inner diameter D of the housing 11 is in this embodiment approx. 29 mm. The axial Length L of the housing 11 is in this embodiment approx. 40 mm. The outer diameter A of the flange-like collar 12 is approximately 50 mm.

Fig. 7 shows a perspective view of the Interior of the lamp housing 11 arranged parts in isolation. Here it becomes clear that the Subspace 28 comprises a reflector element 35, which formed semi-cylindrical in the embodiment is. The reflector element 35 and the shield 30 are on their surfaces 36 facing partial space 28 and 37 provided with a white layer of paint.

The following are several application examples the signal or orientation lights according to the invention described that lead to a control system 45 for People or an orientation system summarized are.

8 shows lights 10 according to the invention, the arranged in the region of the reveal of a wall 38 are.

Fig. 9 shows a double row of inventive Glow 10, along the bottom 39 in the area are arranged by walls 38.

An ensemble of lights 10 according to the invention can also signaling in a particularly advantageous manner of special building parts or devices serve. 10 is a series of the invention Lights 10 shown in front of two elevators 40. 11, it also lends itself to inventive Lights 10 in the edge area of steps 41 to arrange a staircase 42. Fig. 12 shows in the area the end of a staircase 42 also a row of lights 10 according to the invention.

An arrangement of lights 10 according to the invention is also beneficial to, for example, in a Glass wall 43 one at first glance maybe to signal unrecognizable door 44.

14 shows a row arrangement according to the invention Light up 10 to the start of a staircase 42 signal and Figs. 15 to 20 show more Application examples for from lights according to the invention 10 existing light guide or orientation systems 45, which is a line of a person through a Enable buildings or a part of a building. The line-shaped Arrangement of multiple lights 10 can have a purely conductive character to one Person choosing the direction when moving through the To facilitate buildings. Directional guidance systems of this type are shown for example in Figs. 16 and 19.

On the other hand, double arrangements of several In principle, lights 10 also have to be walked on Spatially limit the area to allow the person to choose the route to facilitate. Such space limitations are, for example 15, 18 and 20.

Special advantages arise when the individual Light diodes can be controlled separately are. This allows spatial effects are generated in the event of danger or in general a desired steering of people additional Can convey information.

The illustrated arrangements of inventive Luminaires can also be used as emergency lighting, a night light or for example used as fire protection lights in smoky rooms become.

Claims (24)

Signal or orientation light for mounting in or on a building surface (39) or part of a building (38, 41, 42), the signal or orientation light being combined with other signal or orientation lights (10) to form a personal guidance system,
characterized by that at least one LED (17, 26, 27) is arranged within a lamp housing (11), that at least one lens element (20) is arranged in the beam path of the LED (17, 26, 27), that the signal or orientation light provides a kind of light point as an orientation aid in the room, and that the signal or orientation light is connected to a control system and can be controlled by this. Signal or orientation light after Claim 1, characterized in that the lens element (20) that emitted by the LED (17, 26, 27) Spread light. Signal or orientation light after Claim 1 or 2, characterized in that the Lens element (20) designed in the manner of a diffuser (22) is. Signal or orientation light after Claim 1 or 2, characterized in that the Lens element (20) a translucent safety glass pane which is matted on the inside is. Signal or orientation light after Claim 1 or 2, characterized in that the Lens element (20) is a reflector element (32, 35). Signal or orientation light after one of the preceding claims, characterized in that the side surfaces of the lens element (20) are arched sparingly. Signal or orientation light after one of claims 1 to 6, characterized in that the side surfaces of the lens element (20) are plane-parallel are. Signal or orientation light after one of the preceding claims, characterized in that the signal or orientation light a hermetically sealed, for example potted, Unit forms. Signal or orientation light after one of the preceding claims, characterized in that by triggering a blinking of the signal or orientation light, for example according to Art a direction indicator. Signal or orientation light after one of the preceding claims, characterized in that the signal or orientation light is dimmable is trained. Signal or orientation light after one of the preceding claims, characterized in that within the lamp housing (11) at least two LEDs (17, 26, 27) are arranged which perform different lighting functions. Signal or orientation light after Claim 11, characterized in that a red and a green LED (17, 26, 27) inside the lamp housing (11) are arranged. Signal or orientation light after one of the preceding claims, characterized in that the LED (17, 26, 27) is a multi-color LED. Signal or orientation light after Claim 13, characterized in that two or more multi-color LEDs arranged in the luminaire housing (11) are. Signal or orientation light after one of the preceding claims, in particular according to Claim 11, characterized in that at least two LEDs with different light functions are provided and can be controlled independently of each other. Signal or orientation light after one of the preceding claims, in particular according to Claim 11, characterized in that at least two LEDs with different light functions are provided and in separate rooms (28, 29) of the lamp housing (11) arranged are. Signal or orientation light after one of the preceding claims, characterized in that the lens element (20) with areas different Matting is formed. Signal or orientation light after Claim 17, characterized in that the areas different matting on LEDs with different Light functions are adjusted. Signal or orientation light after one of the preceding claims, in particular according to Claim 16, characterized in that the interior of the lamp housing (11) at least two from each other thanks to an opaque anti-glare element (30) at least partially separate chambers (28, 29). Signal or orientation light after one of the preceding claims, characterized in that in addition to the lens element (20) in Beam path of the LED (17, 26, 27) a diffuser (22) is arranged. Signal or orientation light after Claim 20, characterized in that the diffuser (22) is spaced from the lens element (20). Signal or orientation light after one of the preceding claims, characterized in that the LED (17, 26, 27) is a conventional two-legged LED (17, 26, 27) with a plastic head. Signal or orientation light after one of claims 1 to 21, characterized in that the LED is an SMD (surface mounted device) LED. Signal or orientation light after one of claims 1 to 4 or one of claims 6 to 23, characterized in that in addition to Lens element (20) a reflector element (32, 35) is provided is.

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