EP2131627A1 - Lamp - Google Patents
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- Publication number
- EP2131627A1 EP2131627A1 EP09007424A EP09007424A EP2131627A1 EP 2131627 A1 EP2131627 A1 EP 2131627A1 EP 09007424 A EP09007424 A EP 09007424A EP 09007424 A EP09007424 A EP 09007424A EP 2131627 A1 EP2131627 A1 EP 2131627A1
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- EP
- European Patent Office
- Prior art keywords
- switching
- luminaire according
- led
- switching position
- position sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to a luminaire having a housing with light exit region, an LED matrix arranged in the light exit region, which comprises a plurality of juxtaposed rows of mutually spaced apart LEDs in the longitudinal extent.
- a luminaire is described with a matrix of LED, which has a housing and a light exit opening,
- the object of the invention is now to provide a way to adapt the luminous behavior of a luminaire of the type mentioned in the application, in particular for a workplace lighting.
- the luminaire can be realized in a longitudinal direction such that the matrix has a larger number of rows than LEDs in one row each.
- the lines are formed as non-rectilinear lines.
- the term matrix is intended to encompass not only square or generally rectangular matrix but also such arrangements in which the lines are nonlinear, e.g. are designed as rings, so a matrix comprises a plurality of concentric rings or nested ellipses or similar shapes, these non-linear lines in the longitudinal direction, for example in the radial direction, are switchable.
- a second switching position generator of the same type as the first switching position generator is arranged, wherein both switching position encoders limit a luminous area. Accordingly, the luminous area can be shifted on the LED matrix.
- the design of the housing can be functionally integrated into the lamp by the switching position sensor is movably connected to the housing.
- a plurality of LEDs are controlled by a microprocessor.
- the shift position sensors are moved or switched by hand and their position is determined so that a microprocessor can determine its exact location and power the LEDs located between the light control elements. Outside LEDs are not powered. This ensures that only the number of LEDs is supplied with energy that is needed for the actual use (work area). In this way, not only the LEDs become energy savers, but in addition the light control itself.
- a second element disposed on the first element can control the light scattering angle.
- the microprocessor controls depending on the position of the second element, the respective LEDs, which should be energized or not.
- this second element could change the light color, the light intensity and the light heat of the defined area. That There are at least two elements on a luminaire object which, depending on their position, define the position and quantity of the emitted light. Already every function by itself includes a novelty in the lighting control.
- the magnetic field generated by the magnet can be converted into a position information in that the position sensor consists of a plurality of longitudinally arranged behind one another reed contacts, which are connected to the switching electronics.
- this can consist of a parallel to the LED matrix arranged touch-sensitive input field.
- a luminous area is set.
- the lamp itself would not be physically or difficult to reach, it is expedient to arrange the switch position transmitter in a remote control unit which is wirelessly connected to the receiving unit and this with the switching electronics.
- the switching position sensor On the remote control unit, there are several ways of implementing the switching position sensor, namely by means of a rotary encoder, a keyboard or a touch-sensitive input field. With a combined rotary encoder / switch it is also possible to simulate several switch position encoders. The implementation of the input field can be done in an analogous manner to an input field on the lamp itself.
- a remote control unit in addition to switching position sensors, which are arranged on the lamp itself, provide, for example, to make the lamp in their applications multivalent.
- the luminaire according to the invention also makes it possible to dimming in an elegant way by providing the switching position generator with a first input means adjusting the luminous intensity of the LED, which is connected to the switching electronics which control the luminous intensity of the LED according to the position of the input means.
- the ring can not only be longitudinally displaceable but also rotatable and the rotational movement can be evaluated for setting the luminosity.
- a rotational movement of the ring could also be used for the setting of certain light directions of the LED, for example by tilting the LED matrix or for the selection of certain rows of LEDs, so adjacent LED multiple lines.
- the invention also makes it possible to adapt the luminescent colors of the luminaire to the intended use or the user's sense, in that the LEDs are designed as multicolor LEDs and the switching position generator is provided with a second input means which adjusts the luminescent color of the LED and which is connected to the switching electronics is, which is designed to control the luminous color of the LED according to the position of the input means.
- a luminaire according to the invention Fig. 1 can be used as a workstation light 1, especially for a wide variety of needs on a VDU workstation.
- a workstation light In the foreground is working with mobile devices such as laptops or netbooks, which are not like conventional PCs constantly in a central location.
- the light is no longer controlled via an on / off switch, as in a normal high table lamp, but the user can achieve the required lighting ratio by illuminated luminous areas 2 and unlit luminous areas 3 by means of switching position sensors 4, which in this embodiment realizes as movable rings are, set.
- the light should be able to be directed by touching or pulling rings into desired working areas 5.
- Fig. 9 and Fig. 3 three functional modules 6, 7, were provided in the luminaire 1 according to the invention.
- the illumination is realized by rows of LEDs 6, which are also in Fig. 4 can be seen.
- the sensory detection of the positions is performed by a position sensor 7 in the form of reed contacts 8, which in the longitudinal extent 9 perpendicular to the in Fig. 4 illustrated LED rows 6 are arranged.
- logic modules 10 are used as an interface between the position sensor 7 and the LED rows 6 arranged.
- Reed contacts 8 consisting of a contact spring and a magnet armature, are usually melted under vacuum but also under inert gas in a glass flask. Of the Contact closure is caused by an externally applied magnetic field, typically by permanent magnets or current-carrying coils.
- a magnetic field-generating component If a magnetic field-generating component is brought into the vicinity of a reed contact 8, magnet armature and contact spring contract and close the contact (push-button principle). As the distance increases, the magnetic field strength decreases and the reed contact 8 opens.
- the reed contacts 8 were mounted on a printed circuit board 11 perpendicular to the luminous lines, as shown in FIG Fig. 2 is shown.
- a neodymium or a round magnet can be used.
- the neodymium magnet has a rectangular shape with a north and a south pole. The maximum distance defines the distance that guarantees reliable switching of the reed contact 8.
- the reed contacts 8 work like buttons. If an adjusting means 14 with a magnet past a reed contact 8, the contact switches. The resulting "low-high" edge must be detected and then evaluated. For this purpose, T-flip-flops are suitable, because with each "low-high" edge at its input, the output signal changes, as in Fig. 6 is shown.
- rings 15 to 18 are used, the number of which, however, is expandable. These rings 15 to 18 are arranged displaceably on the housing 12.
- Fig. 7 illustrates this schematically wherein with the aid of the first ring 15 and the second ring 16 of the luminous area 2 is formed for the laptop, with the third ring 17 and the fourth ring 18 of the luminous area 2 for a worksheet.
- the intensity of the light can be adjusted.
- the base-emitter voltage at the drive transistor 19 must be influenced for this purpose.
- a possible wiring of the fixed voltage controller is the circuit in Fig. 3 ,
- a variable output voltage can be realized at the fixed voltage controller, which influences the base current IB to be controlled and thus the voltage UBE. Due to the exponential relationship, small changes in UBE are sufficient to achieve large changes in the collector current IC.
- the transistor 19 To dim the LEDs 20, the transistor 19 must be driven in the active linear region. As a result, the collector current can be influenced by the transistor 19 and thus the brightness of the LEDs 20.
- Fig. 9 represents the principle of the operation of a magnetostrictive sensor.
- Magnetostrictive transducers are sensors that operate on the principle of magnetostriction.
- the sensor consists of a pressure-resistant measuring rod, which fits, for example, in a drilled piston rod, as well as an annular position sensor (permanent magnet), which is mounted at the end of the rod.
- the measurement process is triggered by a short current pulse in magnetostrictive sensors, which generates a circular magnetic field around the waveguide.
- the field lines of the position transmitter which marks the measuring position in the waveguide, run perpendicular to this.
- the magnetostriction At the superposition of the two magnetic fields in the waveguide creates an elastic deformation, the magnetostriction. This deformation propagates in the waveguide on both sides at a speed of about 2800ms.
- the torsion wave is converted into an electrical signal, attenuated at the other, so that there are no overlaps in subsequent measurements.
- a microcontroller calculates the runtime from the point of origin to the signal converter.
- the switching position generator 4 consists of a touch-sensitive input field 21.
- Fig. 11 represents the principle of control of the lamp according to the invention by a remote control 22.
- the switching position sensor 4 is arranged in the remote control unit 22, which is wirelessly connected to a receiving unit 23 and this with the switching electronics for switching the LED rows 6.
- the switching position generator 4 consist of a rotary encoder 24 of a keyboard or a touch-sensitive input field 21.
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Leuchte mit einem Gehäuse mit Lichtaustrittsbereich, einer in dem Lichtaustrittsbereich angeordneten LED-Matrix, die in Längserstreckung mehrere nebeneinander angeordnete Zeilen aus jeweils zueinander beabstandeten LED umfasst.The invention relates to a luminaire having a housing with light exit region, an LED matrix arranged in the light exit region, which comprises a plurality of juxtaposed rows of mutually spaced apart LEDs in the longitudinal extent.
Bisher wurde das Problem der Ausleuchtung von individuellen Bereichen durch mechanisch, bewegliche Teile, d.h. von Abschirmungen oder des Leuchtmittels selbst, gelöst. Bekannt sind Leuchten mit herkömmlichen Leuchtmitteln, bei denen Teile des Leuchtmittels verdeckt werden können oder aber das Leuchtmittel selbst in die gewünschte Position gebracht werden kann. Mittlerweile hält die LED Technik immer mehr Einzug in den Alltag. Gründe sind die längere Lebensdauer und der wesentlich geringerer Energieverbrauch im Gegensatz zu herkömmlichen Leuchtmitteln. Stand der Technik sind LED Leuchten, welche in ihrer Lichtfarbe und Lichtintensität durch Prozessoren beeinflusst werden können. Wenn es aber darum geht, nur bestimmte Teilbereiche auszuleuchten, werden auch im Bereich der LED Technik mechanische Abschirmungen oder Positionsgeber verwendet.So far, the problem of illumination of individual areas by mechanical, moving parts, i. of shields or the bulb itself, solved. Lights are known with conventional bulbs in which parts of the bulb can be covered or the bulb itself can be brought into the desired position. Meanwhile, the LED technology is becoming more common in everyday life. Reasons are the longer life and the much lower energy consumption in contrast to conventional bulbs. State of the art are LED lights, which can be influenced in their light color and light intensity by processors. But when it comes to illuminating only certain areas, mechanical shields or position sensors are also used in the field of LED technology.
Nachteile bekannter Lösungen sind ökonomischer wie funktioneller Art. Zum einen ist eine unökonomische Lichtausnutzung zu verzeichnen, indem z.B. Leuchtstoffröhren immer in ihrer gesamten Länge leuchten und in bestimmten Situationen nur ein Bereich benötigt wird. Zum anderen muss mit aufwendigen Gelenken, Abschirmungen, Seilzügen und Befestigungen die Möglichkeit der individuellen Bereichsausleuchtung hergestellt werden. Dabei wird immer versucht mit z.B. Abdeckungen die Abstrahlung des Lichtes zu lenken. Dies gilt nicht nur für herkömmliche Leuchtmittel, sondern ist zurzeit Stand der Technik, d.h. auch in der LED Technik üblich.Disadvantages of known solutions are economical as well as functional. On the one hand, an uneconomical utilization of light can be noted, for example by fluorescent tubes always shine in their entire length and in certain situations only one area is needed. On the other hand, with complex joints, shields, cables and fasteners, the possibility of individual illumination of the area must be established. It is always trying with eg covers to direct the radiation of light. This is not only true for conventional bulbs, but is currently state of the art, ie also common in LED technology.
In der
Bei einer Leuchte mit einer derartigen Matrix oder auch bei sonstigen Arbeitsplatzbeleuchtungen oder Raumbeleuchtungen besteht der Nachteil dass diese nur ungenügend oder mit hohem Aufwand an den Einsatzzweck angepasst werden können.In a luminaire with such a matrix or in other workplace lighting or room lighting, the disadvantage that they can be adapted only insufficiently or with great effort to the intended use.
So führt oft die Aufstellung von Arbeitsplatzleuchten an Computerarbeitsplätzen zu Blenderscheinungen auf dem Monitor oder bei Verringerung der Blenderscheinungen zu ungenügender Ausleuchtung der sonstigen Arbeitsfläche. Auch bei Raumbeleuchtungen wird eine individuelle Anpassung an verschiedene Einsatzzwecke nur entweder mit redundanten Beleuchtungssystemen erreicht, die wahlweise zu- oder abschaltbar sind, oder durch einstellbare Beleuchtungssysteme, wie Schienensystems, die zumindest einen nicht unerheblichen Arbeitsaufwand bei einer Änderung des Einsatzes erfordern. Insbesondere wird dies bei Galerien deutlich, wo Ausstellungen wechseln und regelmäßig eine Anpassung der Beleuchtungsverhältnisse vorzunehmen ist.For example, the placement of workplace luminaires on computer workstations often leads to glare on the monitor or, if the glare is reduced, to insufficient illumination of the other work surface. Even with room lighting an individual adaptation to different applications is only achieved with either redundant lighting systems that are either switched on or off, or by adjustable lighting systems, such as rail system that require at least a significant amount of work when changing the use. In particular, this is evident in galleries, where exhibitions change and regularly adjust the lighting conditions.
Die Aufgabe der Erfindung besteht nun darin, eine Möglichkeit zu schaffen, das Leuchtverhalten einer Leuchte der eingangs genannten Art an den Einsatzzweck, insbesondere für eine Arbeitsplatzbeleuchtung, anzupassen.The object of the invention is now to provide a way to adapt the luminous behavior of a luminaire of the type mentioned in the application, in particular for a workplace lighting.
Gemäß der Erfindung wird die Aufgabe dadurch gelöst, dass die Zeilen der LED-Matrix einzeln ansteuerbar sind und Mittel zum in Längserstreckung fortschreitenden Ein- und Ausschalten jeweils einander benachbarter Zeilen, vorgesehen sind, die zumindest einen ersten Schaltpositionsgeber beinhalten. Damit wird es möglich, bestimmte Leuchtbereiche durch fortschreitendes Zu- oder Abschalten einander benachbarter LED-Zeilen einzustellen. Dies hat beispielsweise den Vorteil, dass eine Arbeitplatzleuchte, die über dem Display eines tragbaren Computers angeordnet ist und auf dem Display zu Blendungen führt, im Bereich des Displays zielgerichtet ausgeschaltet werden kann.According to the invention, the object is achieved in that the rows of the LED matrix are individually controllable and means are provided for progressing in the longitudinal extension switching on and off each adjacent rows, which include at least a first switching position generator. This makes it possible to set certain luminous areas by progressively connecting or disconnecting adjacent LED rows. This has the advantage, for example, that a workstation light which is arranged above the display of a portable computer and leads to glare on the display can be purposefully switched off in the area of the display.
Die Leuchte kann in einer Ausgestaltung insbesondere dadurch längserstreckt realisiert werden, dass die Matrix eine größere Anzahl von Zeilen als LED in je einer Zeile aufweist.In one embodiment, in particular, the luminaire can be realized in a longitudinal direction such that the matrix has a larger number of rows than LEDs in one row each.
In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die Zeilen als nicht-geradlinige Zeilen ausgebildet sind. Demnach soll der Begriff Matrix nicht nur quadratische oder allgemein rechteckige Matrix umfassen sondern auch solche Anordnungen, bei denen die Zeilen nicht-geradlinige, z.B. als Ringe gestalte sind, also eine Matrix mehrere konzentrische Ringe oder ineinander liegende Ellipsen oder vergleichbare Formen umfasst, wobei diese nicht-geradlinigen Zeilen in Längserstreckung, beispielsweise in radialer Richtung, schaltbar sind.In a further embodiment of the invention, it is provided that the lines are formed as non-rectilinear lines. Accordingly, the term matrix is intended to encompass not only square or generally rectangular matrix but also such arrangements in which the lines are nonlinear, e.g. are designed as rings, so a matrix comprises a plurality of concentric rings or nested ellipses or similar shapes, these non-linear lines in the longitudinal direction, for example in the radial direction, are switchable.
Weiterhin ist vorgesehen, dass ein zweiter Schaltpositionsgeber dergleichen Art wie der erste Schaltpositionsgeber angeordnet ist, wobei beide Schaltpositionsgeber einen Leuchtbereich begrenzen. Dementsprechend kann der Leuchtbereich auf der LED-Matrix verschoben werden.It is further provided that a second switching position generator of the same type as the first switching position generator is arranged, wherein both switching position encoders limit a luminous area. Accordingly, the luminous area can be shifted on the LED matrix.
Hierbei können auch mehrere Leuchtbereiche mit je zwei Schaltpositionsgebern vorgesehen sein. Um in dem Beispiel zu bleiben, ist es damit möglich, beispielsweise das Display eines tragbaren Computers abzublenden, und rechts und links des Displays Leuchtbereiche zuzulassen, um z.B. auf der einen Seite ein Manuskriptblatt und auf der anderen Seite Literatur lesen zu können.Here also several light areas with two each Switch position sensors be provided. In order to stay in the example, it is thus possible to fade, for example, the display of a portable computer, and allow the right and left of the display light areas, for example, on the one hand to read a manuscript sheet and on the other side literature.
Ein Schaltpositionsgeber kann zweckmäßiger Weise sowohl dem Einschalten als auch dem Ausschalten dienen, indem die Mittel zum in Längserstreckung fortschreitenden Ein- und Ausschalten eine Schaltelektronik zum Ansteuern der LED umfassen, die derart ausgebildet ist, dass bei Stellung des Schaltpositionsgebers relativ zu einer nicht eingeschalten Zeile diese eingeschaltet und bei Stellung des Schaltpositionsgebers relativ zu einer eingeschalten Zeile diese ausgeschaltet wird.A switching position generator can expediently serve for both switching on and switching off, in that the means for the longitudinal extension of switching on and off comprise switching electronics for driving the LED, which is designed such that when the switching position generator is in position relative to a line which is not switched on switched on and the position of the switch position encoder relative to a line switched this off.
Ein besonderer Effekt, der dem Auf- oder Zuziehen einer Gardine ähnlich ist, wird dadurch erreicht, dass der oder die Schaltpositionsgeber in definiertem Bezug zu den Zeilen der LED-Matrix stehen. Damit wird ein Ein- oder Ausschalten an der Stelle hervorgerufen, wo auch tatsächlich das Ein- oder Ausschalten geschieht.A particular effect, which is similar to the opening or closing of a curtain, is achieved in that the one or more switching position sensors are in a defined relation to the rows of the LED matrix. This causes a switch on or off at the point where actually switching on or off is done.
In einer weiteren Ausgestaltung kann die Gestaltung des Gehäuses funktional mit in die Leuchte eingebunden werden, indem der Schaltpositionsgeber beweglich mit dem Gehäuse verbunden ist.In a further embodiment, the design of the housing can be functionally integrated into the lamp by the switching position sensor is movably connected to the housing.
Der Handhabungseffekt wird dadurch verdeutlicht, dass ein Schaltpositionsgeber aus einem längsverschieblichen Stellmittel besteht, das mit einem Positionssensor zusammenwirkt, der mit der Schaltelektronik verbunden ist. Somit kann auch eine Entkopplung des Schaltpositionsgebers von dem eigentlichen Schaltvorgang erfolgen. Damit werden leichte und gut anpassungsfähige Positionssensoren möglich, wodurch sich die Möglichkeiten der ergonomischen Gestaltung deutlich vergrößern.The handling effect is illustrated by the fact that a switching position transmitter consists of a longitudinally displaceable actuating means, which cooperates with a position sensor which is connected to the switching electronics. Thus, a decoupling of the switching position of the actual switching operation can take place. This allows for lightweight and highly adaptable position sensors, thereby increasing the possibilities of ergonomic design increase significantly.
Es ist auch möglich, dass ein Schaltpositionsgeber als ein auf dem Gehäuse verschiebbarer Ring ausgebildet ist.It is also possible that a switching position generator is designed as a sliding ring on the housing.
Insbesondere werden dabei eine Mehrzahl von LEDs durch einen Mikroprozessor angesteuert. Mindestens ein, vorzugsweise zwei oder mehr Schaltpositionsgeber, die als Lichtsteuerungselemente arbeiten, definieren dabei den Bereich, welcher ausgeleuchtet werden soll. Die Schaltpositionsgeber werden per Hand bewegt oder geschaltet und ihre Position wird ermittelt, so dass ein Mikroprozessor ihre genaue Lage bestimmen kann und die zwischen den Lichtsteuerungselementen befindlichen LEDs mit Energie versorgt. Außerhalb befindliche LEDs werden nicht mit Energie versorgt. Damit wird erreicht, dass nur die Anzahl an LEDs mit Energie versorgt wird, die man für den tatsächlichen Gebrauchszweck (Arbeitsbereich) benötigt. Auf diese Weise werden nicht nur die LEDs zum Energiesparer, sondern zusätzlich die Lichtsteuerung an sich. Optional kann ein zweites Element, welches auf dem ersten Element angeordnet ist, den Lichtstreuwinkel steuern. Indem das zweite Element durch eine Rotation um seine Achse bewegt wird, steuert der Mikroprozessor je nach Lage des zweiten Elementes die jeweiligen LEDs an, welche mit Energie versorgt werden sollen oder nicht. Zusätzlich könnte durch dieses zweite Element die Lichtfarbe, die Lichtintensität und die Lichtwärme des definierten Bereichs verändert werden. D.h. an einem Leuchtenobjekt gibt es mindestens zwei Elemente, die je nach ihrer Lage die Position und Menge des abgegebenen Lichts definieren. Bereits jede Funktion für sich gesehen beinhaltet eine Neuartigkeit in der Lichtsteuerung.In particular, a plurality of LEDs are controlled by a microprocessor. At least one, preferably two or more switching position transmitters, which operate as light control elements, thereby define the area which is to be illuminated. The shift position sensors are moved or switched by hand and their position is determined so that a microprocessor can determine its exact location and power the LEDs located between the light control elements. Outside LEDs are not powered. This ensures that only the number of LEDs is supplied with energy that is needed for the actual use (work area). In this way, not only the LEDs become energy savers, but in addition the light control itself. Optionally, a second element disposed on the first element can control the light scattering angle. By the second element is moved by a rotation about its axis, the microprocessor controls depending on the position of the second element, the respective LEDs, which should be energized or not. In addition, this second element could change the light color, the light intensity and the light heat of the defined area. That There are at least two elements on a luminaire object which, depending on their position, define the position and quantity of the emitted light. Already every function by itself includes a novelty in the lighting control.
Das wesentlich Neue der Erfindung ist die Definition individueller Lichtbereiche durch eine Mikroprozessor gesteuerte Minderung oder Vermehrung angesteuerter LEDs innerhalb einer definierten räumlichen Struktur sowie die Neuartigkeit der an händischer Konvention (Tangible Interaction) orientierten Art und Weise, wie diese Lichtsteuerung erfolgt.The essential novelty of the invention is the definition of individual light areas by a microprocessor-controlled reduction or multiplication of activated LEDs within a defined spatial structure as well as the novelty of the manual agreement (Tangible Interaction) oriented way, how this light control takes place.
Damit verbundenen beinhaltet die Erfindung ökonomische und funktionelle Vorteile, d.h. durch Ausschluss nicht benötigter Lichtbereiche und Wegfall aufwendiger mechanischer Verfahren zur Herstellung individueller Lichtbedürfnisse wird die elektrische Energie effektiver und effizienter ausgenutzt.Associated with this, the invention includes economic and functional advantages, i. By excluding unnecessary light areas and eliminating the need for elaborate mechanical processes for producing individual lighting requirements, the electrical energy is utilized more effectively and efficiently.
Es ist vorteilhaft, die Stellungsinformation des Schaltpositionsgebers kontaktlos zu erzeugen. Hierzu ist in einer Ausgestaltung vorgesehen, dass das Stellmittel mit einem Magneten versehen ist, der mit dem Positionssensor, der magnetisch sensitiv ausgebildet ist, in Wirkungsverbindung steht.It is advantageous to contactlessly generate the position information of the shift position sensor. For this purpose, it is provided in one embodiment that the adjusting means is provided with a magnet which is in operative connection with the position sensor, which is magnetically sensitive.
Das von dem Magneten erzeugte Magnetfeld kann in eine Stellungsinformation dadurch umgesetzt werden, dass der Positionssensor aus mehreren in Längserstreckung hintereinander angeordneten Reed-Kontakten besteht, die mit der Schaltelektronik verbunden sind.The magnetic field generated by the magnet can be converted into a position information in that the position sensor consists of a plurality of longitudinally arranged behind one another reed contacts, which are connected to the switching electronics.
Eine andere Möglichkeit der Umsetzung des Magnetfeldes in eine Stellungsinformation besteht darin, dass der Positionssensor als ein an sich bekanntes magnetostriktives Messsystem ausgebildet ist.Another possibility of converting the magnetic field into a position information is that the position sensor is designed as a known magnetostrictive measuring system.
Zur Vermeidung jeglicher mechanisch bewegter Bauteile am Schaltpositionsgeber kann dieser aus einem parallel zu der LED-Matrix angeordneten berührungssensitiven Eingabefeld bestehen. Somit wird es möglich, dass beispielsweise mit dem Finger auf dem Eingabefeld entlang gefahren wird und entsprechend der Fingerbewegung ein Leuchtbereich eingestellt wird.To avoid any mechanically moving components on the switching position generator, this can consist of a parallel to the LED matrix arranged touch-sensitive input field. Thus, it is possible that, for example, with the finger on the input field is moved along and according to the finger movement a luminous area is set.
Insbesondere für den Einsatz einer erfindungsgemäßen Leuchte als Raumbeleuchtung, wobei die Leuchte selbst physisch nicht oder nur schwer erreichbar wären, ist es zweckmäßig, den Schaltpositionsgeber in einer Fernsteuereinheit anzuordnen, die drahtlos mit Empfangseinheit und diese mit der Schaltelektronik verbunden ist.In particular, for the use of a lamp according to the invention as room lighting, the lamp itself would not be physically or difficult to reach, it is expedient to arrange the switch position transmitter in a remote control unit which is wirelessly connected to the receiving unit and this with the switching electronics.
Auf der Fernsteuereinheit gibt es mehrere Möglichkeit der Realisierung des Schaltpositionsgebers, nämlich mittels eines Drehgebers, einer Tastatur oder einem berührungssensitiven Eingabefeld. Mit einem kombinierten Drehgeber/Schalter ist es auch möglich, mehrere Schaltpositionsgeber zu simulieren. Die Realisierung des Eingabefeldes kann in analoger Weise zu einem Eingabefeld auf der Leuchte selbst geschehen.On the remote control unit, there are several ways of implementing the switching position sensor, namely by means of a rotary encoder, a keyboard or a touch-sensitive input field. With a combined rotary encoder / switch it is also possible to simulate several switch position encoders. The implementation of the input field can be done in an analogous manner to an input field on the lamp itself.
Grundsätzlich ist es dabei möglich, dass eine Fernsteuereinheit zusätzlich zu Schaltpositionsgebern, die an der Leuchte selbst angeordnet sind, vorzusehen, beispielsweise um die Leuchte in ihren Einsatzmöglichkeiten multivalent zu gestalten.Basically, it is possible that a remote control unit in addition to switching position sensors, which are arranged on the lamp itself, provide, for example, to make the lamp in their applications multivalent.
Die erfindungsgemäße Leuchte ermöglicht auch in eleganter Weise ein Dimmen, indem der Schaltpositionsgeber mit einem die Leuchtstärke der LED einstellenden ersten Eingabemittel versehen ist, das mit der Schaltelektronik verbunden ist, die die Leuchtstärke der LED entsprechend der Stellung des Eingabemittels steuernd ausgebildet ist. So kann beispielsweise der Ring nicht nur längsverschieblich sondern auch drehbar sein und die Drehbewegung für die Einstellung der Leuchtstärke ausgewertet werden.The luminaire according to the invention also makes it possible to dimming in an elegant way by providing the switching position generator with a first input means adjusting the luminous intensity of the LED, which is connected to the switching electronics which control the luminous intensity of the LED according to the position of the input means. For example, the ring can not only be longitudinally displaceable but also rotatable and the rotational movement can be evaluated for setting the luminosity.
Ein Drehbewegung des Ringes könnte aber auch für die Einstellung bestimmter Leuchtrichtungen der LED, etwa durch Kippen der LED-Matrix oder für die Auswahl bestimmter Reihen von LED, also nebeneinander liegender LED mehrerer Zeilen, verwendet werden.However, a rotational movement of the ring could also be used for the setting of certain light directions of the LED, for example by tilting the LED matrix or for the selection of certain rows of LEDs, so adjacent LED multiple lines.
Durch die Erfindung wird es auch möglich, die Leuchtfarben der Leuchte dem Einsatzzweck oder dem Empfinden des Nutzers anzupassen, indem die LED als Mehrfarb-LED ausgebildet sind und der Schaltpositionsgeber mit einem die Leuchtfarbe der LED einstellenden zweiten Eingabemittel versehen ist, das mit der Schaltelektronik verbunden ist, die die Leuchtfarbe der LED entsprechend der Stellung des Eingabemittels steuernd ausgebildet ist.The invention also makes it possible to adapt the luminescent colors of the luminaire to the intended use or the user's sense, in that the LEDs are designed as multicolor LEDs and the switching position generator is provided with a second input means which adjusts the luminescent color of the LED and which is connected to the switching electronics is, which is designed to control the luminous color of the LED according to the position of the input means.
Die Erfindung soll nachfolgend anhand verschiedener Ausführungsbeispiele erläutert werden. In den zugehörigen Zeichnungen zeigt
- Fig. 1
- eine perspektivische Teilansicht einer erfindungsgemäßen Arbeitsplatzleuchte
- Fig. 2
- eine Darstellung der funktionalen Module einer erfindungsgemäßen Leuchte,
- Fig. 3
- eine Schaltungsanordnung der funktionalen Module,
- Fig. 4
- Draufsicht auf eine LED-Matrix,
- Fig. 5
- ein perspektivischer Teilschnitt mit der Darstellung der Gestaltung eines Schaltpositionsgebers mit einem längsverschiebbaren Stellmittel,
- Fig. 6
- Tabelle der durch einen Reed-Kontakt bewirkten Schaltzustände,
- Fig. 7
- eine schematische Darstellung einer Arbeitsplatzleuchte mit veränderlichen Leuchtbereichen in einem Anfangszustand,
- Fig. 8
- eine schematische Darstellung einer Arbeitsplatzleuchte mit veränderlichen Leuchtbereichen, mit verschiedenen Leuchtbereichen,
- Fig. 9
- eine Darstellung des Funktionsprinzips eines magnetostriktiven Sensors,
- Fig. 10
- die Darstellung eines Schaltpositionsgebers in Form eines berührungssensitiven Eingabefeldes und
- Fig. 11
- die Prinzipdarstellung einer Fernsteuerung einer erfindungsgemäßen Leuchte.
- Fig. 1
- a partial perspective view of a workplace lamp according to the invention
- Fig. 2
- a representation of the functional modules of a lamp according to the invention,
- Fig. 3
- a circuit arrangement of the functional modules,
- Fig. 4
- Top view of an LED matrix,
- Fig. 5
- a perspective partial section showing the design of a Schaltpositionsgebers with a longitudinally displaceable actuating means,
- Fig. 6
- Table of the switching states caused by a reed contact,
- Fig. 7
- a schematic representation of a task lamp with variable lighting areas in an initial state,
- Fig. 8
- a schematic representation of a workplace lamp with variable lighting areas, with different lighting areas,
- Fig. 9
- a representation of the principle of operation of a magnetostrictive sensor,
- Fig. 10
- the representation of a Schaltpositionsgebers in the form of a touch-sensitive input field and
- Fig. 11
- the schematic diagram of a remote control of a lamp according to the invention.
Eine erfindungsgemäße Leuchte gemäß
Funktional gesehen, soll das Licht hierbei durch Berühren bzw. Ziehen von Ringen in gewünschte Arbeitsbereiche 5 gerichtet werden können.Functionally, the light should be able to be directed by touching or pulling rings into desired working areas 5.
Wie in
Reed-Kontakte 8, bestehend aus einer Kontaktfeder und einem Magnetanker, werden meist unter Vakuum aber auch unter Schutzgas in einen Glaskolben eingeschmolzen. Der Kontaktschluss entsteht durch ein von außen angelegtes Magnetfeld, typischerweise durch Dauermagneten oder stromdurchflossene Spulen.Reed contacts 8, consisting of a contact spring and a magnet armature, are usually melted under vacuum but also under inert gas in a glass flask. Of the Contact closure is caused by an externally applied magnetic field, typically by permanent magnets or current-carrying coils.
Wird ein magnetfelderzeugendes Bauteil in die Nähe eines Reed-Kontaktes 8 gebracht, ziehen sich Magnetanker sowie Kontaktfeder zusammen und schließen den Kontakt(Tasterprinzip). Wird die Entfernung vergrößert, reduziert sich die magnetische Feldstärke, und der Reed-Kontakt 8 öffnet. Bei der Arbeitsplatzleuchte 1 wurden die Reed-Kontakte 8 auf einer senkrecht zu den Leuchtzeilen stehenden Leiterplatte 11 angebracht, wie dies in
Wie in
Die Reed - Kontakte 8 arbeiten wie Taster. Wird ein Stellmittel 14 mit Magnet an einem Reed-Kontakt 8 vorbeigeführt, schaltet der Kontakt. Die dabei entstehende "Low-High" Flanke muss erfasst und anschließend ausgewertet werden. Hierzu eignen sich T-Flip-Flops, weil sich mit jeder "Low-High" Flanke an ihrem Eingang das Ausgangssignal ändert, wie dies in
Wie in
Wird der erste Ring 15 entlang des Gehäuses 12 gezogen, soll ihm das Licht gleitend folgen. Wird anschließend der zweite Ring 16 hinterher gezogen, erlischt das Licht wieder. Es ist somit möglich, definiert gewünschte Arbeitsbereiche 5 unterhalb der Arbeitsplatzleuchte 1 zu beleuchten bzw. unbeleuchtet zu lassen.If the
Es ist auch möglich, die Leuchtbereiche 2 durch Drehen der Ringe 15 bis 18 zu beeinflussen. Dabei stellt eine mögliche, weitere Funktion die Dimmbarkeit und Vor- bzw. Rückausrichtung der jeweiligen Lichtbereiche dar. Zunächst müssen diese Bereiche durch das Aufziehen der Ringe 15 bis 18 definiert werden.It is also possible to influence the
Folgendes Funktionsprinzip ist hierbei ermöglicht: Wird der erste Ring 15 in mathematisch positivem Sinn gedreht, lässt sich so die Intensität des Lichtes verstellen. Auf elektrotechnischer Ebene muss hierzu die Basis-Emitter-Spannung am Ansteuertransistor 19 beeinflusst werden. Eine mögliche Beschaltung des Festspannungsstellers ist die Schaltung in
Eine weiterer Ausführungsform ist die Veränderung des gesamten Lichtkegels. Dabei dient der zweite Ring 16 des jeweiligen Lichtbereiches als Funktionsschalter. Mit diesem wäre es möglich, alle LEDs 20 aus dem definierten Lichtbereich längs der Arbeitsplatzleuchte 1 ausbeziehungsweise einzuschalten. Abhängig von der jeweiligen Drehrichtung kann die Reihenfolge der zuschaltenden Längszeilen bestimmt werden.Another embodiment is the change of the entire light cone. In this case, the
Anstelle der beschriebenen Reed-Kontakte ist es auch möglich, die Position des Stellmittels 14, welche hier auch wieder mit Magneten versehen ist, mittels magnetoristriktiver Sensoren festzustellen. In
Magnetostriktive Wegaufnehmer sind Sensoren, die nach dem Prinzip der Magnetostriktion arbeiten. Der Sensor besteht aus einem druckfesten Messstab, der zum Beispiel in eine gebohrte Kolbenstange passt, sowie einem ringförmigen Positionsgeber (Permanentmagnet), welcher am Stabende montiert wird.Magnetostrictive transducers are sensors that operate on the principle of magnetostriction. The sensor consists of a pressure-resistant measuring rod, which fits, for example, in a drilled piston rod, as well as an annular position sensor (permanent magnet), which is mounted at the end of the rod.
Der Messvorgang wird bei magnetostriktiven Sensoren durch einen kurzen Stromimpuls ausgelöst, der um den Wellenleiter ein zirkulares Magnetfeld erzeugt. Senkrecht dazu verlaufen die Feldlinien des Positionsgebers, der im Wellenleiter die Messposition markiert. An der Überlagerungsstelle der beiden Magnetfelder entsteht im Wellenleiter eine elastische Verformung, die Magnetostriktion. Diese Verformung breitet sich im Wellenleiter nach beiden Seiten mit einer Geschwindigkeit von etwa 2800ms aus. An einem Ende des Wellenleiters wird die Torsionswelle in ein elektrisches Signal umgesetzt, am anderen gedämpft, sodass es zu keinen Überlagerungen bei nachfolgenden Messungen kommt. Ein Mikrocontroller errechnet die Laufzeit vom Entstehungsort bis zum Signalwandler.The measurement process is triggered by a short current pulse in magnetostrictive sensors, which generates a circular magnetic field around the waveguide. The field lines of the position transmitter, which marks the measuring position in the waveguide, run perpendicular to this. At the superposition of the two magnetic fields in the waveguide creates an elastic deformation, the magnetostriction. This deformation propagates in the waveguide on both sides at a speed of about 2800ms. At one end of the waveguide, the torsion wave is converted into an electrical signal, attenuated at the other, so that there are no overlaps in subsequent measurements. A microcontroller calculates the runtime from the point of origin to the signal converter.
Die genaue Ortsbestimmung des Positionsgebers ergibt sich also durch eine Laufzeitmessung, bei der die Position des Magneten des Positionsgebers aus der Zeit zwischen dem Start des Stromimpulses und dem Eintreffen des elektrischen Antwortsignals, der in einem Torsionswandler detektierten Körperschallwelle, bestimmt wird.The exact location of the position sensor thus results from a transit time measurement, in which the position of the magnet of the position sensor from the time between the start of the current pulse and the arrival of the electrical response signal, the detected in a torsional transducer structure-borne sound wave is determined.
Die Laufzeit vom Entstehungsort bis zum Signalwandler ist direkt proportional zum Abstand zwischen Positionsgeber und Signalwandler. Dieses Prinzip ermöglicht eine berührungslose, verschleißfreie absolute Wegmessung.The transit time from the point of origin to the signal converter is directly proportional to the distance between the position sensor and the signal converter. This principle enables a non-contact, wear-free absolute position measurement.
Gemäß der Darstellung
- 11
- ArbeitsplatzleuchteWorkplace light
- 22
- beleuchteter Leuchtbereichilluminated light area
- 33
- unbeleuchteter Leuchtbereichunlit illuminated area
- 44
- SchaltpositionsgeberSwitching position sensor
- 55
- ArbeitsbereichWorkspace
- 66
- LED-ZeileLED line
- 77
- Positionssensorposition sensor
- 88th
- Reed-KontaktReed contact
- 99
- Längserstreckunglongitudinal extension
- 1010
- Logikbausteinlogic module
- 1111
- Leiterplattecircuit board
- 1212
- Gehäusecasing
- 1313
- Taschebag
- 1414
- Stellmittelactuating means
- 1515
- erster Ringfirst ring
- 1616
- zweiter Ringsecond ring
- 1717
- dritter Ringthird ring
- 1818
- vierter Ringfourth ring
- 1919
- Ansteuertransistordrive transistor
- 2020
- LEDLED
- 2121
- berührungssensitives Eingabefeldtouch-sensitive input field
- 2222
- FernsteuerungRemote control
- 2323
- Empfangseinheitreceiver unit
- 2424
- Drehgeberencoders
Claims (18)
Applications Claiming Priority (2)
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DE102008026664 | 2008-06-04 | ||
DE102009012279 | 2009-02-26 |
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EP2131627A1 true EP2131627A1 (en) | 2009-12-09 |
EP2131627B1 EP2131627B1 (en) | 2013-09-18 |
Family
ID=40940655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09007424.6A Not-in-force EP2131627B1 (en) | 2008-06-04 | 2009-06-04 | Lamp |
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EP (1) | EP2131627B1 (en) |
DK (1) | DK2131627T3 (en) |
ES (1) | ES2440274T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3021641A1 (en) * | 2014-11-12 | 2016-05-18 | Electrolux Appliances Aktiebolag | Kitchen unit provided with a lighting system |
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- 2009-06-04 EP EP09007424.6A patent/EP2131627B1/en not_active Not-in-force
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- 2009-06-04 ES ES09007424.6T patent/ES2440274T3/en active Active
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Also Published As
Publication number | Publication date |
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DK2131627T3 (en) | 2014-01-13 |
ES2440274T3 (en) | 2014-01-28 |
EP2131627B1 (en) | 2013-09-18 |
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