EP2241804A1 - Beleuchtungsanordnung - Google Patents

Beleuchtungsanordnung Download PDF

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Publication number
EP2241804A1
EP2241804A1 EP10160093A EP10160093A EP2241804A1 EP 2241804 A1 EP2241804 A1 EP 2241804A1 EP 10160093 A EP10160093 A EP 10160093A EP 10160093 A EP10160093 A EP 10160093A EP 2241804 A1 EP2241804 A1 EP 2241804A1
Authority
EP
European Patent Office
Prior art keywords
lighting
light
electric
distribution element
feed
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.)
Withdrawn
Application number
EP10160093A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Tanzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Album Srl
Original Assignee
Album Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Album Srl filed Critical Album Srl
Publication of EP2241804A1 publication Critical patent/EP2241804A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/155—Coordinated control of two or more light sources
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
    • 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 present invention concerns a lighting device used in domestic, industrial and commercial spaces such as offices, shops, restaurants, gyms or others.
  • the lighting device comprises a plurality of lighting bodies, preferably, but not only, of the LED type, monochromatic or with a chromatic variation.
  • Lighting devices comprising a plurality of lighting bodies, each of which is provided with a source of light such as for example a halogen lamp, an incandescent lamp or other.
  • the known lighting device also comprises at least an element for the distribution of electric energy, advantageously associated with a light point, mounted for example on a wall or a ceiling in correspondence with a predetermined seating provided for the delivery of electric energy from an electric plant.
  • the distribution element is suitable to distribute electric energy to each of said lighting bodies by means of a predetermined electric connection which provides a plurality of cables, exiting substantially radially from the distribution element.
  • Each electric cable is suitable to feed at least a predetermined lighting body.
  • the electric connection between the various lighting bodies is obtained substantially by means of a parallel connection between the cables made in correspondence with the distribution element, thus providing the switching on, the switching off and/or the simultaneous variation in light intensity of all the bodies of the known lighting device.
  • the electric connection is made by disposing each lighting body in a desired position, corresponding to a predetermined zone in the space to be lit, using the same electric cables as suspension members, assembling them in sight in a wall and/or a ceiling development and/or constraining them at predetermined suspension points. In this way it is possible to position the lighting bodies inside a space to be lit according to a desired disposition, allowing an effective lighting where it is actually desired and without making any modifications to the pre-existing electric plant.
  • One disadvantage of the known lighting device is that it is not possible to modify individually the intensity of the stream of light emitted by each individual lighting body.
  • One purpose of the present invention is to make a lighting device which allows to make individual modifications of the stream of light intensity emitted by each individual lighting body even when the corresponding sources of light are of the LED type.
  • Another purpose of the present invention is to make a lighting device which allows to maintain constant the intensity of the stream of light emitted by each individual lighting body even for long intervals of functioning.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a lighting device can be used to light one or more spaces.
  • the lighting device comprises a plurality of lighting bodies, each provided with at least a source of light, and suitable to light a predetermined zone of said one or more spaces.
  • the lighting device also comprises an element for the distribution of electric energy, associated with a predetermined delivery seating of electric energy of the electric plant of the space to be lit.
  • the distribution element is suitable to distribute electric energy to each of the lighting bodies by means of predetermined electric connections exiting from the distribution element toward each lighting body.
  • the electric connections are used, in one embodiment of the invention, as members to assemble the lighting bodies to walls and/or ceilings of said one or more spaces so that each lighting body connected to said distribution element is associated with a corresponding zone to be lit.
  • the at least one distribution element has its own electric feed means, and at least a microprocessor electronic card.
  • the electric feed means are suitable to feed said lighting bodies independently from each other, so that each of them can be activated in a desired functioning condition to light said relative zone, on the basis of the programming which can be carried out on the microprocessor card.
  • the feed means are suitable to selectively adjust, independently from each other, the amount of electric energy which feeds each lighting body connected to said distribution element, and, therefore, the stream of light emitted by the associated sources of light.
  • At least some of the sources of light are lamps of the LED type.
  • At least some of said LED lamps are of the RGB (Red, Green, Blue) and/or AWB (Amber, White, Blue) type.
  • the distribution element also comprises sensor means, operatively associated with the feed means and with the electronic microprocessor card, able to detect, directly or indirectly, at least some of the functioning electrical quantities of each lighting body so as to allow to regulate the corresponding electric feed energy and substantially to maintain the stream of light constant over time at a predetermined emission value corresponding to a set functioning condition.
  • the lighting device comprises remote command means, such as one or more remote controls or radio controls suitable to selectively activate the feed means.
  • a lighting device 10 can be used to light one or more spaces 20, for example in domestic or commercial spaces, in shops, restaurants, gyms or other, or in industrial contexts.
  • the lighting device 10 comprises (figs. 1A-1D, 2 , 3 and 5 ) a distribution element, or plate, 16, a plurality of lighting bodies 24, each provided with one or more sources of light, in this case LED elements 26, and an electronic card 30 of the microprocessor type, for light management purposes, incorporated into the plate 16, and to which the lighting bodies 24 are indirectly connected.
  • the device 10 also comprises a remote command device, in this case a remote control 52 in radiofrequency, suitable to cooperate with the electronic card 30 to command the switching on, switching off and/or the adjustment of the light intensity of each LED element 26 as will be described in more detail hereafter.
  • the LED element or elements 26 can be both monochromatic and with color variation, such as a LED unit with a set of three colors RGB or AWB.
  • the plate 16 circular in shape, comprises a box-like containment body inside of which the electronic card 30 is housed.
  • the plate 16 is suitable to be mounted, in a known manner, on a wall or on the ceiling 12 of the space 20 to be lit, substantially in correspondence with a seating for the delivery of electric tension of the electric lighting circuit, that is, a seating in which a corresponding wall or ceiling light point is substantially provided.
  • the device 10 is normally fed at the alternating tension of the electric circuit and can be switched on or off by means of a corresponding group of switches and/or circuit breakers, not shown in the drawings, which are part of the lighting plant.
  • the cables 18 are also used as attachment members to attach the lighting bodies 24 to a wall and/or ceiling.
  • each cable 18 is laid and/or attached to the wall and/or ceiling and/or partially constrained at predetermined attachment points of the ceiling 12, by means of attachment pawls 28 or other.
  • each lighting body 24 inside the space 20 it is possible to position, in a desired way, each lighting body 24 inside the space 20 to be lit, in order to concentrate the relative stream of light onto a predetermined area 22, such as the surface of a table, or work top or other.
  • a predetermined area 22 such as the surface of a table, or work top or other.
  • the electronic card 30 of the plate 16 ( fig. 4 ) comprises a control and processing unit, in this case a microprocessor unit 32 of the known type, for example 8 or 16 bit, suitable to command the activation, by means of corresponding command ports 34, of a plurality of tension regulators 40, or power drivers.
  • Each regulator 40 is in turn suitable, as will be explained hereafter, to directly feed, at a desired feeding tension, a corresponding lighting body 24.
  • each tension regulator 40 is able to deliver to each lighting body 24, that is to the relative sources 26, a variable current, depending on the intensity of light desired, having a maximum value of about 800mA with an exit tension of about 24V.
  • the card 30 is also provided with a reference source 42 of direct tension, having a tension value suitable for the electric feed of the lighting bodies 24.
  • the tension value is typically, for lighting elements with power LED, comprised in a range of about 24V.
  • the tension source 42 can be part of a unit for the transformation and rectification of the alternate feed tension of the electric power supply of a known type, such as a transformer connected to a tension rectification bridge, from which the feed tension of the microprocessor unit 32 can also be derived.
  • the feed source 42 is electrically connected to each of the tension regulators 40, in this case to a corresponding reference input (not shown), by means of a tension reference line 42a so as to supply to each regulator 40 a reference direct tension.
  • Each regulator 40 is electrically connected by means of a command line 34a to a command port 34 of the microprocessor card 30 and at exit, by means of a corresponding feed line 40a, to the associated lighting body 24 so as to feed it with tension and current with the desired value and intensity.
  • command ports 34 are independently commandable, for example according to a square wave pulse width modulation of the Pulse Width Modulation type (PWM), so as to drive each regulator 40 at a desired frequency,
  • PWM Pulse Width Modulation type
  • This allows to feed each LED element 26 with a predetermined feed current, substantially at the same frequency as the PWM output of the command port 34, so as to emit a corresponding stream of light of the desired intensity.
  • the electronic card 30 also comprises a circuit to detect the electric power and development of the electrical quantities, for example tension or current, actually absorbed by each lighting body 24, that is, of the associated LED element 26.
  • the electrical quantities are picked up in correspondence with a pick up point P of the feed line 40a and passed through a corresponding conditioning circuit 44 in order to condition the corresponding physical levels to a value compatible with those of the microprocessor unit 32.
  • the exit of each conditioning circuit 44 is connected, through a feedback line 44a, to a corresponding detection port 36 of the microprocessor unit 32, for example provided with a square wave input PWM detector.
  • the microprocessor unit 32 is able to regulate, that is, to keep the electrical quantities feeding each lighting body 24 substantially constant over time. This in turn ensures the emission of a stream of light that is constant over time, based both on possible settings of a user and also according to possible variations in the LEDs 26, due for example to thermal drift or other, which can cause a reduction in the stream of light, light fluttering phenomena, or unwanted changes in the color temperature of the LEDs.
  • the plate 16 is also advantageously provided with a terminal board 29 ( figs. 4 and 5 ) having connection terminals 29a, two for each lighting body 24, electrically connected to a corresponding feed line 40a and suitable for the stable attachment of a relative feed cable 18.
  • the plate 16 is also provided with cable clips 19, disposed substantially equally spaced on the external edge of the plate 16 and suitable to stably clamp each cable 18 so as to prevent the terminals 29a from possibly coming out during the assembly of the device 10. This allows to easily connect each lighting body 24 to the corresponding feed line 40a during the assembly of the device 10.
  • the electronic card 30 is also provided with a radiofrequency interface 50 of a known type, electrically connected to a remote control port 38.
  • the radiofrequency interface 50 is suitable to cooperate with the remote control 52 to receive different radiofrequency signals generated by the remote control 52 according to the specific key 52a that has been pushed.
  • the radiofrequency signals are converted by the interface 50 into corresponding electric signals that are interpreted by the microprocessor unit 32 to activate the specific regulator 40.
  • the frequency of communication of the radiofrequency signals is around 488 MHz. It is understood that the device 10 can be provided with two or more remote controls 52 to allow the device 10 to be managed by several users.
  • the electronic card also comprises a multi switch 60, of the rotary dip switch type, directly connected in a known manner to one or more ports of the microprocessor unit 32, and suitable to be used to configure the device 10 dynamically, that is, to create a functional correspondence between each key 52a of the remote control 52 and a corresponding lighting body 24. In this way it is possible to univocally identify each lighting body 24, that is, a corresponding area 22, associating it substantially with one or more keys 52a.
  • the device as described heretofore functions as follows.
  • a specific radiofrequency signal is emitted, containing for example a predetermined identification code relating to the specific body 24, and a drive code, that is, a switch on or switch off code or, in the case of prolonged pressure on the key 52a, a code to vary the light intensity of the specific LED element 26.
  • the radiofrequency signal is received by the radiofrequency interface 50 and is subsequently communicated to the microprocessor unit 32.
  • the microprocessor unit 32 enables the corresponding tension regulator 40, piloting the associated command port 34 with a PWM signal having a square wave period that allows to deliver at output from the specific regulator 40 a predetermined electric feed current at a functioning tension that guarantees the emission of a desired stream of light intensity.
  • the microprocessor unit 32 also detects continuously, by means of the detection ports 36, the conditioning circuit 44 and the feedback line 44a, the development of the PWM signals delivered by the corresponding regulator 40. This allows to detect possible variations with respect to the PWM signal generated by the command port 34, that is, variations in the electric feed or dimming quantities of the lighting bodies and therefore indirectly of the light intensity of the specific LED elements 26.
  • the microprocessor unit is able to modify the PWM signals at inlet to the regulators 40 and hence feed each LED element 26 so as to obtain a desired stream of light intensity, substantially stable during functioning.
  • the device 10 can provide to simultaneously switch on, switch off and/or continuously regulate the stream of light intensity of all the lighting bodies 24 controlled by the plate 16, by using specific dedicated keys 52a.
  • the lighting bodies 24 can be grouped together functionally so as to allow them to be switched on or off, or the stream of light intensity varied in a substantially simultaneous manner.
  • auxiliary lighting body 27 is disposed directly on the plate 16.
  • a lamp 27 ( fig. 5 ) of the traditional type or halogen or LED can be mounted directly on the plate 16.
  • he device 10 is also provided with a conveyed waves communication interface that allows, for example, cooperation with an automation plant and thus allows to feed each lighting body 24 according to one or more predefined functioning scenarios.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Polarising Elements (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
EP10160093A 2009-04-17 2010-04-15 Beleuchtungsanordnung Withdrawn EP2241804A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000078A ITUD20090078A1 (it) 2009-04-17 2009-04-17 Dispositivo di illuminazione

Publications (1)

Publication Number Publication Date
EP2241804A1 true EP2241804A1 (de) 2010-10-20

Family

ID=41226305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160093A Withdrawn EP2241804A1 (de) 2009-04-17 2010-04-15 Beleuchtungsanordnung

Country Status (2)

Country Link
EP (1) EP2241804A1 (de)
IT (1) ITUD20090078A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790457A2 (de) * 1996-02-14 1997-08-20 ARTEMIDE S.p.A. Mehrfarbige Beleuchtungseinrichtung für dekorative Raumbeleuchtung
US6655817B2 (en) * 2001-12-10 2003-12-02 Tom Devlin Remote controlled lighting apparatus and method
US20060113927A1 (en) * 2004-12-01 2006-06-01 Bondy Montgomery C Multiple dimmer lighting system
WO2009021544A1 (de) * 2007-08-10 2009-02-19 Osram Gesellschaft mit beschränkter Haftung Leuchte für mindestens eine led und sender zur erzeugung eines funksignals für eine derartige leuchte

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716180A1 (de) * 1997-04-18 1998-10-22 Leonhard Bopp Leuchte
US20070222399A1 (en) * 2004-12-01 2007-09-27 Montgomery Bondy Energy saving extra-low voltage dimmer lighting system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790457A2 (de) * 1996-02-14 1997-08-20 ARTEMIDE S.p.A. Mehrfarbige Beleuchtungseinrichtung für dekorative Raumbeleuchtung
US6655817B2 (en) * 2001-12-10 2003-12-02 Tom Devlin Remote controlled lighting apparatus and method
US20060113927A1 (en) * 2004-12-01 2006-06-01 Bondy Montgomery C Multiple dimmer lighting system
WO2009021544A1 (de) * 2007-08-10 2009-02-19 Osram Gesellschaft mit beschränkter Haftung Leuchte für mindestens eine led und sender zur erzeugung eines funksignals für eine derartige leuchte

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Publication number Publication date
ITUD20090078A1 (it) 2010-10-18

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