EP0808081A1 - Beleuchtungseinrichtung mit selbsttätiger Umschaltung - Google Patents

Beleuchtungseinrichtung mit selbsttätiger Umschaltung Download PDF

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Publication number
EP0808081A1
EP0808081A1 EP96203162A EP96203162A EP0808081A1 EP 0808081 A1 EP0808081 A1 EP 0808081A1 EP 96203162 A EP96203162 A EP 96203162A EP 96203162 A EP96203162 A EP 96203162A EP 0808081 A1 EP0808081 A1 EP 0808081A1
Authority
EP
European Patent Office
Prior art keywords
lighting device
television set
lamp
switch
switched
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.)
Granted
Application number
EP96203162A
Other languages
English (en)
French (fr)
Other versions
EP0808081B1 (de
Inventor
Gian Pietro Beghelli
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.)
Beghelli SpA
Original Assignee
Beghelli 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 Beghelli SRL filed Critical Beghelli SRL
Publication of EP0808081A1 publication Critical patent/EP0808081A1/de
Application granted granted Critical
Publication of EP0808081B1 publication Critical patent/EP0808081B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • H05B47/105—Controlling the light source in response to determined parameters

Definitions

  • This invention relates to a lighting device of automatic switch-on and switch-off type.
  • Interior lighting devices and lamps of various types and shapes are known, for location on a television set, on large or small tables, on furniture or directly on the floor (standard lamps) to illuminate the environment in which a television set is viewed, this viewing being notably more pleasant in a slightly illuminated room.
  • an indirect suffused light formed to reduce viewing fatigue due to excessive contrast between the screen brightness and the darkness of the environment, results in clearer and more comfortable viewing of television programs compared with direct intense lighting.
  • lamps of the aforesaid type have to be controlled manually by the user while viewing the television set, in the sense that they have to be switched on by a switch located along the feed cable or by remote control, when the external light is insufficient to illuminate the environment or when the same external light creates annoying reflections and has to be shut out.
  • An object of the present invention is to provide a lighting device with automatic switch-on which obviates the aforesaid drawbacks by enabling a lamp to be automatically switched on following the switching-on of the television set, and be automatically switched off when the television set itself is switched off.
  • a further object of the present invention is to provide a lighting device which allows the lamp to be manually switched on independently of the state of operation of the television set and which prevents automatic lamp switch-on when the illumination in the environment in which the television set is installed is sufficient.
  • a further object of the invention is to provide a lighting device of automatic switch-on and switch-off type which is of simple and economical construction, without having to use complicated techniques or costly raw materials.
  • the lighting device of the present invention is suitable for positioning on any television set and is simply connected to the 230 volt a.c. mains by a feed cable with a standard plug, with which it is provided.
  • It also comprises a lamp of low light intensity, which illuminates the environment in which it is located with indirect suffused light.
  • the intensity, the spectrum and the radiation diagram of the lamp have been carefully chosen to illuminate the environment in which the television set is located such as to achieve a reduction in viewing fatigue when viewing television programs.
  • the lighting device of the invention can be inserted into the television set, there being provided in the cabinet of the television set an aperture of geometrical dimensions substantially equal to or slightly greater than the geometrical dimensions of the device lamp, so that the light is emitted from the bottom upwards into the surrounding environment.
  • the lamp is switched on automatically following television set switch-on and is switched off automatically when the television set is switched off. Specifically, the lamp is switched on when the television set passes from the stand-by state (when the screen is off and the television set receives only digital signals from the remote controller) to the normal operating state (in which the screen is on and the television set operates normally to receive programs). The lamp is switched off automatically when the television set is switched to the stand-by state by the remote controller, or when the television set is switched off completely by the main switch, which in this manner suspends current delivery.
  • the lighting device is provided with a pushbutton for manual switch-on and switch-off, a very low intensity light for night illumination, and finally an environmental light sensor which prevents automatic lamp switch-on when the environment in which the television set is installed is sufficiently illuminated.
  • the reference numeral 10 indicates overall a lighting device of automatic switch-on and switch-off type according to the present invention
  • 60 indicates at least one low or medium light-intensity lamp (possibly positionable in different seats, preferably on the rear of the device 10), which provides suffused light to illuminate the environment in which a television set 20 is located such as to reduce viewing fatigue when viewing television programs, by virtue of a carefully chosen intensity, emission spectrum and diffused electromagnetic radiation diagram.
  • the reference numeral 42 indicates a feed cable for the lighting device 10, enabling the device 10 to be connected to the 230 volt a.c. mains supply by the plug 50, 40 indicates a pushbutton for manually switching-on the lamp 60, and 90 indicates at least one seat in which a very low intensity light 90A can be located for night illumination.
  • the seat 90 can be provided either on the front of the device 10 or on the rear, within the housing in which the lamp 60 is located.
  • the said light 90A provides very low-level lighting to illuminate the darkness of the room in which the device 10 is installed, to allow movement within this room during the night if arriving from other poorly lit rooms, without having to switch on the main room light.
  • the reference numeral 70 indicates an environmental light sensor, which can be provided on the front of the device 10 in order to prevent automatic switch-on of the lamp 60 during the day, when the room in which the device 10 is installed is strongly illuminated.
  • the reference numeral 41 indicates the television screen
  • 52 indicates the feed cable of the television set 20
  • 51 indicates the plug by which said television set 20 is connected to the electricity mains.
  • Figures 3, 4 and 5 relate to a lighting device 10 according to the present invention, of inductive coupling type.
  • the device in question is provided with an electronic circuit which controls the switching-on and switching-off of the lamp 60 on the basis of information transmitted by an inductive sensor, such as a pick-up coil 11, possibly in the form of a printed circuit 32, which intercepts the electromagnetic field generated by the electronic beam deflection coils mounted on the cathode ray tube of the television set 20.
  • an inductive sensor such as a pick-up coil 11
  • a printed circuit 32 which intercepts the electromagnetic field generated by the electronic beam deflection coils mounted on the cathode ray tube of the television set 20.
  • the reference numerals 12, 112 indicate two amplification blocks for a determined frequency signal, each connected to an electronic threshold circuit for signal detection, 15, 115 indicate two signal logic processing circuits, 18, 118, 128 indicate three electronic driver circuit blocks for switching-on and/or switching-off the lamp 60 and the night light 90A, and 13, 13A, 13B indicate three circuit blocks for powering the device 10.
  • 111 indicates a transformer block for 50 Hz frequency current
  • 211 indicates an infrared receiver apparatus of known type.
  • the dashed lines on the block diagrams originate from the power circuit blocks 13, 13A, 13B and indicate the various blocks which are powered by the electricity mains supply.
  • the reference numeral 32A indicates a plug to be inserted into the electricity supply mains
  • 31 indicates a socket for receiving the plug 51 of the television set
  • 52D indicates one of the two supply wires of the television set
  • 52B indicates the other wire
  • 42A indicates a multicore feed cable for the device 10.
  • the lighting device 10 of the present invention is provided with an electronic circuit controlling the switching-on and switching-off of the lamp 60 in relation to the switching on and off of the television set 20 and in relation to the illumination of the room in which the television set is located.
  • Said electronic circuit comprises an inductive sensor or a microcontroller, which are able to check whether the television set 20 is switched on or not.
  • An inductive sensor can hence be used to pick up the electromagnetic field generated by the electronic beam deflection coils, which are mounted on the cathode ray tube of the television set 20.
  • the operating state of the television set can be distinguished from its stand-by state (when the cathode ray tube is deactivated) and in this manner to control the switching-on of the lamp 60 (device with television set switch-on sensor of inductive coupling type).
  • an inductive sensor can be used in the electronic circuit controlling operation of the lamp 60, to measure the 50 Hz feed current to the television set 20 so as to automatically switch the lamp 60 on when the current consumption exceeds a predetermined threshold.
  • the television set power consumption from the supply mains depends mainly on the power consumption of the cathode ray tube, it is easy to distinguish the operating state of the television set by monitoring the 50 Hz feed current (device with television set switch-on sensor based on the absorbed current of the television set).
  • the electronic control circuit for the lighting device 10 of the present invention can comprise a microcontroller which controls the switching-on and switching-off of the lamp 60 by analyzing the codes which the infrared remote controller of the television set 20 feeds to a receiver positioned on the television set, when the user activates or deactivates the cathode ray tube.
  • the electronic circuit also comprises an infrared receiver which picks up the signal fed by the remote controller to the television set (device with television set switch-on sensor based on the reception of codes transmitted by the television set remote controller).
  • the lighting device of the invention can be located within the television cabinet so that the light originating from the lamp diffuses into the surrounding environment, starting from the interior of the television set to the rear of the screen.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Massaging Devices (AREA)
EP96203162A 1996-05-15 1996-11-12 Beleuchtungseinrichtung mit selbsttätiger Umschaltung Expired - Lifetime EP0808081B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000978A IT1283015B1 (it) 1996-05-15 1996-05-15 Dispositivo di illuminazione ad accensione e spegnimento automatici
ITMI960978 1996-05-15

Publications (2)

Publication Number Publication Date
EP0808081A1 true EP0808081A1 (de) 1997-11-19
EP0808081B1 EP0808081B1 (de) 2003-01-15

Family

ID=11374267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96203162A Expired - Lifetime EP0808081B1 (de) 1996-05-15 1996-11-12 Beleuchtungseinrichtung mit selbsttätiger Umschaltung

Country Status (4)

Country Link
EP (1) EP0808081B1 (de)
AT (1) ATE231323T1 (de)
DE (1) DE69625800D1 (de)
IT (1) IT1283015B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012003257A1 (de) * 2012-02-21 2013-08-22 Globaltronics Gmbh & Co. Kg Videowiedergabegerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206951A1 (de) * 1982-02-26 1983-09-15 Heinz-Josef 4403 Senden Hano Schaltungsanordnung fuer fernsehleuchten
EP0091885A2 (de) * 1982-02-26 1983-10-19 Onofrio Flora Aufgehängtes Beleuchtungs- und Fernsehgerät
DE3629593A1 (de) * 1985-09-03 1987-03-05 Elmar Dipl Ing Ott Beleuchtungseinrichtung mit einer selbsttaetig ein- und ausschaltbaren lichtquelle
GB2238896A (en) * 1989-11-03 1991-06-12 Sure Right Webb Ltd Light switch
EP0573932A2 (de) * 1992-06-12 1993-12-15 SELECO S.p.A. Fernsehgerät mit einer Lampe, die mit einem Wechselstrom variabler Frequenz gespeist wird
CH683478A5 (de) * 1992-04-03 1994-03-15 Knobel Lichttech Verfahren zum selbsttätigen Ein- und Ausschalten von Lichtquellen in einem Raum sowie Schaltanordnung zu dessen Durchführung.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206951A1 (de) * 1982-02-26 1983-09-15 Heinz-Josef 4403 Senden Hano Schaltungsanordnung fuer fernsehleuchten
EP0091885A2 (de) * 1982-02-26 1983-10-19 Onofrio Flora Aufgehängtes Beleuchtungs- und Fernsehgerät
DE3629593A1 (de) * 1985-09-03 1987-03-05 Elmar Dipl Ing Ott Beleuchtungseinrichtung mit einer selbsttaetig ein- und ausschaltbaren lichtquelle
GB2238896A (en) * 1989-11-03 1991-06-12 Sure Right Webb Ltd Light switch
CH683478A5 (de) * 1992-04-03 1994-03-15 Knobel Lichttech Verfahren zum selbsttätigen Ein- und Ausschalten von Lichtquellen in einem Raum sowie Schaltanordnung zu dessen Durchführung.
EP0573932A2 (de) * 1992-06-12 1993-12-15 SELECO S.p.A. Fernsehgerät mit einer Lampe, die mit einem Wechselstrom variabler Frequenz gespeist wird

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012003257A1 (de) * 2012-02-21 2013-08-22 Globaltronics Gmbh & Co. Kg Videowiedergabegerät

Also Published As

Publication number Publication date
ITMI960978A0 (de) 1996-05-15
ITMI960978A1 (it) 1997-11-15
ATE231323T1 (de) 2003-02-15
IT1283015B1 (it) 1998-04-03
DE69625800D1 (de) 2003-02-20
EP0808081B1 (de) 2003-01-15

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