WO2015092823A2 - Dispositif adaptateur d'ampoule - Google Patents

Dispositif adaptateur d'ampoule Download PDF

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Publication number
WO2015092823A2
WO2015092823A2 PCT/IT2014/000335 IT2014000335W WO2015092823A2 WO 2015092823 A2 WO2015092823 A2 WO 2015092823A2 IT 2014000335 W IT2014000335 W IT 2014000335W WO 2015092823 A2 WO2015092823 A2 WO 2015092823A2
Authority
WO
WIPO (PCT)
Prior art keywords
emergency
adapter device
battery
bulb
light bulb
Prior art date
Application number
PCT/IT2014/000335
Other languages
English (en)
Other versions
WO2015092823A3 (fr
Inventor
Gian Pietro Beghelli
Original Assignee
Beghelli S.P.A.
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 S.P.A. filed Critical Beghelli S.P.A.
Priority to EP14838818.4A priority Critical patent/EP3084920A2/fr
Publication of WO2015092823A2 publication Critical patent/WO2015092823A2/fr
Publication of WO2015092823A3 publication Critical patent/WO2015092823A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • H01R33/9453—Holders with built-in electrical component for screw type coupling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • F21S9/024—Emergency lighting devices using a supplementary light source for emergency lighting
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • 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
    • H05B47/14—Controlling the light source in response to determined parameters by determining electrical parameters of the light source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the present invention generically relates to a light bulbs adapter device for incandescent, fluorescent electronic compact or LED bulbs.
  • the invention relates to an adapter device for electronic bulbs, which integrates the function of emergency lighting, suitable to be interposed between any bulb and the original bulb holder.
  • Lighting lamps are devices providing a converter to convert electric power into light, an electronic circuit to supply said light source, and electro-mechanical system and a transparent protection housing.
  • Lamps have different shapes on the basis of standardization obtained with technical evolution to build-in possible different light sources; most widespread shapes are the bulb one, with a E27 or E14 screw coupling, created to encapsulate the incandescent filament tungsten, and light tubes with a diameter of 26 mm or 15 mm, born for fluorescent lamps with low pressure indirect emission gas discharge.
  • LED solid state light sources
  • White LED bulbs have spread on the market in order to replace almost any traditional filament source, from traditional bulbs with a tungsten filament to the most modern halogen bulbs.
  • LED bulbs thanks to the greater energy efficiency, are also replacing electronic bulbs, so-called “compact fluorescent", as well as the availability of small batteries allows the integration of the function of emergency power within the new LED bulbs.
  • the object of the present invention is that of providing an adapter device for light bulbs, which, interposed between a normal light bulb and its original holder, allowing transforming it into bulb for emergency lighting.
  • Further object of the invention is to provide a light bulbs adapter device, which is able to carry out the monitoring of the emergency condition with very low energy consumption.
  • the present invention relates to a new adapter for incandescent, fluorescent electronic compact (CFL) or LED bulbs, which integrates the function of emergency lighting and that can be interposed between any bulb and the original holder, with the following functions:
  • the bulb mounted on the adapter device switches on with a full light and simultaneously recharges the emergency battery built-in the adapter device;
  • the bulb remains switched off, but a reduced light built-in the adapter device in an emergency state is switched on.
  • FIG. 1 shows a switching on system of a LT bulb coupled with the adapter device PA according to the present invention, with interruption of the phase L by switch I;
  • - figure 2 shows a switching on system of a LT bulb coupled with the adapter device PA according to the present invention with interruption of the phase L, by switch I, and with emphasises of the parasitic capacitances CPC to other conductors C of the electrical system subjected to phase L potential;
  • - figure 3 shows a switching on system of a LT bulb coupled with the adapter device PA according to the present invention bulb with interruption of neutral N and with switch I;
  • FIG. 4 shows a switching on system of a LT bulb coupled with the adapter device PA according to the present invention with interruption of neutral N, by switch I, and with emphasises of the parasitic capacitances CPN towards ground;
  • FIG. 5 shows a schematic block diagram of a LT bulb to be coupled with the adapter device PA according to the present invention, realised for a threading coupling system;
  • FIG. 6 shows the electric scheme of the light bulbs adapter according to the present invention
  • FIG. 7A, 7B and 8 show a series of perspective views of a first embodiment of the light bulbs adapter according to the present invention
  • FIG. 9A, 9B and 10 show a series of perspective views of a second embodiment of the light bulbs adapter according to the present invention.
  • FIG. 11A, 11B and 11C and 12 show a series of perspective views of a third embodiment of the light bulbs adapter according to the present invention.
  • bulb LT that can be an incandescent, fluorescent electronic compact or LED bulb
  • a threaded seat CN2 of the adapter device PA comprising an emergency ballast A2, connected to the electric coupling T1 of bulb LT, to a series of light sources S2, to a group of batteries B1 and to an electrical connector T2.
  • Emergency ballast A2 built-in the adapter device of bulb holder PA is comprised of elements D1 , D2, D3, LV1 , B1 , C1, CLDE, R1 , R2, R3, R4, R5, Q1 , Q2, LDE1 , LDE2, LDEN, is connected in series to the supply circuit of the outer bulb LT and manages the charge of the battery B1 , using the electric power passing through bulb LT, as well as emergency light sources S2, mainly comprised of the LED assembly LDE1, LDE2 LDEN only aimed at the sole emergency lighting function.
  • Ballast A2 also incorporates a controller device CLDE for managing the emergency function, which analyzes voltage across the power supply terminals of the bulb by identifying the emergency condition and distinguishing it from a condition of the ignition switch I off.
  • CLDE controller device
  • the adapter device or lamp holder PA is able to detect, on the system in which it is installed, a condition of activation of emergency lighting (lack of AC power supply of the system), distinguishing it from the simple opening of the ignition switch I of the bulb LT, opening caused by the normal switching off of bulb LT voluntarily controlled by the user.
  • bulb LT connected on the female output connector CN2
  • battery B1 built-in the Bulb holders PA is recharged.
  • switch I of the circuit opens, bulb LT is turned off as a normal bulb, but emergency circuit continues to monitor the line to detect the presence of power at 230V, 50Hz (or 115V, 60Hz) upstream the switch I.
  • - switch I disconnects phase conductor L in a system in which the two conductors are adjacent to other power lines of the building, that is the typical case of a ceiling or wall lamp directly wired into a civil electrical system, in which conductor L is disconnected from the switch I, but the part of conductor disconnected runs within ducts and electrical conduits close to other conductors connected to L at potential of 230V, 50Hz (or 115V, 60Hz); in this case (enclosed figure 2), with switch I open, measurable voltage at the ends of CN1 is the sum of the AC voltage coupled through the parasitic capacitance of a few pF of the same switch I and the induced voltage by coupling parasitic capacity CPC with the electrical cables adjacent to the disconnected portion, the latter contribution being of higher entity.
  • AC voltage at the ends of CN1 without any load, has values within the range from a few volts to a few tens of volts, as a function of the parasites couplings;
  • bulb holder PA using the emergency monitoring and management circuit CLDE built-in ballast A2 of the same bulb holder PA, which is fed by battery B1 consuming only a fraction of the stored energy, is able to measure the AC voltage remaining at its inlet in order to verify its presence and in this case maintains inhibited the ignition circuits of the emergency lighting sources S2 (emergency LEDs).
  • the bulb holder PA is able to detect its presence and to maintain emergency sources S2 off.
  • Bulb holder PA is so realised that the monitoring circuits of AC power condition upstream I consume a very small part of power present in battery B1 , thus guaranteeing continuity of operation in a monitoring mode with the switch I open for several months without interruption, e.g. consuming half of the power available in 3 months. In this way it is guaranteed the regularity of operation of a light bulb that is turned on at least once every few days (the ignition of the bulb LT is the only moment during which internal battery B1 is recharged).
  • Autonomy of operation of the bulb holder PA under emergency conditions can be set between a minimum of 30 minutes and few hours by suitably adjusting the light intensity of emergency sources S2, that is, by varying the intensity of the piloting current.
  • intensity adjustment may be operated so that initially the brightness is more intense to permit to the user to perceive less the reduction of brightness with respect to the ordinary operation.
  • brightness can be automatically gradually reduced an automatic way so as to maximize duration of battery B1.
  • Emergency circuits are realised, according to the state of the art of emergency lighting, so as to turn off the emergency light sources S2 when voltage of battery B1 falls below a minimum value order not to damage the same battery B1 (minimum interruption function).
  • Bulb LT that can be connected to female connector CN2 at the output of the bulb holder PA can be of any type, within the set power limit the bulb of the lamp holder PA, e.g. equal to 100W.
  • This bulb LT can then be an incandescent, electronic CFL or
  • the operating currents may therefore vary by at least one factor of 10, passing from 450 mArms of a 100W incandescent bulb LT to 30 ⁇ 40 mArms of a 4W bulb electronic LT.
  • current absorbed by LT is an alternating current at mains frequency (50Hz or 60Hz), the intensity of which is proportional to the power absorbed by bulb LT.
  • bulb holder PA is so realised not to introduce significant voltage drop and to ensure proper charging of battery B1 under all possible operating regimes and with all possible types of bulbs LT connected.
  • Emergency ballast A2 is connected in series to the supply circuit of bulb LT, between the central end of the male connection CN1 and central end of female connection CN2. Outer ends or connectors T1 , T2 of male and female connections CN1 and CN2 are connected together.
  • Emergency ballast A2 is then run by supply current of bulb LT, current circulating, for the positive half-wave, within diode D2 and the circuit connected to it (R3, Q2, R5), and, for the negative half-wave, through the diode D1.
  • Battery B1 of the rechargeable type, has a nominal voltage between 3.2V and 4V and can be comprised of a series of three 1.2V nominal elements (of the NiCd or NiMH type), or by a single ion lithium element (in one of several possible chemistries, e.g. with nominal voltages of 3.2V, 3.6V or 3.7V), or by other technological solutions with voltages between 3.2V and 4V.
  • Current limiter Q2, R4, R5 adjusts charging current of battery B1 to vary the conditions imposed on the type of bulb LT connected, while voltage limiter LV1 B1 protects the battery from over-charging conditions.
  • Power or "transil” Zener diode D3 absorbs excessive current pulses that may occur in the ignition transient of bulb LT, especially if the high power incandescent type, or of the electronic type with input capacitors of large value, protecting the battery B1 and charge management circuits.
  • Emergency ballast A2 is driven by the programmable controller CLDE, comprised of a microcontroller M1 with integrated amplifier and analog converter.
  • Controller CLDE is powered directly by battery B1 to which is connected in parallel, measures AC voltage present on the socket of bulb LT by capacitor C1 and consequently pilots emergency LEDs LDE1 , LDE2, LDEN, controlling bipolar transistor Q1.
  • the inlet alternating current passes through D1 and D2, and circulates within outer bulb LT, which is regularly turned on, and current that, for half wave, circulates through D2, charges battery B1.
  • Voltage across battery B1 raises during the charging operation up to a maximum allowable value determined by shunt voltage regulator LV1 , which intervenes shunting the charging current when voltage reaches the set maximum value, e.g. 4, 2V (for lithium-ion batteries), in order to protect the battery B1 from damage due to overcharging.
  • shunt voltage regulator LV1 which intervenes shunting the charging current when voltage reaches the set maximum value, e.g. 4, 2V (for lithium-ion batteries), in order to protect the battery B1 from damage due to overcharging.
  • Voltage drop introduced by battery B1 for this function is negligible for bulb LT connected to the output, since across the battery B1 are ends at most 4.2V are present, which, added to the voltage drop of diode D2 and the voltage drop on base of Q2 (equal to 0.6V + 0.6V), arrives at 5,4V (voltage drop across the resistor R3 is negligible).
  • Controller CLDE correctly powered by battery B1 , measures alternating voltage at the ends of D1 , by capacitor C1 and its own A/D converter, and, verifying the presence of an alternating voltage at the mains frequency with peak to peak amplitude greater than battery voltage, detects presence of mains supply and keeps emergency LEDs LDE1 , LDE2, LDEN turned off, commanding the transistor Q1 turned off.
  • Shunt regulator LV1 is of the type characterized by a negligible current consumption at the nominal working voltage of battery B1.
  • Said regulator LV1 shunting battery B1 regardless of its state at the overcoming of the maximum allowable voltage, advantageously allows operation of bulb LT in an ordinary manner, even if battery B1 aging is no longer able to absorb the charging current.
  • bulb LT maintains the function of normal lighting bulb even in case of complete failure of battery B1.
  • bulb LT In conditions of presence of the mains supply with switch I of supply circuit of bulb holder PA switched off, bulb LT does not receive the power necessary for its operation, current within bulb LT is virtually zero and battery B1 is not recharged.
  • Emergency monitoring and management controller CLDE is powered by battery B1 and its power consumption is very low, being it as an average limited to few tens of ⁇ .
  • microcontroller M1 limits its activities to the switching on periods interspersed with "sleep" periods, with a periodicity of some tens of mS.
  • microcontroller M1 measures the voltage at the ends D1 of capacitor C1 using its A/D converter.
  • microcontroller M1 processes alternating voltage measured across D1 with a digital filter, and compares the measured value with an internal set or pre-calculated threshold, to decide whether or not to turn on the emergency LEDs LDE1 , LDE2 LDEN by piloting transistor Q1.
  • microcontroller M1 If AC signal value at the mains frequency (50 or 60 Hz) at the ends of D1 is greater than the set threshold, microcontroller M1 maintains transistor Q1 , and consequently emergency LEDs LDE1, LDE2 LDEN, turned off.
  • microcontroller M1 turns on transistor Q1 , and consequently the emergency LEDs LDE1 , LDE2, LDEN.
  • the diodes D1 and D2 are interdicted and show high impedance.
  • microcontroller M1 can measure, thanks to its input high impedance amplifier and by C1 , residual voltage at the ends of socket CN1.
  • Inlet of bulb LT behaves in the measurement series circuit as a low impedance bipole at the mains frequency, not by introducing attenuations in the alternating voltage to be measured present on the socket CN1 and read at the ends of D1.
  • switched off bulb has a low resistance value (tens or hundreds of ohms)
  • input circuit has always a capacitor of at least a few tens of nF in parallel to the input, which is part of the noise filter.
  • Determination of the internal threshold of microcontroller M1 can occur in two distinct ways:
  • threshold is set at the factory and cannot be changed during operation to a value determined following experimental setups
  • threshold is automatically determined by the power supply emergency ballast A2 in a self-adaptive way during operation; in this case the bulb holder PA leaves the factory with a predetermined value and automatically adapts to the operating conditions of the system.
  • This operation mode can be useful in managing cases of systems in which the levels of the AC signal measured have a very wide dynamic range (e.g., in the enclosed figure 1 AC input voltage is very low, unlike the case of enclosed figures 2 - 4, for which AC voltage can be much higher).
  • Bulb holders PA with an adaptive threshold works in such a way that, delivered from the factory with a predetermined threshold value, at the first turning off of switch I, microcontroller M1 measures the AC signal on D1 and, based on this measure, defines the following actions:
  • new threshold is redefined equal to 2/3 of the measured value.
  • LEDs dedicated to emergency lighting LDE1 , LDE2 LDEN are advantageously driven by bipolar transistor Q1 , thus minimizing cost and effectiveness of the driving circuit.
  • any switching converter would have a lower efficiency due to the small power involved.
  • Microcontroller M1 is always able to vary the piloting duty cycle of Q1 in order to further modulate intensity of the average current absorbed by battery B1 , in order to optimally exploit available energy.
  • Modulation frequency PWM is in this case of the order of between 20 to 30 KHz.
  • Bulb holder PA also has a function of inhibition of the emergency mode (function called "rest mode"), according to which microcontroller M1 analyzes, by means of AC voltage measured on D1 , a sequence of consecutive ignitions of bulb LT (corresponding the sequence of turning on and off of switch I).
  • rest mode function of inhibition of the emergency mode
  • microcontroller M1 analyzes, by means of AC voltage measured on D1 , a sequence of consecutive ignitions of bulb LT (corresponding the sequence of turning on and off of switch I).
  • microcontroller M1 interprets this sequence as a command for inhibition of emergency lighting.
  • bulb holder PA is thus placed in an inhibition state and, at this point, bulb holder PA can be uninstalled without that it is turned on in an emergency mode, while preserving battery B1.
  • microcontroller M1 is in a very low power consumption condition, preserving to the maximum charge of battery B1.
  • Inhibition function is convenient for transportation of the bulb holder PA by the user and also to preserve the charge of battery B1 after the manufacturing in factory of the same bulb holder PA, prior to the sale and delivery to customers.
  • Figures 7A, 7B and 8 illustrate a first possible embodiment of industrial realization of the adapter device or bulb holder PA for bulbs LT, according to the present invention.
  • emergency batteries B1 and the emergency ballast A2 are housed within a circular ring or "buoy" AS coaxial with the female socket CN2.
  • the light sources S2 and, particularly, emergency LEDs LDE1 , LDE2, LDEN are mounted on the same circuit of emergency ballast A2, arranged on the upper periphery of the circular ring AS and facing behind a cover made up of transparent plastic for the correct lighting of the environment in case of emergency.
  • Enclosed figures 9A, 9B and 10 illustrate a second possible industrial embodiment of the emergency adapter device or bulb holder PA, according to the present invention.
  • batteries B1 and emergency ballast A2 are housed inside ferrule of connector or male socket CN1 , with an advantageous integration, both as regards the overall volume of the product and for the operating temperatures of batteries B1 , which are lower than in the first solution.
  • LDE2 LDEN are arranged on the upper periphery of the entrance of the female part of the connector or socket CN2, behind a transparent plastic protective ring AS1.
  • Enclosed figures 11 A, 1 B, 11C and 12 illustrate a third possible industrial embodiment of the emergency adapter device or bulb holder PA, according to the present invention.
  • a bulb holder PA for fixed installation within a lighting fixture and, in this solution, bulb holder PA, as all the traditional bulb holders, is fixed by means of a threaded metallic tube screwed inside the rear threaded hole F realised at the base of same bulb holder PA and batteries B1 and the emergency ballast A2 are housed within the base of the bulb holder PA, while light sources S2 and, particularly, emergency LEDs LDE1 , LDE2 , LDEN are arranged, as in the second embodiment described in the above, on the upper periphery of the circular ring or "buoy" AS2, facing behind a cover made up of transparent plastic for the correct lighting of the environment in case of emergency.

Abstract

L'invention concerne un dispositif adaptateur (PA) d'ampoule (LT), ledit dispositif comprenant un siège fileté (CN2) destiné à insérer et à raccorder électriquement l'ampoule (LT), comprenant en outre un ballast électronique de secours (A2) qui est raccordé aux bornes d'alimentation (T1) de ladite ampoule (LT) ainsi qu'à une ou plusieurs sources d'éclairage de secours (S2), à au moins une batterie (B1) et à un premier connecteur électrique (T2) d'une première connexion électrique (CN1), ledit ballast électronique de secours (A2) étant raccordé en série à un ballast de ladite ampoule (LT) et pouvant commander à la fois la charge de la batterie (B1) à l'aide du courant électrique qui circule à travers ladite ampoule (LT), et lesdites sources d'éclairage de secours (S2).
PCT/IT2014/000335 2013-12-20 2014-12-16 Dispositif adaptateur d'ampoule WO2015092823A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14838818.4A EP3084920A2 (fr) 2013-12-20 2014-12-16 Dispositif adaptateur d'ampoule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI2013A000307. 2013-12-20
IT000307A ITVI20130307A1 (it) 2013-12-20 2013-12-20 Dispositivo adattatore per lampadine

Publications (2)

Publication Number Publication Date
WO2015092823A2 true WO2015092823A2 (fr) 2015-06-25
WO2015092823A3 WO2015092823A3 (fr) 2015-09-17

Family

ID=50116133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2014/000335 WO2015092823A2 (fr) 2013-12-20 2014-12-16 Dispositif adaptateur d'ampoule

Country Status (3)

Country Link
EP (1) EP3084920A2 (fr)
IT (1) ITVI20130307A1 (fr)
WO (1) WO2015092823A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109737325A (zh) * 2018-12-26 2019-05-10 葛成燕 一种节能led灯
US11029011B2 (en) * 2017-05-25 2021-06-08 Opple Lighting Co., Ltd. Lamp socket connector, lighting device and lighting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0427505D0 (en) * 2004-12-16 2005-01-19 Pugh Anthony Power failure detecting unit
US7703934B2 (en) * 2006-08-01 2010-04-27 Hunter Fan Company Power outage light socket device
WO2009011562A2 (fr) * 2007-07-16 2009-01-22 Darren Aster Gunasekera Adaptateur pour lampe d'éclairage de secours
US8907523B2 (en) * 2008-12-08 2014-12-09 Tvl International Llc Intuitive electronic circuit
WO2010139385A2 (fr) * 2009-06-03 2010-12-09 Atreus Enterprises Limited Indicateur de défaillance du courant secteur
WO2010139080A1 (fr) * 2009-06-05 2010-12-09 Sander Elektronik Ag Circuit électronique permettant de convertir un éclairage sur secteur en un éclairage de secours
WO2012170649A2 (fr) * 2011-06-07 2012-12-13 Stephen Katsaros Accessoire d'éclairage de secours
GB2501770B (en) * 2012-05-04 2016-03-16 Litonics Ltd Lighting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11029011B2 (en) * 2017-05-25 2021-06-08 Opple Lighting Co., Ltd. Lamp socket connector, lighting device and lighting system
CN109737325A (zh) * 2018-12-26 2019-05-10 葛成燕 一种节能led灯
CN109737325B (zh) * 2018-12-26 2021-05-25 南通六一电子科技有限公司 一种节能led灯

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Publication number Publication date
WO2015092823A3 (fr) 2015-09-17
ITVI20130307A1 (it) 2015-06-21
EP3084920A2 (fr) 2016-10-26

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