The present disclosure provides a lighting apparatus generally comprising an LED module having LEDs and a control module to control the LED module. The LED module has pins positioned on an underside thereof to connect to corresponding pins on the upper surface of the LED. The LED module having a passive electrical component whose value can be detected by the control apparatus. In response to said detection, the control apparatus can perform a variety of functions, including configuring the LED module. The lighting apparatus is further comprised of a reflector, the reflector positioned within a central aperture of the control module and surrounding the LEDs. The reflector serves to focus light from the LEDs and can be secured to a diffuser releasably lockable to the lighting apparatus, the diffuser to diffuse the light from the LEDs.
F21V 29/77 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p.ex. puits thermiques avec ailettes ou lames avec ailettes ou lames en plans divergents essentiellement identiques, p.ex. avec une section en forme d’éventail ou d’étoile
The present disclosure provides a lighting apparatus generally comprising an LED module having LEDs and a control module to control the LED module. The LED module has pins positioned on an underside thereof to connect to corresponding pins on the upper surface of the LED. The LED module having a passive electrical component whose value can be detected by the control apparatus. In response to said detection, the control apparatus can perform a variety of functions, including configuring the LED module. The lighting apparatus is further comprised of a reflector, the reflector positioned within a central aperture of the control module and surrounding the LEDs. The reflector serves to focus light from the LEDs and can be secured to a diffuser releasably lockable to the lighting apparatus, the diffuser to diffuse the light from the LEDs.
F21V 15/01 - Boîtiers, p. ex. matériau ou assemblage de parties du boîtier
F21V 17/00 - Fixation des parties constitutives des dispositifs d'éclairage, p.ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection
F21V 17/12 - Fixation des parties constitutives des dispositifs d'éclairage, p.ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques par vissage
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
F21Y 113/13 - Combinaison de sources lumineuses de couleurs différentes comprenant un ensemble de sources lumineuses ponctuelles
The present disclosure provides a lighting apparatus generally comprising an LED module having LEDs and a control module to control the LED module. The LED module has pins positioned on an underside thereof to connect to corresponding pins on the upper surface of the LED. The LED module having a passive electrical component whose value can be detected by the control apparatus. In response to said detection, the control apparatus can perform a variety of functions, including configuring the LED module. The lighting apparatus is further comprised of a reflector, the reflector positioned within a central aperture of the control module and surrounding the LEDs. The reflector serves to focus light from the LEDs and can be secured to a diffuser releasably lockable to the lighting apparatus, the diffuser to diffuse the light from the LEDs.
The present disclosure provides a lighting apparatus generally comprising an LED module having LEDs and a control module to control the LED module. The LED module has pins positioned on an underside thereof to connect to corresponding pins on the upper surface of the LED. The LED module having a passive electrical component whose value can be detected by the control apparatus. In response to said detection the control apparatus can perform a variety of functions, including configuring the LED module.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first colour and a subset of LEDs having a second colour different from said first colour intertwined on the light engine.
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p.ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
H05B 45/46 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED les diodes étant disposées parallèlement
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
13.
Method and installation for removing a gas from a flow of a gas mixture
A method and installation for removing a gas from a flow of a gas mixture. A first liquid (82) is introduced in the flow (106) for evaporative cooling and saturation of the gas mixture. Small droplets of a second liquid (84) are provided which are capable of adsorbing and dissolving said gas and of a size small enough not to be sedimented by gravitation and big enough to be centrifugally separated. The small droplets are sprayed into the flow for adsorbing and dissolving said gas into the droplets, and the small droplets are centrifugally separated from the flow.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first colour and a subset of LEDs having a second colour different from said first colour intertwined on the light engine.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p.ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
H05B 45/46 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED les diodes étant disposées parallèlement
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first colour and a subset of LEDs having a second colour different from said first colour intertwined on the light engine.
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
H05B 45/46 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED les diodes étant disposées parallèlement
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p.ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
16.
Lighting apparatus with controller for generating indication of dimming level for DC power source
Control apparatus and system for controlling an output of a constant current driver are disclosed. A control apparatus is coupled between a constant current driver and a load, such as a lighting module, in order to add functionality to the overall system. The control apparatus is powered by the constant current driver and may control the dimming of the constant current driver by controlling the 0-10V dim input into the driver. The control apparatus may comprise one or more switching elements between the constant current driver and the load to allow for mixing of groups of LEDs of various colors or color temperatures. The control apparatus may include a buffer load to mitigate negative impacts of turning on the lighting module after a period of deactivation. The control apparatus can also be adapted to operate as a dim-to-warm module within a lighting apparatus.
H05B 45/46 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED les diodes étant disposées parallèlement
H05B 47/175 - Commande de la source lumineuse par télécommande
17.
Lighting apparatus with a plurality of light engines
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first colour and a subset of LEDs having a second colour different from said first colour intertwined on the light engine.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p.ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
Control apparatus and system for controlling an output of a constant current driver are disclosed. A control apparatus is coupled between a constant current driver and a load, such as a lighting module, in order to add functionality to the overall system. The control apparatus is powered by the constant current driver and may control the dimming of the constant current driver by controlling the 0-10V dim input into the driver. The control apparatus may comprise one or more switching elements between the constant current driver and the load to allow for mixing of groups of LEDs of various colors or color temperatures. The control apparatus may include a buffer load to mitigate negative impacts of turning on the lighting module after a period of deactivation. The control apparatus can also be adapted to operate as a dim-to-warm module within a lighting apparatus.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first color and a subset of LEDs having a second color different from said first color intertwined on the light engine.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
H01L 33/48 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p.ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
Control apparatus and system for controlling an output of a constant current driver are disclosed. A control apparatus is coupled between a constant current driver and a load, such as a lighting module, in order to add functionality to the overall system. The control apparatus is powered by the constant current driver and may control the dimming of the constant current driver by controlling the 0-10V dim input into the driver. The control apparatus may comprise one or more switching elements between the constant current driver and the load to allow for mixing of groups of LEDs of various colors or color temperatures. The control apparatus may include a buffer load to mitigate negative impacts of turning on the lighting module after a period of deactivation. The control apparatus can also be adapted to operate as a dim-to-warm module within a lighting apparatus.
A lighting apparatus that may comprise a voltage converter operable to supply a current to at least two LED channels coupled between a high voltage rail and a low voltage rail coupled to the voltage converter output is disclosed. The LED channels may be operated to selectively allow a current to flow through them. The lighting apparatus may also have a control module operable to control the total current from the voltage converter and the current through each of the LED channels. The control module may also be operable to set the respective control signals to maintain a constant total current from the voltage converter while permitting aspects of the light output including, the intensity, color, and color temperature to be set and varied. Additionally, the control module may be operable to synchronize the various control signals, obtain a representative sample of the current through the voltage converter, and operate in different modes.
H05B 45/48 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED ayant des LED organisées en chaînes et comportant des dispositifs de dérivation parallèles
H05B 45/46 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] - Détails des circuits de charge à LED avec un contrôle actif à l'intérieur d'une matrice de LED les diodes étant disposées parallèlement
H05B 47/00 - Circuits pour faire fonctionner des sources lumineuses en général, c. à d. où le type de source lumineuse n'est pas important
H05B 41/282 - Circuits dans lesquels la lampe est alimentée par une puissance obtenue à partir de courant continu au moyen d'un convertisseur, p.ex. par courant continu à haute tension utilisant des convertisseurs statiques comportant des dispositifs à semi-conducteurs
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first color and a subset of LEDs having a second color different from said first color intertwined on the light engine.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
23.
Circuit and apparatus for controlling a constant current DC driver output
The present invention is directed to circuit and apparatus for controlling an output of a constant current driver. A control apparatus is coupled between a constant current driver and a load, such as a lighting module, in order to add functionality to the overall system. The control apparatus is powered by the constant current driver and may control the dimming of the constant current driver by controlling the 0-10V dim input into the driver. The control apparatus may comprise one or more switching elements between the constant current driver and the load. The control apparatus may interface with external devices or communication networks in order to receive control commands or information that may be used for control purposes. Overall, the control apparatus is implemented into the system to enable added-value features that the constant current driver would otherwise not be able to implement.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first color and a subset of LEDs having a second color different from said first color intertwined on the light engine.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
25.
Methods and apparatus for communicating current levels within a lighting apparatus incorporating a voltage converter
Circuits for sensing current levels within an apparatus are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting apparatus in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured by determining a voltage level across a known resistor and calculating the current level. To prevent the known resistor from causing a significant reduction in the efficiency of the overall light engine, the circuit includes one or more transistors in parallel with the known resistor to reduce the effective resistance in the LED circuit during times that the current is not being sensed.
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriques; Combinaisons structurelles de ces éléments avec ces appareils
26.
Voltage converter and lighting apparatus incorporating a voltage converter
A lighting apparatus that may comprise a voltage converter operable to supply a current to at least two LED channels coupled between a high voltage rail and a low voltage rail coupled to the voltage converter output is disclosed. The LED channels may be operated to selectively allow a current to flow through them. The lighting apparatus may also have a control module operable to control the total current from the voltage converter and the current through each of the LED channels. The control module may also be operable to set the respective control signals to maintain a constant total current from the voltage converter while permitting aspects of the light output including, the intensity, color, and color temperature to be set and varied. Additionally, the control module may be operable to synchronize the various control signals, obtain a representative sample of the current through the voltage converter, and operate in different modes.
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
H05B 41/282 - Circuits dans lesquels la lampe est alimentée par une puissance obtenue à partir de courant continu au moyen d'un convertisseur, p.ex. par courant continu à haute tension utilisant des convertisseurs statiques comportant des dispositifs à semi-conducteurs
H05B 37/00 - Circuits pour sources lumineuses électriques en général
Methods and apparatus for changing a DC supply voltage applied to a lighting circuit are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting circuit in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured and an indication of the current level is communicated to a person who can manually adjust the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply. Alternatively, an automatic adjustment of the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply can be performed based upon the measured current level.
The present invention is directed to lighting apparatus and methods for controlling lighting apparatus using ambient light levels. A controller within a lighting apparatus is used to activate and deactivate one or more light radiating devices within a duty cycle. In a first stage, the controller uses a light detection apparatus to sample the ambient light level at a plurality of sampling times during which the light radiating devices are deactivated. The light level when the light radiating devices are deactivated is an indication of the ambient light levels within the surrounding area of the lighting apparatus. The sampling times occur in different duty cycles within a survey time period. The controller determines an average for the light levels sampled over the survey time period, thus generating an averaged ambient light level over the survey time period. In a second stage, the controller adjusts an intensity of the light radiating devices based at least partially upon the averaged ambient light level. The controller may generate a target light level using the averaged ambient light level over the survey time period and a desired light level and, over an adjustment time period, incrementally adjust the intensity of the light radiating devices towards the target light level.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use a multi-layer metal core printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
H01L 33/48 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
F21S 4/00 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
A lighting apparatus that may comprise a voltage converter operable to supply a current to at least two LED channels coupled between a high voltage rail and a low voltage rail coupled to the voltage converter output is disclosed. The LED channels may be operated to selectively allow a current to flow through them. The lighting apparatus may also have a control module operable to control the total current from the voltage converter and the current through each of the LED channels. The control module may also be operable to set the respective control signals to maintain a constant total current from the voltage converter while permitting aspects of the light output including, the intensity, colour, and colour temperature to be set and varied. Additionally, the control module may be operable to synchronize the various control signals, obtain a representative sample of the current through the voltage converter, and operate in different modes.
A method for controlling pulse width modulated lighting devices within a lighting apparatus comprising a plurality of sets of lighting devices is disclosed. The method includes setting a counter for a first set of the plurality of sets of lighting devices using a master counter and an activation duration for one or more other sets of the plurality of sets of lighting devices. The method further includes determining an activation time period within a duty cycle for the first set of lighting devices using the counter for the first set of lighting devices and an activation duration for the first set of lighting devices. In some embodiments of the present invention, the lighting devices are light emitting diodes grouped into sets (or banks) and controlled to limit the magnitude and/or quantity of instantaneous current fluctuations in a power supply within the lighting apparatus.
A lighting apparatus may comprise a voltage converter operable to supply a current to at least two LED channels coupled between a high voltage rail and a low voltage rail coupled to the voltage converter output. The LED channels may be operated to selectively allow a current to flow through them. The lighting apparatus may have a control module operable to control the total current from the voltage converter and the current through each of the LED channels. The control module may also be operable to set the respective control signals to maintain a constant total current from the voltage converter while permitting aspects of the light output including, the intensity, color, and color temperature to be set and varied. Additionally, the control module may be operable to synchronize the various control signals, obtain a representative sample of the current through the voltage converter, and operate in different modes.
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
H05B 41/282 - Circuits dans lesquels la lampe est alimentée par une puissance obtenue à partir de courant continu au moyen d'un convertisseur, p.ex. par courant continu à haute tension utilisant des convertisseurs statiques comportant des dispositifs à semi-conducteurs
H05B 37/00 - Circuits pour sources lumineuses électriques en général
B23K 11/24 - Circuits d'alimentation ou de commande appropriés
33.
Circuits for sensing current levels within a lighting apparatus incorporating a voltage converter
Circuits for sensing current levels within an apparatus are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting apparatus in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured by determining a voltage level across a known resistor and calculating the current level. To prevent the known resistor from causing a significant reduction in the efficiency of the overall light engine, the circuit includes one or more transistors in parallel with the known resistor to reduce the effective resistance in the LED circuit during times that the current is not being sensed.
H05B 37/00 - Circuits pour sources lumineuses électriques en général
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriques; Combinaisons structurelles de ces éléments avec ces appareils
34.
Lighting apparatus and methods for controlling lighting apparatus using ambient light levels
Lighting apparatus and methods for controlling lighting apparatus using ambient light levels are disclosed. A controller is used to activate and deactivate one or more light radiating devices within a duty cycle. The controller uses a light detection apparatus to sample ambient light levels at a plurality of sampling times during which the light radiating devices are deactivated. The controller determines an average for the light levels sampled over a survey time period, thus generating an averaged ambient light level over the survey time period. The controller adjusts an intensity of the light radiating devices based at least partially upon the averaged ambient light level. The controller may generate a target light level using the averaged ambient light level over the survey time period and a desired light level and, over an adjustment time period, incrementally adjust the intensity of the light radiating devices towards the target light level.
Lighting apparatus and method for detecting reflected light from local objects are disclosed. A controller within a lighting apparatus is used to activate and deactivate one or more LEDs within a duty cycle. The controller uses a light detection apparatus that is optically isolated from the LEDs to sample light levels during a time in which the LEDs are deactivated and during a time in which the LEDs are activated. The light level when the LEDs are deactivated is an indication of the ambient light levels within the surrounding area of the lighting apparatus. The light level when the LEDs are activated is an indication of the ambient light levels combined with any light generated by the LEDs that is reflected onto the light detection apparatus. By comparing these light levels, the controller can determine the level of light attributable to reflected light from the LEDs.
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use a multi-layer metal core printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification.
F21S 9/00 - Dispositifs d'éclairage avec une source d'énergie incorporée; Systèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée
H01L 33/48 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs
The present invention is directed to lighting apparatus and methods for controlling lighting apparatus using ambient light levels. A controller within a lighting apparatus is used to activate and deactivate one or more light radiating devices within a duty cycle. In a first stage, the controller uses a light detection apparatus to sample the ambient light level at a plurality of sampling times during which the light radiating devices are deactivated. The light level when the light radiating devices are deactivated is an indication of the ambient light levels within the surrounding area of the lighting apparatus. The sampling times occur in different duty cycles within a survey time period. The controller determines an average for the light levels sampled over the survey time period, thus generating an averaged ambient light level over the survey time period. In a second stage, the controller adjusts an intensity of the light radiating devices based at least partially upon the averaged ambient light level. The controller may generate a target light level using the averaged ambient light level over the survey time period and a desired light level and, over an adjustment time period, incrementally adjust the intensity of the light radiating devices towards the target light level.
The present invention is directed to lighting apparatus and methods for controlling lighting apparatus using ambient light levels. A controller within a lighting apparatus is used to activate and deactivate one or more light radiating devices within a duty cycle. In a first stage, the controller uses a light detection apparatus to sample the ambient light level at a plurality of sampling times during which the light radiating devices are deactivated. The light level when the light radiating devices are deactivated is an indication of the ambient light levels within the surrounding area of the lighting apparatus. The sampling times occur in different duty cycles within a survey time period. The controller determines an average for the light levels sampled over the survey time period, thus generating an averaged ambient light level over the survey time period. In a second stage, the controller adjusts an intensity of the light radiating devices based at least partially upon the averaged ambient light level. The controller may generate a target light level using the averaged ambient light level over the survey time period and a desired light level and, over an adjustment time period, incrementally adjust the intensity of the light radiating devices towards the target light level.
39.
Lighting apparatus and circuits for lighting apparatus
The present invention discloses a lighting apparatus that includes a plurality of parallel circuits and a common circuit. The parallel circuits each comprise a switching transistor and a set of LEDs, the sets of LEDs having different characteristics such as different light output wavelengths. In operation, one of the parallel circuits is selected by activating the corresponding switching transistor, thus selecting the respective LEDs to be activated. The common circuit also comprises a set of LEDs, these LEDs being activated no matter which parallel circuit is selected. In various implementations, the lighting apparatus can generate a wide spectrum of light outputs by selectively activating the plurality of parallel circuits within time slots of a duty cycle. In some cases, balancing of loads across the parallel circuits is desired to maintain the appropriate current flowing through the LEDs.
Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus.
41.
Control apparatus and lighting apparatus incorporating control apparatus
Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus.
Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus.
Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus.
Control apparatus for controlling an aspect of an apparatus are disclosed. In certain embodiments, the control apparatus comprises a dimmer that includes a variable impedance. In certain embodiments of the invention, the dimmer may be a TRIAC dimmer having a voltage at a gate electrode of the TRIAC that is always below a trigger voltage for the TRIAC such that the TRIAC never turns on and the remaining components within the TRIAC dimmer can be used as discreet components in a larger circuit. In the control apparatus, the dimmer may be coupled to a signal generation circuit that may generate an output signal whose frequency (period) is dictated at least in part by an impedance of the variable impedance. The output signal may be used to control an aspect of an apparatus such as the intensity, color or color temperature for a lighting apparatus.
H05B 41/16 - Circuits dans lesquels la lampe est alimentée par courant continu ou par courant alternatif à basse fréquence, p.ex. courant alternatif à 50 Hertz
Circuits for sensing current levels within an apparatus are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting apparatus in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured by determining a voltage level across a known resistor and calculating the current level. To prevent the known resistor from causing a significant reduction in the efficiency of the overall light engine, the circuit includes one or more transistors in parallel with the known resistor to reduce the effective resistance in the LED circuit during times that the current is not being sensed.
Methods and apparatus for changing a DC supply voltage applied to a lighting circuit are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting circuit in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured and an indication of the current level is communicated to a person who can manually adjust the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply. Alternatively, an automatic adjustment of the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply can be performed based upon the measured current level.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(Based on Use in Commerce) Electrical LED controllers; (Based on 44(e)) onelectrical lighting controllers; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, microprocessors, microcontrollers, light emitting diodes (LEDs), LED circuit boards, circuit boards, electrical power supplies, electronic transmitters and receivers for communicating to and from a lighting apparatus, computer chips and electronic circuits; [ apparatus for recording, transmitting or reproducing artificial light, images, sound or combinations thereof, namely, microprocessors, microcontrollers, light emitting diodes (LEDs), LED circuit boards; ] computer hardware, computer programs and software used to control lighting fixtures and to create, edit, store, manipulate, simulate and display artificial light [ , images, sound or combinations thereof; electronic controllers that enable communication through LED lights and/or free space optics, diagnostics for LED lights, motion sensor technology, ambient light detection sensors; wireless and wireline communication protocols between light fixtures; user interface electrical controllers for lighting, sound and content control; detectors, controllers, transmitters, receivers, redundant light components and software for detecting ] [ and reporting faults for ] [ lighting fixtures; detectors, controllers, transmitters, receivers and software for detecting and reporting performance of light fixtures ] (Based on 44(e)) LED (light emitting diode) lighting fixtures comprising LED controllers, drivers and light engines; apparatus for lighting, lighting fixtures, components of lighting fixtures namely, electric lighting fixtures; electrical controllers used to control the color and/or intensity of artificial light sold as an integral component of lighting fixtures [ (Based on 44(e)) Lighting fixture installation services; maintenance services of lighting fixtures provided with innovative and intelligence electronics with LED technology ] (Based on 44(e)) Custom design and engineering of lighting controllers; [ custom design services in the field of control systems for video displays; ] custom design and engineering of LED light engines and light arrays; custom design of light fixtures; custom design and engineering of drivers for lighting fixtures; custom design and engineering of LED lighting
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Lighting controllers.
(2) Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, microprocessors, microcontrollers, LED, LED controllers, LED drivers, LED light engines, LED light fixtures comprising of LED controllers, drivers and light engines; circuit boards, power modules, transmitters, receivers, computer chips and circuits; Apparatus for lighting, lighting fixtures, components of lighting fixtures, namely, electric lighting fixtures, LED controllers, LED drivers, LED light engines and LED light fixtures; controllers, dimmers and user interfaces used to control the color and intensity of artificial light sold as components lighting fixtures; and controllers sold as components of lighting fixtures; controllers that enable communication through LED lights and/or free space optics, diagnostics for LED lights, motion sensor technology, ambient light detection sensors, wireless and wireline communication protocols between light fixtures; detectors, controllers, transmitters, receivers, redundant light components and software for detecting and reporting faults for lighting fixtures; detectors, controllers, transmitters, receivers and software for detecting and reporting performance of light fixtures. (1) Engineering and design of lighting controllers.
(2) Engineering and design services in the field of control systems for video displays.
(3) Engineering and design of LED light engines and light arrays.
(4) Lighting fixture design services; maintenance services of lighting fixtures provided with innovative and intelligence electronics with LED technology; engineering and design of drivers for lighting fixtures; engineering and design of LED lighting products.
49.
Method, apparatus and computer-readable media for controlling lighting devices
The present invention is directed to method, system and computer-readable media for controlling lighting devices. In some embodiments, a method for controlling pulse width modulated lighting devices within a lighting apparatus comprising a plurality of sets of lighting devices is disclosed. The method includes setting a counter for a first set of the plurality of sets of lighting devices using a master counter and an activation duration for one or more other sets of the plurality of sets of lighting devices. The method further includes determining an activation time period within a duty cycle for the first set of lighting devices using the counter for the first set of lighting devices and an activation duration for the first set of lighting devices. In some embodiments of the present invention, the lighting devices are light emitting diodes grouped into sets (or banks) and controlled to limit the magnitude and/or quantity of instantaneous current fluctuations in a power supply within the lighting apparatus.
