News Column

Researchers Submit Patent Application, "Led Light Assembly and System", for Approval

July 16, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors Plourde, Roger (Woodbury, CT); Yi, Hae N. (Woodbury, CT); Shin, Byoung K. (Incheon, KR), filed on December 12, 2013, was made available online on July 3, 2014.

The patent's assignee is Dioluce, Llc.

News editors obtained the following quote from the background information supplied by the inventors: "Overhead light fixtures used in parking garages, office space, industrial warehouses, and the like often include fluorescent light bulbs or lamps, and typically include 3 fluorescent light bulbs. Some disadvantages of fluorescent light bulbs or lamps that are used in such fixtures are that they are not very efficient and thus consume a lot of power. For example, such fluorescent light bulbs or lamps are not very amenable to being dimmed and when they are dimmed their power factor or efficiency drops down to about 70%. In addition, fluorescent light bulbs may not provide enough light for certain fixture locations. Further, fluorescent light bulbs have an omni-directional light output pattern, not directional, and thus there is inherent loss of light radiated in a backwards direction (upwards instead of downwards). Further, fluorescent light bulbs become less efficient over time and use, and are not suitable for use in certain applications such as cold weather locations. Still further, fluorescent light bulbs tend to give off a large amount of heat, which can lead to increased air conditioning costs when used in high temperature locations and climates."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "Aspects and embodiments are directed to a replacement light assembly for use in fixtures that currently use fluorescent light bulbs or lamps. Aspects and embodiments are further directed to replacement lighting systems for use in applications that currently use fluorescent light fixtures. In particular, aspects and embodiments of the light assembly disclosed herein can be used to replace existing 2-foot, 4-foot, 8-foot or any length tubular fluorescent light bulbs. Further, aspects and embodiments of the lighting system systems disclosed herein can be configured to retro-fit existing overhead light fixtures or can be provided as new light fixtures. Further, aspects and embodiments of the light assembly and lighting systems disclosed herein can be configured to replace any type of fluorescent light bulb or lamp. Further, aspects and embodiments of the light assembly and lighting system disclosed herein provide for using less light assemblies than fluorescent bulbs currently used in existing fixtures, while providing more efficient, longer-life, and cooler (less heat being generated) lighting.

"Various aspects and embodiments of an LED based light assembly and lighting system are disclosed. One embodiment of a lighting system includes at least one light assembly comprising a plurality of LED chips, a controller and a power supply module. The controller is configured to receive an input signal and to provide an output control signal for controlling power to the at least one light assembly. The power supply module is configured to receive a standard voltage and current signal and to provide a power signal to the at least one light assembly to power the at least one light assembly in response to the control signal.

"Another embodiment of a lighting system includes at least one light assembly comprising a plurality of LED chips, a controller configured to receive an input signal and to provide an output control signal for controlling power to the at least one light assembly, and a power supply module configured to receive a standard voltage and current signal, to convert the standard voltage and current signal to a DC voltage signal for powering the controller and to provide a power signal to the at least one light assembly to power the at least one light assembly in response to the control signal.

"The various embodiments of the lighting system can further comprise a multi-setting switch that provides a respective switch output signal for each setting of the switch, wherein the controller is responsive to switch output signal and is configured to provide the control signal to control the power level provided by the at least one light assembly in response to the setting of the multi-setting switch.

"The various embodiments of the lighting system can further comprise an ambient light sensor that senses an amount of ambient light and provides an ambient light sensor output signal as a function of an amount of sensed ambient light, wherein the controller is also responsive to the ambient light sensor output signal and is configured to provide the control signal to control the light level provided by the at least one light assembly in response to an amount of sensed ambient light.

"The various embodiments of the lighting system can further comprise a motion sensor that senses motion and provides a motion sensor output signal, wherein the controller is also responsive to the motion sensor output signal and is configured to provide the control signal to control the light level provided by the at least one light assembly in response to sensed motion.

"According to aspects of the various embodiments of the lighting system, the at least one light assembly is sized and configured to be replacement for a standard fluorescent light bulb.

"According to aspects of the various embodiments of the lighting system, the at least one light assembly comprises a circuit board housing a plurality of LED chips arranged in at least one row, wherein the circuit board is configured so as to dispose the plurality of LED chips in a spaced apart relationship so as to keep the LED chips below a maximum operating temperature. According to aspects of the light assembly, the circuit board is laid out so to provide for a high level of heat dissipation. According to aspects of the light assembly, the light assembly further comprises a base having a plurality of arms that define ridges along the length of the base to receive the circuit board. According to aspects of the light assembly, the light assembly further comprises further comprises at least one end cap that comprises two connectors that are configured and arranged to mate with a standard fluorescent light bulb fixture. According to aspects of the various embodiments of the lighting system, lighting system further comprises an overdraft protection circuit that limits a peak amount of current that can be provided between the two pins of the end cap.

"According to aspects of the various embodiments of the lighting system, the power supply comprises a stable voltage and current maintenance circuit that that limit the maximum current and voltage to be provided to the at last one light assembly.

"According to aspects of the various embodiments of the lighting system, the at least one light assembly further comprises a cover having ridges running along a length of the cover so as to disperse the light provided by the plurality of LED chips along a width of the cover and the light assembly.

"According to aspects of the various embodiments of the lighting system, the lighting system is sized and arranged to be a replacement for a standard overhead fluorescent light fixture.

"According to aspects of the various embodiments of the lighting system, the lighting system comprises at least two light assemblies. According to aspects of the various embodiments of the lighting system, the lighting system further comprises a cover that covers that at least two light assemblies, wherein the cover has ridges running along a length of the cover so as to disperse the light provided by at least two light assemblies along a width of the cover and along a width of the lighting system. According to aspects of the various embodiments of the lighting system, the lighting system further comprises two rods that maintain the cover in place over the by at least two light assemblies. According to aspects of the various embodiments of the lighting system, the lighting system further comprises a reflective background having ridges to reflect the light provided by the at least two light assemblies.

"According to aspects of the various embodiments of the lighting system, the lighting system further comprises a frame for the lighting system having a plurality of slots in two ends of the frame; a plurality of bracket pins, each shaped and arranged to be pushed through slots in the frame and into an end of a base of the light assembly.

"According to aspects of the various embodiments of the lighting system, the lighting system further comprises a respective hanging bracket and two clips for each of the two ends of the frame of the lighting system that are constructed and arranged to allow for easy installation and removal of each end of the frame of the lighting system from a casing for the lighting system.

"According to aspects of the various embodiments of the lighting system, the lighting system further comprises a plurality of clamps that maintain the cover to a base of the lighting system.

"An LED based lighting system, comprises at least one light assembly comprising a plurality of LED chips; a controller configured to receive an input signal and to provide an output control signal for controlling power to the at least one light assembly; and a power supply module configured to receive a standard voltage and current signal, to convert the standard voltage and current signal to a DC voltage signal for powering the controller and to provide a power signal to the at least one light assembly to power the at least one light assembly in response to the control signal.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a multi-setting switch that provides a respective switch output signal for each setting of the switch, wherein the controller is responsive to switch output signal and is configured to provide the control signal to control the power level provided by the at least one light assembly in response to the setting of the multi-setting switch.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a ambient light sensor that senses an amount of ambient light and provides an ambient light sensor output signal as a function of an amount of sensed ambient light, wherein the controller is also responsive to the ambient light sensor output signal and is configured to provide the control signal to control the light level provided by the at least one light assembly in response to an amount of sensed ambient light.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a motion sensor that senses motion and provides a motion sensor output signal, wherein the controller is also responsive to the motion sensor output signal and is configured to provide the control signal to control the light level provided by the at least one light assembly in response to sensed motion.

"The LED based lighting system as disclosed in any embodiment herein, wherein the at least one light assembly is sized and configured to be replacement for a standard fluorescent light bulb.

"The LED based lighting system as disclosed in any embodiment herein, wherein the at least one light assembly comprises a circuit board housing a plurality of LED chips arranged in at least one row, wherein the circuit board is configured so as to dispose the plurality of LED chips in a spaced apart relationship so as to keep the LED chips below a maximum operating temperature.

"The LED based lighting system as disclosed in any embodiment herein, wherein the circuit board is laid out so to provide for a high level of heat dissipation.

"The LED based lighting system as disclosed in any embodiment herein, wherein the at least one light assembly is further comprises a base having a plurality of arms that define ridges along the length of the base to receive the circuit board.

"The LED based lighting system as disclosed in any embodiment herein, wherein the at least one light assembly further comprises at least one end cap that comprises two connectors that are configured and arranged to mate with a standard fluorescent light bulb fixture.

"The LED based lighting system as disclosed in any embodiment herein, can further include an overdraft protection circuit that limits peak amount of current that can be provided between the two pins of the end cap.

"The LED based lighting system as disclosed in any embodiment herein, wherein the power supply comprises a stable voltage and current maintenance circuit that that limit the maximum current and voltage to be provided to the at last one light assembly.

"The LED based lighting system as disclosed in any embodiment herein, wherein the at least one light assembly further comprises a cover having ridges running along a length of the cover so as to disperse the light provided by the plurality of LED chips along a width of the cover and the light assembly.

"The LED based lighting system as disclosed in any embodiment herein, wherein the lighting system is sized and arranged to be a replacement for a standard overhead fluorescent light fixture.

"The LED based lighting system as disclosed in any embodiment herein, wherein the lighting system comprises at least two light assemblies.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a cover that covers that at least two light assemblies, wherein the cover has ridges running along a length of the cover so as to disperse the light provided by at least two light assemblies along a width of the cover and along a width of the lighting system.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise two rods that maintain the cover in place over the by at least two light assemblies.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a reflective background having ridges to reflect the light provided by the at least two light assemblies.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a frame for the lighting system having a plurality of slots in two ends of the frame and a plurality of bracket pins, each bracket pin being shaped and arranged to be pushed through corresponding slots in the frame and into an end of a base of the light assembly.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a respective hanging bracket and two clips for each of the two ends of the frame of the lighting system that are constructed and arranged to allow for easy installation and removal of each end of the frame of the lighting system from a casing for the lighting system.

"The LED based lighting system as disclosed in any embodiment herein, can further comprise a plurality of clamps that maintain the cover to a base of the lighting system.

BRIEF DESCRIPTION OF THE DRAWINGS

"Various aspects of at least one embodiment are discussed below with reference to the accompanying figures, which are not intended to be drawn to scale. The figures are included to provide illustration and a further understanding of the various aspects and embodiments, and are incorporated in and constitute a part of this specification, but are not intended as a definition of the limits of the invention. Where technical features in the figures, detailed description or any claim are followed by references signs, the reference signs have been included for the sole purpose of increasing the intelligibility of the figures and description. In the figures, each identical or nearly identical component that is illustrated in various figures is represented by a like numeral. For purposes of clarity, not every component may be labeled in every figure. In the figures:

"FIG. 1 is a schematic diagram of a lighting system according to the disclosure;

"FIG. 2 is a top view of a lighting assembly according to the disclosure;

"FIG. 3 is a bottom view of the lighting assembly according to the disclosure;

"FIGS. 4A-4E are mechanical drawings of the lighting assembly 104;

"FIG. 5 illustrates a lighting fixture retrofitted with two lighting assemblies LED light assemblies mounted in the fixture;

"FIG. 6 is a mechanical drawing of an end cap of the light assembly according to this disclosure;

"FIG. 7 is a perspective view of an LED light bulb without its cover, according to this disclosure;

"FIG. 8 illustrates a multi-layer board including a plurality of LED chips slid into engagement with a base, according to this disclosure;

"FIG. 9 is a perspective view of a top of a base according to this disclosure;

"FIG. 10 is a perspective view of a bottom of the base according to this disclosure;

"FIG. 11 is a mechanical drawing of the base according to this disclosure;

"FIG. 12 is a schematic diagram of on embodiment two LED arrays according to this disclosure;

"FIG. 13 is a rendering of the layers of the multi-layer board according to this disclosure;

"FIG. 14 is a mechanical drawing of the cover of the LED bulb according to this disclosure;

"FIG. 15 is a schematic view of one embodiment of a power supply according to the disclosure;

"FIG. 16 is a perspective view on one embodiment of a power supply module according to the disclosure;

"FIG. 17 is a schematic of a rectifying and smoothing circuit of the power supply circuit according to the disclosure;

"FIG. 18 is a schematic of a controller circuit according to the disclosure;

"FIG. 19 is a schematic of a stable current and voltage maintenance circuit according to the disclosure;

"FIG. 20 illustrates an embodiment of the sensors mounted in an existing light fixture according to the disclosure;

"FIG. 21 is a schematic diagram of sensors according to the disclosure;

"FIG. 22 is a schematic diagram of a microcontroller according to the disclosure;

"FIG. 23 illustrates a schematic diagram of one embodiment of a multi-position switch according to the disclosure;

"FIG. 24 illustrates a table of switch settings for the lighting assembly according to this disclosure;

"FIG. 25 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a first setting as a function of light sensed by an ambient light sensor;

"FIG. 26 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a second setting as a function of light sensed by an ambient light sensor;

"FIG. 27 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a third setting as a function of light sensed by an ambient light sensor;

"FIG. 28 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a fourth setting as a function of motion sensed by a motion sensor;

"FIG. 29 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a fifth setting as a function of motion sensed by an motion sensor; and

"FIG. 30 illustrates a flow chart of current provided to the LED's of the lighting assembly for the switch configured with a sixth setting as a function of motion sensed by a motion sensor;

"FIG. 31 is a photo of a front view of a second embodiment of a lighting system according to this disclosure;

"FIG. 32 is a photo of an exploded view of a portion of the light assembly showing a portion of the two light assemblies, a portion of the cover, and a portion of the rods for holding the cover of this second embodiment;

"FIG. 33 is a photo of a cover for the light assembly having corrugations of this second embodiment;

"FIG. 34 illustrates a rear view of this second embodiment of the lighting system having slots in the reflector;

"FIG. 35 shows a photo of an exploded view of bracket pins inserted into a portion of the frame of the lighting system of this second embodiment;

"FIG. 36 shows a bracket pin inserted into the end of the base of the lighting assembly of this second embodiment;

"FIG. 37 is a mechanical drawing of the bracket pin of this second embodiment;

"FIG. 38 is mechanical drawing of a portion of the frame including slots for receiving the bracket pin of this second embodiment;

"FIG. 39 is a photo of a perspective view of the hanging bracket of this second embodiment;

"FIG. 40 is a mechanical drawing of the hanging bracket;

"FIG. 41 illustrates a third embodiment of a lighting system according to this disclosure;

"FIG. 42 illustrates a holding structure for holding sensors and for providing a conduit for coupling the sensors to the controller of the power supply module for this third embodiment;

"FIG. 43 illustrates a power supply module housed within the lighting system on a back side of a base plate that secures the light assemblies of this third embodiment;

"FIG. 44 is an exploded view of a front view of a portion of the lighting system without its cover showing a portion of the two light assemblies secured to the base plate by rounded snap brackets of this third embodiment;

"FIG. 45 is a mechanical drawing of a perspective view, side view and bottom view of the rounded snap brackets for this third embodiment; and

"FIG. 46 shows a perspective view, end view and schematic view of a connector used to connect lighting assembly to the power supply module of this third embodiment."

For additional information on this patent application, see: Plourde, Roger; Yi, Hae N.; Shin, Byoung K. Led Light Assembly and System. Filed December 12, 2013 and posted July 3, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=6049&p=121&f=G&l=50&d=PG01&S1=20140626.PD.&OS=PD/20140626&RS=PD/20140626

Keywords for this news article include: Light Bulb, Dioluce Llc, Electronics, Circuit Board.

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Source: Electronics Newsweekly


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