ES2855400T3 - Modular lighting fixture based on LEDs for the coupling of sockets, lighting accessories that incorporate them and procedures for their assembly, installation and removal. - Google Patents

Abstract

A modular lighting fixture (100), comprising: - a fixture housing; - a socket mounted on the accessory housing; - a light generation module (104) installed and removable from the socket; and - a controller module (105) for controlling the light generation module, the controller module arranged in the fixture housing or separate from the fixture housing, wherein the light generation module (104) is configured to provide information to the controller module (105) regarding at least one characteristic of the light generation module; The controller module (105) is configured to control the light generation module (104) based at least in part on the information provided by the light generation module, and is characterized in that the information refers to a temperature history of operation associated with the light generation module (104).

Description

DESCRIPTION

Modular lighting fixture based on LEDs for the coupling of sockets, lighting accessories that incorporate them and procedures for their assembly, installation and removal.

Field of the invention

The present invention relates generally to modular lighting fixtures and methods of assembling, installing, and replacing such fixtures. In various aspects, the methods and apparatus in accordance with the present invention facilitate the manufacture, installation, and replacement of modular components of lighting fixtures, as well as thermal efficiency during operation. In one aspect, these lighting apparatus and methods employ LED-based light sources to provide visible light in a variety of environments and for a variety of lighting applications.

Background

LED-based lighting fixtures are used for a variety of lighting applications. In some cases, the lighting fixture may include a controller, one or more LED-based light sources, and may further include one or more components to facilitate heat dissipation, in a built-in unit. Replacement of any item in such a built-in unit may require replacement of the entire lighting fixture or repair by a qualified technician. Additionally, the physical swapping of new LED-based light sources for existing LED-based light sources can be difficult if different LED-based lighting sets are desired or if existing LED-based sources fail.

Recessed lighting is a popular lighting option for both new construction and remodeling. With recessed lighting, most of a lighting fixture is arranged substantially behind or recessed into an architectural surface or feature, such as a ceiling (or a wall or soffit). The lighting fixture typically includes a housing (sometimes commonly referred to as a "can"), a bulb such as an incandescent, fluorescent, or halogen bulb, and some means for electrically connecting the fixture to a source of operating power. With a new construction, the fixture is normally supported by hangers attached to the rafters. When remodeling, to reduce the amount of ceiling (or other architectural surface) that is removed, the fixture can be inserted through a hole in the ceiling and attached to the drywall that forms the ceiling, in which the ceiling hole provides a light outlet opening for the light generated by the appliance's bulb. Document US 2002/0175641 discloses a lighting control module to control the power to a lamp, said module comprises a means for receiving electronic communication from a central controller, a current sensor, a current controller to control the current in a power circuit that passes through said module, the current controller that operates to open and close said power circuit, a control unit connected to the current controller and the means for receiving electronic communications, the control unit that operates to cause the current controller to open and close the power circuit in response to communications.

Summary

The features of the invention are defined by independent claims 1 and 12.

Various embodiments of the present invention are directed to modular lighting fixtures that allow for the convenient installation and removal of LED-based light generation modules, as well as controller modules that can be used to control the light generation modules. In one example, a modular lighting fixture includes a housing that is configured to be recessed or arranged behind an architectural surface, such as a ceiling, wall, or soffit, in new or existing construction scenarios. The fixture housing includes a socket configured to facilitate one or more of a mechanical, electrical, and thermal coupling of the light generation module to the fixture housing. The ability to easily dock and undock the LED-based light-generating module with the socket, without removing the housing of the fixture itself, allows direct replacement of the light-generating module upon failure, or swapping with another module that has different light-generating characteristics. Modular lighting controllers (also referred to as "controller modules") for such accessories can also be easily installed or removed from the fixture housing, in some cases through the same path that the lighting module is installed and removed. light generation.

Therefore, modular lighting fixtures are provided in which a single housing can accommodate different LED-based light-generating modules that can be switched inside and outside the housing. In this regard, light generation modules according to various embodiments of the present disclosure can mimic the ease of installation and replacement of conventional incandescent, fluorescent or halogen bulbs as it can be inserted into a new light generation module in the casing without accessory changes. A new light generation module can be inserted, for example, when a previous light generation module stops working or an improved or different light generation module is desired.

As indicated above, in accordance with one aspect of the invention, a socket facilitates the attachment of a light generation module to a housing of a lighting fixture. In addition to providing a mechanical connection between the light generating module and the lighting fixture, the socket can also provide an electrical connection and / or a thermal connection. For example, the socket may include electrical connections that provide drive signals and operating power to a light generating module when the light generating module is inserted or otherwise attached to the socket. According to another aspect, a socket or other fixing element can facilitate thermal diffusion in at least two ways. First, the socket can be configured to interact with the light generation module so that the light generation module achieves a thermal connection with the housing or other component of the lighting fixture. Second, the socket itself can be thermally conductive and help transfer heat to the housing and / or directly to the surrounding air (for example, through a front light exit face of the light generation module).

In accordance with another aspect, a removable light generation module is configured to facilitate heat transfer away from the light sources present in the module. Heat transfer is achieved in some embodiments by using a thermally conductive chassis for the light generation module to facilitate heat transfer away from a front side (light exit face) of the light generation module. In some embodiments, a thermally conductive base plate is attached to a rear side of the light generation module to facilitate heat transfer to a housing or other part of the lighting fixture, in some cases through the socket.

According to another aspect, coupling and uncoupling of a light generation module with the socket of a lighting fixture is achieved through a simple rotary movement. In this sense, installing and removing an LED-based light generation module from a modular light fixture can have a familiar feel similar to the process of changing a conventional incandescent light bulb.

In particular, in an exemplary implementation, the socket is configured as a collar with spindle-type threads, and the module is configured to be plugged into and unplugged from a socket through a threaded grip ring that fits over the module and engages with the threads in the socket through rotation, thus "sandwiching" the module between the grip ring and the socket. In accordance with another aspect of the disclosure, a removable light generation module includes a number of hexagonal shaped LED subsets. In some embodiments, the gripper ring is rotatable relative to module so that the orientation of the LED subsets is not affected by rotation of the gripper ring (i.e., the module itself does not rotate in the socket when the ring is rotated grip). Additionally, the relative rotation of the grip ring can allow a connector to be mounted directly to the light generating module without concern for the effects of twisting on the connector.

In other embodiments, no gripping ring is used to secure the light generating module to the socket, and the electrical connections between the light generating module and the socket are accomplished through pole connections (or threads) in the socket. light generation module and the corresponding wires (or posts) in the socket. That is, electrical contacts may be provided on the coupling elements themselves in some embodiments.

In accordance with the invention, a controller module is used in connection with a light generation module in an implementation of the lighting fixture. In accordance with another aspect of the disclosure, a controller module may have a physical structure that is configured for installation in a specific type of accessory housing. For example, a controller module may have one or more rounded edges to facilitate placement or removal of the controller module from a recessed lighting fixture that is not itself removable from an architectural feature such as a ceiling.

In one embodiment, a controller module itself may have an internal modular construction. More specifically, the controller module can be configured for interchangeability of components that are used to receive input control signals and / or data on a "front end" input interface (eg, coupled to a user interface, network control, sensor, etc.). The controller module can be further configured for interchangeability of components that are used to output control and / or data and / or power signals at a "back end" output interface to the light generation module. In this sense, the controller module can be flexible in its ability to communicate with several light generating modules and / or light generating networks, computers or other controllers without the need for numerous hardware and / or software components to be simultaneously present within of the controller module. Such a configuration can save space and / or cost when producing controller modules for modular lighting fixtures and other applications.

In accordance with another aspect of the invention, a light generation module for a modular lighting fixture can be configured with some nominal data processing and storage capacity to provide information to a controller associated with the lighting fixture and packaged as a module. controller separate from lighting fixture. For example, the light generation module may provide information on one or more of the types of light sources present in the light generation module, their power requirements, operating temperature, operating history or temperature, parameters of calibration and the like, so that a separate controller module can provide suitable drive signals and operating power to the light generation module.

In accordance with another aspect of the invention, a controller module is configured to receive information, data and or control signals from a light generation module related to some operating parameter or characteristic associated with the light generation module. The controller module can be programmed to alter its output and / or power output control signals to the light generation module based on information received from the light generation module. For example, the light generation module can indicate to the controller the voltage or current levels desired for the operation of that particular light generation module, and the controller can provide the appropriate voltage and current levels based on that information.

In accordance with another aspect, a battery or other auxiliary power source is provided in an LED lighting fixture so that the LED lighting fixture can be used for emergency lighting in addition to its primary lighting purpose.

One embodiment is directed to a modular lighting fixture, comprising a fixture housing having at least one thermally conductive part, and a socket mounted on the thermally conductive part of the fixture housing. The socket is configured to facilitate a thermal conduction path between a light generating module installed in the socket and the at least thermally conductive part of the fixture housing. Another embodiment is directed to a modular lighting fixture, comprising a fixture housing having at least one light outlet opening, a socket mounted on the fixture housing and accessible through the outlet opening of at least one light , a light generation module installed and removable from the socket through the outlet opening of at least one light, and a controller module to control the light generation module. The controller module is arranged in the fixture housing and is accessible through the outlet opening of at least one light to facilitate installation and removal of the controller module.

Another embodiment is directed to a modular lighting fixture, comprising a fixture housing, a socket mounted on the fixture housing, a light generation module installed and removable from the socket, and a controller module for controlling the generating module. light, the controller module disposed in or near the fixture housing. The light generation module is configured to provide information to the controller module related to at least one characteristic of the light generation module, and the controller module is configured to control the light generation module based at least in part on the information provided. by the light generation module.

As used herein for the purposes of this disclosure, the term "LED" is to be understood to include any light emitting diode or other type of junction-based / injection carrier system that is capable of generating radiation in response to a signal. electrical. Therefore, the term LED includes, but is not limited to, various semiconductor-based structures that emit light in response to current, light-emitting polymers, organic light-emitting diodes (OLEDs), electroluminescent strips, and the like.

In particular, the term LEDs refers to light-emitting diodes of all kinds (including semiconductor and organic light-emitting diodes) that can be configured to generate radiation in one or more of the infrared spectrum, the ultraviolet spectrum, and various portions of the spectrum. visible spectrum (generally including radiation wavelengths from about 400 nanometers to about 700 nanometers). Some examples of LEDs include, but are not limited to, various types of infrared LEDs, ultraviolet LEDs, red LEDs, blue LEDs, green LEDs, yellow LEDs, amber LEDs, orange LEDs, and white LEDs (explained later). It should also be appreciated that LEDs can be configured and / or controlled to generate radiation with various bandwidths (e.g., full widths at half maximum, or FWHM) for a given spectrum (e.g., narrow bandwidth, narrow bandwidth, broadband) and a variety of dominant wavelengths within a given general color categorization.

For example, an implementation of an LED configured to generate essentially white light (eg, a white LED) may include several chips that respectively emit different spectra of electroluminescence which, in combination, mix to form essentially white light. In another implementation, a white light LED can be associated with a phosphor material that converts electroluminescence having a first spectrum to a different second spectrum. In one example of this implementation, electroluminescence having a relatively short wavelength and narrow bandwidth spectrum "pumps" the phosphor material, which in turn radiates longer wavelength radiation that has a spectrum something broader.

It should also be understood that the term LED does not limit the type of physical and / or electrical packaging of an LED. For example, as explained above, an LED can refer to a single light emitting device that has multiple chips that are configured to respectively emit different spectra of radiation (eg, which may or may not be individually controllable). Also, an LED can be associated with the phosphor that is considered an integral part of the LED (for example, some types of white LEDs). Generally, the term LED can refer to packaged LEDs, unpackaged LEDs, surface mount LEDs, chip-on-board LEDs, mount LEDs in T-pack, radial packaging LEDs, power packaging LEDs, LEDs that include some type of coating and / or optical element (for example, a diffuser lens), etc.

The term "light source" is to be understood to refer to any one or more of a variety of radiation sources, including, but not limited to, LED-based sources (including one or more LEDs as defined above). , incandescent sources (for example, filament lamps, halogen lamps), fluorescent sources, phosphorescent sources, high intensity discharge sources (for example, sodium vapor, mercury vapor, and metal halide lamps), lasers, other types of electroluminescent sources, pyroluminescent sources (eg flames), ignition principle luminescent sources such as candles (eg gas blankets, carbon arc radiation sources), photoluminescent sources (eg gaseous discharge sources), cathode luminescent sources using electronic satiety, galvanoluminescent sources, crystalline luminescent sources, kinoluminescent sources, thermoluminescent sources, tribolumin sources iscents, sonoluminescent sources, radioluminescent sources, and luminescent polymers.

A given light source can be configured to generate electromagnetic radiation within the visible spectrum, outside the visible spectrum, or a combination of both. Therefore, the terms "light" and "radiation" are used interchangeably herein. Furthermore, a light source may include as an integral component one or more filters (eg, color filters), lenses, or other optical components. Furthermore, it should be understood that the light sources can be configured for a variety of applications, including, but not limited to, indication, display, and / or lighting. An "illumination source" is a light source that is particularly configured to generate radiation that is of sufficient intensity to effectively illuminate an interior or exterior space. In this context, "sufficient intensity" refers to sufficient radiant power in the visible spectrum generated in space or surroundings (the unit "lumens" is often used to represent the total light output of a light source in all directions, in terms of radiant power or "luminous flux") to provide ambient lighting (that is, light that can be indirectly perceived and that can be reflected, for example, from one or more of a variety of intervening surfaces before being perceived in its in whole or in part).

The term "spectrum" should be understood to refer to any one or more frequencies (or wavelengths) of radiation produced by one or more light sources. Consequently, the term "spectrum" refers to frequencies (or wavelengths) not only in the visible range, but also frequencies (or wavelengths) in the infrared, ultraviolet, and other areas of the general electromagnetic spectrum. Furthermore, a given spectrum may have a relatively narrow bandwidth (for example, an FWHM that has essentially few frequency or wavelength components) or a relatively wide bandwidth (several frequency or wavelength components that have various relative intensities). It should also be appreciated that a given spectrum may be the result of a mixture of two or more spectra (eg, the mixed radiation emitted, respectively from multiple light sources).

For the purposes of this disclosure, the term "color" is used interchangeably with the term "spectrum." However, the term "color" is generally used to refer primarily to a property of radiation that is perceptible to an observer (although this use is not intended to limit the scope of this term). Consequently, the terms "different colors" implicitly refer to multiple spectra having different wavelength components and / or bandwidths. It should also be appreciated that the term "color" can be used in relation to white and non-white light.

The term "color temperature" is generally used herein in relation to white light, although this use is not intended to limit the scope of this term. Color temperature essentially refers to a particular color content or hue (eg, reddish, bluish) of white light. The color temperature of a given radiation sample is conventionally characterized according to the temperature in degrees Kelvin (K) of a blackbody radiator that radiates essentially the same spectrum as the radiation sample in question. Blackbody radiator color temperatures generally fall within a range of approximately 700 degrees K (normally considered the first visible to the human eye) to more than 10,000 degrees K; white light is generally perceived at color temperatures above 1,500-2,000 degrees K.

Lower color temperatures generally indicate white light that has a more significant red component or a "warmer feel", while higher color temperatures generally indicate white light that has a more significant blue component or a "cooler feel." . " As an example, fire has a color temperature of about 1,800 degrees K, a conventional incandescent light bulb has a color temperature of about 2,848 degrees K, early morning daylight has a color temperature of about 3,000 degrees. K, and cloudy midday skies have a color temperature of approximately 10,000 degrees K. A color image viewed under white light that has a color temperature of approximately 3,000 degrees K has a relatively reddish hue, while the same image in Color seen under white light that has a color temperature of about 10,000 degrees K has a relatively bluish cast.

The term "lighting fixture" is used herein to refer to an apparatus that includes one or more light sources of the same or different types. A given lighting fixture can have any of one variety of mounting arrangements for light sources, shell / shell arrangements and shapes, and / or electrical and mechanical connection configurations. In addition, a given lighting fixture may optionally be associated with (eg, include, coupled, and / or packaged together with) various other components (eg, control circuits) related to the operation of the light sources. An "LED-based" refers to a lighting fixture that includes one or more LED-based light sources as explained above, alone or in combination with other non-LED-based light sources. A "multi-channel" lighting fixture refers to an LED-based or non-LED-based lighting fixture that includes at least two light sources configured to respectively generate different radiation spectra, where each different source spectrum may be referred to as " channel "of the multi-channel lighting fixture.

The term "controller" is used herein generally to describe various apparatus related to the operation of one or more light sources. A controller can be implemented in numerous ways (eg, with dedicated hardware) to perform various functions discussed herein. A "processor" is an example of a controller that employs one or more microprocessors that can be programmed through the use of software (eg, microcode) to perform various functions discussed herein. A controller can be implemented with or without employing a processor, and can also be implemented as a combination of dedicated hardware to perform some functions and a processor (eg, one or more programmed microprocessors and associated circuitry) to perform other functions. Examples of controller components that may be employed in various embodiments of the present disclosure include, but are not limited to, conventional microprocessors, application-specific integrated circuits (ASICs), and programmable logic gate arrays (FPGAs).

In various implementations, a processor or controller can be associated with one or more storage media (referred to generically herein as "memory", for example, volatile and non-volatile computer memory such as RAM, PROM, EPROM and EEPROM, floppy disks, compact discs, optical discs, magnetic tape, etc.). In some implementations, the storage media can be encoded with one or more programs that, when run on one or more processors and / or controllers, perform at least some of the functions discussed herein. Various storage media may be attached within a processor or controller or may be transportable, such that one or more programs stored therein may be loaded into a processor or controller in order to implement various aspects of the present disclosure explained herein. memory. The terms "program" or "computer program" are used herein in a generic sense to refer to any type of computer code (eg, software or microcode) that can be used to program one or more processors or controllers.

The term "addressable" is used herein to refer to a device (eg, a general light source, a lighting fixture, a controller or processor associated with one or more light sources or lighting fixtures, others non-lighting related devices, etc.) that is configured to receive information (eg data) intended for multiple devices, including itself, and to selectively respond to particular information intended for it. The term "addressable" is often used in connection with a network environment (or a "network", which is explained later), in which various devices are coupled together through some medium or means of communication.

In a network implementation, one or more devices coupled to a network can serve as a controller for one or more devices coupled to the network (eg, in a master / slave relationship). In another implementation, an interconnected environment may include one or more dedicated controllers that are configured to control one or more of the devices attached to the network. In general, each of the multiple devices coupled to the network can have access to the data that is present in the communication medium or media; however, a given device may be "addressable" as it is configured to selectively exchange data with (that is, receive data from and / or transmit data to) the network, based on, for example, one or more particular identifiers ( for example, "addresses") assigned to it.

The term "network", as used herein, refers to any interconnection of two or more devices (including controllers or processors) that facilitates the transport of information (eg, for device control, data storage , data exchange, etc.) between any of two or more devices and / or between multiple devices connected to the network. As should be readily appreciated, various network implementations suitable for interconnecting multiple devices can include any of a variety of network topologies and employ any of a variety of communication protocols. Furthermore, in various networks according to the present disclosure, any connection between two devices can represent a dedicated connection between the two systems, or alternatively a non-dedicated connection. In addition to carrying the information destined for the two devices, such a non-dedicated connection may carry information not necessarily destined for either of the two devices (for example, an open network connection). Furthermore, it should be readily appreciated that various device networks as discussed herein may employ one or more wireless, cable and / or fiber optic links to facilitate the transport of information through the network.

The term "user interface", as used herein, refers to an interface between a human user or operator and one or more devices that enables communication between the user and the devices. Examples of user interfaces that may be employed in various implementations of the present disclosure include, but are not limited to, switches, knobs, buttons, dials, sliders, a mouse, keyboard, numeric keypad, various types of game controllers (e.g. control knobs), trackballs, display screens, various types of graphical user interfaces (GUIs), touchscreens, microphones, and other types of sensors that can receive some type of human-generated stimulus and generate a signal in answer to it.

Reference is made to the following patents and patent applications:

US Patent No. 6,016,038, issued January 18, 2000, entitled "Multicolored LED Lighting Method and Apparatus;"

US Patent No. 6,211,626, issued April 3, 2001 to Lys et al. Entitled "Illumination Components;"

US Patent No. 6,548,967, issued April 15, 2003, entitled "Universal Lighting Network Methods and Systems;"

US Patent Application Serial Number 09 / 675,419, filed September 29, 2000, entitled "Systems and Methods for Calibrating Light Output by Light-Emitting Diodes;"

US Patent Application Serial Number 10 / 245,788, filed September 17, 2002, entitled "Methods and Apparatus for Generating and Modulating White Light Illumination Conditions;" US Patent Application Serial Number 10 / 325,635, filed December 19, 2002, entitled "Controlled Lighting Methods and Apparatus;" and

United States Patent Application Serial Number 11 / 010,840, filed December 13, 2004, entitled "Thermal Management Methods and Apparatus for Lighting Devices."

Brief Description of Drawings

Figure 1 is a diagram illustrating a lighting fixture according to one embodiment.

Figure 2 is a diagram illustrating a networked lighting system in accordance with one embodiment.

Figure 3 is a bottom perspective view, in partial section, of a lighting fixture in accordance with one embodiment.

Figure 4 is a bottom perspective view of the lighting fixture of Figure 3.

Figure 5 is a top perspective view of the lighting fixture of Figures 3 and 4.

Figure 6 is a partially exploded perspective bottom view of a lighting fixture in accordance with another embodiment.

Figure 7 is a perspective view of the light generation module and the socket combination according to one embodiment.

Figure 8 is a perspective sectional view of the light generation module of Figure 7.

Figure 9 is an exploded view of a light generation module and outlet according to one embodiment.

Figure 10 is a front view of an LED assembly of the light generation module of Figure 9, according to one embodiment.

Figure 11 is a rear view of the LED assembly of Figure 10.

Figure 12 illustrates a template for use in mounting the LED assembly of Figures 10 and 11, in accordance with one embodiment.

Figure 13 illustrates the LED subsets placed in the Figure 12 template.

Figure 14 illustrates the addition of a printed circuit board to the LED subsets of Figure 13.

Figure 15 is a perspective view of a secondary optical component according to a

Figure 16 is a perspective view of a secondary optical component according to another

Figure 17 is a perspective view of the secondary optical component of Figure 16.

Figure 18 is a front perspective view of a light generation module that pushes the ornamental features of the module, in accordance with the embodiment.

Figure 19 is a rear perspective view of a light generation module according to one embodiment.

Figure 20 is a side view of a light generation module according to one embodiment.

Figure 21 is a top view of a light generation module according to one embodiment. Figure 22 is a cross-sectional view taken along line 22-22 of Figure 21.

Figure 23 is a perspective view of the light generation module of Figure 21.

Figure 24 is a rear view of the light generation module of Figure 21.

Figure 25 is a front view of a chassis of the light generation module of Figure 9, according to one embodiment.

Figure 26 is a rear view of the chassis of Figure 25.

Figure 27 is an exploded view of a light generation module in accordance with an alternative embodiment.

Figure 28 is another exploded view of the light generation module of Figure 27.

Figure 29 is a rear perspective view of a chassis of the light generation module of Figures 27 and 28, including electrical contacts and connections in accordance with one embodiment.

Figure 30 is a front perspective view of the chassis of Figure 29.

Figure 31 is a top view of the electrical connections present in the chassis of Figures 29 and 30, according to one embodiment.

Figure 32 is a perspective view of a light generation module including a heat sink in accordance with one embodiment.

Figure 33 is a cross-sectional view of the light generation module of Figure 32.

Figure 34 is an exploded view of a light generation module including a fan in accordance with one embodiment.

Figure 35 is an exploded view of a light generation module including a fan according to another embodiment.

Figure 36 is a perspective view of a heat sink for a light generation module.

Figure 37 is a top view of the heat sink of Figure 36.

Figure 38 is a cross-sectional view of the heat sink of Figure 36.

Figure 39 is a cross-sectional side view of a beam mount recessed lighting fixture in accordance with one embodiment.

Figure 40 is a perspective view of a beam mount recessed lighting fixture in accordance with one embodiment.

Figure 41 shows a light generation module that is extracted from a light fixture embedded in a beam.

Figure 42 illustrates a light generation module that connects to an outlet in accordance with one embodiment. Figure 43 illustrates an outlet attached to a heat sink in accordance with one embodiment.

Figures 44A and 44B illustrate an alternate embodiment of a light generation module and socket.

Figure 45 is a cross-sectional side view of a coupling arrangement according to one embodiment. Figure 46 is a perspective view of another embodiment of a light generation module and outlet; Figure 47 is a front view of the light generation module of Figure 46.

Figure 48 is a perspective view of a rectangular light generating module and outlet in accordance with one embodiment.

Figure 49 is a perspective view of a lighting fixture configured to receive upward-facing light generation modules.

Figures 50 and 51 illustrate light generation modules and taps according to two alternative embodiments.

Figure 52 is a perspective view of a light generation module according to another embodiment. Figure 53 is a perspective view of a light generation module configured to face upward.

Figure 54 is a cross-sectional view of the light generation module of Figure 53 and an associated tap. Figure 55 is a cross-sectional view of a lighting fixture that includes two upward-facing light generation modules.

Figures 56A-56E illustrate various embodiments of upward facing light generation modules. Figure 57 is an exploded perspective view of a light generation module according to one embodiment.

Figure 58 is a perspective view of a lighting fixture according to one embodiment.

Figure 59 is a perspective view of a lighting fixture according to one embodiment.

Figure 60 shows a series of s positions as the light fixture is installed on an architectural feature.

Figures 61, 62 and 63 are perspective views of the light fixture of Figure 59.

Figure 64 is a perspective view of another embodiment of a lighting fixture.

Figures 65, 66 and 67 are perspective views of the light fixture of Figure 64.

Figure 68 is a perspective view of a lighting fixture mounted behind an architectural feature in accordance with one embodiment.

Figures 69A, 69B and 69C show three orthogonal views of the light fixture of Figure 68. Figure 70 shows a controller module for a light fixture in accordance with one embodiment. Figures 71A, 71B, 71C are perspective views of a controller module with various connectors.

Figures 72, 73, 74 and 75 illustrate the steps of installing a controller module in a housing in accordance with one embodiment.

Figure 76 illustrates a controller module that includes internal modular input and output interfaces. Figure 77 illustrates a schematic view of an auxiliary power source.

Detailed description

Various embodiments are described below, including certain embodiments particularly related to LED-based light sources. However, it should be appreciated that the present invention is defined simply by the appended claims and is not limited to any particular form of application, and that the various embodiments explained explicitly herein are primarily for illustrative purposes. For example, the various concepts discussed herein can be suitably implemented in a variety of environments involving LED-based light sources, other types of light sources that do not include LEDs, environments involving both LEDs, and other types of light sources. light in combination, and environments involving non-lighting related devices alone or in combination with various types of light sources.

Figure 1 illustrates an example of various components that may constitute a lighting fixture 100 in accordance with one embodiment. Some general examples of LED-based lighting fixtures including components similar to those described below in connection with Figure 1, can be found, for example, in US Patent No. 6,016,038, issued January 18, 2000 to Mueller et al. Entitled "Multicolored LED Lighting Method and Apparatus", and US Patent No. 6,211,626, issued April 3, 2001 to Lys et al., Entitled "Illumination Components ".

In various embodiments, the lighting fixture 100 shown in Figure 1 can be used alone or in conjunction with other similar lighting fixtures in a lighting fixture system (eg, as discussed below in connection with Figure 2). . Used alone or in combination with other lighting fixtures, the Lighting Fixture 100 can be used in a variety of applications including, but not limited to, indoor or outdoor lighting (e.g. architectural) and general lighting, lighting direct or indirect objects or spaces, theatrical lighting or other entertainment-based special effects, decorative lighting, security-oriented lighting, lighting associated with (or lighting of) displays and / or merchandise (for example, for advertising purposes and / or in retail / consumer environments), combination lighting or lighting and communication systems, etc., as well as for various indications, displays and informational purposes.

In one embodiment, the lighting fixture 100 shown in Figure 1 may include one or more light sources 104A, 104B, 104C, and 104D (collectively shown 104), wherein one or more of the light sources Light can be an LED-based light source that includes one or more light-emitting diodes (LEDs). In one aspect of this embodiment, two or more of the light sources can be adapted to generate radiation of different colors (eg, red, green, blue); In this regard, as explained above, each of the different colored light sources generates a different source spectrum that constitutes a different "channel" of a "multi-channel" lighting fixture. Although Figure 1 shows four light sources 104A, 104B, 104C, and 104D, it should be appreciated that the lighting fixture is not limited in this regard, as different numbers and various types of light sources (all light sources based on LEDs, LED-based and non-LED-based light sources in combination, etc.) adapted to generate radiation of a variety of different colors, essentially including white light, can be employed in lighting fixture 100, as explained below .

As shown in Figure 1, the lighting fixture 100 may also include a controller 105 that is configured to output one or more control signals to drive the light sources in order to generate various light intensities from the light sources. . For example, in one implementation, controller 105 may be configured to output at least one control signal for each light source in order to independently control the intensity of light (eg, radiant power in lumens) generated by each light source; alternatively, controller 105 can be configured to output one or more control signals to collectively control a group of two or more identically light sources. Some examples of control signals that can be generated by the controller to control light sources include, but are not limited to, pulse modulated signals, pulse width modulated (PWM) signals, pulse width modulated (PAM) signals , pulse code modulated (PCM) signals, analog control signals (eg, current control signals, voltage control signals), combinations and / or modulations of the above signals or other control signals. In one aspect, particularly in relation to LED-based sources, one or more modulation techniques provide variable control through the use of a fixed current level applied to one or more LEDs; in order to mitigate possible undesirable or unpredictable variations in the LED output that can arise if a variable LED drive current is employed. In one aspect, the controller 105 can control other dedicated circuits (not shown in Figure 1) which in turn control the light sources to vary their respective intensities.

In general, the intensity (radiant output power) of radiation generated by one or more light sources is proportional to the average power delivered to the light sources during a given period of time. Accordingly, one technique for varying the intensity of radiation generated by one or more light sources involves modulating the power supplied to (ie, the operating power of the light sources). For some types of light sources, including LED-based sources, this can be effectively achieved by using a pulse width modulation (PWM) technique.

In an exemplary implementation of a PWM control technique, for each channel of a lighting fixture a ^{predetermined} voltage source V is periodically applied through a given light source that constitutes the channel. Application of ^source voltage V can be accomplished through one or more switches, not shown in Figure 1, controlled by controller 105. While ^source voltage V is applied across the light source, a fixed predetermined current ^{I from a source} (for example, determined by a current regulator, also shown in Figure 1) is allowed to flow through the light source. Again, remember that an LED-based light source can include one or more LEDs, so that the voltage ^{V from source} can be applied to a group of LEDs that make up the source, and the current ^{Ide to source} can be drawn by the group. of LED. The fixed voltage ^{Vde to source} across the light source when energized, and the regulated current ^{Ide to source} drawn by the light source when energized, determines the amount of instantaneous operating power ^P from the light source source Pde ^{a source} = ^{V of the source Ide the source} ). As mentioned above, for LED-based light sources, the use of a regulated current mitigates any undesirable or unpredictable variations in LED output that can arise if a variable LED drive current is employed.

According to the PWM technique, by periodically applying the voltage ^{V from a source} to the light source and varying the time that the voltage is applied during a given on-off cycle, the average power delivered to the light source throughout time (the average operating power) can be modulated. In particular, the controller 105 may be configured to apply the voltage ^{V from a source} to a given light source in a pulsed manner (for example, by outputting a control signal that operates one or more switches to apply the voltage to the source of light), preferably at a frequency greater than that capable of being detected by the human eye (eg, greater than about 100 Hz). In this way, an observer of the light generated by the light source does not perceive the discrete on and off cycles (commonly referred to as the "flicker effect"), but the integrating function of the eye essentially perceives the continuous generation of light. By adjusting the pulse width (ie, timed or "duty cycle") of the control signal on and off cycles, the controller varies the average amount of time the light source is energized in a period of given time and, therefore, the average operating power of the light source varies. In this way, the perceived brightness of the light generated by each channel in turn can be varied.

As explained in more detail below, controller 105 can be configured to control each different light source channel of a multi-channel lighting fixture at a predetermined average operating power to provide a corresponding radiant output power for the light generated by each channel. Alternatively, controller 105 may receive instructions (eg, "lighting commands") from a variety of sources, such as a user interface 118, a signal source 124, or one or more communication ports 120, which specify the powers prescribed operating parameters for one or more channels and therefore the corresponding radiant output powers for the light generated by the respective channels. By varying the prescribed operating powers for one or more channels (for example, according to different instructions or lighting commands), the lighting fixture can generate different perceived colors and brightness levels of light.

In one embodiment of the lighting fixture 100, as mentioned above, one or more of the light sources 104A, 104B, 104C, and 104D shown in Figure 1 may include a group of multiple LEDs or other types of light sources (e.g. example, several parallel and / or serial connections of LEDs or other types of light sources) that are controlled together by the controller 105. Furthermore, it should be appreciated that one or more of the light sources may include one or more LEDs that match to generate radiation that has any of a variety of spectra (i.e. wavelengths or bands of wavelengths), including, but not limited to, various visible colors (essentially including white light), various color temperatures from white, ultraviolet or infrared light. LEDs that have a variety of spectral bandwidths (eg, narrow band, wider band) can be employed in various implementations of the lighting fixture 100.

In another aspect of the lighting fixture 100 shown in Figure 1, the lighting fixture 100 can be constructed and arranged to produce a wide range of variable color radiation. For example, in one embodiment, the lighting fixture 100 may be particularly arranged such that light of controllable variable intensity (i.e., variable radiant power) generated by two or more of the light sources is combined to produce a light of mixed color (including essentially white light that has a variety of color temperatures). In particular, the color (or color temperature) of mixed color light can vary by varying one or more of the respective intensities (radiant output power) of the light sources (e.g., in response to one or more more control signals output by controller 105). Additionally, controller 105 may be particularly configured to provide control signals to one or more of the light sources in order to generate a variety of multi-color (or multi-color temperature) static or time-varying (dynamic) lighting effects. To this end, in one embodiment, the controller may include a processor 102 (eg, a microprocessor) programmed to provide said control signals to one or more of the light sources. In various aspects, processor 102 can be programmed to provide such control signals autonomously, in response to lighting commands, or in response to various user or signal inputs.

Thus, the lighting fixture 100 can include a wide variety of LED colors in various combinations, including two or more red, green, and blue LEDs to produce a mix of colors, as well as one or more LEDs to create different colors. and white light color temperatures. For example, red, green, and blue can be mixed with amber, white, UV, orange, IR, or other colors of the LEDs. Such combinations of different colored LEDs in light fixture 100 can facilitate accurate reproduction of a number of desirable spectra of lighting conditions, examples of which include, but are not limited to, a variety of outdoor daylight equivalents in different times of day, various indoor lighting conditions, lighting conditions to simulate a complex multi-color background, and the like. Other desirable lighting conditions can be created by extracting particular pieces of the spectrum that can be specifically absorbed, dimmed, or reflected in certain environments.

As shown in Figure 1, the lighting fixture 100 may also include a memory 114 to store various information. For example, memory 114 can be used to store one or more lighting commands or programs for execution by processor 102 (for example, to generate one or more control signals for light sources), as well as various types of data. Useful for generating variable color radiation (eg calibration information, explained later). Memory 114 may also store one or more particular identifiers (eg, a serial number, an address, etc.) that can be used locally or at the system level to identify lighting fixture 100. In various embodiments, such identifiers may be programmed by a manufacturer, for example, and may or may not be modified thereafter (for example, through some kind of user interface located on the lighting fixture, through one or more data or control signals received by lighting fixture, etc.). Alternatively, such identifiers may be determined at the time of initial use of the lighting fixture in the field, and again may or may not be modified thereafter.

A problem that may arise in connection with the control of multiple light sources in the light fixture 100 of Figure 1, and the control of multiple light fixtures 100 in a lighting system (for example, as explained later in In relation to Figure 2), it refers to potentially noticeable differences in light output between substantially similar light sources. For example, given two nearly identical light sources that are driven by respective identical control signals, the actual intensity of the light output (eg, radiant power in lumens) by each light source can be measurably different. Such a difference in light output can be attributed to several factors including, for example, slight manufacturing differences between light sources, normal wear and tear over time of light sources that may alter the respective spectra differently. of the radiation generated, etc. For the purposes of the present discussion, light sources for which a particular relationship between a control signal and the resulting radiant output power is not known are referred to as "uncalibrated" light sources.

The use of one or more uncalibrated light sources in the lighting fixture 100 shown in Figure 1 can result in the generation of light that has an unpredictable or "uncalibrated" color or color temperature. For example, consider a first that includes an uncalibrated first red light source and an uncalibrated first blue light source, each controlled in response to a corresponding lighting command that has an adjustable parameter ranging from zero to 255 ( 0-255), where the maximum value of 255 represents the maximum available radiant power (i.e. 100%) of the light source. For the purposes of this example, if the red command is set to zero and the blue command is non-zero, blue light is generated, whereas if the blue command is set to zero and the red command is non-zero, it is generates red light. However, if both commands vary from non-zero values, a significantly different variety of colors can be produced (for example, in this example at least many different shades of purple are possible). In particular, perhaps a particular desired color (for example, lavender) is given by a red command that has a value of 125 and a blue command that has a value of 200.

Now consider a second that includes a second uncalibrated red light source substantially similar to the first uncalibrated red light source in the first, and a second uncalibrated blue light source substantially similar to the first uncalibrated blue light source in the first lighting fixture. As explained above, even if both uncalibrated red light sources are controlled in response to the respective identical commands, the actual intensity of the light output (e.g. radiant power in lumens) for each red light source can be measurably different. Likewise, even if both uncalibrated blue light sources are controlled in response to the respective identical commands, the actual light output from each blue light source can be significantly different.

With the foregoing in mind, it should be appreciated that if multiple uncalibrated light sources are used in combination in lighting fixtures to produce mixed color light as explained above, the observed color (or color temperature) of the light produced by different lighting fixtures under identical control conditions can be significantly different. Specifically, consider again the "lavender" example above; the "first lavender" produced by the first with a red command that has a value of 125 and a blue command that has a value of 200 may in fact be significantly different than a "second lavender" produced by the second with a red command that has a value of 125 and a blue command that has a value of 200. More generally, the first and second light fixtures generate uncalibrated colors by virtue of their uncalibrated light sources.

In view of the foregoing, in one embodiment of the present disclosure, the lighting fixture 100 includes calibration means to facilitate the generation of light with a calibrated color (eg, predictable, reproducible) at a given time. In one aspect, the calibration means is configured to adjust (eg, scale) the light output of at least some light sources of the lighting fixture to compensate for perceptible differences between similar light sources used in different fixtures. illumination.

For example, in one embodiment, the processor 102 of the lighting fixture 100 is configured to control one or more of the light sources to emit radiation at a calibrated intensity that corresponds substantially by default to a control signal for the light sources. light sources. As a result of mixed radiation having different spectra and respective calibrated intensities, a calibrated color is produced. In one aspect of this embodiment, at least one calibration value for each light source is stored in memory 114, and the processor is programmed to apply the respective calibration values to the control signals (commands) for the light sources. in order to generate the calibrated intensities.

In one aspect of this embodiment, one or more calibration values may be determined once (eg, during a manufacturing / testing phase of s) and stored in memory 114 for use by processor 102. In another aspect, the Processor 102 may be configured to derive one or more calibration values dynamically (eg, from time to time) with the aid of one or more photosensors, for example. In various embodiments, the photosensors can be one or more external components coupled to the light fixture, or alternatively they can be integrated as part of the light fixture itself. A photosensor is an example of a signal source that can be integrated or associated with the lighting fixture 100, and monitored by the processor 102 in relation to the operation of the lighting fixture. Other examples of such signal sources are discussed below, in connection with the signal source 124 shown in Figure 1.

An exemplary procedure that may be implemented by processor 102 to derive one or more calibration values includes applying a reference control signal to a light source (eg, corresponding to maximum radiant power output), and measuring (eg, through one or more photosensors) a radiation intensity (eg, the radiant power drop in the photosensor) generated by the light source. The processor can be programmed to then make a comparison of the measured intensity and at least one reference value (eg, representing an intensity that would be nominally expected in response to the reference control signal). Based on such a comparison, the processor can determine one or more calibration values (eg, scale factors) for the light source. In particular, the processor can derive a calibration value such that, when applied to the reference control signal, the light source emits radiation with an intensity corresponding to the reference value (ie, an "expected" intensity. , for example, the expected radiant power in lumens).

In various aspects, a calibration value can be derived for a full range of control signals / output intensities for a given light source. Alternatively, multiple calibration values can be derived for a given light source (ie, a series of "samples" of calibration values can be obtained) that are applied respectively over different ranges of signal intensity / control output, to approximate a Nonlinear calibration function in a piecewise linear manner.

In another aspect, as also shown in Figure 1, the lighting fixture 100 may optionally include one or more user interfaces 118 that are provided to facilitate any of a number of user selectable settings or functions (e.g., generally by controlling the light output of the light fixture 100, changing and / or selecting various pre-programmed lighting effects that the light fixture will generate, changing and / or selecting various parameters of the selected lighting effects, by setting particular identifiers such as addresses or serial numbers for the lighting fixture, etc.). In various embodiments, communication between user interface 118 and the lighting fixture can be accomplished through wire or cable, or wireless transmission.

In one implementation, the lighting fixture controller 105 monitors the user interface 118 and controls one or more of the light sources 104A, 104B, 104C, and 104D based at least in part on the operation of the interface by the user. . For example, controller 105 can be configured to respond to user interface operation by originating one or more control signals to control one or more of the light sources. Alternatively, processor 102 may be configured to respond by selecting one or more preprogrammed control signals stored in memory, modifying control signals generated by running a lighting program, selecting and executing a new lighting program from memory, or in any other way affect the radiation generated by one or more of the light sources.

In particular, in one implementation, the user interface 118 may constitute one or more switches (eg, a standard wall switch) that interrupt power to the controller 105. In one aspect of this implementation, the controller 105 is configured to monitor the power controlled by the user interface, and in turn controlling one or more of the light sources based at least in part on a duration of a power interruption caused by the operation of the user interface. As explained above, the controller can be particularly configured to respond to a predetermined duration of a power interruption, for example, selecting one or more pre-programmed control signals stored in memory, modifying the control signals generated by the execution of a program lighting, select and run a new lighting program from memory, or otherwise affect radiation generated by one or more of the light sources.

Figure 1 also illustrates that the lighting fixture 100 can be configured to receive one or more signals 122 from one or more other signal sources 124. In one implementation, the lighting fixture controller 105 may use the signals 122, either alone. or in combination with other control signals (for example, signals generated when executing a lighting program, one or more outputs from a user interface, etc.), to control one or more of the light sources 104A, 104B, 104C and 104D in a manner similar to that given above in relation to the user interface.

Examples of signals 122 that can be received and processed by controller 105 include, but are not limited to, one or more audio signals, video signals, power signals, various types of data signals, signals representing information obtained from a network (eg Internet), signals representing one or more detectable / detected conditions, lighting fixture signals, signals consisting of modulated light, etc. In various implementations, signal sources 124 can be remotely located from light fixture 100, or included as a component of the light fixture. In one embodiment, a signal from one light fixture 100 could be sent over a network to another light fixture 100.

Some examples of a signal source 124 that may be employed or used in connection with the lighting fixture 100 of Figure 1 include any of a variety of sensors or transducers that generate one or more signals 122 in response to some stimulus. Examples of such sensors include, but are not limited to, various types of ambient condition sensors, such as thermally sensitive sensors (e.g. temperature, infrared), humidity sensors, motion sensors, photosensors / light sensors (e.g. photodiodes, sensors sensitive to one or more particular spectra of electromagnetic radiation such as spectroradiometers or spectrophotometers, etc.), various types of cameras, sound or vibration sensors or other pressure / force transducers (eg microphones, piezoelectric devices) and the like .

Additional examples of a signal source 124 include various measurement / detection devices that monitor signals or electrical characteristics (eg, voltage, current, power, resistance, capacitance, inductance, etc.) or chemical / biological characteristics (eg, acidity. , presence of one or more particular chemical or biological agents, bacteria, etc.) and provide one or more signals 122 based on measured values of the signals or characteristics. Still other examples of a signal source 124 include various types of scanners, image recognition systems, speech or other sound recognition systems, robotics and artificial intelligence systems, and the like. A signal source 124 could also be a lighting fixture 100, another controller or processor, or any of the many signal generating devices available, such as media players, MP3 players, computers, DVD players, CD players, fountains. television signal sources, camera signal sources, microphones, speakers, telephones, cell phones, instant messaging devices, SMS devices, wireless devices, personal organizing devices and many others.

In one embodiment, lighting fixture 100 shown in Figure 1 may also include one or more optical elements 130 to optically process radiation generated by light sources 104A, 104B, 104C, and 104D. For example, one or more optical elements can be configured to change one or both of a spatial distribution and a direction of propagation of the generated radiation. In particular, one or more optical elements can be configured to change a diffusion angle of the generated radiation. In one aspect of this embodiment, one or more optical elements 130 may be particularly configured to variably change one or both of a spatial distribution and a direction of propagation of the radiation generated (eg, in response to some electrical and / or mechanical stimulus). . Examples of optical elements that can be included in lighting fixture 100 include, but are not limited to, reflective materials, refractive materials, translucent materials, filters, lenses, mirrors, and fiber optics. Optical element 130 may also include phosphorescent material, luminescent material, or other material capable of responding to or interacting with generated radiation.

As also shown in Figure 1, lighting fixture 100 may include one or more communication ports 120 to facilitate coupling of lighting fixture 100 to any of a variety of other devices. For example, one or more communication ports 120 can facilitate the coupling of multiple lighting fixtures such as a networked lighting system, where at least some of the lighting fixtures are addressable (for example, they have particular identifiers or addresses). and respond to particular data transported through the network.

In particular, in a networked lighting system environment, as explained in greater detail below (for example, in relation to Figure 2), since data is communicated over the network, the controller 105 of each coupled to the network can be configured to respond to particular data (eg lighting control commands) belonging to it (eg in some cases as dictated by the respective identifiers of the networked lighting fixtures). Once a given controller identifies particular data intended for it, it can read the data and, for example, change the lighting conditions produced by its light sources according to the received data (for example, by generating control signals suitable for light sources). In one aspect, the memory 114 of each network coupled may be loaded, for example, with a table of lighting control signals that correspond to the data that the processor 102 of the network receives. controller. Once the processor 102 receives data from the network, the processor can refer to the table to select the control signals that correspond to the received data, and control the light sources of the lighting fixture accordingly.

In one aspect of this embodiment, the processor 102 of a given lighting fixture, whether or not coupled to a network, can be configured to interpret lighting instructions / data that are received in a DMX protocol (as explained, for example, in US Patents 6,016,038 and 6,211,626), which is a lighting command protocol conventionally used in the lighting industry for some programmable lighting applications. For example, in one respect, when considering a lighting fixture based on red, green, and blue LEDs for the time being (ie, an "RGB" fixture), a lighting command in the DMX protocol may specify each of a red channel command, a green channel command, and a blue channel command as eight-bit data (that is, one byte of data) representing a value from 0 to 255. The maximum value of 255 for any of the color channels instructs processor 102 to control the corresponding light sources to operate at the maximum power available (i.e., 100%) for the channel, thereby generating the maximum radiant power available for that color ( such a command structure for an RGB lighting fixture is commonly referred to as 24-bit color control). Therefore, a command of the format [R, G, B] = [255, 255, 255] would cause the light fixture to generate the maximum radiant power for each of the red, green, and blue lights (when creating this white light mode).

However, it should be appreciated that lighting fixtures suitable for the purposes of the present disclosure are not limited to a DMX command format, as lighting fixtures according to various embodiments may be configured to respond to other types of communication protocols. / lighting command formats in order to control their respective light sources. In general, processor 102 can be configured to respond to lighting commands in a variety of formats expressing prescribed operating powers for each different channel of a multichannel lighting fixture according to some scale representing maximum to maximum operating power available. for each channel.

In one embodiment, the lighting fixture 100 of Figure 1 may include and / or couple to one or more power supplies 108. In various aspects, examples of power supplies 108 include, but are not limited to, power supplies. AC power sources, DC power sources, batteries, solar-based power sources, thermoelectric or mechanical power sources, and the like. Furthermore, in one aspect, the power sources 108 may include or be associated with one or more power conversion devices that convert the power received by an external power source into a form suitable for the operation of the lighting fixture 100.

Although not explicitly shown in Figure 1, but as explained in greater detail below, lighting fixture 100 may be implemented in any of a number of different structural configurations in accordance with various embodiments of the present disclosure. Examples of such configurations include, but are not limited to, an essentially linear or curvilinear configuration, a circular configuration, an oval configuration, a rectangular configuration, combinations of the above, various other geometric-shaped configurations, various two-dimensional or three-dimensional configurations, and Similar. A given lighting fixture may also have any of a variety of mounting arrangements for the light sources, and housing / cover arrangements for partially or fully enclosing the light sources, and / or electrical and mechanical connection configurations.

Furthermore, one or more optical elements as explained above can be partially or fully integrated with a housing / cover arrangement for the lighting fixture. Additionally, the various lighting fixture components discussed above (e.g. processor, memory, power, user interface, etc.), as well as other components that can be associated with the light fixture in different implementations (e.g. sensors / transducers, other components to facilitate communication to and from the unit, etc.) can be packaged in various ways; for example, in one aspect, any sub-assembly or all of the various lighting fixture components, as well as other components that can be associated with the lighting fixture, may be packaged together. In another aspect, the packaged subsets of components can be electrically and / or mechanically coupled in various ways, as explained below.

Figure 2 illustrates an example of a network lighting system 200 in accordance with one embodiment of the present disclosure. In the embodiment of Figure 2, a number of lighting fixtures or accessories 100, similar to those discussed above in connection with Figure 1, are coupled together to form the networked lighting system. However, it should be appreciated that the particular configuration and arrangement of lighting fixtures shown in Figure 2 is for illustrative purposes only, and that the disclosure is not limited to the particular topology of the system shown in Figure 2.

Additionally, although not explicitly shown in Figure 2, it should be appreciated that network lighting system 200 can be flexibly configured to include one or more user interfaces, as well as one or more signal sources such as sensors / transducers. For example, one or more user interfaces and / or one or more fonts of signals such as sensors / transducers (as explained above in relation to Figure 1) can be associated with one or more of the lighting fixtures of the networked lighting system 200. Alternatively (or in addition to the above), one or more interfaces User and / or one or more signal sources can be implemented as "independent" components in the networked lighting system 200. Whether they are independent components or particularly associated with one or more lighting fixtures 100, these devices can be "shared" by the lighting fixtures of the networked lighting system. Stated differently, one or more user interfaces and / or one or more signal sources such as sensors / transducers, can constitute "shared resources" in the networked lighting system that can be used in connection with the control of one or more system lighting fixtures.

As shown in the embodiment of Figure 2, the lighting system 200 may include one or more s controllers (hereinafter "LUCs") 208A, 208B, 208C, and 208D, in which each LUC is responsible for communicating and controlling generally one or more lighting fixtures 100 attached to it. Although Figure 2 illustrates a lighting fixture 100 coupled to each LUC, it should be appreciated that the disclosure is not limited in this regard, as different numbers of lighting fixtures 100 can be attached to a given LUC in a variety of different configurations (connections serial, parallel connections, combinations of serial and parallel connections, etc.) by using a variety of different communication media and protocols.

In the system of Figure 2, each LUC in turn can be coupled to a central controller 202 that is configured to communicate with one or more LUCs. Although Figure 2 shows four LUCs coupled to central controller 202 via a generic connection 204 (which may include any number of a variety of conventional coupling, switching, and / or network devices), it should be appreciated that, in accordance with various embodiments , different numbers of LUCs can be coupled to the central controller 202. In addition, in accordance with various embodiments of the present disclosure, the LUCs and the central controller can be coupled in a variety of configurations using a variety of different communication media and protocols. to form the networked lighting system 200. Furthermore, it should be appreciated that the interconnection of the LUCs and the central controller, and the interconnection of the lighting fixtures to the respective LUCs, can be accomplished in different ways (for example, by using different configurations, media and protocols).

For example, in accordance with one embodiment of the present disclosure, the central controller 202 shown in Figure 2 may be configured to implement Ethernet-based communications with the LUCs, and the LUCs may in turn be configured to implement DMX-based communications with lighting fixtures 100. In particular, in one aspect of this embodiment, each LUC can be configured as an Ethernet-based addressable controller and consequently can be identified with the central controller 202 via a particular unique address (or a group address only) by using an Ethernet-based protocol. In this manner, central controller 202 can be configured to support Ethernet communications over the network of coupled LUCs, and each LUC can respond to communications intended for it. In turn, each LUC can communicate lighting control information to one or more lighting fixtures attached to it, for example, through a DMX protocol, based on Ethernet communications with the central controller 202.

More specifically, in accordance with one embodiment, the LUCs 208A, 208B, 208C shown in Figure 2 can be configured to be "smart" at the time the central controller 202 can be configured to communicate higher-level commands to the LUCs. that need to be interpreted by the LUCs before the lighting control information can be forwarded to the lighting fixture 100. For example, a lighting system operator may want to generate a color-changing effect that varies the colors of the lighting fixture. in a way that creates the appearance of a spreading rainbow of colors ("rainbow chase"), giving the lighting fixtures a particular location relative to others. In this example, the operator can provide a simple instruction to the central controller 202 to accomplish this, and in turn the central controller can communicate with one or more LUCs using an Ethernet-based high-level protocol command to generate a " rainbow chase. " The command can contain information about time, intensity, hue, saturation or other relevant information, for example. When a given LUC receives such a command, it can then interpret the command and further communicate commands to one or more light fixtures by using a DMX protocol, in response to which the respective light fixture sources are controlled via any of a variety of signaling techniques (eg, PWM).

It should be appreciated again that the above example of using multiple different communication implementations (eg, Ethernet / DMX) in a lighting system in accordance with one embodiment of the present disclosure is for illustrative purposes only, and that the disclosure is not limited. to this particular example.

From the foregoing, it can be seen that one or more lighting fixtures as explained above are capable of generating highly controllable variable color light over a wide range of colors, as well as variable color temperature white light over a wide range of temperatures. colour.

Figure 3 illustrates a perspective, partial cutaway view of a lighting fixture 100 having a modular construction in accordance with one embodiment of the disclosure. A 300 light generating module, such as an LED-based module, can be connected and disconnected from a mating socket 302. The socket 302 is fixedly coupled to a housing 304 (for example, via spindles inserted through holes 306 in the flanges 308 of socket 302) , and the light generation module 300 can be easily installed in the housing 304, through the socket 302, to form the lighting fixture 100. In some exemplary implementations, the housing 304 can serve as a heat sink (for example, the housing can be formed from a significantly thermally conductive material, such as die-cast or extruded metal). The lighting fixture 100 of this embodiment further includes a controller module 105 as a separate component from the light generation module 300 that can be permanently or replaceable mounted within the housing 304.

In some embodiments, the light generation module 300 can be implemented in a relatively simple manner, including one or more light sources and LED-based connectors for connecting the LEDs to the drive signals and operating power. In other embodiments, the light generation module 300 can include a variety of components, including, but not limited to, heat dissipation elements, built-in memory and / or control features, and optical components. When the light generation module 300 is connected to the housing 304 through the socket 302, the light generation module 300 can be electrically connected to the controller module 105 through a connector 310.

In some embodiments, as illustrated in Figure 3, the general shape of the light generation module 300 may resemble a hockey puck. For example, in some embodiments, a circular light generation module may have a diameter of about three inches and a thickness of about one inch. In some embodiments, the thickness of the light generation module near the center of the light generation module is greater than the thickness near the edges.

Figure 4 shows a perspective view of a fully assembled modular lighting fixture 100 similar to that shown in Figure 3, including a reflector cone 314 and mounting brackets 316. The reflector cone 314 may be removable to facilitate installation. replacement of light generation module 300 and / or controller module 105.

Figure 5 shows a top perspective view of the fully assembled lighting fixture 100. In some embodiments of the lighting fixture, the lighting fixture 100 includes heat dissipation elements 320 (fins in this embodiment) to transfer heat away from the light generation module 300 and / or the controller module 105. For example, the socket 302 It can be formed of a thermally conductive material to facilitate heat transfer from light generation module 300 to housing 304, which in turn transfers heat to fins or other suitable heat dissipation elements. Knockout holes for wiring 322 and a wiring compartment door 324 are also visible in this view. In some embodiments, separate heat dissipation elements (i.e., thermally insulated from heat dissipation elements that transfer heat away from the light generation module) are provided to transfer heat away from the controller module 105, while in other embodiments, the same heat dissipation elements transfer heat away from both the light generation module 300 and the controller module 105.

Figure 6 illustrates a perspective view of another embodiment of a modular lighting fixture 100-1 that includes a housing 304-1 having a shape that differs from the embodiment illustrated in Figures 3-5. The embodiment illustrated in Figure 6 may be useful for installation and / or removal through holes in ceilings or walls, as explained in more detail below. Similar to the embodiment of Figures 3-5, the lighting fixture 100-1 includes a light generation module 300, an outlet 302, and a reflector cone 314.

In some embodiments, the controller module 105 associated with a given lighting fixture may be arranged internally within the housing, as illustrated in Figure 3, while, in other embodiments, the controller module 105 may be arranged externally (for example, in a junction box such as the junction box shown in Figure 68).

Figures 7 and 8 illustrate perspective views of a mounted light generation module 300-3 attached to a socket 302-3 of a lighting fixture in accordance with one embodiment of the disclosure. The exemplary embodiment depicted in Figures 7 and 8 is explained in more detail below with reference to Figures 27-31. Figure 9 illustrates an exploded perspective view of a light generation module 300, a socket 302, and a gripper ring 332, in accordance with another embodiment. The illustrations in Figures 7-9 depict two exemplary embodiments of a light generation module, and each component described with reference to Figures 7-9 is not necessarily required to form a light generation module in accordance with other embodiments.

Referring to Figure 9, the components of the light generation module 300 according to one embodiment include a light path faceplate 330 (eg, transparent or translucent), the gripper ring 332, the secondary optical components 334 , a chassis 336, an LED assembly 338, and an aluminum base plate 340. In the embodiment of Figure 9, the chassis 336 is configured as a metal die-cast component to facilitate heat transfer (in other embodiments, such as explained below with reference to Figures 27-31, a Similar chassis can be formed as an injection molded component made of plastic.) Chassis 336 is configured to support a number of secondary optical components 334.

In the module shown in Figure 9, the LED 338 assembly includes multiple hexagonal shaped LED subsets 344 (hereinafter referred to as "LED hex subsets") that are sandwiched between a thermally conductive base plate (340 aluminum base plate). ) and a printed circuit board substrate 346. The combination of the base plate 340, the hexagonal subassemblies 344 and the printed circuit board 346 may in turn be covered with an electrically and thermally conductive insulating layer 348 and coupled to the chassis 336 (eg, through spindles that pass through holes in the base plate and mate with threaded holes in chassis 336). The light path faceplate 330 is also optionally employed in the light generation module 300, and may be held in place by the gripper ring 332. The base plate 340 may include a cutout or through hole 350 to accommodate a connector 352 that connects to LED assembly 338. Referring again to Figure 3, in one implementation, connector 352 essentially serves as a first part of the electrical connector that mates with connector 310 in the accessory housing 304, connector which serves as a second complementary electrical connection part when the light generation module is installed in outlet 302.

Regarding heat management, dissipating heat through the front face (light exit face) of the light generating module can help thermal efficiency. When mounting the light generation module 300 of Figure 9, an electrically and thermally conductive insulating layer 348 may be employed between the LED assembly 338 and the chassis 336, as illustrated in Figure 9. In this way, heat transfer can occur through the front of the LED assembly (through printed circuit board 346, thermal conduction layer 348, and die-cast metal chassis 336), as well as through the rear of the LED assembly 338 (via optional thermal paste or grease, the motherboard 340, and ultimately to a case or other heat sink to which the motherboard can be attached, for example, see Figure 3). Components other than the chassis can be made of thermally conductive material, and several of the die-cast components can be painted / anodized black to facilitate heat transfer.

While the particular embodiment shown in Figures 7-9 illustrates a module accommodating six hexagonal LED subsets 344, it should be appreciated that the disclosure is not limited in this regard, as different configurations and numbers of LED subsets 344 may be employed. in other embodiments. Furthermore, in any of the embodiments described herein, an LED subassembly with a shape other than a hexagonal shape may be substituted for a hexagonal LED subassembly.

Figure 10 is a close-up front view of the LED assembly 338 of the light generation module 300 illustrated in Figure 9. In particular, Figure 10 illustrates six hexagonal subsets of LEDs 344 (eg, OSTAR® subsets, which are described in more detail below) coupled to a printed circuit board 346. As can be seen in Figure 10, each hexagonal subassembly 344 includes six individual LED junctions 358 that are electrically interconnected in the subassembly to operate simultaneously in response to a signal. drive applied to the sub-assembly. Each subassembly also includes a primary optics 360 which can be a lens configured to provide a Lambertian beam shape. As explained below, the hexagonal subassemblies 344 mate to a rear or bottom surface of the printed circuit board 346, and the printed circuit board is configured with through holes for the primary optics 360 of each hexagonal subassembly 344. The large ones Through holes 364 in printed circuit board 346 facilitate attachment of base plate 340 and LED assembly 338 to chassis 336.

In one implementation, the LED 344 hex subassemblies can be components manufactured under the name OSTAR® by OSRAM Opto Semiconductors GmbH (see http://www.osram-os.com/ostar-lighting). Each OSTAR® 344 subassembly can provide up to 400 lumens of radiation at an operating current of 700 milliamps from six LED junctions that are driven simultaneously to provide white light with a color temperature of approximately 5,600 degrees Kelvin.

In one aspect, the hexagonal LED subsets 344, exemplified by OSTAR® products, may be implemented as "chip-on-board" LED modules or subsets. In an on-board chipset, an unpackaged silicon mold (i.e. semiconductor chip) is connected directly to the surface of a substrate (e.g. FR-4 printed circuit board, flexible printed circuit board , a ceramic substrate, etc.) and a wire bonded to form electrical connections to the substrate. Later, an epoxy resin or silicone coating is applied to the top of the mold / chip to encapsulate and protect the mold / chip. In an exemplary configuration of OSTAR®, the hexagonal LED subassembly includes four or six semiconductor LED chips mounted on a ceramic substrate, which in turn mounts directly to a surface of a metal core printed circuit board. To protect semiconductor chips from environmental influences such as humidity, the chips can be coated with a transparent silicone encapsulant.

Each OSTAR® includes an aluminum core substrate to facilitate thermal dissipation, on top of which are arranged electrical connections, LED junctions (semiconductor chips), and an integrated primary lens (as an example of a primary optics) to provide a Lambertian beam shape. The substrate in hexagonal shape is provided with multiple perimeter cutouts and / or through holes to allow attachment of the subassemblies via spindles to the 336 chassis and also to facilitate registration of the individual hex subassemblies to a common substrate, as well as optional secondary optics. Electrical connections to hex subassemblies can be made by grounding the contacts on top of the subassembly or by employing spring-type contacts. An aluminum substrate of the OSTARs® can, in some embodiments, be placed in direct contact with thermally conductive features, such as base plate 340, socket 302, and / or accessory housing 304, to facilitate a thermal conduction path away from the LED subsets.

While an example of a hexagonal LED subassembly made up of an OSTAR® component was explained above, it should be appreciated that the disclosure is not limited in this regard, as hexagonal LED subassemblies having other configurations, including one or more LEDs configured to Generating essentially white light having a variety of color temperatures and / or a light having a variety of non-white colors can be employed in light generating modules according to various embodiments.

In particular, in an exemplary implementation, one or more LED subsets of a given LED array may generate white light having a first color temperature, and one or more of the LED subsets may generate white light with a different second color temperature. , so that a given light generation module can be configured as a multi-channel LED base light source. Similarly, a lighting fixture including such a multi-channel light generation module can be configured with a multi-channel controller module configured to independently control the multiple channels of the multi-channel light generation module. In this way, the light generation module can be configured to generate any of the different color temperatures, or an arbitrary combination of the different color temperatures. Therefore, lighting fixtures in accordance with the present disclosure can be particularly configured to provide controllable variable color temperature white light from a single light generation module.

Figure 11 is a close-up rear view of the LED assembly 338, showing the rear mounting of the hexagonal subassemblies 344 to the printed circuit board 346, as well as the electrical connector 352 that provides one or more drive signals to operate the subassemblies. hexagonal. From Figure 11, a rear surface 368 of the aluminum substrate of each hexagonal subassembly 344 is clearly visible. Referring back to Figure 9, in one aspect of this embodiment, the rear surfaces of the hexagonal subassemblies engage the aluminum base plate 340 to facilitate heat transfer from the back (or bottom surface) of the hexagonal subassemblies. . In one implementation, thermal grease or paste can be used to adhere the base plate 340 to the LED assembly 338, so that the through holes 370 in the base plate 340 are aligned with the large through holes 364 in the printed circuit board 346 to facilitate securing the base plate and LED assembly to chassis 336. As mentioned above, base plate 340 may include a center cutout or through hole to allow separation of electrical connector 352.

From Figures 9-11, it can also be seen that the printed circuit board 346 includes a number of smaller registration through holes 372 that align with the semicircle cutouts 374 at the perimeters of the hexagonal subassemblies 344. These through holes 372 they facilitate coupling of the subassemblies to the printed circuit board 346, as discussed below in connection with Figures 12-14.

Figure 12 illustrates a "template" 380 that can be used to facilitate mounting of the LED assembly 338. The template 380 can be constructed of any rigid material, such as an aluminum plate. As shown in Figure 12, the aluminum plate can include a number of holes into which small pins 384 and large pins 386 are placed. As will be apparent from the discussion and the Figures below, the different sized pins ensure a registration. suitable between hex subassemblies 344 and printed circuit board 346.

More specifically, Figure 13 illustrates multiple hexagonal LED subsets 344 positioned on the small pins 384 of the template 380 shown in Figure 12 to keep the subsets flat and in proper positions. Once in position, the solder paste can be applied to the electrical contact pads 388 on the upper side of the subassemblies. As shown in Figure 14, the printed circuit board 346 is positioned on the template 380, over the subassemblies 344, by using the large pins 386 that pass through the large through holes 364 in the printed circuit board. 346. The printed circuit board also includes the smaller through holes 372 to accommodate the small pins 384.

One side of PCB 346 adjacent to the hexagonal subassemblies (i.e., the side opposite to that seen in Figure 14) includes the first electrical contacts (e.g., copper pads - not shown) , in positions complementary to the contact pads 388 on the hexagonal subassemblies 344, which provide both mechanical attachment points and electrical connections to the hexagonal subassemblies. In one implementation, these first electrical contacts have second counterpart electrical contacts 390 that appear on the opposite side of the printed circuit board 346 (the side in the view of Figure 14) and the pairs of contacts on opposite sides of the PCB. PCB can be connected through plated through holes 392 in the middle of the contacts. Consequently, once in position on the template, with the solder paste between the contact pads 388 of the hexagonal subassemblies 344 and the first electrical contacts of the printed circuit board, heat can be applied to the second electrical contacts 390 (for example, through a hot rod or soldering iron tip), causing the solder paste to melt and form electrical bonds and mechanical between the hexagonal subassemblies and the printed circuit board. Plated through holes 392 facilitate heat transfer through the contacts and also allow visual inspection of the solder joint.

In one implementation, the printed circuit board 346 can be made of conventional FR-4 (Flame Resistant 4) material, which is commonly used to make printed circuit boards and is an epoxy resin composite reinforced with a woven fiberglass mat. . In one aspect, a printed circuit board 346 made of FR-4 can be manufactured as a relatively thin substrate to facilitate effective heat transfer from the front (or top surface) of the hexagonal subassemblies. Therefore, when the LED assembly 338 is coupled to the die cast chassis 336, the metal of the chassis further facilitates heat transfer from the front (or light exit face) of the light generation module.

In another implementation, the printed circuit board can be made of a flexible circuit board material. Flexible circuit boards are used in some common conventional applications where flexibility, space savings, or production restrictions limit the serviceability of rigid circuit boards or manual wiring. In addition to cameras, a common application for flex circuits is the manufacture of computer keyboards; Most of the keyboards manufactured today use flex circuitry for the switch matrix. In one example, a flexible circuit board can be implemented as a substantially thin substrate (eg, on the order of a few microns) through the use of flexible thin plastic or other insulating material and a metallic foil for conductors.

An example of a suitable flexible insulating material for flexible circuit boards is Kapton®, which is a polyamide film developed by DuPont® that can remain stable over a wide range of temperatures, from -269 ° C to 400 ° C (-452 ° C). F to 752 ° F). In LED array implementations using flexible circuit boards, windows can be cut into the insulating material at both the top and bottom of the circuit board to expose areas of the contact pad in the conductive foil layer. . Holes can be formed in the middle of these areas to facilitate the welding process, as explained above. In one aspect of implementations using flexible circuit boards, a non-planar LED array can be fabricated and suitably mounted in a chassis to allow for custom or predetermined patterns and light emission directions of the LEDs in the hexagonal subsets.

In implementations employing a flexible circuit board, an aluminum base plate that serves as an alternative to base plate 340 can be equipped with pins similar to those illustrated in Figure 12, so that the hexagonal LED sub-assemblies are first mounted in the positions suitable on the rigid base plate. The pins on the motherboard would also serve to facilitate registration of the flexible circuit board, which can be placed on top of the hexagonal subassemblies and attached to the subassemblies in a manner similar to that described above.

Figure 15 shows a close-up view of the secondary optical component 334 of the light generation module 300 shown in Figure 9. Each secondary optical component is configured with four posts 402 that mate with four corresponding small through-holes 372 of the printed circuit board to facilitate registration of the secondary optics over the primary optics of an associated hexagonal LED 344 subassembly. Each secondary optic 334 may also include one or more clips 404 to facilitate coupling of the secondary optic with one of the receiving portions of the secondary optic of the chassis 336. More specifically, referring to Figures 9, 25 and 26, each optic Secondary optics fits into a corresponding secondary optics receiving portion or chamber 502 of chassis 336, and one or more clips 404 engage with a portion of a bottom surface 504 of chassis 336. The posts 402 of the secondary optics pass through the receiving part or chamber of the chassis secondary optics, and they engage with the small through holes 372 and perimeter semicircles 374 cut out of an ^{associated hexagonal subassembly l} E ^d (for example, see Figures 10 and 11) to ensure that the Secondary optic is properly aligned with the primary optic of its associated hexagonal LED subassembly. In various aspects, the secondary optics can be configured with baffled, curved and / or reflective surfaces to facilitate the generation of a variety of beam profiles (eg, narrow beam, medium beam) for the light radiated by the hexagonal LED subsets.

A slightly different embodiment of a secondary optical component 334-1 is illustrated in Figures 16 and 17. In this embodiment, four posts 402-1 include an outward-facing flat surface 406 rather than an outwardly curved surface as shown in the embodiment of Figure 15.

Figures 18 and 19 are perspective views showing the ornamental design of one embodiment of a round disk-shaped 300-1 light generation module including a 336-1 chassis, a 340-1 base plate, and a 352 connector. -1. Figure 20 is a side view of the 300-1 light generation module of Figures 18 and 19. Figure 21 is a top view showing the ornamental design of another embodiment of a 300-2 round light generation module. attached to a socket 302-2 through a gripping ring 332-2, in which the flanges 308-2 of the socket are visible, and Figure 22 shows a cross-sectional view of the light generation module and the grip ring taken along line 22-22 of Figure 21. Figure 23 is a top perspective view of the light generation module 300-2, the grip ring 332-2, and the socket 302 -2 of Figure 21. Figure 24 is a bottom view of the light generation module 300-2 and gripping ring 332-2 of Figure 21. In an exemplary implementation of the module, the gripping ring and combination of socket illustrated in Figures 22-24, the socket and grip ring essentially form two mating collars, wherein at least one exterior feature of the outlet and at least one interior feature of the grip ring include mating threads to facilitate a connection. Spindle-type interlocking mechanics as the gripping ring is positioned and rotated relative to the socket. Consequently, when the light generation module is installed in the socket, the gripping ring is configured to engage at least a portion of a perimeter of the light generation module and hold the light generation module in the socket. via spindle-type (rotating) interlocking mechanical connection.

Figure 25 is a top view of the ornamental design of one embodiment of a chassis 336-1 that includes multiple chambers 502. Figure 26 is a bottom perspective view of the chassis 336-1 of Figure 25, illustrating multiple threaded holes 504 formed on the chassis body to receive spindles that can be used to attach the motherboard and LED assembly to the chassis.

Figures 27 and 28 illustrate two different exploded perspective views of a light generation module 300-3 and a gripper ring 332-3 in accordance with an alternate embodiment of the disclosure.

In the embodiment of Figures 27 and 28, unlike the embodiment discussed above in connection with Figure 9, an LED 338-1 assembly including a number of LED 344-1 hexagonal subsets is not arranged to be sandwiched between a motherboard thermally conductive and a printed circuit board substrate, but is configured to be inserted into a 336-2 chassis.

Figures 29 and 30 illustrate various views of chassis 336-2 that include six complementary receiving portions or chambers to accommodate six hexagonal LED 344-1 subsets. In one aspect of this embodiment, chassis 336-2 can be an injection molded component made of plastic. In addition, the 336-2 chassis can be configured to include a number of electrical connectors 410 and contacts 412 integrated with the 336-2 chassis body to provide operating power to each of the 344-1 LED hex subassemblies from a connector assembly. Main 352-2 arranged in a center channel of chassis 336-2. A particular arrangement of electrical contacts 412 and connectors 410 is shown in a top view in Figure 31. In various aspects, the electrical contacts or connectors of chassis 336-2 may include: components that are molded into the chassis; stamped parts that can be pressed into the chassis during assembly; a flexible printed circuit board (flexible PCB); or conductive ink projected onto the molded chassis. The 344-1 LED hex subassemblies can be mounted to the 336-2 chassis by pressing to ensure satisfactory electrical contact with the chassis contacts or connectors. To facilitate satisfactory contact, the chassis may further include small retaining clips or fasteners in the injection molded plastic.

Referring back to Figures 27 and 28, once the 300-3 LED assembly including the 344-1 LED hex sub-assemblies is mounted on the 336-2 chassis, a 340-2 stamped aluminum base plate can be attached to chassis 336-2 through spindles passing through countersunk holes 414 in base plate 340-2 (see Figure 28) (base plate material can also be copper, graphite or other suitable thermally conductive material) . Base plate 340-2 also includes a center through hole 350-1 for the 352-2 connector assembly, although in some embodiments, through hole 350-1 may not be in the center of base plate 340-2, and In some embodiments, no through hole 350-1 is present. Base plate 340 2 may provide a thermal connection to a housing as described above with reference to Figure 9. A separation pad 416 may comprise thermal material that is optionally positioned adjacent to a lower surface of aluminum base plate 340. -2 and sticks through a thermal paste or thermal grease. In general, a separation pad can be used to closely match two surfaces and eliminate voids that would exist if two bare surfaces were to be matched.

In various implementations, alternative thermal materials such as viscous paste or liquid metal may be employed between the plate and a thin, slightly convex sheet. When the light-generating module is securely engaged with the socket, this convex sheet deforms under compression to fullness against the fixture housing (eg, a heat sink, described below with reference to Figure 43). . Alternatively, a thin sheet of very soft metal, such as indium (Brinell hardness 0.9), which can deform under pressure, can replace the separation pad. In another aspect, the separation pad or other thermal material can be manufactured with wings or flaps that fold through or around the motherboard and were pinched / caught when the motherboard is attached to the chassis.

As explained above, various components and / or sub-assemblies of the light generation module 300 can be configured to conduct heat away from the light generation module 300. In some embodiments, the chassis 336 can be die cast in metal or formed with other. suitable thermally conductive material so that heat can be transmitted from the LED assembly 338 to the faceplate 330 and / or gripper ring 332. The electrically and thermally conductive insulating layer 348 discussed above can be interposed between the ^l E ^d 338 assembly and the chassis 336 as part of facilitating thermal dissipation. In this way, heat dissipation can be facilitated from the front face and / or the sides of the light generation module 300.

Thermal dissipation can also be provided from the rear side of the light generation module 300 in some embodiments. For example, a thermally conductive base plate 340 may be provided as a back-up to the LED assembly 338 so as to facilitate heat dissipation through the housing and / or outlet to which the light generation module 300 is connected.

As illustrated in Figures 32-39, in some embodiments, a light generation module may include one or more active heat dissipation components, such as a fan, and / or it may include passive heat dissipation features, such as fins or paths. or air circulation channels. Such embodiments may be useful with certain LED assemblies and light generation modules since the use of heat dissipation components can allow the light generation module to be an independent unit in terms of heat dissipation. That is, thermal coupling to a housing or other accessory may not be required for adequate heat dissipation. In this way, flexibility can be achieved in terms of associating the light generation module with various lighting fixtures and lighting systems.

One embodiment of a light generation module 300-4 employing heat dissipation fins 510 is illustrated in Figures 32 and 33. In this embodiment, the fins 510 are integral to the light generation module 300-4 in that the fins 510 is included as part of a die-cast metal light generation module housing 512. An LED assembly 514 is thermally coupled to die cast housing 512 so that heat can be transferred to heat dissipation fins 510. Module housing 512 includes an insert molded copper core 516 and an injection molded flange 518 to mate with a 302-2 socket, as shown in Figure 33. Although the 302-2 socket in this embodiment is die-cast metal, the 518 plastic flange prevents any appreciable amount of heat from being transferred to take 302-2 in this realization. In some embodiments, the socket 302-2 can be thermally conductive to facilitate heat transfer.

The module housing 512 includes leaf springs 520 for building operating power and control connections to socket 302-2 when light generating module 300-4 is mated to socket 302-2.

One embodiment of a light generation module 300-5 that includes a fan 530 is illustrated in Figure 34. The fan 530 is disposed between an LED assembly 338-2 and a module housing 512-1. The fan 530, which can be a low RPM fan, draws air into the chassis 512-1 through the intake vents 532, and expels the air from the module 300-5 through the exhaust vents 534. During the In operation, heat is transferred from the LED subsets 344-2 to the heat dissipation fins 510-1 through a metal core printed circuit board 346-1. Airflow created by fan 530 passes over heatsink fins 510-1 and draws heat from heatsink fins 510-1 before exiting the module housing 512-1 through the exhaust vents 534. Any airflow passing directly over the metal core printed circuit board 346-1 and / or the LED subassemblies 344-2 can also extract heat. Of course, the particular arrangement or configuration of heat dissipation fins 510-1 may differ from those illustrated in this embodiment. More than one fan can be used for a given 300-5 light generating module. In some embodiments, the operation of the fan 530 can be controlled through the use of temperature sensing or measurements of the amount of power supplied to the LED assembly 338-2.

Another embodiment of a light generation module 300-6 that includes a fan 530-1 is illustrated in Figure 35. For example, the fan 530-1, as a low decibel fan, may be arranged on a heat sink 540. , like a die-cast heat sink. An LED assembly 338-3 (the rear side of which is visible in Figure 35) is thermally coupled to the heat sink 540 (eg, with a separation pad, viscous paste, or liquid metal). The heat sink 540 has fins 510-2 that form channels 542 through which air flows. The LED assembly 338-3 and a chassis 336-3 to support secondary optical components 334-2 can be removably connected to the heat sink 540, for example, with spindles. In some embodiments, the LED assembly 338-3 and chassis 336-3 can be permanently connected to the heat sink 540 and the entire light generation module 300-6 incorporating all the components illustrated in Figure 35 can be connected and disassembled accordingly. lighting fixture housings by one user. The heat sink 540 can also serve as a housing or holder for additional components, electronic or otherwise, for the light generation module 300-6.

In one embodiment of a light generation module 300-7 illustrated in Figures 36-38, the thermal components include a thermally conductive base plate 340-3, fins 510-3, and a cover 550. The components can be configured to facilitate a airflow past some of the heat dissipation components (such as fins 510-3), as shown in Figures 37 and 38. For example, in some embodiments, one or more 530-2 fans may be employed to promote an air flow through channels 542-1 formed by fins 510-3.

The cover 550 can be configured to allow the light generation module 300-7 to be connected with spindles to a housing 304-2 of a lighting fixture 100-2, or, in some embodiments, the cover can be configured to allow the 300-7 Light Generating Module is cut or broken inside the 304-2 fixture housing. Cover 550 can include contacts 352-3 for operating power and / or control connectivity, or cover 550 can include a hole to allow access to power and / or control contacts on an LED subassembly.

As can be seen in Figure 39, a mounting bracket 316 can be designed to be mounted, for example, between joints, beams, or similar architectural features of a ceiling 560, so that the light fixture 100-2 is recessed, with the part The bottom of the light fixture 100-2 disposed substantially flush with the ceiling 560. The light fixture 100-2 may be configured to hold a removable light generation module (eg, light generation module 300-7). The lighting fixture 100-2 may include a controller, as well as other components, that may be arranged in a controller housing 562. A wiring compartment 564 may include various electronic components, such as cables to supply operating power and data to the controller module. light generation 100-2. Controller housing 562 and / or wiring compartment 564 can be configured to provide recessed light fixture 100 2 with a low vertical profile, in order to minimize the height of recessed light fixture 100-2 within ceiling 560. In some embodiments, the recessed light fixture profile 100-2 may have a depth of approximately four inches above ceiling 560, such as to connect to a stud or two-by-four beam without the need for additional clearance above the ceiling. .

As illustrated in Figures 40 and 41, the 300-5 light generation module described with reference to Figure 34 (or other suitable light generation module disclosed herein) can be used within a recessed lighting fixture. beam mounting 100-2 according to yet another embodiment of the disclosure. Recessed light fixture 100-2 may include a housing 304-2 and mounting brackets 316 configured to mount light fixture 100-2 in a ceiling 560 or other suitable location. The 300-5 Light Generation Module is shown removed from the 100-2 Recessed Light Fixture in Figure 41.

In some embodiments, the light generation module 300 may not include control facilities within the module, or it may include a very limited amount of memory, processing, or control facilities within the light generation module 300. For example, the module light generation module 300 may receive drive signals for LEDs from an external controller module (i.e., a controller not arranged in light generation module 300) and provide no further control of the LEDs and provide no feedback or information to the external controller module.

In some embodiments, the light generation module 300 may include various memory, processing, or control facilities in the light generation module 300. For example, the light generation module 300 may include a unique identification code, such as a serial number. The serial number may be arranged for reading by an external controller module, and the information associated with the serial number may be present within the memory associated with the controller module, and / or the information associated with the serial number may be provided. to the controller module from an external source. In one embodiment, the controller module reads the unique identification code from the light generation module 300 and accesses a database that contains information specific to the light generation module 300. In some embodiments, an identification code can identify a group of light generating modules 300 that have similar or identical characteristics, and do not identify a specific light generating module 300.

The light generation module 300 may include only an identification code, from which more information can be accessed, as explained above. Alternatively, in some embodiments, the light generation module 300 may include additional information within memory in the light generation module 300. Examples of information that may be included in the light generation module 300 include, but are not limited to a: operating power requirements; rated operating power; LED source descriptions; light generation characteristics or parameters related to color or color temperature; description of the angles of the optical beam; calibration parameters; operating temperature; instructions for controller action related to operating temperature; and historical data regarding temperature, weather, or other light-generating characteristics.

The operating power requirements may be provided by the light generation module 300 in terms of voltage or current, and may include any other suitable information about the power supply to the light generation module 300. The operating output power can provide an output rating in terms of watts or lumens, and may include information on any anticipated degradation over time. A description of LED-based sources may include the type and / or number of RGB LEDs and / or white LEDs, and color temperature specifications. In some embodiments information about feasible optical beam angles and / or optical beam angles may be included. Information regarding a predictable shelf life can be included in some embodiments. The light generation module 300 communicates the operating temperature measurements to the controller and, in some embodiments, can provide data or instructions to the controller for desired power levels based on operating temperature measurements. For example, the light generation module 300 may instruct the controller to reduce the power supplied to the light generation module 300 when a certain threshold operating temperature is reached. In some embodiments, historical data, such as the number of hours of run time, historical operating temperatures, or other data, may be supplied by the light generation module 300 to the controller or other suitable device. In some embodiments, the information and / or instructions provided by the light generation module 300 may be initiated by the light generation module 300 itself and communicated to the controller. In some embodiments, the controller, or other reading device, may request information from the light generation module 300, or read information directly from a memory module or other suitable component of the light generation module 300.

As illustrated in Figure 42, in some embodiments a socket 302 may be used to replaceably connect a light generation module to a housing or heat sink of a lighting fixture. In this embodiment, a gripper ring 332 is rotatable on a characteristic molded flange 580 of chassis 336 and includes raised features (eg, posts 582) that follow and engage with a complementary spiral path 584 in socket 302 to lock the module to the socket. In some embodiments, the socket 302 may also include a key 586 to provide a straight connection path for coupling the light generation module to the socket 302. The key 586 prevents the light generation module (other than the ring grip 332) rotates within socket 302. In this manner, the rotation of grip ring 332 does not substantially affect the orientation of the LED assemblies. In addition, the orientation of the connectors on the rear side of the light generation module does not change, thus allowing, in addition, the orientation of the connectors on the back of the light generation module does not change, allowing connectors to be mated. Specific orientation with complementary connectors on the housing.

By using posts 582 on an inner surface of grip ring 332 and spiral vias 584 or spindle-type threads on an outer surface of socket 302, in some embodiments, tool-free installation and removal of the generation module can be accomplished. light 300 from the light fixture. In this regard, the light generation module can be easily connected to a lighting fixture, and thermal, mechanical and electrical connections can occur automatically as a result of fixing. Of course, in some embodiments, one or more additional steps may be required of the user to form all the connections from the light generation module to the housing. For example, in some embodiments, physical and thermal coupling of the light generation module to the housing can occur by rotating the light generation module in the socket as described with reference to Figure 42, and the electrical connection of the module Generation of light to the housing can subsequently be achieved by separately connecting a connector of the light generation module to a connector of the housing.

In one aspect, an electrical contact or other means may be incorporated with the socket 302 to detect when the gripper ring 332 has reached a locked position, so that the drive signals and / or the operating power of the LED hex sub-assemblies do not are applied unless the light generation module 300 is completely locked in the socket 302.

Figure 43 illustrates one embodiment of the outlet 302 mounted on a heat sink 540-1, which may form a thermally conductive part of the accessory housing. The socket 302 may be screwed or otherwise secured to the heat sink 540-1 by using through holes 306 in the flanges 308. A through hole 590 may be provided in the heat sink 540-1 for an electrical connector. In some embodiments, other ways of securing the socket 302 to a heat sink, housing, or, may be employed, and in some embodiments, the socket 302 can be integrally connected to the housing.

A fastener other than a socket can be used in some embodiments to connect the light generation module to the housing. For example, in some embodiments, the light generation module can be attached to the housing through the use of an adhesive. In some embodiments, fasteners such as spindles or bolts can be used to connect the light generation module, and thus there can be no tap.

Figures 44A and 44B illustrate an alternative embodiment of a socket 302-3 in which a stamped sheet 602 includes locking slots 604 for receiving posts 606 of a light generation module 300-8. To mount the light generation module 300-8 in the socket, the posts 606 are inserted into the locking slots 604 and rotate clockwise. At the end of the rotation, a detent can be used to easily lock the 300-8 light generation module into the 302-3 socket. For example, a rounded end 610 of one or more of the posts 606 may engage a raised portion 612 of the embossed sheet to provide stability in the fixture (see Figure 45). A bent portion 614 of the stamped sheet can be skewed to press on post 606 to further secure the fixture.

A keyed center post 620 can be used to correctly orient the 616 contact pads of the 300-8 light generation module with 618 leaf spring contacts present on the 602 stamped foil. Of course, the 616 contact pads instead can be presented on the stamped sheet 602 and the Leaf spring contacts 618 may be present on light generation module 300-8. Other suitable connection assemblies can be used to achieve electrical and / or mechanical connections.

Figures 46 and 47 show another alternative embodiment of a socket 302-4 and a light generation module 300 9. In this embodiment, the light generation module 300-9 includes at least two flexible wings 628 that can be deformed inward. , thereby allowing the coupling elements 630 to move inwardly by pressing the light generation module into the socket. Once the coupling elements reach a slot 632 in the socket 302-4, the flex wings 628 move outward and the coupling elements mate with the slot 632 and hold the light generation module 300-9 in the socket. 302-4. A spring biased contact plate 636 is disposed on a socket base 302-4 to facilitate electrical connection to the light generating module. To remove the light generation module 300-9 from the socket 302-4, a user pushes one or more of the flexible wings 628 inward to release the coupling elements 630 from the slot 632.

While each of the shot embodiments described thus far has used circular shots as examples, it is important to note that a shot is not required to be circular. For example, in the embodiment of a 302-5 socket and 300-10 light generation module illustrated in Figure 48, the 302-5 socket is substantially rectangular. In this embodiment, the light generation module 300-10 includes one or more tabs 640 that engage corresponding conformal locks 642 on a heat sink 540-2. Light generation module 300-10 may include a thermally conductive spacer pad 644 to facilitate thermal conductance to heat sink 540-2. The 540-2 heat sink can be part of a 100-3 lighting fixture that includes a 646 hinged mounting bracket.

Another embodiment of a substantially rectangular socket is illustrated in Figure 49. A light fixture 100-4 hanging from a ceiling is configured to hold the light generating modules projecting the light upward. One or more hangers 650 support light fixture 100-4 and may also provide conduit for cables carrying operating power and / or control signals to a controller 105. One or more outlets 302-6 face upward and include an electrical connector 310 for mating with an electrical connector on a light generation module. A light generation module can be attached to the light fixture 100-4 by passing a spindle through the light generation module and into a threaded hole 652 present in a socket base 302-6.

Another embodiment of a substantially rectangular socket 302-7 is illustrated in Figure 50. A light generation module 300-11 that is also substantially rectangular includes LED assemblies 338 and "clicks" into place (snap fits) on the socket. 302-7. Light generation module 300-11 includes spring biased locks 660 that protrude into slots 662 in socket 302-7 to hold light generation module 300-11 in place. In some embodiments, the locks can be locked in the deployed or undeployed positions with a tool. Light generation module 300-11 also includes an orientation notch 664 that helps align light generation module 300-11 by mating with a corresponding protrusion 668 on socket 302-7. The 300-11 light generation module can be formed with a die-cast aluminum housing and include integrated heat sink fins 510. In some embodiments, the heat sink fins can be incorporated into the 302-7 socket and / or a housing that connects to the socket. The 302-7 socket includes a 670 leaf spring for operating power and data connections, although suitable connectors may be used. The 302-7 socket can be connected to a light fixture by using 306 through holes in a flange of the 308 socket.

Another embodiment of a socket 302-8 and light generation module 300-12 is illustrated in Figure 51. In this embodiment, light generation module 300-12 includes pivoting hooks 694 that extend outward when tightened. the pinch levers 696. In this embodiment, the light generation module 300-12 is held within an extruded aluminum module housing 698.

An embodiment of a toolless 300-13 light generation module is illustrated in Figure 52. The light generation module 300-13 has an over-center latch 702 on one side. When a latch handle 704 is pulled, the hooks 706 are released from the corresponding slots in a socket (not shown). Latch 702 is configured to allow user pick-up so that light generation module 300-13 can be installed and removed with one hand and without tools. In an alternative embodiment, a similar light generating module may not have a latch, but instead include flanges at the longitudinal ends for bolting to a socket or fixture housing.

One embodiment using mounting hardware to connect a 300-14 light generation module to a light source or fixture is illustrated in Figure 53. The 300-14 light generation module includes two through holes inside the module for insertion. 710 spindles or other hardware. Through holes can be located between LED assemblies 338. Spindles 710 attach to threaded holes in the base of a socket or elsewhere in a light fixture.

Referring now to Figure 54, an embodiment of a light generation module 300-15 is illustrated that connects to an outlet 302-9. The socket base 302-9 includes a threaded hole 652 to receive a spindle 710 that passes through a through hole in the light generation module 300-15. The socket base 302-9 also includes an electrical connector 352 for receiving a corresponding electrical connector from the light generation module 300-15.

Figures 55 and 56A-56E show various embodiments of light fixtures 100-4 that provide light in the upward direction through the use of removable light-generating modules 300-15 that connect to sockets 302-10 on fixtures. illumination. Electrical connectors are provided at the outlet bases and at the bottom of the 300-15 Light Generating Modules. It should be apparent from the figures that the regulator module 105 can be in any of a number of configurations.

Figure 57 illustrates an exploded view of one embodiment of a rectangular light generation module 300-16 that includes a fan 530-3 for heat dissipation. 300-16 Light Generation Module includes 330-2 Acrylic Faceplate, 334 Secondary Optics, 338 LED Assembly Kit, 512-2 Die-Cast Aluminum Module Housing including 714 Heat Dissipation Channels , and a cover 716 for the 530-3 fan and 714 heat dissipation channels. The 530-3 fan is a flat, unidirectional fan that draws air into the 512-2 module housing through the 720 intake vents, moves air through heat dissipation channels 714 and expels air from module housing 512-2 through exhaust vents 722. A 346 metal core printed circuit board can be used as part of each LED assembly 338 to aid in the transfer of heat from the 338 LED assemblies to a 340-4 thermally conductive motherboard and in turn to heat dissipation channels 714.

Figure 58 illustrates an embodiment of a lighting fixture 100-5 that includes a housing 304-3 that can accommodate up to six light generation modules 300-16. In this embodiment, the light generation modules 300-16 are snap-fit into the lighting fixture 100-5 and the power and operation control signal connections are made through connectors at the base of the generation modules. Light fixtures 300-16 that mate with connectors 310 that fit into housing 304-3.

In some embodiments of the present disclosure, a modular lighting fixture is configured so that the housing can be installed through an opening in an architectural feature, such as a hole in a ceiling or wall, for example. In this sense, the lighting fixture can be installed as a recessed fixture in existing construction; that is, the unit can be installed into an opening in an existing or feature architectural surface without having to cut through the ceiling, wall, or other architectural surface down to the joists or other supporting elements.

In one embodiment, as illustrated in Figure 59, a lighting fixture 100-1 is L-shaped and configured to mount to an architectural surface such as a ceiling. A mounting cone 802 includes mounting feet 804 to support and secure the light fixture 100-1 to the ceiling (or other architectural surface). A housing 304-1 extends longitudinally away from the mounting cone 802 in one direction. Housing 304-1 may include heat dissipation elements 320 (eg, fins). More details of the embodiments of the lighting fixture 100-1 are described below.

An installation sequence of the light fixture 100-1 in a ceiling 560 is illustrated in Figure 60. To begin with, a distal end 806 of the housing 304-1 is moved vertically or at an angle somewhat off-vertical through an opening 812 in the ceiling 560. As the distal end advances into the space behind the ceiling, the housing 304-1 is rotated to bring the housing 304-1 closer to a horizontal orientation. A proximal end 808 of housing 304-1 is rounded in some embodiments to help fit through opening 812 as housing 304-1 is rotated. The mounting cone 802 is connected to the housing with a hinge 810 so that the mounting cone 802 remains substantially clear of the opening 812 while the housing 304-1 is rotated in place (Figure 60 shows the mounting cone 802 by maintaining the same orientation throughout the placement of the lighting fixture 100-1). After housing 304-1 reaches a horizontal orientation, mounting cone 802 is pushed up until a flange 814 of mounting cone 802 engages an exposed surface of ceiling 560. Initially positioning lighting fixture 100 -1 on ceiling 560, mounting feet 804 pivot so that they do not inhibit insertion of mounting cone 802 into opening 812. Once flange 814 of mounting cone 802 engages the exposed surface of ceiling 560 , a screwdriver is used to rotate the mounting feet 804 and then install them down so that the flange of the mounting cone 814 and the mounting feet 804 are sandwiched to the ceiling 516.

Figure 61 shows a bottom perspective view of the light fixture 100-1 of Figures 59 and 60. The mounting flange 814 may include a clear matte alzak reflector 816 or other suitable reflector in some embodiments. The hinge 810 that connects the mounting cone 802 and the housing 304-1 is visible at the proximal end 808 of the housing 304-1. A controller housing 818 is integrated into housing 304-1 along a lower portion of the housing in this embodiment. In some embodiments, the controller housing 818 and therefore the controller module are thermally isolated from the housing 304-1.

In some embodiments, such as the embodiment illustrated in Figures 59-62, the housing 304-1 can be removed. As shown in Figure 62, through holes 822 for positioning of the operation and control power input connectors may be positioned in a distal end 820 of the controller housing 818.

The mounting hardware 826 for adjusting the mounting feet 804 is illustrated in Figure 63. Also visible in Figure 63 is a user replaceable light generation module 300. As with some other embodiments disclosed herein, the light generation module 300 can be installed and removed by rotating a gripping ring that interacts with a socket. In this regard, once the light fixture 100-1 is installed in the ceiling opening (or other architectural surface or feature), the light fixture 100-1 provides the interchangeability of the light generation module without tools. In some embodiments, the mounting hardware 826 can be configured to allow tool-free operation, so that both the installation of the lighting fixture 100-1 and the replacement of the light generation module 300 are tool-free.

Rather than including an extruded fixture housing, in some embodiments a lighting fixture 100-1 includes a die cast fixture housing 304-2. As illustrated in Figure 64, housing 304-2 and mounting cone 802 are not hinged in some embodiments. Mounting hardware 826 and mounting feet 804 similar to the embodiment illustrated in Figure 59 can be used, although any suitable mounting hardware and mounting feet can be used. An 818 controller housing can be placed underneath and thermally insulated from the 304-2 accessory housing. In some embodiments, the controller module and / or controller housing 818 is thermally coupled to accessory housing 304-2. In some embodiments, the controller and / or controller housing 818 is thermally coupled to a separate heat sink (not shown). Additional views of the embodiment of Figure 64 are illustrated in Figures 65-67.

Figure 68 illustrates a frame kit and light fixture for the new construction installation. 830 Beam Hangers support an 832 support plane, 834 junction box, and 316 hanger. Instead of being placed on the bottom surface of the fixture housing, a controller module (not shown) can be placed in the box. of connections 834 in some embodiments. The dimensions of one embodiment of a lighting fixture 100-1 for use in new construction facilities are shown in Figures 69A, 69B and 69C. These dimensions are provided by way of example only and other dimensions are possible.

One embodiment of a controller module 105 for modular lighting fixtures disclosed herein and other suitable lighting fixtures are illustrated in Figure 70. The controller module 105 receives, through input wiring 850, the input operating power. as "wall power" (for example, 110 V AC or 220 V AC). Input control data and / or signals are also provided to controller module 105 and may also be provided through input wiring 850. As outputs, the controller module provides low DC voltage and one or more control signals to the assemblies. LEDs of the light generation module through the output wiring 852. As explained above, the controller module 105 can receive or exchange information in addition to the circuitry, memory or processing capabilities that may be present in the generation module. of light. For example, the controller module 105 may receive identification information from the light generation module.

One embodiment of a controller module 105 is illustrated with its structural packaging (controller housing 818) in Figure 70. The illustrated configuration and dimensions are by way of example only, and other sizes, shapes, and configurations may be used. In this embodiment, the controller housing 818 is constructed of stamped steel foil or stamped aluminum foil, although other materials and methods of construction are possible. In addition to 850 input wiring and 852 output wiring, the controller module may include 856 indicator lights, an 858 flexible elastomer pull tab attached to one side of the 818 controller housing, and an 860 visual indicator to aid the user. to correctly orient the controller module when installing it in an enclosure. The controller housing 818 may have a curved front end 862 to facilitate insertion and removal of the controller housing 818. In some embodiments, the controller housing 818 may have a certain shape and / or elements that prevent insertion of the housing. of the 818 controller in the wrong orientation.

Figures 71A-71C illustrate various input interfaces for the controller module 105 that can be interchanged to select how to receive the control signal input. In Figure 71A, the controller module 105 includes input and output spring clips 870 that allow zero to 10 volt control that can be linked from the controller module to the controller module for multiple units. In each of the embodiments of Figures 71A-71C, input operating power is provided to controller module 105 through input wiring 850. Figure 71B shows that the controller module has an RF receiver 872 and selector switch. zone 874. In this configuration, controller 105 is wirelessly controllable through the use of radio frequency signals. The 874 zone selector allows group control and makes reassignment easy. In Figure 71C, the controller module includes RJ-45876 connectors that allow use Ethernet-based control signals for input. By using two connectors, the linking of multiple controller modules is possible.

Figures 72, 73, 74 and 75 show four steps in a procedure for installing a controller module 105 in a recessed lighting fixture 100 that has already been installed in an architectural feature (eg, a ceiling 560).

In a first step, as shown in Figure 72, the output wiring 852 and the input wiring 850 from the controller module are connected to the associated wiring of the lighting fixture and wall power. Although not shown, a control input cable can be connected to a control input connector 880. The 818 controller housing is oriented with the help of the 860 visual indicator. In a second step, as shown in Figure 73, The controller module 105 moves through an opening 884 in the fixture housing 304 (eg, a light exit opening) and rotates into a horizontal orientation. Once in a horizontal orientation, the controller module 105 is rotated about a vertical axis in an operating orientation, as shown in Figure 74. Later, a fastener 888 is used to lock the controller module in place. as shown in Figure 75. To remove the controller module, the process is reversed and the tab 858 is used to pull the controller module 105 out of the housing wall and into the opening 884.

In some embodiments, the modular controller can be configured to be modular in terms of the input and output interfaces. One embodiment of a modular controller module 105-1 is schematically illustrated in Figure 76. Controller module 105-1 includes a processor 102 (see Figure 1) that can process input signals and determine and / or deliver output power. and / or drive signals to control LED-based light sources. In some embodiments, the processor 102 is arranged on a motherboard. More generally, the controller module may include at least one connection mechanism 894 configured to allow modular installation and removal of at least one first circuit board, including input circuit 892 configured to receive at least one input signal. , including information regarding lighting, and a second circuit board including output circuit 896 configured to output at least one lighting control signal that is based at least in part on the information included in the at least one signal input. In one aspect, the connection mechanism 894 provides at least one electrical connection between the first circuit board and the second circuit board when both the first and second circuit boards are coupled to the at least one connection mechanism. In an exemplary implementation, as mentioned above, this connection mechanism can be provided by a motherboard. In another aspect, a processor 102 may be arranged on the motherboard to process at least one input signal and provide the at least one lighting control signal (eg, one or more PWM drive signals).

More specifically, an interchangeable "front end" interface, or input interface 892, provides flexibility for the user to configure controller module 105 to receive control signals. For example, the user can use multiple input interface boards and / or 894 connectors to allow input information to be provided via Ethernet, DMX, Dali, wireless, analog control, or any other suitable connection. An interchangeable "back-end" or 896 output interface provides flexibility to the user in terms of the number of LED channels to drive and / or the type of channels to drive. For example, depending on the type of light generation module used, an output interface board could provide a single channel / color driving capability, or a different output interface board could be used to drive multiple channels. for multiple colors or multiple color temperatures. In particular, in some embodiments, an output interface board can be used to drive multiple white color temperature LEDs. The output power can be sent to the LED-based light sources through the 852 output wiring.

In accordance with another aspect of the invention, a battery or other auxiliary power source is provided in an LED lighting fixture so that the LED lighting fixture can be used for emergency lighting in addition to its primary lighting purpose. For example, as shown in Figure 77, the controller module 105 can normally be coupled to a primary power source such as the wall power 900, but in the event of a power loss, it can be coupled to a power source instead. 902 auxiliary power such as a rechargeable battery or large capacity capacitor. In some embodiments, a connection to an auxiliary line power source can be used as an auxiliary power source. The controller module can be configured to automatically switch to using auxiliary power source 902 as the power source for an LED lighting fixture when the primary power source is interrupted for a threshold of time.

Claims (14)

1. A modular lighting fixture (100), comprising: - a housing of the accessory; - a socket mounted on the accessory housing; - a light generation module (104) installed and removable from the socket; and - a controller module (105) to control the light generation module, the controller module arranged in the fixture housing or separate from the fixture housing, wherein the light generation module (104) is configured to provide information to the controller module (105) regarding at least one characteristic of the light generation module; the controller module (105) is configured to control the light generation module (104) based at least in part on the information provided by the light generation module, and It is characterized in that the information refers to an operating temperature history associated with the light generation module (104). The accessory of claim 1, including a memory (114) for storing the information. The accessory of claim 1, wherein the information includes a unique identifier for the light generation module (104). The accessory of claim 3, wherein the unique identifier includes a serial number for the light generation module (104). The accessory of claim 1, wherein the information refers to at least one characteristic of the light generated by the light generation module (104). The accessory of claim 1, wherein the information refers to at least one operating power requirement associated with the light generation module (104). The accessory of claim 1, wherein the information includes at least one calibration parameter associated with the light generation module (104). The accessory of claim 1, wherein the information refers to an operating temperature associated with the light generation module (104). The accessory of claim 8, wherein the controller module (105) is configured to adjust an operating power of the light generation module (104) based at least in part on the operating temperature associated with the light generation. The accessory of claim 1, wherein the information refers to an operational history associated with the light generation module (104). The apparatus of claim 10, wherein the information refers to an operating time history associated with the light generation module (104). 12. A method of controlling a modular lighting fixture (100) comprising an fixture housing, a socket mounted to the fixture housing, a light generation module (104) installed and removable from the socket, and a controller module (105) to control the light generation module, the controller module arranged in or separate from the fixture housing, in which the light generation module (104) provides information to the controller module (105) regarding at least one characteristic of the light generation module; and the controller module (105) controls the light generation module (104) based at least in part on the information provided by the light generation module, and It is characterized in that the information refers to an operating temperature history associated with the light generation module (104). The method of claim 12, wherein the information refers to at least one of at least one characteristic of the light generated by the light generation module (104), at least one operating power requirement associated with the light generation module, at least one calibration parameter associated with the light generation module, an operating temperature associated with the light generation module, and an operating history associated with the light generation module. The method of claim 12 or 13, wherein the information relates to an operating temperature history and / or an operating time history associated with the light generation module (104).