Patent Description:
The present disclosure relates to a swimming pool lamp, and more particularly, to a wireless swimming pool lamp.

LED underwater lamps have been widely used in swimming pools, fountains, bathing pools and the like. However, existing LED underwater lamps typically require one or more wires to connect external power lines and signal lines. Pulling of the cable due to water flow and other factors may result in damage to the cable and may further cause a failure in the lamp or even pose a safety hazard. When existing LED underwater lamps fail and need to be replaced or repaired, it may be required to completely drain the water from a surrounding environment, such as a swimming pool, before replacement or repair, thereby making replacement or repair of the LED underwater lamp in application occasions such as swimming pools and fountains difficult and inconvenient.

<FIG> illustrate cross sectional views of a standard wall fitting <NUM> (also known as return wall fittings) screwed into a receptacle <NUM> of a pool wall <NUM>, showing standard wall fitting <NUM> with and without, respectively, a conventional pool lighting device <NUM> according to the prior art. Accordingly, <FIG> also shows a conventional pool light device <NUM> screwed into a threaded interior section <NUM> of standard wall fitting <NUM>.

There are several varieties of standard wall fittings for securing various types water jets, water suction nozzles, lighting devices, and other pool or spa implements. As one example, <FIG> shows standard wall fitting <NUM> including a face <NUM> and a cylindrical body <NUM>. Face <NUM> has a central aperture <NUM> (or mouth) for receiving the desired pool or spa implements. Face <NUM> also includes an outer rim <NUM> (or flange) that rests against a surface <NUM> of pool wall <NUM> when an outer threaded section <NUM> of cylindrical body <NUM> is screwed into receptacle <NUM>. In another embodiment, outer threaded section <NUM> may be smooth or accommodate different types of fasteners to secure standard wall fittings within receptacles of spa or pool walls.

An interior cavity <NUM> of standard wall fitting <NUM> includes threaded interior section <NUM> sized to receive-i.e., having an inside diameter of typically about <NUM> and <NUM>/<NUM> inch (<NUM>)-corresponding threaded male portion <NUM> (<FIG>) of device <NUM> (or other implement). Threaded interior section <NUM> ends at an annular stop <NUM> (or ridge) that defines a face-to-stop distance <NUM> and, in some embodiments, serves to separate threaded interior section <NUM> from a smooth cylindrical sidewall <NUM>. Sidewall <NUM> is sized to receive a free end <NUM> of a conduit <NUM>.

<FIG> show in phantom lines two different options for free end <NUM>: a wide-mouthed section <NUM> (<FIG>) and a wide-to-narrow conduit adapter <NUM> (<FIG>). Because device <NUM> includes an integral power supply <NUM> having a relatively wide diameter and length that extends past a back opening <NUM> of standard wall fitting <NUM>, wide-to-narrow conduit adapter <NUM> (<FIG>) is too narrow and shallow and therefore may block the installation of device <NUM>. Thus, wide-mouthed section <NUM> is needed to accommodate a depth of integral power supply <NUM>. Wide-to-narrow conduit adapter <NUM>, however, is commonly preinstalled and cannot be readily removed when unsuccessfully attempting to install device <NUM>.

When deployed underwater, conventional light device <NUM> is problematic such as for reasons described in <CIT>. The '<NUM> patent describes a previous inductive-coupling lighting system for use in high-moisture operating environments. Previous systems such as those of the '<NUM> Patent on electromagnetic inductive coupling for simultaneous wireless (contactless) transfer of power and lighting-control commands. The system uses matable male and female inductive components. In particular, the female inductive component is designed as a substitute for standard wall fittings of the type shown in <FIG>. This approach is excellent for new installations, although there are some installations in which standard wall fittings are desired.

The above and other needs are met by an LED lighting device that is installable on a standard wall fitting, such as a standard wall fitting located in a pool. In a first aspect, according to the invention, an LED
lighting device is installable on a standard wall fitting having a cylindrical body, a threaded interior section located, and an annular stop located at an end of the threaded interior section, and includes: an inductive power transmitter including a housing shaped to fit through the standard wall fitting, the housing having a first end and a second end, a tee top located at the first end of the housing including a flat inductive power transfer face located on an end thereof and an underside surface shaped to contact the annular stop of the standard wall fitting, and an inductive transmitter coil located within the tee top and arranged such that a plane of the inductive transmitter coil is substantially parallel to the flat inductive power transfer face of the tee top, the inductive transmitter coil in electrical communication with a power source; and an LED lamp module including an LED lamp body including an upper end and a lower end, the LED lamp body containing one or more LEDs, a threaded male portion formed on the lower end of the LED lamp body and shaped to threadably engage the threaded interior section of the standard wall fitting, the threaded male portion including a flat surface formed on an end thereof, an inductive power receiver pad located adjacent the flat surface of the threaded male portion, and an inductive power receiver coil located within the threaded male portion proximate to the inductive power receiver pad. The tee top of the inductive power transmitter is configured to be located between the annular stop of the standard wall fitting and the inductive power-receiver pad of the LED lamp module.

In one embodiment, the LED lighting device further includes: an IR emitter located in the tee top of the inductive power transmitter and an IR receiver located in the LED lamp body of the LED lamp module. The LEDs of the LED lamp module are controlled by signals detected by the IR receiver of the LED lamp module the IR emitter of the inductive power transmitter. In another embodiment, the LED lighting device further includes: an internal depression located adjacent the flat inductive power transfer face of the inductive power transmitter and an IR receiver mounting cradle located adjacent the flat surface on the threaded male portion of the LED lamp module. The IR emitter is located on the internal depression and the IR receiver is mounted on the mounting cradle. The IR receiver is located in visual alignment with the IR emitter when the LED lighting device is installed on the standard wall fitting.

In yet another embodiment, the LED lamp module further includes a decorative trim plate removably installed on the LED lamp body. In one embodiment, the LED lighting device further includes: a plurality of spaced-apart tabs located around an underside of the decorative trim plate and a plurality of notches located around an outer circumference of the LED lamp body. The decorative trim plate is removably secured on the LED lamp body by aligning the plurality of spaced-apart tabs of the decorative trim plate with the plurality of notches of the LED lamp body and subsequently rotating the decorative trim plate with respect to the LED lamp body.

In one embodiment, the LED lighting device further includes a spacer located on the inductive power transmitter adjacent to the tee top, wherein the spacer is located between the tee top and the annular stop of the standard wall fitting when the LED lighting device is installed on the standard wall fitting.

In another embodiment, the LED lighting device further includes an electrical supply cable connected at a first end to electrical supply equipment and at a second end to the inductive power transmitter.

In yet another embodiment, the LED lamp module is configured to removed or installed on the standard wall fitting adjacent the inductive power transmitter when the standard wall fitting is located below a water level of an area at which the standard wall fitting is located.

In one embodiment, the one or more LEDs of the LED lamp body are controllable to produce various color modes. In another embodiment, the one or more LEDs are controllable to produce various color modes, and wherein a sequence of the one or more LEDs is communicated from the IR emitter of the inductive power transmitter to the IR receiver of the LED lamp module. In yet another embodiment, one of the various color modes may be selected by a signal transmitted from the IR emitter of the inductive power transmitter to the IR receiver of the LED lamp module.

In a second aspect, an LED lighting device installed on a standard wall fitting having a cylindrical body, a threaded interior section located, and an annular stop located at an end of the threaded interior section, and includes: an inductive power transmitter including a housing shaped to fit through the standard wall fitting, the housing having a first end and a second end, a tee top located at the first end of the housing including a flat inductive power transfer face located on an end thereof and an underside surface shaped to contact the annular stop of the standard wall fitting, an IR emitter located in the tee top of the inductive power transmitter, and an inductive transmitter coil located within the tee top and arranged such that a plane of the inductive transmitter coil is substantially parallel to the flat inductive power transfer face of the tee top, the inductive transmitter coil in electrical communication with a power source; and an LED lamp module including an LED lamp body including an upper end and a lower end, the LED lamp body containing one or more LEDs, a threaded male portion formed on the lower end of the LED lamp body and shaped to threadably engage the threaded interior section of the standard wall fitting, the threaded male portion including a flat surface formed on an end thereof, an inductive power receiver pad located adjacent the flat surface of the threaded male portion, an inductive power receiver coil located within the threaded male portion proximate to the inductive power receiver pad, and an IR receiver located in the LED lamp body of the LED lamp module. The tee top of the inductive power transmitter is configured to be located between the annular stop of the standard wall fitting and the inductive power-receiver pad of the LED lamp module. The LEDs of the LED lamp module are controlled by signals detected by the IR receiver of the LED lamp module the IR emitter of the inductive power transmitter.

In one embodiment, the LED lighting device further includes: an internal depression located adjacent the flat inductive power transfer face of the inductive power transmitter and an IR receiver mounting cradle located adjacent the flat surface on the threaded male portion of the LED lamp module. The IR emitter is located on the internal depression and the IR receiver is mounted on the mounting cradle. The IR receiver is located in visual alignment with the IR emitter when the LED lighting device is installed on the standard wall fitting.

In another embodiment, the LED lamp module further comprising a decorative trim plate removably installed on the LED lamp body. In yet another embodiment, the LED lighting device further includes: a plurality of spaced-apart tabs located around an underside of the decorative trim plate and a plurality of notches located around an outer circumference of the LED lamp body. The decorative trim plate is removably secured on the LED lamp body by aligning the plurality of spaced-apart tabs of the decorative trim plate with the plurality of notches of the LED lamp body and subsequently rotating the decorative trim plate with respect to the LED lamp body.

In yet another embodiment, the LED lamp module is configured to be one of removed or installed on the standard wall fitting adjacent the inductive power transmitter when the standard wall fitting is located below a water level of an area at which the standard wall fitting is located.

In one embodiment, the one or more LEDs of the LED lamp body are controllable to produce various color modes.

In a third aspect, an LED lighting device is installable on a standard wall fitting having a cylindrical body, a threaded interior section located, and an annular stop located at an end of the threaded interior section, the LED lighting device including: an inductive power transmitter including: a housing shaped to fit through the standard wall fitting, the housing having a first end and a second end, a tee top located at the first end of the housing including a flat inductive power transfer face located on an end thereof and an underside surface shaped to contact the annular stop of the standard wall fitting, and an inductive transmitter coil located within the tee top and arranged such that a plane of the inductive transmitter coil is substantially parallel to the flat inductive power transfer face of the tee top, the inductive transmitter coil in electrical communication with a power source; and an LED lamp module including an LED lamp body including an upper end and a lower end, the LED lamp body containing one or more LEDs, a threaded male portion formed on the lower end of the LED lamp body and shaped to threadably engage the threaded interior section of the standard wall fitting, the threaded male portion including a flat surface formed on an end thereof, an inductive power receiver pad located adjacent the flat surface of the threaded male portion, and an inductive power receiver coil located within the threaded male portion proximate to the inductive power receiver pad. The tee top of the inductive power transmitter is configured to be located between the annular stop of the standard wall fitting and the inductive power-receiver pad of the LED lamp module. The LED lamp module is configured to be one of removed or installed on the standard wall fitting adjacent the inductive power transmitter when the standard wall fitting is located below a water level of an area at which the standard wall fitting is located.

Further features, aspects, and advantages of the present disclosure will become better understood by reference to the following detailed description, appended claims, and accompanying figures, wherein elements are not to scale so as to more clearly show the details, wherein like reference numbers indicate like elements throughout the several views, and wherein:.

Various terms used herein are intended to have particular meanings. Some of these terms are defined below for the purpose of clarity. The definitions given below are meant to cover all forms of the words being defined (e.g., singular, plural, present tense, past tense). If the definition of any term below diverges from the commonly understood and/or dictionary definition of such term, the definitions below control.

<FIG> show a basic embodiment of an LED lighting device <NUM> for use in a high-moisture environment, such as in swimming pools, water features, ponds, spas, and other like high-moisture environments. Embodiments of the LED lighting device <NUM> disclosed herein advantageously enable installation and repair of the LED lighting device <NUM> without requiring draining of water in the high-moisture environment. Further, embodiments herein enable installation of the LED lighting device <NUM> into various types of a standard wall fitting <NUM> without requiring substantial modification of the standard wall fitting <NUM> or a pool or other feature on which the standard wall fitting <NUM> is installed.

The LED lighting device <NUM> includes a decorative trim plate <NUM>, a tee-shaped inductive power emitter <NUM> (also referred to as a power coupler), and an LED lamp module (or lamp) <NUM>. The LED lamp module <NUM> acts as an inductive power receiver with respect to the inductive power emitter <NUM> such that the LED lamp module <NUM> is wirelessly powered by the inductive power emitter <NUM>.

Referring to <FIG>, a cross-sectional side view of the standard wall fitting <NUM> mounted in a pool wall <NUM>. <FIG> further illustrates a partly exploded view of the LED lighting device <NUM> including an inductive power supply installed in the standard wall fitting <NUM> for providing wireless power transfer from the inductive power emitter to the LED lamp module <NUM> within a confined space, such as within a face-to-stop distance <NUM> (<FIG>) of the standard wall fitting <NUM>. In one embodiment, a plug <NUM> is provided that may be installed in place of the LED lamp module <NUM>. A spacer <NUM> is optionally provided on the inductive power emitter <NUM> as described in greater detail below.

Referring now to <FIG>, existing pool lights are typically installed at least <NUM> inches (<NUM>) below a water level <NUM> (per NEC Article <NUM>(<NUM>)) unless listed and identified for use at lesser depths. The LED lighting device <NUM> is preferably listed and identified for use at depths of from about no less than four inches (<NUM>) below the normal water level <NUM> and up to about <NUM> inches below the normal water level <NUM>, however it is also understood that a depth rating of the LED lighting device <NUM> may vary based on an intended installation location of the LED lighting device <NUM>.

Prior to installation of the LED lighting device <NUM>, the standard wall fitting <NUM> is installed in the pool wall <NUM>. The standard wall fitting <NUM> is preferably selected from one of various available and suitable standard wall fittings, such as those listed in Table <NUM> below.

For example, the standard wall fitting <NUM> is an LNS-<NUM>, LNS-2A, LNS-2V, or similar <NUM> inch (<NUM>) fitting installed into the pool wall <NUM> at a desired location. The conduit <NUM> extends from the wall fitting <NUM> to a conduit termination <NUM>. The conduit termination <NUM> is preferably located above ground (such as above the normal water level <NUM>) as shown in <FIG>. The conduit termination <NUM> is preferably near electrical supply equipment <NUM> providing power, such as 12VAC, through an electrical supply cable <NUM>. The PVC conduit <NUM> is watertight, and the electrical supply cable <NUM> is waterproof to prevent incursion of water. The electrical supply cable <NUM> may be provided pre-connected to a wire-cord end <NUM> of the inductive power emitter <NUM>.

During installation, the wire cord end <NUM> of the inductive power emitter <NUM> may be inserted into the central aperture <NUM> of the standard wall fitting <NUM> such that the wire-cord end <NUM> is inserted from a direction of the face <NUM> of the standard wall fitting <NUM> to determine whether a full length of the inductive power emitter <NUM> may fit within the standard wall fitting <NUM> (including the free end <NUM> of the conduit <NUM>. If an underside surface <NUM> (or the optional spacer <NUM>) of a tee top <NUM> of the inductive power emitter <NUM> contacts the annular stop <NUM> of the standard wall fitting <NUM>, there is no interference from an inside diameter (ID) of the threaded interior section <NUM> of the standard wall fitting <NUM> with the inductive power emitter <NUM>. Interference may be attributable to injection molding tolerances of the standard wall fitting <NUM> and can subsequently be addressed, such as by careful application of medium grit sandpaper or a sanding drum on a rotary tool.

Referring again to Table <NUM> above, the face-to-stop distance <NUM> (<FIG>) of the standard wall fitting <NUM> is checked. If the face-to-stop distance <NUM> is between about <NUM> (<NUM>) and <NUM> inches (<NUM>), then the optional spacer <NUM> (<FIG>) may not be required and may be discarded. If the face-to-stop distance <NUM> of the standard wall fitting <NUM> is greater than about <NUM> inch (<NUM>), then the optional spacer <NUM> is located on a stem <NUM> (<FIG>) of the inductive power emitter <NUM> such that the optional spacer <NUM> is located between the annular stop <NUM> of the standard wall fitting <NUM> and the underside surface <NUM> of the tee top <NUM> of the inductive power emitter <NUM> when the inductive power emitter <NUM> is installed on the standard wall fitting <NUM>. The optional spacer <NUM> may be formed of a resiliently flexible material, such as foam rubber. While the above describes specific dimensions for use of the optional spacer <NUM>, it is understood that those dimensions may vary and one will appreciate that sizes may vary for use of the optional spacer <NUM> with installation of the inductive power emitter <NUM> on the standard wall fitting <NUM>.

During installation, the wire-cord end <NUM> is inserted into the standard wall fitting <NUM> and the electrical supply cable <NUM> is fed through the conduit <NUM> to the electrical power supply equipment <NUM> as shown in <FIG>. The electrical supply cable <NUM> may be pulled such that a flat inductive power-transfer face <NUM> (<FIG>) of the inductive power emitter <NUM> is generally flush with the face <NUM> (<FIG>) of the standard wall fitting <NUM>.

Referring to <FIG>, a desired style of the decorative trim plate <NUM> is selected and secured to the LED lamp module <NUM>. The decorative trim plate <NUM> may be installed by aligning spaced-apart tabs <NUM> located around an underside of the decorative trim plate <NUM> with corresponding notches <NUM> located around an outer circumference of the LED lamp module <NUM>, as shown in <FIG>. The LED lamp module <NUM> is rotated with respect to the decorative trim plate <NUM> until the spaced-apart tabs <NUM> of the decorative trim plate <NUM> contact spaced-apart stops <NUM> (<FIG>) of the LED lamp module <NUM> such that the LED lamp module <NUM> and decorative trim plate <NUM> are subsequently secured to one another.

The LED lamp module <NUM> and attached decorative trim plate <NUM> are installed on the standard wall fitting <NUM>. A threaded male portion <NUM> (<FIG>) of the LED lamp module <NUM> is aligned with the central aperture <NUM> of the standard wall fitting <NUM>. The threaded male portion <NUM> of the LED lamp module <NUM> is threadably engaged with the threaded interior section <NUM> of the standard wall fitting <NUM> (<FIG>) such that the LED lamp module <NUM> and attached decorative trim plate <NUM> are threadably secured to the standard wall fitting <NUM>. The decorative trim plate <NUM> may have a diameter that is larger than an outer diameter of the LED lamp module <NUM>, thereby making the decorative trim plate <NUM> easier to grip to tighten or loosen the LED lamp module <NUM> from the standard wall fitting <NUM>. In this way, the decorative trim plate <NUM> also serves as a tool to apply torque to LED lamp module <NUM>.

As the threaded male portion <NUM> of the LED lamp module <NUM> engages the standard wall fitting <NUM>, an inductive power-receiver pad <NUM> of the LED lamp module <NUM> including a flat surface formed thereon is drawn towards the flat inductive power-transfer face <NUM> of the inductive power emitter <NUM>. The inductive power receiver pad <NUM> of the LED lamp module <NUM> may contact the inductive power-transfer face <NUM> of the inductive power emitter to further urge the inductive power emitter <NUM> into the standard wall fitting <NUM> and until the inductive power emitter <NUM> may contact the annular stop <NUM> of the standard wall fitting <NUM>. Thus, a depth of the inductive power emitter <NUM> within the standard wall fitting <NUM> may be determined by a position of the threaded male portion <NUM> of the LED lamp module <NUM> threadably engaged with the standard wall fitting <NUM>. While the above embodiment describes contact of the inductive power-receiver pad <NUM> with the inductive power-transfer face <NUM>, it is also understood that a gap may exist between the inductive power-receiver pad <NUM> and the inductive power-transfer face <NUM>.

Referring now to <FIG>, a cross-sectional side view of the LED lighting device <NUM> is shown. The electrical power supply cable <NUM> is secured to the wire-cord end <NUM> by a nut <NUM> that tightens a gasket <NUM> around the power supply cable <NUM>. An o-ring <NUM> seals a gap formed between the nut <NUM> and a circuit board housing <NUM> defining the stem <NUM> of the inductive power emitter <NUM>. A circuit board <NUM> and associated circuitry are mounted within the circuit board housing <NUM>. The circuit board housing <NUM> may have a diameter such that the circuit board housing <NUM> fits within a narrower width of the conduit <NUM>.

The circuit board <NUM> and associated circuitry may include hardware resources including an optional microcontroller, power transformer, and power and signal transmission components. As described in greater detail herein, the circuit board <NUM> receives power, such as 12VAC power, and optional control signals communicated through wires <NUM>, transforms the power for efficient wireless (i.e., contactless) transmission through an inductive transmitter coil <NUM>, and optionally converts from electrical to optical control signals for data transmission through an infrared (IR) emitter <NUM>.

The inductive transmitter coil <NUM> includes wire wound circumferentially about, and radially extending away from, a longitudinal axis of stem <NUM>. The inductive transmitter coil <NUM> defines a plane that is generally parallel with that defined by a tee-cap <NUM> of the inductive power emitter <NUM>, which forms flat inductive power-transfer face <NUM> (see, e.g., <FIG>) of the inductive power emitter <NUM>. The tee-cap <NUM> further includes a centrally located shallow internal depression <NUM> for efficiently conveying through the cap <NUM> IR light from the IR emitter <NUM>. <FIG> show additional views of the inductive power emitter <NUM>.

An exterior surface of the flat inductive power transfer face <NUM> of the inductive power emitter <NUM> is located proximate to or in contact with a surface of the inductive power-receiver pad <NUM> of the LED lamp module <NUM> when the inductive power emitter <NUM> and the LED lamp module <NUM> are installed on the standard wall fitting <NUM>. The inductive power-receiver pad <NUM> includes an inductive receiver coil <NUM> located within the inductive power-receiver pad <NUM>. The inductive receiver coil <NUM> includes wire wound and arranged in a manner similar to the wire of the inductive transmitter coil <NUM>. The inductive transmitter coil <NUM> and the inductive receiver coil <NUM> are therefore oriented such that a plane of the inductive transmitter coil <NUM> is substantially parallel to a plane of the inductive receiver coil <NUM>. The inductive receiver coil <NUM> is wound circumferentially about, and radially extends away from, a longitudinal axis of an internal IR receiver mounting cradle <NUM>. The IR receiver mounting cradle <NUM> includes an IR receiver <NUM> (also referred to as an IR detector) arranged to wirelessly detect IR signals from the IR emitter <NUM>.

A circuit board <NUM> and associated circuitry of the LED lamp module <NUM> is mounted on an annular shelf. The circuit board <NUM> and associated circuitry includes inductively powered power supply circuitry, LED color and brightness control circuitry, and RGB LEDs <NUM> that emit colored light through a lens <NUM> (<FIG>) of the LED lamp module <NUM>. For example, the circuit board <NUM> and associated circuitry of the LED lamp module may include an optional microcontroller and associated non-transient machine readable memory, a power transformer, and one or more multicolor channel LED driver integrated circuits (ICs) that employ pulse-width modulation (PWM) dimming.

A gasket <NUM> seals the lens <NUM> to a body <NUM> of the LED lamp module <NUM>. The lens <NUM> and the body <NUM> seal and encase the circuit board <NUM> and associated circuitry of the LED lamp module <NUM> to form a replaceable modular lighting component. Further, inductive power of the LED lamp module <NUM> reduces a risk of electrical shock when installing or replacing the LED lamp module <NUM> when the LED lamp module <NUM> is located underwater. <FIG> show additional views of the LED lamp module <NUM> and components thereof.

The LED lamp module <NUM> may further include a thermal protection circuit as part of the circuit board <NUM> and associated circuitry such that if the LED lamp module <NUM> is detected as being too hot for a particular operating environment, a brightness of the LED lamp module <NUM> is reduced in increments until the LED lamp module <NUM> is determined to be below a designated thermal threshold.

The trim plate <NUM> may be provided in a variety of available ornamental designs and configurations, such as those shown in <FIG>. A first embodiment of the trim plate <NUM> is shown in <FIG>. <FIG> illustrate a second embodiment of an appearance of a trim plate <NUM>'. <FIG> illustrate a third embodiment of an appearance of a trim plate <NUM>" according to embodiments herein.

The RGB LEDs <NUM> are controllable to produce various color modes, which may include solid color light displays at various brightness levels. More generally, show modes (or modes) include color modes as well as predetermined temporal transitions between one or both of color and brightness modes of the RGB LEDs. For example, a show mode may include gradually shifting colors while optionally changing brightness, strobing between colors, or other combinations of color and timing schemes. Table <NUM> below provides examples of modes according to embodiments herein.

In some embodiments, selection of a mode is advanced sequentially until a desired mode is selected. Mode selections may be cycled from Mode <NUM> through Mode <NUM> and back to Mode <NUM>.

Sequences may vary depending on manufacturers. For example, Table <NUM> above shows an exemplary sequence of blue, green, and then red modes. Alternatively, a sequence may vary such as a sequence of red, green, and then blue as modes are cycled. Accordingly, the LED lamp module <NUM> may be configured to use various sequences. In one embodiment, sequence configuration is achieved through an IR command, e.g., a data command that includes a sequence option, such as option number one for the sequence of Table <NUM> saved in memory, option number two for a Pentair sequence (not shown) saved in memory, and so forth. A sequence saved in memory may be recalled based on a number of the desired sequence that may be selectable via the IR interface or other communication means, such as toggling on or off and described below.

In another embodiment, a sequence of the RGB LEDs <NUM> is programmed through IR commands such that any sequence may be downloaded to the LED lamp module <NUM>. For example, sequence configuration commands may include a show number, RGB values for a new show mode, static or dynamic brightness information, and other types of information such as timing and when to cycle another show mode.

In one embodiment, a separate sequencer programmer having an IR emitter is used to provide IR commands that select or define a sequence. In other embodiments, the inductive power emitter <NUM> or LED lamp module <NUM> include one or more user interfaces (such as a waterproof membrane button) for programming or selecting a desired sequence based on input received via the user interface.

Embodiments herein are capable of accommodating various sequences such that behavior across a multi-light system may be synchronized. When all lights in the multi-light system are configured to use a desired sequence, such as a sequence shown in Table <NUM> above, then cycling to a next mode in the sequence will result in the same mode being selected for each light in the multi-light system. To synchronize lights of the multi-light system, lights of the multi-light system are turned on to confirm that color modes of the lights are out of synchronism. Next, lights are turned off for five seconds or more. Lights are toggled on/off three times within three seconds and end in an off condition. Lights are left off for five seconds and subsequently turned on to confirm that all lights are in the first mode, e.g., soft color change in Table <NUM> or a pre-set first mode from a different selected sequence.

Other embodiments include varying types of signals for changing show modes of the LED lamp module <NUM>, such as off/on power switching signals, IR signals, and combinations thereof.

In one embodiment, shows are controllable in response to off/on power switching commands, which may be power-cycling commands. For example, each time power is quickly cycled, a show mode of the LED lamp module <NUM> is indexed to another mode once power transfer resumes. When power is withheld for a sufficiently long duration, instead of indexing the show mode, a memory function of the LED lamp module recalls the last show mode to generate when power transmission resumes. For example, if the mode was last a blue mode, then the next time the light is activated it will once again be in blue mode. To change to the next show mode, the power is then quickly (such as within one second or faster) toggled.

In another embodiment, the IR emitter <NUM> generates pulsed IR light that is received by the IR receiver <NUM>. Pulses of IR light represent bits in a data stream or packet so as to form a serial data transmission protocol. In another embodiment, pulse widths, duty cycle, or frequency are modulated to represent various show modes or other commands.

In one embodiment, certain show modes may be indexed by power cycling whereas commands for modifying attributes of the show are conveyed using IR light or vice versa. For example, a show mode may be selected by power cycling whereas brightness or dimming controls for the show are separately controllable through the IR interface.

It may be appreciated that, before commands are transmitted to the LED lamp module <NUM>, they may be signaled through the electrical supply cable <NUM>, such as by power cycling or other modulation scheme such as frequency shift keying of a 12VAC supply. Signals are then converted from the inductive power emitter <NUM> to the LED lamp module <NUM> as described herein. In other embodiments, signals may be wireless communicated, such as through Bluetooth Low Energy (BLE), Wi-Fi, or other types of wireless personal area network (WPAN) communications with the inductive power emitter <NUM> or the LED lamp module <NUM>.

Embodiments disclosed herein provide a wireless LED lighting device <NUM> including the inductive power emitter <NUM> and the LED lamp module <NUM>. The inductive power emitter <NUM> includes the inductive transmitter coil <NUM> located within the tee cap <NUM> of the inductive power emitter <NUM>, the circuit board <NUM> and associated circuitry of the inductive power emitter <NUM>, and the IR emitter <NUM>. The LED lamp module <NUM> includes the body <NUM> of the LED lamp module <NUM> including the lens <NUM> secured thereon, the circuit board <NUM> and associated circuitry of the LED lamp module <NUM>, the inductive receiver coil <NUM>, the IR receiver <NUM> and the RGB LEDs <NUM>. The circuit board <NUM> and associated circuitry of the inductive power emitter <NUM> is in electrical communication with a power source through the electrical supply cable <NUM> to receive external power and signals. Power is transmitted to the LED lamp module <NUM> for illumination of one or more of the RGB LEDs <NUM> through the cooperation between the inductive transmitter coil <NUM> of the inductive power emitter <NUM> and the inductive receiver coil <NUM> of the LED lamp module <NUM>. An external signal, such as an infrared signal, is transmitted to the circuit board <NUM> and associated circuitry of the LED lamp module <NUM> through the cooperation between the IR emitter <NUM> of the inductive power emitter <NUM> and the IR receiver <NUM> of the LED lamp module <NUM>. The infrared signal is received on the circuit board <NUM> and associated circuitry of the LED lamp module <NUM> to achieve control of the one or more RGB LEDs <NUM> of the LED lamp module <NUM>. The inductive power transmitter <NUM> is substantially sealed when connected to the electrical supply cable <NUM>, so that the inductive power transmitter <NUM> is substantially sealed. Further, LED lamp module <NUM> is similarly substantially sealed separate from the inductive power transmitter <NUM>. In this way, power and any signals are transmitted wirelessly between the inductive power transmitter <NUM> and the LED lamp module <NUM>, while the usage of any exposed wiring and contact is avoided, which makes the wireless swimming pool lamp convenient to install and replace, with a high safety performance and long service life. And due to the use of the infrared signal transmission, signal stability is increased.

Embodiments herein advantageously allow for the LED lighting device <NUM> to be installed in an environment, such as underwater at a swimming pool or other similar environments. Embodiments of the LED lighting device <NUM> are installable on existing standard wall fittings of a pool or other environment without requiring substantial modification of an installation location of the LED lighting device <NUM>. Further, aspects of the LED lighting device allow for the LED lamp module <NUM> to be easily swapped, repaired, or replaced without requiring draining of water from the environment in which the LED lighting device is installed.

Claim 1:
An LED lighting device (<NUM>) installable on a standard wall fitting (<NUM>) having a cylindrical body (<NUM>), a threaded interior section (<NUM>) located, and an annular stop (<NUM>) located at an end of the threaded interior section (<NUM>), the LED lighting device (<NUM>) comprising:
an inductive power transmitter (<NUM>) including
a housing (<NUM>) shaped to fit through the standard wall fitting, the housing having a first end and a second end,
a tee top (<NUM>) located at the first end of the housing including a flat inductive power transfer face (<NUM>) located on
an end thereof and an underside surface shaped to contact the annular stop (<NUM>) of the standard wall fitting, and
an inductive transmitter coil (<NUM>) located within the tee top and arranged such that a plane of the inductive transmitter coil is substantially parallel to the flat inductive power transfer face (<NUM>) of the tee top, the inductive transmitter coil (<NUM>) in electrical communication with a power source (<NUM>); and
an LED lamp module (<NUM>) including an LED lamp body (<NUM>) including an upper end and a lower end, the LED lamp body containing one or more LEDs (<NUM>), a threaded male portion (<NUM>) formed on the lower end of the LED lamp body and shaped to threadably engage the threaded interior section (<NUM>) of the standard wall fitting, the threaded male portion (<NUM>) including a flat surface formed on an end thereof,
an inductive power receiver pad (<NUM>) located adjacent the flat surface of the threaded male portion, and
an inductive power receiver coil (<NUM>) located within the threaded male portion proximate to the inductive power receiver pad;
wherein the tee top of the inductive power transmitter (<NUM>) is configured to be located between the annular stop (<NUM>) of the standard wall fitting and the inductive power-receiver pad (<NUM>) of the LED lamp module (<NUM>).