Abstract: A light emitting diode (LED) light engine that includes an anode supporting base contact having a first arcular geometry; a cathode supporting base contact having a second arcular geometry; and a plurality of light emitting diode (LED) filament structures connected in series, the plurality of light emitting diode (LED) filament structures all connected at a common apex interface, wherein at least a first of the plurality of light emitting diode (LED) filament structures has an anode contact in electrical communication with the anode supporting base contact, and at least a second of the plurality of light emitting diode (LED) filament structures of has a cathode contact in electrical communication with the cathode supporting base contact.

Abstract: A light engine that includes electrical leads extending into a supporting stem and a filament assembly having a V-shaped geometry in electrical connection with the electrical leads. The filament assembly includes at least two light emitting diode (LED) filaments wherein a first end of the filament assembly is in electrical contact with the electrical leads and provides an apex portion of the V-shaped geometry, and a second end of the filament assembly opposite the first end has a second width greater than the first width of the apex portion. An electrically conductive pathway connects the at least two light emitting diode (LED) filaments at the second end of the filament assembly.

Abstract: A lamp including a body for containing a light engine that includes at least a first and second string of said light emitters. The lamp includes driver electronics including an AC-DC switching power supply section of a circuit including a first potentiometer for adjusting total current to the light engine; and a linear topology LED string current control section of the circuit including an operational amplifier controlled by a second potentiometer to operate a field effect transistor (FET) in the linear portion of the FETs operation range to adjust a percentage of the total current to the first and second string of the light emitters. Adjusting the total current adjusts the photosynthetic photon flux (PPF) of light emitted by the lamp. Adjusting the percentage of the total current to the first and second string of the light emitters adjusts the spectral power distribution of light being emitted by the lamp.

Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.

Abstract: A lighting system and related methods are disclosed herein. The lighting system may have a mounting fixture and a light fixture. The mounting fixture is configured to engage a mounting surface. The light fixture is configured to engage the mounting fixture and has a driver configured to drive a light source. A first fastener having a movable elongated member is configured to removably couple the light fixture to the mounting fixture in an extended configuration. A second fastener having a quick connect feature is configured to removably couple the light fixture to the mounting fixture in a retracted configuration.

Abstract: A system, method, and apparatus for retrofitting a fluorescent light fixture accommodating an LED-based lighting system. A track is electrically connected to the driver module. The track includes at least one electronic conductor that is connected along the length of the track. At least one track adapter may connect to the track, and the track adapter includes a locking mechanism that allows the track adapter to connect to the track at any location along the track and the track may be removed. The locking mechanism may permit the track adapter to be removable. At least one light engine module can connect to the track and may also be removable.

Abstract: This disclosure describes systems, methods, and apparatus for operating a power factor correction circuit. The power factor correction circuit can downconvert AC mains power to a lower power suitable for driving one or more LEDs. The power factor correction circuit can provide a regulated current, in a single-stage embodiment, and a regulated voltage, in a dual-stage embodiment. The power factor correction circuit can include an isolation transformer along with a switch for controlling downconversion. The power factor correction circuit can alternatively include a switch without isolation. Either way, the switch can have a duty cycle proportional to a desired downconversion from the AC mains signal, and can skip half cycles of the AC mains signal in order to reduce the downconverted output of the power factor correction circuit.

Abstract: A luminaire that includes a housing having a downlight geometry and containing a light engine including light emitting diodes (LEDs), in which the light engine is positioned to emit light through a light emission end of the housing. The housing contains driver electronics for controlling power received by the luminaire for powering the light engine. An access opening on a back surface of the housing exposes the driver electronics. A junction box supporting at least a portion of a wireless control module. The junction box having an electrical pathway opening is engaged to the back surface of the housing. The wireless control module is contained in the knockout of the junction box. Electrical communication between the wireless control module and the driver circuit is across a physical electrically conductive pathway that extends through the electrical pathway opening of the junction box.

Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.

Abstract: A system, method, and apparatus for retrofitting a fluorescent light fixture accommodating an LED-based lighting system. A track is electrically connected to the driver module. The track includes at least one electronic conductor that is connected along the length of the track. At least one track adapter may connect to the track, and the track adapter includes a locking mechanism that allows the track adapter to connect to the track at any location along the track and the track may be removed. The locking mechanism may permit the track adapter to be removable. At least one light engine module can connect to the track and may also be removable.

Abstract: A solid-state horticultural lamp is disclosed. The lamp emits a spectrum of light including a first local emission peak between 400-500 nm and a first spectral power distribution (SPD) intensity and a second local emission peak between 500-600 nm and a second SPD intensity, wherein the second SPD intensity normalized to the first SPD intensity is between 0.15-0.35. The spectrum further includes a third local emission peak between 600-700 nm and a third SPD intensity, wherein the third SPD intensity normalized to the first spectral power distribution intensity is between 2.4-2.8. In some cases, a photosynthetic photon flux (PPF) of the light between 600-700 nm is between 3.5-4.5 times a PPF of the light between 400-500 nm, and a PPF of the light between 600-700 nm is between 3.8-4.2 times a PPF of the light between 400-500 nm.

Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.

Abstract: A method and device for variable-beam illumination are disclosed. The device has a light source, a first reflector segment, and a second reflector segment. The first segment has a first parabolic cross section to produce a first light distribution having a wide-angle light distribution. The second segment has a second parabolic cross section to produce a second light distribution that is narrower than the first light distribution. At least one of the first and second segments is movable between first and second positions. At least a portion of the light is reflected to effectuate the first light distribution when the at least one of the first and second segments is in the first position. At least a portion of the light is reflected to effectuate the second light distribution when the at least one of the first and second segments is in the second position.

Abstract: A lighting system and related methods are disclosed herein. The lighting system may have a mounting fixture and a light fixture. The mounting fixture is configured to engage a mounting surface. The light fixture is configured to engage the mounting fixture and has a driver configured to drive a light source. A first fastener having a movable elongated member is configured to removably couple the light fixture to the mounting fixture in an extended configuration. A second fastener having a quick connect feature is configured to removably couple the light fixture to the mounting fixture in a retracted configuration.

Abstract: An edgelit lamp structure is provided. The lamp structure may include at least one optical diffuser having textured surface to direct light; a frame present on at least a portion of a perimeter of the optical diffuser; and a plurality of solid state light emitters that are present between the frame and the optical diffuser, the solid state light emitters emitting light that is received by the optical diffuser.

Abstract: A driver circuit for lighting applications that includes a power input circuit for receiving power; a light emitting diode (LED) output current circuit for interfacing with a light source; and a light emitting diode (LED) power supply circuit for controlling current to the light emitting diode (LED) output current circuit. A controller circuit is present in the circuit for signaling the light emitting power supply (LED) to control current to the light emitting diode (LED) output current circuit. The controller is reset by removing power to the controller. A smoothing capacitor is present for stabilizing at least an output voltage. The circuit further includes a current rectifying circuit that prohibits back current traveling from the smoothing capacitor to the controller circuit when the AC power is off.

Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.

Abstract: A light engine that includes electrical leads extending into a supporting stem and a filament assembly having a V-shaped geometry in electrical connection with the electrical leads. The filament assembly includes at least two light emitting diode (LED) filaments wherein a first end of the filament assembly is in electrical contact with the electrical leads and provides an apex portion of the V-shaped geometry, and a second end of the filament assembly opposite the first end has a second width greater than the first width of the apex portion. An electrically conductive pathway connects the at least two light emitting diode (LED) filaments at the second end of the filament assembly.

Abstract: An illumination device comprises a lighting module that itself includes one or more LEDs; a driver module, physically separate from the lighting module, and comprising for supplying power to the one or more LEDs; a flexible conduit electrically connecting the driver module to the lighting module; an air pathway following the conduit; and a cooling facility for directing air through the lighting module and the driver module, such that the air passes through the air pathway.

Abstract: An apparatus for an LED lamp includes an optic device. At least one light engine wire is connected to the optic device and mounted at least partially external to the optic device. A base is engaged with the optic device. A driver is contained within the base. At least one contact is mounted on the driver in electrical communication with the driver, wherein the at least one contact is in non-engaged contact with the at least one light engine wire.