Abstract: A presence sensing method for a light comprises detecting a presence of a user by a sensing module having a first sensitivity while the light is off; turning on the light when identifying the presence of the user and keeping the light on for a delay time period which has a preset length; increasing a sensitivity of the sensing module to a second sensitivity after turning on the light; detecting actions of the user by the sensing module having the second sensitivity while the light is on; determining a length of a next delay time period based on the actions of the user during the previous delay time period immediately prior to the next delay time period; and keeping the light on for the next delay time period.

Abstract: A light emitting apparatus comprises: an LED-based light source; a spherical, spheroidal, or toroidal diffuser generating a Lambertian light intensity distribution output at any point on the diffuser surface responsive to illumination inside the diffuser; and a base including a base connector. The LED based light source, the diffuser, and the base are secured together as a unitary LED lamp installable in a lighting socket by connecting the base connector with the lighting socket. The diffuser is shaped and arranged respective to the LED based light source in the unitary LED lamp to conform with an isolux surface of the LED based light source. The base is operatively connected with the LED based light source in the unitary LED lamp to electrically power the LED based light source using electrical power received at the base connector.

Abstract: Aspects of the present disclosure provide an LED lamp assembly, comprising a glass envelope, an LED platform comprising a printed circuit board supported by a stem assembly disposed within the envelope, a base hermetically sealed to the envelope, and a gas disposed within the envelope. The gas is capable of providing both thermal conductivity between the LED platform and the envelope, while also mitigating volatile organic compounds present within the envelope.

Abstract: The present invention discloses an LED lamp comprising a base, a lamp body coupled to the base, a light emitting assembly arranged inside the lamp body, a positioning component fixed on the lamp body and defining a groove, a flexible component having a fixed end fixed to the lamp body and a free end, and a driver board defining a slot and electrically connected with the light emitting assembly, wherein the driver board is disposed in the groove and the free end of the flexible component is locked into the slot. A method for assembling the LED lamp is also described.

Abstract: In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.

Abstract: In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.

Abstract: In some embodiments, a lighting system comprises: a light source; a lens spaced apart from the light source and including a first surface to receive light from the light source, the lens further including a second surface through which at least a portion of the light received by the lens exits; and a cover spaced from the lens and including a first surface to receive at least a portion of the light that exits the lens, the cover further including a second surface through which at least a portion of the light received by the cover exits; the second surface of the lens including a portion convex with respect to the light source; the first surface of the cover including a portion convex with respect to the light source and disposed over the convex portion of the lens. In some embodiments, the second surface of the cover is flat.

Abstract: The present invention discloses a lamp, mounted on a socket when in use, comprising a cap, a housing, and a light source, wherein the cap is adapted to connect to the socket, one of the cap and the housing comprises a tubular body, and the other comprises a cylindrical cavity for accommodating the tubular body, and the tubular body rotates in the cylindrical cavity around an axis of the cap and moves along the axial direction of the cap to effect relative rotation and relative telescopic motion between the cap and the housing. The lamp of the present invention allows both relative rotation and relative telescopic motion between the cap and the housing, therefore facilitating adjustment of the illumination direction, and is adaptable to different types of fittings.

Abstract: The inventive subject matter disclosed herein provides a retainer apparatus for a luminaire assembly. The retainer apparatus includes a spring clamp unit including a clamp element and one or more first springs. The one or more first springs are coupled with the clamp element and the luminaire assembly. The retainer apparatus also includes a lock spring unit comprising a second spring coupled with the luminaire assembly and the clamp element. The second spring of the lock spring unit secures the clamp element in a released position. Responsive to actuation of the second spring, the one or more first springs move the clamp element from the released position to a locked position to secure the luminaire assembly into a recess.

Abstract: A tilting mechanism for a luminaire assembly is provided. The tilting mechanism includes a first rotating connection between a first housing of the luminaire assembly and an exterior surface. The first housing configured to pivot relative to the exterior surface around a first axis defined by the first rotating connection. The tilting mechanism also includes a second rotating connection between the first housing and a second housing of the luminaire assembly. The second housing is configured to pivot relative to the first housing around a second axis defined by the second rotation connection. The first axis defined by the first rotating connection between the first housing and the exterior surface and the second axis defined by the second rotating connection between the first and second housing are transversely oriented with each other.

Abstract: There are provided systems and methods for use with high mast luminaires. For example, there is provided a lighting system that can include a mounting portion and an optical assembly attached to the mounting portion via a rotatable platform. The light system can further include a stop disposed inside the mounting portion, and the stop can be configured to permit a rotation of the optical assembly and to limit the rotation to an angle greater than 360 degrees.

Abstract: A heat sink comprises a heat sink body, which in some embodiments is a plastic heat sink body, and a thermally conductive layer disposed over the heat sink body. In some embodiments the thermally conductive layer comprises a copper layer. A light emitting diode (LED)-based lamp comprises the aforementioned heat sink and an LED module including one or more LED devices in which the LED module is secured with and in thermal communication with the heat sink. Some such LED-based lamps may have an A-line bulb configuration or an MR or PAR configuration. Disclosed method embodiments comprise forming a heat sink body and disposing a thermally conductive layer on the heat sink body. The forming may comprise molding the heat sink body, which may be plastic. In some method embodiments the heat sink body includes fins and the disposing includes disposing the thermally conductive layer over the fins.

Abstract: One or more light emitting diode diodes (LEDs) are attached to a printed circuit board. The attached LEDs are connectable with a power source via circuitry of the printed circuit board. An overmolding material is insert molded an over at least portions of the printed circuit board proximate to the LEDs to form a free standing high thermal conductivity material overmolding that covers at least portions of the printed circuit board proximate to the LEDs. The free standing high thermal conductivity material has a melting temperature greater than about 100° C. and has a thermal conductivity greater than or about 1 W/m·K. In some embodiments, the free standing high thermal conductivity material is a thermoplastic material.

Abstract: According to some embodiments, a composite light source includes at least one blue light source having a peak wavelength in the range of about 400 nanometer (nm) to about 460 nm; at least one LAG phosphor; at least one narrow red down-converter; and wherein the composite light source has a Lighting Preference Index (LPI) of at least 120. Numerous other aspects are provided.

Abstract: A method for controlling the rotational speed of a fan of an LED lamp, comprising: presetting a corresponding relationship between a voltage, a current and a temperature for an LED chip in the LED lamp in the controller, as well as presetting a corresponding relationship between the temperature of LED chip and the speed of the fan in the controller, measuring the voltage and current of the LED chip, obtaining the current calculated temperature of the LED chip through the measured voltage and current, and further determining the current desired fan speed through the obtained current calculated temperature, using the controller to control the fan to rotate at the current desired speed, thereby cooling the LED chip. Additionally a corresponding system for controlling the rotational speed of the fan of an LED lamp and an LED lamp including the system.

Abstract: A connection module is configured for installation between a first luminaire and a second luminaire. The module includes a mounting unit. The mounting unit has a left side configured for docking to a right end of the first luminaire and a right side configured for docking to a left end of the second luminaire. The module also includes a device holder that is shaped and sized to hold at least one electronic device. The device holder is removably mounted to the bottom side of the mounting unit.

Abstract: Provided is a system for mounting electrical components thereon. The system includes an elongated printed circuit board (PCB) configured for coupling a plurality of electrical components thereto. The elongated PCB includes (i) one segment having a first width and (ii) another segment having a second width different than the first width. The other segment is bendable along multiple axes.

Abstract: A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.

Abstract: In an embodiment, the disclosure provides a light source comprising at least one solid state light emitter. The light source, in operation, emits substantially white light having a Lighting Preference Index (LPI) of at least about 105, and this emission from the light source comprises a UV-violet flux of at least about 1%. Use of the lamps, light sources, and methods of the present disclosure may afford the ability to display linens and clothing under energy-efficient LED-based illumination, and may impart an effect to (especially white) clothing, that makes them look cleaner than under illumination by prior art LED lamps.