Abstract: An electron source according to the present disclosure includes a columnar portion made of a first material having an electron emission characteristic; and a tubular portion that is disposed to surround the columnar portion and made of a second material having a higher work function than the first material, wherein a hole that extends in a direction from one end face toward the other end face and has a substantially circular cross-sectional shape is formed in the tubular portion, and the columnar portion has a substantially triangular or substantially quadrangular cross-sectional shape and is fixed to the tubular portion in an abutting engagement with an inner surface of the hole.

Abstract: A lighting device may include a substrate, light sources, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. A surface of the resin layer has a flat upper surface and a plurality of side surfaces on an outer side of the flat upper surface. At least one of the plurality of side surfaces of the resin layer has a curved surface. The phosphor layer has a first region disposed on the flat upper surface of the resin layer and a second region disposed on the plurality of side surfaces of the resin layer. Light generated from the plurality of light sources is emitted through the flat upper surface and the curved surface of the resin layer.

Abstract: A wavelength conversion element and a projector including the wavelength conversion element are provided, which have good heat dissipation performance. The wavelength conversion element includes a turntable, a wavelength conversion layer, and a porous structure. The turntable has a wavelength conversion region and a non-wavelength conversion region, and includes a central axis. The wavelength conversion layer is disposed in the wavelength conversion region of the turntable. The porous structure is disposed in the non-wavelength conversion region of the turntable, and a material of the porous structure includes foamed metal.

Abstract: Self-contained devices, systems and methods for housing holiday lights in the form of icicles, and the like, in self-contained boxes that can easily be mounted and removed around house windows and eaves. The lights can be retractable and extendable downward from the boxes, and the lights can be remotely controlled by smart phones and the like. The boxes can have displays for holiday messages as well as speakers for playing music and messages. Another embodiment can include a drop down version where the lights drop down from a housing. Another version can include a fold out version where a support frame having upwardly protruding lights is rotated so that the lights extend below the housing.

Abstract: A light emitting device includes first and second semiconductor laser elements, a base, a surrounding part, a wavelength converting member, and first and second wiring parts. The first laser element, the converting member and the second laser element are arranged in order in a first direction. At least one of the first and second laser elements is disposed between the first and second wiring parts in a second direction perpendicular to the first direction. An outermost periphery of the converting member is between a first imaginary line and a second imaginary line in the top view. The first and second imaginary lines are both parallel to the second direction. The first imaginary line passes through an outermost periphery in the first direction of the second laser element and the second imaginary line passes through an outermost periphery in a direction opposite to the first direction of the first laser element.

Abstract: A sleeping sensory blanket includes a blanket layer and a plurality of waterproof LED lights attached thereto. The lights are arranged along a strip cable configured for powering the lights. The external pocket of the blanket is sized to accept one end of the strip cable, and a battery-operated controller detachably attached to the strip cable to facilitate its removal and washing of the blanket. The connector between the controller and the strip cable is water-resistant. The controller is configured for timed activation of the plurality of LED lights in a sleeping mode with an LED light brightness at or below a predefined LED light brightness threshold and with at least one predetermined transition from a first light pattern to a second light pattern.

Abstract: An auxiliary spare tire brake light is provided for a vehicle having a spare tire with a rim that has spokes and openings and that is secured on lugs at the back of the vehicle. The auxiliary spare tire brake light includes a support disc having a central portion and a peripheral portion. An array of openings is formed in the central portion of the support disc and the openings are positioned to fit over the lugs at the back of the vehicle for positioning the support on the lugs behind the rim of the spare tire. An annular race extends around the peripheral portion of the support and a plurality of lights in the form of LEDs is disposed in the race. The LEDs are arrayed in a closely spaced substantially continuous array around the support to form a ring of LEDs.

Abstract: The present invention relates to an elongate light (1) having: an elongate light carrier (2), which extends along a longitudinal axis (A), the light carrier (2) having a contact face (20) extending along the longitudinal axis (A); an elongate lighting means (3) with a main radiation direction (H), the lighting means (3) extending along the longitudinal axis (A) in order to bear against the contact face (20); an elongate light guide (4), with an end-face input region (40) facing the lighting means (3) for coupling in the light emitted by the lighting means (3), and also with an output region (41) for emitting the light coupled in via the input region (40); and a spring element (5), which is clamped in the light carrier (2) in such a way as to press the lighting means (3) against the contact face (20) and to orient the lighting means (3) in such a way that the end-face input region (40) is opposite the lighting means (3) as viewed in the main radiation direction (H), in order to couple light emitted in the main

Abstract: A linear luminaire includes a three-sided enclosure with a top that is at least translucent and a pair of depending sidewalls spaced apart by the top. The three-sided enclosure may be extruded from a plastic or, in some cases, co-extruded with two different materials so that the pair of sidewalls can be made of an opaque material. The three-sided enclosure may be open along a bottom aspect. An elongate rigid printed circuit board (PCB) carrying LED light engines is installed between the pair of sidewalls in slot structure defined on respective inner faces. The PCB may carry connecting structure staggered along the length of its underside. The PCB may also carry circuit components on its underside.

Abstract: Example embodiments relate to luminaire systems with improved fastening means. One example luminaire system includes a first support provided with a recess. The luminaire system also includes a plurality of light sources arranged on said first support. In addition, the luminaire system includes a second support arranged opposite said first support. Further, the luminaire system includes one or more optical elements provided to said second support, and associated with the plurality of light sources. Additionally, the luminaire system includes a fastening element that includes a head portion and a rod portion. The second support is provided with a through-hole for receiving said head portion. Said rod portion extends through said through-hole and said recess in order to be fixed in the first support and/or in a portion of the luminaire system. The second support is provided with a protruding portion.

Abstract: Disclosed are various embodiments for a lighting system. The lighting system may include a headguard adapted to be worn on a head of an operator, where the headguard comprising a headguard cavity, as well as an elongated flashlight base comprising a flashlight base cavity. A detachable flashlight head is adapted to be positioned in either of the headguard cavity and the flashlight base cavity. The detachable flashlight is sized and positioned such that, when positioned in the headguard cavity, the detachable flashlight magnetically and electrically couples to the headguard. Similarly, the detachable flashlight is sized and positioned such that, when positioned in the flashlight base cavity, the detachable flashlight magnetically and electrically couples to the elongated flashlight base.

Abstract: A lighting device comprises a light-emitting module with light-emitting elements, wherein the light-emitting elements are arranged adjacent to each other and are configured to emit light towards a light-emitting side. The light-emitting module is configured such that the light-emitting elements can be addressed partially independently of each other, such that some may be brought into a switched-on state while others are brought into a switched-off state. A top layer is disposed on the light-emitting module at the light-emitting side. Further comprising a switching material capable of a reversible change in transmittance for the light emitted by changing to a higher transmittance in regions where the top layer situated on light-emitting elements in the switched-on state or to a lower transmittance in regions of the top layer situated in the switched-off state. The invention further refers to methods for producing and operating a lighting device and using a lighting device.

Abstract: A light color emission changing system for changing the color of a white light emitting light source to a selected color includes a light fixture having a base and a socket. The base is mounted on a support and a light emitter is connected with the socket to emit light having a white hue when turned on. A covering is removably positionable over the light fixture such that only one color of light is emitted through the covering.

Abstract: Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board.

Abstract: An illumination system including an excitation light source, a wavelength converting element, and a region-based light splitter is provided. The excitation light source provides an excitation beam. The wavelength converting element is disposed on a transmission path of the excitation beam to convert the excitation beam into an excited beam. The region-based light splitter is disposed on the transmission path of the excitation beam and includes at least one first region and at least one second region. The first region reflects the excitation beam and allows the excited beam to pass through. The second region allows the excitation beam and the excited beam to pass through. The excitation beam reflected by the region-based light splitter is transmitted toward the wavelength converting element. A projection apparatus including the illumination system is also provided.

Abstract: A light emitting module includes: a substrate; a first light source mounted on the substrate, the first light source comprising a first light emitting element configured to emit first light, a light reflecting member surrounding lateral faces of the first light emitting element, and a first wavelength conversion member configured to convert a wavelength of a portion of the first light and to emit second light, such that the first light source is configured to output light that includes the first light and the second light, the first wavelength conversion member covering the first light emitting element and extending out from the lateral faces of the first light emitting element when viewed from above; and a first lens on which the light output from the first light source is incident.

Abstract: Optics (20) for an illumination device (1), as well as an illumination device (1) comprising such optics. The optics comprise at least one lens (30) with a light entry surface (31) and a light exit surface (32). A stepped lens structure (321), such as a Fresnel structure, is formed on the light exit surface. A recurring surface structure, such as periodically arranged prominences (311) and deepenings (321), are formed on the light entry surface (31).

Abstract: The disclosure provides a projection device with a wavelength conversion module including a ceramic substrate, a ceramic intermediate layer, a ceramic reflection layer, and a wavelength conversion layer. The ceramic reflection layer is disposed on the ceramic intermediate layer disposed on the ceramic substrate. The thermal expansion coefficient of the ceramic intermediate layer ranges from the thermal expansion coefficient of the ceramic substrate and the thermal expansion coefficient of the ceramic reflection layer. The wavelength conversion layer is disposed on the ceramic reflection layer.

Abstract: The present disclosure provides a lamp. The lamp includes a lamp holder including a first shell and a light source module, where the first shell includes a first inner chamber and a through hole which is in communication with the first inner chamber, and the light source module is movably disposed in the first inner chamber, and at least part of the light source module extends out of the first inner chamber or retracts into the first chamber through the through hole. The lamp further includes a support column and a lamp base, where the first shell is supported on the lamp base through the support column.

Abstract: A projection device includes a first projection assembly. The first projection assembly includes a first light source assembly, a first lens, a driving device, and a light-transmitting lampshade. The first light source assembly includes a first light source configured to generate projection light. The first lens is arranged on a light path of the first light source. A plurality of first irregular plano-convex lenses are arranged on a light exit side of the first lens. The driving device is connected to the first lens. The driving device is configured to drive the first lens to rotate. The light-transmitting lampshade is arranged on the light path of the first light source and is arranged behind the first lens. The projection light generated by the first light source sequentially passes through the first lens and the light-transmitting lampshade and emits externally.