Abstract: A stabilized quantum dot composite includes a plurality of luminescent semiconducting nanoparticles embedded in a matrix comprising an ionic metal oxide. A method of making a stabilized quantum dot composite includes forming a mixture comprising a plurality of luminescent semiconducting nanoparticles dispersed in an aqueous solution comprising an ionic metal oxide. The mixture is dried to form a stabilized quantum dot composite comprising the plurality of luminescent semiconducting nanoparticles embedded in a matrix comprising the ionic metal oxide.

Abstract: A light source device and an electronic apparatus are provided. The light source device includes a substrate, an electrode layer and a surrounding frame disposed on the substrate, a light emitter and a light detector mounted on the electrode layer and located inside of the surrounding frame, and a light permeable member disposed on the surrounding frame and covering the light emitter and the light detector. When the light emitter receives a predetermined current so as to emit an invisible light toward the light permeable member, the light detector receives a reflected part of the invisible light to generate an initial photocurrent. When the light emitter receives a manipulation current so that a detection photocurrent generated from the light detector is less than a first proportion of the initial photocurrent or greater than a second proportion of the initial photocurrent, the light emitter stops receiving the manipulation current.

Abstract: The present disclosure relates to the technical field of electric light sources, particularly to a metal halide lamp and a manufacturing method thereof.

Abstract: A recessed lighting fixture assembly includes a mounting pan having a mounting structure that is configured to be coupled to a ceiling and a pan base coupled with the mounting structure. The pan base defines a pan opening and includes a first quick-connect mounting feature. The light fixture assembly includes a light fixture configured to be secured to the mounting pan such that a portion of the light fixture extends through the pan opening. The light fixture assembly includes an electrical junction box that is configured to supply power to the light fixture. The electrical junction box includes a second quick-connect mounting feature that is configured to engage with the first quick-connect mounting feature to secure the electrical junction box to the mounting pan.

Abstract: According to one embodiment, a multi-electron beam device includes at least: a light-emitting element array; a drive circuit controlling the light-emitting element array in a desired light emission pattern; a photoelectric film emitting electrons due to light emitted by the light-emitting elements; a microchannel plate having microchannels multiplying the electrons, the microchannels being arranged at positions corresponding to the light-emitting elements of the light-emitting element array; and an aperture array having apertures arranged at positions corresponding to the microchannels, the apertures being narrower than output apertures of the microchannels and limiting electron beam sizes emitted from the microchannel plate. At least the photoelectric film, the microchannel plate, and the aperture array are disposed inside a vacuum optical column.

Abstract: Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.

Abstract: Provided is an image display device including: liquid crystal cell; light guide plate that is disposed behind liquid crystal cell and is quadrilateral-shaped; light source that extends along at least one end face of light guide plate and emits light toward the at least one end face; reflective sheet that is disposed on a rear face of light guide plate and reflects, toward liquid crystal cell, the light emitted by light source; and a base plate that is disposed on a rear face of reflective sheet and supports reflective sheet, in which reflective sheet includes, at each of positions corresponding to both end portions of light source, protrusion that protrudes toward light source.

Abstract: A spark plug having excellent ignitability including a rod-shaped center electrode; a ground electrode that includes a facing portion facing a front end portion of the center electrode and forms a discharge gap between the facing portion and the front end portion of the center electrode; an insulator; a metal shell; and a cover portion that covers, from a front end side of the spark plug, the front end portion of the center electrode and the facing portion of the ground electrode to form a pre-chamber and includes injection holes that are through holes.

Abstract: A light bar, a backlight module and a liquid crystal display are provided. The backlight module includes the light bar and a backplane, the light bar includes a PCB, a plurality of LED chips arranged on a surface of the PCB and a protrusion arranged on the other surface of the PCB, and the backplane includes a baseboard defining a through groove. The protrusion on the PCB is inserted into the through groove of the backplane to facilitate heat conduction. In this way, heat generated by the LED chips could be conducted out quickly.

Abstract: Mounting brackets for installing extruded profiles on surfaces, such as walls, ceilings, tile surfaces, etc., may be resilient. The mounting bracket may include a coil spring designed to rotate or pivot with respect to a main body. The spring may apply force to a rear of the surface thus holding or maintaining the mounting bracket in place. The mounting bracket may be a flat spring. The flat spring may apply force to side surfaces of an opening formed in the surface thus holding or maintaining the mounting bracket in place. The mounting bracket may hold an elongated profile designed for recessed LED lighting to the surface.

Abstract: One example embodiment provides a lighting device. The lighting device includes a lighting component, at least one coil, and a driving circuit. The lighting component connects with a movable magnet to project light on a flame sheet from different positions. The coil is disposed adjacent to the movable magnet to apply a magnetic force to move the movable magnet in response to a driving current in the coil. The driving circuit connects with the coil and the lighting component to provide the driving current according to a characteristic parameter of an electronic signal converted from an audio signal. The characteristic parameter includes one or more of an amplitude, a frequency and an envelope of the electronic signal. The lighting component moves with a speed and a direction controlled by the audio signal.

Abstract: Implementations of the present disclosure provide an adapter for use in a processing chamber. In one implementation, the adapter comprises a hollow body having a first end and a second end opposing the first end, a first block and a second block symmetrically disposed within the hollow body about a longitudinal axis of the body, wherein the first block and the second block define a central opening therebetween, and a retention device disposed in contact with the first and second blocks to confine the movement of the first and second blocks with respect to the hollow body. The central opening is sized so that the first block and the second block provide direct contact with a press seal of the lamp.

Abstract: The invention describes a light converting device comprising: a light converter for converting laser light to converted light having a longer peak emission wavelength than the laser light, a heatsink comprising a reflective structure, and a clamping structure mechanically coupling the light converter to the heatsink, the clamping structure for pressing the light converter on a surface of the heatsink such that thermal conductance between the light converter and the heatsink is increased and at least a part of the converted light is reflected by means of the reflective structure when illuminated by means of the laser light, without any adhesive or connection layer between the light converter and the heatsink. The invention further describes a laser-based light source comprising such a light converting device, and a vehicle headlight comprising such a laser-based light source.

Abstract: A luminaire comprising: a light source in the form of at least one LED and a reflector, wherein a peripheral edge of the reflector defines a light exit opening on a side opposite the light source, wherein arranged in the light exit opening is a planar translucent cover wherein microstructures configured to direct and/or scatter light are distributed over the planar translucent cover. The planar translucent cover extends inwards in the direction of the light source, relative to an imaginary plane defined by the peripheral edge of the reflector.

Abstract: A backlight unit, a method for manufacturing the same and a display device are provided. The backlight unit includes a light guide plate, an LED layer and an optical microstructure layer. The light guide plate includes a light incident surface and a light exit surface opposite to the light incident surface. The LED layer is provided on the light incident surface of the light guide plate, and includes plural LED chips arranged in an array. The optical microstructure layer is provided on one of the light incident surface and the light exit surface of the light guide plate, and includes plural optical microstructures in one-to-one correspondence with the plural LED chips. Each of the plural optical microstructures is configured to cause at least a portion of light emitted from a corresponding LED chip to propagate in the light guide plate by total internal reflection.

Abstract: A spark plug includes: a center electrode; a ground electrode that is provided such that a gap for spark discharge is formed between the center electrode and the ground electrode; and a plug cover covering the center electrode and the ground electrode from a front side. The plug cover has a through hole, wherein the plug cover includes a diameter reduction portion formed in a range of 0.1 mm or less from an outer open end of the through hole in a direction along a central axis of the through hole and having a diameter gradually decreasing from the outer open end toward an inner open end of the through hole. A relationship of 0 mm<x?y<0.2 mm is satisfied, where x is a diameter at the outer open end, and y is a diameter at an inner end of the diameter reduction portion.

Abstract: Disclosed herein is a photomultiplier comprising: an electron ejector; a detector; a substrate; and a first electrode in the substrate; a second electrode in the substrate; a third electrode in the substrate; wherein each of the first, second and third electrodes comprises a flat or curved surface at an angle to a normal direction of the substrate; wherein each of the first, second and third electrodes comprises a first end and a second end, the first end being closer to the electron ejector than the second end; wherein the first, second and third electrodes are spatially arranged such that the second ends of the first, second and third electrode are on a same plane, or such that a plane the second ends of the first and third electrodes are on crosses the second electrode.

Abstract: Provided is a field emission device. The field emission device includes a cathode electrode having a first surface and a second surface facing the first surface, the cathode electrode including grooves that are recessed from the first surface toward the second surface, the grooves extending in a first direction parallel to the first surface and emitter structures which are disposed within the grooves and each of which includes a core extending in the first direction and a conductive wire configured to surround the core. The grooves may be arranged in a second direction crossing the first direction, and the emitter structures may be disposed at vertical levels different from each other.

Abstract: Disclosed herein are apparatus, methods, and techniques directed to the manufacturing of heat sinks; specifically the forming of heat sink fins which are joined to a base or substrate so to collectively form a heat sink. Said methods permit full penetration at weld joints between said heat sink fins and said base, and said apparatus permit implementation of improved heat sink manufacturing in a production setting; specifically, in the production of LED lighting fixtures.

Abstract: A steerable illumination fixtures include an emitting source and a refractive optical system that steers an emitted beam by relative translation of the emitting source against the optical system. The light emitting source may be placed along an optical axis of one or more lenses to produce an output beam along that axis, or translated in-plane (orthogonal to the optical axis) relative to the lenses to produce a steered beam. The optical system may include refractive lenses and in some embodiments mixing channels and/or one or more baffles with apertures. The design is typically optimized to produce a round, uniform beam that retains approximately the same power level and beam width as it is steered. It is beneficial, but not required, that a second lens have a diameter equal to or larger than a first lens. The lenses may be configured so that the effective focal plane of the two lenses together is located approximately at the plane of the light emitting source.