Abstract: The present disclosure provides a light distribution element and a light source module. The light distribution element includes: a light incident surface which is in the shape of a smooth inward concave curved surface and forms an accommodation cavity for accommodating a light emitting unit; and a light emitting surface which is in the shape of a smooth outward convex curved surface and is provided opposite to the light incident surface. There is a difference between the thickness of the light incident surface and the thickness of the light emitting surface, thus in the light spot formed by the light emitted from the light emitting surface where the thickness is relatively large, the color tolerance between a yellow spot and white light is less than a preset color difference.

Abstract: A spark plug includes: a central electrode extending from a front end side to a rear end side along an axis; an insulator including a front end section formed to be a bottomed tube surrounding a tip of the central electrode; a metal shell shaped to be tubular and structured to support the insulator such that the front end section of the insulator projects to the front end side from a front end section of the metal shell; and a plurality of ground electrodes each of which includes a first end forming a discharge gap with the front end section of the insulator and includes a second end connected to the front end section of the metal shell. The plurality of ground electrodes include a pair of ground electrodes different from each other in size of their discharge gaps.

Abstract: The present disclosure discloses an LED meshwork lamp and a production method thereof. The LED meshwork lamp includes: at least two LED string lights which are arranged in parallel along a lateral direction, the LED string light including a first conducting wire, a second conducting wire, a third conducting wire, a plurality of SMD LEDs and a plurality of encapsulation colloids; at least two auxiliary wires, the at least two auxiliary wires and the at least two LED string lights being arranged alternately one by one in parallel and spaced apart along the lateral direction; and a plurality of connecting members configured to interlace the plurality of lamp beads of each LED string light with two auxiliary wires on both sides of the LED string light to form a meshwork structure.

Abstract: In an embodiment, a light source module may include a substrate, a light emitter comprising a light source disposed on one surface of the substrate and including an array of light emitting elements configured to emit light, a support disposed on the one surface of the substrate and accommodating at least a portion of the light emitter, and a transparent member comprising transparent material disposed over the support. The transparent member may include a pattern layer disposed on a first surface of the transparent member and configured to change a pattern of the light output from the light emitting elements, and a first meta-surface disposed on a second surface of the transparent member and including a plurality of first unit structures configured to change an angle of the light that passed through the pattern layer.

Abstract: A light guide plate, a backlight module and a display device are provided. The light guide plate includes a main body and optical structures. The main body has a light-incident surface, an opposite light-incident surface, and an optical surface. The optical structures are disposed on the optical surface. Each of the optical structures has a first optical active surface and a second optical active surface, and the first optical active surface and the second optical active surface are inclined towards different directions and formed in a non-symmetrical shape. A first inclined angle is formed between the first optical active surface and the optical surface. A second inclined angle is formed between the second optical active surface and the optical surface. The first included angle is greater than the second included angle, and a light-emitting angle of the light guide plate decreases exponentially with the first inclined angle.

Abstract: A cover for an exterior aircraft light includes a lens cover structure, attachable to an exterior aircraft light housing and configured to close the exterior aircraft light housing, wherein the lens cover structure has an inside and an outside and is at least partially made of transparent material; and a wear indicator, attached to the inside of the lens cover structure, the wear indicator having a contrasted pattern visible from the outside of the lens cover structure through the transparent material.

Abstract: An electroluminescent device including a lower substrate including glass or an organic polymer, a lower structure disposed on the lower substrate and including an inorganic multilayer disposed on the lower substrate, and an encapsulation structure disposed on the lower structure, in which the lower structure includes a display region defined inside an outline of the inorganic multilayer in a plan view, and a light transmitting region defined inside the outline of the inorganic multilayer in a plan view and having a non-through-hole structure having at least a portion surrounded by the display region, the encapsulation structure overlaps the light transmitting region, and the display region is substantially opaque.

Abstract: An LED heat dissipation structure includes a heat sink, a cover plate, and an air blowing device. The heat sink has fins. Gaps between the fins form a plurality of continuous air flow channels, and air discharge ends of the air flow channels (16) extend to a peripheral surface of the heat sink. The cover plate covers the fins, closes openings of the airflow channels at tip portions of the fins, and partially bulges and forms an air inlet chamber communicating with the air flow channels. The air blowing device forcibly blows air into the air inlet chamber.

Abstract: A spark plug includes a center electrode held inside an insulator, a ground electrode that is provided on a housing holding the insulator and faces the center electrode, and a composite chip formed on at least one of the electrodes. In the composite chip, a core having a mount integral with an electrode base material is formed from a Ni alloy material, and a surface layer having a discharge portion covering a protrusion end surface of the core and a side surface coating covering a side surface is formed from a Pt alloy material. The coating thickness S of the side surface coating in the radial direction, the outer diameter D1 of the discharge portion, and the coating length L1 of the side surface coating in the axial direction satisfy: S?D1/20+L1/10?0.005 mm.

Abstract: A light source system includes a laser light source, a transflective optical component, a set of first lenses, a scattering surface, a set of second lenses, an excited light generator, a relay lens, an aperture, and a lens. The laser light source generates light in the first wavelength range irradiating onto the transflective optical component. The transflective optical component reflects a part of the light in the first wavelength range to form first light and transmits a part of the light in the first wavelength range to form second light. The scattered light formed by the first light being scattered on the scattering surface is of uniformly distributed light intensity and converges with the light in the second wavelength range generated by the excited light generator under excitation of the second light to form output light, which is of uniform brightness. A light source adjusting method is further provided.

Abstract: There is provided a new and improved optical body, a new and improved method for manufacturing an optical body, and a new and improved light emitting device that can emit light derived from a light source in more various manners. The optical body includes: a base material; and a first concave-convex structure that is formed on at least one surface of the base material and that extracts internally propagating light that is injected into an inside of the base material from a side surface of the base material. An average period of concavity and convexity of the first concave-convex structure is more than or equal to a minimum value of a visible light wavelength band and less than or equal to 10 ?m.

Abstract: A display and a method of coating an alignment film are provided. The method of coating an alignment film includes step S10, providing substrate to-be-coating with the alignment film, positioned the substrate to-be-coating with the alignment film on optical bench; step S11, pressing against to the substrate by a print wheel has alignment film printing template, and rolling by predetermined coating direction, uniform coating alignment liquid on to-be-coating region of the substrate; wherein, the substrate rolling with the optical bench and forms changing angle with horizontal surface during the coating process; and step S12, controlling the optical bench for driving the substrate to vibrate after coating the to-be-coating region. In this invention provides a method could suit to difference mobility alignment film, it could greatly enhances uniformity of the alignment film such decrease opportunity to Mura happened by worse quality of printing the alignment film.

Abstract: A spark plug is described as including an insulator which is situated in a spark plug housing and which has a longitudinal axis and an opening along the longitudinal axis. Furthermore, a center electrode is situated in the opening of the insulator. Furthermore, at least one ground electrode is provided at the spark plug housing. The insulator has a first insulator section and a second insulator section, the first insulator section extending in the direction of the longitudinal axis over a first insulator section length having a first inner diameter. The second insulator section extends in the direction of the longitudinal axis over a second insulator section length having a second inner diameter. Here, the first inner diameter is smaller than the second inner diameter, the first insulator section merging directly into the second insulator section.

Abstract: On a base part forming a ground electrode in a spark plug, a facing surface is formed facing a distal end surface of a central electrode to have a shortest gap between the facing surface and the central electrode. A first slope surface is formed on an upper surface of the base part. A downstream-side end surface is formed parallel with a virtual plane, and connected to the first slope surface. A second slope surface is formed on a lower surface of the base part, connected to a downstream-side end surface. An opposing surface is formed on the lower surface of the base part. A width of the facing surface is wider than a width of the opposing surface. A first angle of the facing surface to the first slope surface satisfies a relationship of 10°??1?40°.

Abstract: The invention provides an outdoor luminaire (100) comprising: —a plurality of lighting devices (10), each lighting device (10) configured to provide lighting device light (11) and each lighting device (10) comprising at least a light source (13); —a plurality of beam shaping optics (20), each beam shaping optics (20) configured to receive lighting device light (11) of one of the lighting devices (10) and configured to beam shape the lighting device light (11) into a beam (12) of lighting device light (11); wherein the outdoor luminaire (100) is configured to provide a beam (112) of luminaire light (101) comprising the beams (12) of lighting device light (11); and wherein the beam shaping optics (20) are configured in an arrangement (120) which is random, phyllotactic or a combination thereof.

Abstract: An electron emission source is provided. The electron emission source comprises a first electrode, an insulating layer, a semiconductor layer, and a second electrode. The first electrode, the insulating layer, the semiconductor layer, and the second electrode are successively stacked with each other. The second electrode is a graphene layer, and the graphene layer is an electron emission end to emit electrons.

Abstract: A lighting module is shown and described having a housing with an opening therethrough. A forward portion of the opening may be enclosed by a cap and a rearward portion of the opening may be enclosed by a transparent media. A second media may extend from the opening through a wall of the housing. The cap may be securable to a bar via a mounting apparatus. A PCBA with one or more operational groups of LEDs may be secured within the opening, such that light may be emitted through the media. A second PCBA with one or more operational groups of LEDs may be secured within the opening, such that light may be emitted through the second media. Each operational group may be integrated with a control system of a vehicle, and may be operated individually or collectively. Each operational group may correspond to similar or different colors of light.

Abstract: A flexible display device including a substrate with an active area having a bending portion and a flat portion, and a peripheral area surrounding the active area; a first emission unit located in the bending portion; a second emission unit located in the flat portion; a first protective layer covering the second emission unit; an optical stack covering the first emission unit and including two or more interfaces having a difference in an index of refraction of 0.1 or more; and a second protective layer covering the first protective layer and the optical stack together.

Abstract: The present disclosure provides a backlight module, and a display panel and a display having the same. The backlight module includes a back plate, a light guide plate, and a reflective sheet. The inner surface of a periphery of the back plate is concavely formed with a groove. The light guide plate is disposed on an inner surface of the back plate, and the reflective sheet is disposed on a bottom surface of the light guide plate facing towards the back plate. The backlight module further includes a spacer. The spacer is disposed between a bottom of the groove and the reflective sheet. A top surface of the spacer facing towards the reflective sheet is closer to the reflective sheet than the inner surface of the back plate, so that a gap is formed between the reflective sheet and the back plate.

Abstract: Provided is a compact light source device that can be manufactured at a low cost and is suitable as an illumination light source for a display device of an electronic device such as an HUD or an ultra-compact projector. This light source device includes a solid-state light source, a collimating optical system that converts light having exited the solid-state light source into a substantially collimated light; and a light guide that allows the light having exited the collimating optical system to enter and allows this light to exit in a direction that differs from a direction of entry. The light source device further includes a polarization converting element that aligns polarization directions of the light exiting the light guide into one direction.