Abstract: A light guide includes a guiding layer and a reflecting layer. The guiding layer includes a light emitting surface and a bottom surface opposite to the light emitting surface. The reflecting layer is formed on the bottom surface. The reflecting layer is a compound containing polyester polyols, isocyanic aci, butyl acetate and reflective powder, or a compound containing curing agents and reflective powder.

Abstract: A window glass includes an incident surface, an emergent surface opposite to the incident surface, a bottom surface, and a top surface opposite to the bottom surface. The incident surface and the emergent surface are interconnected between the top surface and the bottom surface. A plurality of sawteeth is defined on the emergent surface. Each sawtooth includes a first surface adjacent to the top surface and a second surface adjacent to the bottom surface. In each sawtooth, an angle between the first surface and the incident surface is over 90 degrees. The second surface and the incident surface cooperatively define an acute angle. The acute angle increases from the top surface down to the bottom surface and causes the redirection of early morning sunlight up to a ceiling of a room or building containing the window glass.

Abstract: An exemplary light reflective film painted on a smooth reflective surface of a metal base includes a composition. The composition consists of curing agents and light reflective powders. The curing agents include acrylic monomers, acrylic urethane oligomers, polyester acrylic modified polyester oligomers and photo initiators. A method for manufacturing the light reflective film is also provided.

Abstract: The present disclose relates to a lens. The lens includes a bottom surface; a light input surface depressed from a center of the bottom surface; a light output surface opposite to the light input surface, the light output surface comprising a concave surface located at a center thereof and a convex surface surrounding the concave surface; and total reflective side surfaces. The side surface includes a first and a second side surfaces gradually slanting outwardly along a direction from the bottom surface to the light output surface, and a third side surface and a fourth side surface being perpendicular to the bottom surface. The present disclose also relates to a light source module with the lens.

Abstract: An exemplary light reflective film painted on a smooth reflective surface of a base includes a composition. The composition consists of polyester polyols, isocyanate, N-butyl acetate and light reflective powders. A mass of the polyester polyols and isocyanate is 15%-30% of the total mass of the composition, a mass of the N-butyl acetate is 50% of the total mass of the composition, and a mass of the light reflective powders is 20%-35% of the total mass of the composition. A method for manufacturing the light reflective film is also provided.

Abstract: A lens has a first, second and third optical region. The first, second and third optical region are arranged in sequential order. Space angle defined between each first, second and third optical region, and an optical axis of the lens are different from each other. An LED light module, which has an LED chip and the lens is also provided. The light emitted from the LED chip passes the reflecting surface and refractive surface and radiates from a top of the lens.

Abstract: A lens includes a transparent body and a light diffusion layer. The transparent body includes a bottom face, a light incident face and a light emerging face opposite to the light incident face. The light diffusion layer is formed at the bottom face of the transparent body and surrounding the light incident face. Light emitted toward the light diffusion layer can be diverged toward the light emerging face to emit out of the lens.

Abstract: A device for applying a coating on a component where the component includes an inner surface, an outer surface, and end surfaces. The coating device includes a supporting pedestal, a UV light-transparent cover plate, a first pumping device, and an injecting device. The supporting pedestal is configured for holding the inner surface of the component, the end surfaces and the outer surface are exposed in the forming cavity. A through hole is defined in the center of the pedestal and a forming cavity is defined between the cover plate and the component when the cover plate is placed and secured on the pedestal. The first pumping device applies suction to the through hole to hold the component on the pedestal and the injecting device injects UV light-curable coating material in liquid form into the forming cavity.

Abstract: A coating system includes a coating device, a suction device, and a conveyor system. The coating device includes a first holding device including a first surface, a second holding device including a recess and opposite to the first holding device, an o-ring positioned on the first surface. The first holding device couples to the second holding device and a component is held on the first surface. A forming cavity is surrounded by the component, the recess, and the o-ring. Glue is injected into the forming cavity and is formed films over the component.

Abstract: A method of coating a workpiece is provided. In the method, a coating device is provided. The coating device includes a transparent covering plate and an ultraviolet light source device. The workpiece is placed in the coating device. Coating material is injected into the coating device to coat the workpiece. The coating material is ultraviolet light curable material. The ultraviolet light source device emits ultraviolet light and the ultraviolet light passes through the transparent covering plate to cure the coating material on the worpiece. The workpiece is taken out of the coating device.

Abstract: A method for cutting chemically strengthened glass is provided. The chemically strengthened glass includes a first stress layer, a second stress layer, and a tension layer sandwich between the first stress layer and the second stress layer. The method includes: using a green pulsed laser to cut the first stress layer, wherein the green pulsed laser includes a first green pulsed laser having femtosecond level and a second green pulsed laser having nanosecond level; using a ultraviolet pulsed laser to cut the tension layer, wherein the ultraviolet pulsed laser includes a first ultraviolet pulsed laser having femtosecond level and a second ultraviolet pulsed laser having nanosecond level; and using the green pulse layer to cut the second stress layer.

Abstract: A lens has a plurality of first, second, and third optical regions. The first, second and third optical regions are arranged in sequential order. Space angle defined between each first, second, and third optical region and an optical axis of the lens are different from each other. Each first, second and third optical region includes a refracting surface and a reflecting surface which are arranged in different planes. The invention also relates to an LED module having the lens described above.

Abstract: A lens includes a light incident face receiving light from an LED light source, a light exit face, and a connecting face interconnecting the light incident face and the light exit face. The light exit face is a convex face. The connecting face includes a plurality of inclined reflecting planes located at a circumferential periphery of the lens and extending downwardly and inwardly from a position near to an outer edge of the light exit face toward the light incident face. The inclined reflecting planes of the connecting face are positioned around an optical axis of the lens. An LED light source module includes a plurality of the lens each diverging light from a corresponding LED light source and a light diffuser having a plurality of light diffusing units each over a corresponding lens. Each light diffusing unit has a shape of the regular hexagon.

Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, a top face and four lateral faces interconnecting the top face and the bottom face. Each lateral face is perpendicular to two adjacent lateral faces, and parallel to an opposite lateral face. An LED unit incorporating the lens is also disclosed.

Abstract: A method for making the electromagnetic shielding layer is provided. An electronic element has a surface is provided. At least one carbon nanotube film is fabricated. A carbon nanotube film structure is formed on the surface of the electronic element. A conductive layer is formed on the carbon nanotube film structure to obtain the electromagnetic shielding layer on the surface of the electronic element.

Abstract: A light emitting device includes a light source located at a central axis, a light diverging unit, and a circuit board. The light diverging unit includes a first light diverging part comprising a light incident surface facing to the light source, a second light diverging part, and a third light diverging part comprising a light emitting surface. The circuit board carries the light source and the light diverging unit. Light emitted by the light source is transmitted through the first light diverging part, the second light diverging part, and the third light diverging part in sequence, and a refraction index of the second light diverging part is smaller than that of the first and third light diverging parts.

Abstract: A light source module includes a light source, a fixing plate, a plurality of fibers and a plurality of light diverging elements. The light source includes a light outputting surface. The fixing plate is arranged above the light emitting surface of the light source. Each fiber includes a light inputting end which is optically coupled to the light emitting surface and a light outputting end opposite to the light inputting end. Each of the light outputting ends is inserted into the fixing plate. A distance between each two adjacent light outputting ends is greater than the distance between each two adjacent light inputting ends. The light diverging elements are arranged on the fixing plate, and cover the light output surface of fiber.

Abstract: A method of forming films for a component includes providing a curing device. The curing device includes a receiving die defining a groove, a suction device, and a UV curing system. The suction device suctions a component suctioning the component into the groove and defining a gap between the component and the groove. A UV curing glue is injected into the gap, the UV curing glue selected from a monomer, an oligomer, and a photoinitiator. The UV curing glue is cured by the UV curing system so as to form a cured film for easy demolding.

Abstract: A light source module includes a light source and an optical lens assembly covering the light source. The optical lens assembly includes an optical lens, a reflecting member located on the optical lens, and a reflecting film formed on an outer circumferential surface of the reflecting member. The optical lens includes a main portion and a protruding portion. The light emitting face includes a lateral face extending upwardly from the connecting face and a top surface of the protruding portion, and the top surface of the protruding portion is recessed inwardly towards and located above the light incident face. The reflecting member is conical, the reflecting member is invertedly located on the protruding portion, a tip of the reflecting member is inserted into an inside of the optical lens from the protruding portion, and the reflecting film faces the top surface of the protruding portion.

Abstract: An exemplary light reflective film painted on a smooth reflective surface of a base includes a composition. The composition consists of polyester polyols, isocyanate, N-butyl acetate and light reflective powders. A mass of the polyester polyols and isocyanate is 15%-30% of the total mass of the composition, a mass of the N-butyl acetate is 50% of the total mass of the composition, and a mass of the light reflective powders is 20%-35% of the total mass of the composition. A method for manufacturing the light reflective film is also provided.