Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, two opposite first lateral faces, two opposite second lateral faces and a light emerging face. The two first lateral faces are located adjacent to the light incident face, and the two second lateral faces are located away from the light incident face. The light emerging face includes two convex faces and a concave face interconnecting the two convex faces. The light emerging face has a light diverging capability along a first direction larger than that along a second direction perpendicular to the first direction.

Abstract: A compound lens includes a first lens and a second lens coupled to the first lens. The first lens has a light incident face and a light exit face opposite to the light incident face thereof. The first lens defines a recess at a center of the light exit face thereof. The second lens has a refractive index lower than that of the first lens. The second lens is received in the recess of the first lens and a light incident face of the second lens directly contacts the light exit face of the first lens. A light emitting diode light source device incorporating the compound lens is also provided.

Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident surface facing the light source, and a light emitting face opposite to the light incident face. The light emitted from the light source is entered into the optical lens from the light incident face, and exited from the light emitting face. A refractive index of the optical lens gradually decreases along a direction from the light incident face to the light emitting face of the optical lens.

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 lens includes a first optical layer, a second optical layer and a third optical layer sequentially stacked. The third optical layer has a light refractive index larger than that of the second optical layer, and the second optical layer has a light refractive layer larger than that of the first optical layer. A method for making the lens is also provided.

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 spray gun adjusting device for adjusting painting position of spray gun includes a first axis mechanism and a second axis mechanism slidably positioned on first axis mechanism. First axis mechanism includes a screw rod extending along first direction, a first sliding block, a screw nut sleeved on the screw rod, a first bevel gear fixed to screw nut, a second bevel gear meshing with first bevel gear, and a first driving shaft fixedly connected to second bevel gear, and the screw nut and first driving shaft are rotatably positioned on first sliding block. Second axis mechanism includes a sliding rod along second direction, a second sliding block slidably sleeved on sliding rod, a gear rack fixed to sliding rod, a gear meshing with gear rack, and a second driving shaft fixed to the gear, and second sliding block is fixed to first sliding block of first axis mechanism.

Abstract: An electromagnetic shielding layer comprising at least one conductive layer and a carbon nanotube film structure, the conductive layer being disposed on the carbon nanotube film structure, and comes in contact with the carbon nanotube film structure electrically. A method for making the electromagnetic shielding layer includes the steps of: (a) providing an electronic element, the electronic element having a surface; (b) fabricating at least one carbon nanotube film; (c) forming a carbon nanotube film structure on the surface of the electronic element; and (d) forming a conductive layer on the carbon nanotube film structure, then obtaining an electromagnetic shielding layer on the surface of the electronic element.

Abstract: A spray gun adjusting device for adjusting painting position of spray gun includes a first axis mechanism and a second axis mechanism slidably positioned on first axis mechanism. First axis mechanism includes a screw rod extending along first direction, a first sliding block, a screw nut sleeved on the screw rod, a first bevel gear fixed to screw nut, a second bevel gear meshing with first bevel gear, and a first driving shaft fixedly connected to second bevel gear, and the screw nut and first driving shaft are rotatably positioned on first sliding block. Second axis mechanism includes a sliding rod along second direction, a second sliding block slidably sleeved on sliding rod, a gear rack fixed to sliding rod, a gear meshing with gear rack, and a second driving shaft fixed to the gear, and second sliding block is fixed to first sliding block of first axis mechanism.

Abstract: A method for making a housing comprises of providing a metal substrate; forming a base paint coating on the substrate; vacuum depositing a first metal coating on the base paint coating, the first metal coating being a chromium coating or a stainless steel coating; vacuum depositing a second metal coating on the first metal coating, the second metal coating being a commix metal coating containing chromium and stainless steel; and vacuum depositing a third metal coating on the second metal coating, the third metal coating being a stainless steel coating. A housing made by the above mentioned method is also described there.

Abstract: A panel for a display comprises a transparent substrate, a color changing coating formed on one surface of the substrate, an anti-reflection coating formed on the color changing coating, and a metallic coating formed on the anti-reflection coating. The substrate is formed with a plurality of light scattering portions whose density gradually changes on one surface of the substrate. An electronic device using the panel is also provided.

Abstract: A panel for a display comprises a transparent substrate, an anti-reflection coating formed on one surface of the substrate, and a metallic coating formed on the anti-reflection coating. The substrate is formed with a plurality of light scattering portions whose density gradually changes on one surface of the substrate. An electronic device using the panel is also provided.

Abstract: A panel for a display comprises a transparent substrate, a first light transmission enhancing coating formed on one surface of the substrate, a second light transmission enhancing coating formed on the other surface of the substrate, and a metallic coating formed on the second light transmission enhancing coating. An electronic device using the panel is also provided.

Abstract: A method for making a housing comprises of providing a metal substrate; forming a base paint coating on the substrate; vacuum depositing a first metal coating on the base paint coating, the first metal coating being a chromium coating or a stainless steel coating; vacuum depositing a second metal coating on the first metal coating, the second metal coating being a commix metal coating containing chromium and stainless steel; and vacuum depositing a third metal coating on the second metal coating, the third metal coating being a stainless steel coating. A housing made by the above mentioned method is also described there.

Abstract: A cover for a display screen is described. The cover for a display screen comprises a transparent substrate, a light transmission enhancing coating formed on the substrate, and a metallic coating formed on the light transmission enhancing coating. An electronic device by having the cover for a display screen is also described.

Abstract: A nonconductive surface metallization method of plastic substrate comprising: providing a plastic substrate; and forming a black-colored and nonconductive alloy coating on the plastic substrate surface by a vacuum evaporating process, the alloy coating being formed by a target comprising a first material and a second material, the first material being a steel, the second material being selected from a group consisting of indium, tin, aluminium and silicon dioxide. A plastic article has a black-colored and nonconductive alloy coating is provided in the present disclosure.

Abstract: A housing, comprising: a substrate; a micro-arc oxide film formed on the substrate; and a plurality of grooves formed on the oxide film; wherein all or part of the oxide film is polished to present a glossy appearance, the grooves are formed on the polished region of the oxide film. A method for making housing, comprising: providing a substrate; micro-arc oxidizing the substrate to form a micro-arc oxide film on the substrate; polishing at least part of the micro-arc oxide film; and etching the polished surface of the micro-arc oxide film to form grooves in the polished surface.

Abstract: A method for making housing, comprising: providing a substrate; etching the substrate to form a plurality of grooves on a surface of the substrate; micro-arc oxidizing the substrate to form a micro-arc oxide film in the grooves and on the surface of the substrate; and polishing the micro-arc oxide film formed on the surface of the substrate. A housing, comprising: a substrate, the substrate having a plurality of grooves defined therein; and a micro-arc oxide film formed on the surface of the substrate and in the grooves; wherein the oxide film formed on the surface of the substrate is polished to present a glossy appearance.

Abstract: A process for surface treating a plastic substrate is provided. The method includes the steps of providing a plastic substrate; forming a golden-colored vacuum coated layer which is nonconductive on the plastic substrate; and forming a protective coating on the vacuum coated layer. A golden vacuum coated layer which is nonconductive is formed on the plastic substrate by the present process.