Abstract: An injection molding machine includes a hydraulic driving system providing hydraulic power; a molding system configured for molding a workpiece; and an injection system configured for injecting a molten material to the molding system with the hydraulic power. The injection system includes a cylinder and a piston movably received in the cylinder. The cylinder is surrounded by one of an alternating current-charged coil of wire and a closed-loop coil of wire, and the piston is surrounded by the other, whereby the piston receives acceleration for movement in the cylinder.

Abstract: An exemplary water jet guided laser device includes a water-ejecting device and a hollow light guide pipe. The water-ejecting device has a water chamber, a light incident through hole and a water-ejecting through hole defined at opposite sides thereof. The light incident through hole and the water-ejecting through hole are in communication with the water chamber. The water-ejecting device is configured for ejecting water from the water chamber through the water-ejecting through hole. The light incident through hole is configured for introducing a laser beam in the water chamber. The hollow light guide pipe is mounted in the water chamber and aligned with the light incident through hole and the water-ejecting through hole. The light guide pipe is watertight and is configured for receiving and guiding the laser beam from the light incident through hole to the water-ejecting through hole.

Abstract: An exemplary torque testing system includes a first screwdriver, a second screwdriver, a height measuring device, and a processor. The first screwdriver turns the first structure into the second structure using a maximum torque until the depth of the first structure turned into the second structure equals a predetermined minimum depth or the first structure is unable to be turned by the maximum torque. The second screwdriver turns the first structure into the second structure using a minimum torque until the first structure is unable to be turned by the minimum torque. The height measuring device measures the height of the combined first structure and second structure. The processor determines that the engagement between the first structure and the second structure is satisfactory, if the height of the combined first structure and second structure is in a range from a minimum height to a maximum height thereof.

Abstract: An exemplary fiber optic connector includes four converging lenses and a main body. The main body includes a first surface and a opposite second surface. The first surface defines four receiving holes for receiving four optical fibers. The converging lenses are arranged on the second surface and align with the respective receiving holes. The second surface defines two receiving slots for fixedly receiving two fixing protrusions of a complementary fiber optic connector, as well as two buffer slot. The two buffer slots each are located between the converging lens and the receiving slot, and are configured for allowing two portions of the main body to be bendable, such that precise alignment of the converging lens and the receiving slot is maintained.

Abstract: A solar-powered illumination device includes a solar-thermal-electric power system transforming solar power into electric energy, an illumination module electrically connecting with the solar-thermal-electric power system, a heat dissipation device dissipating heat generated by the illumination module and a heat-collection box receiving at least a part of the heat dissipation device therein. The solar-thermal-electric power system drives the illumination module to illuminate. The heat dissipated by the at least a part of the heat dissipation device is collected by the heat-collection box and transferred into the solar-thermal-electric power system. The solar-thermal-electric power system transforms the heat dissipated by the at least a part of the heat dissipation device into electric energy.

Abstract: A micro-lens array fabrication apparatus includes a first roller, a second roller, a molding member, and a cooling member. The first roller and the second roller revolve cooperatively to position portions of a substrate on the molding member while maintaining a tension on the substrate. The molding member includes a shaft and two caps connected to opposites ends of the shaft. The shaft defines a through hole and rows of molding holes in a lateral surface thereof, and forms heaters in the though hole. The heaters heat up the substrate till molten, and the air is driven to blow the molten substrate into the molding holes and form a row of micro-lens structures on the currently positioned portion of the substrate.

Abstract: An imprinting mold includes a mold body including a top molding surface, an air flue formed through the mold body, and a breathable member. The air flue includes a first end exposed at the top molding surface, and a second end. The breathable member is filled in the first end of the air flue. The breathable member has an exposed surface smoothingly adjoining the molding surface. An imprinting molding method using the imprinting mold is also provided.

Abstract: An exemplary ejection mechanism includes a first plate and a second plate opposite to the first plate, an ejector plate, ejectors, an actuator with a driving shaft, and a drive mechanism. The ejector plate and the drive mechanism are located between the first plate and the second plate. The ejection mechanism further defines first through holes which pass through the first plate and the second plate. The ejector plate defines a second through hole which is coaxial with the first through holes. The ejector extends from the ejecting plate to the first plate and aligns with the ejector hole of the first plate. The drive mechanism links with the driving shaft and the ejector plate, and the actuator drives the ejector plate between the first plate and the second plate via a drive mechanism, which makes the ejector eject or retract.

Abstract: An injection molding machine includes a hydraulic driving system providing hydraulic power; a molding system configured for molding a workpiece; and an injection system configured for injecting a molten material to the molding system with the hydraulic power. The injection system includes a cylinder and a piston movably received in the cylinder. The cylinder is surrounded by one of an alternating current-charged coil of wire and a closed-loop coil of wire, and the piston is surrounded by the other, whereby the piston receives acceleration for movement in the cylinder.

Abstract: An exemplary spray apparatus includes a first nozzle assembly and a second nozzle assembly, which are parallel to each other. The first nozzle assembly includes a plurality of feed inlets and a feed outlet in communication with the feed inlets. The first nozzle assembly configured for spraying a liquid coating material on a substrate. The feed inlets are aligned along a first imaginary straight line. The second nozzle assembly includes a plurality of air inlets and an air outlet in communication with the air inlets. The second nozzle assembly is configured for spraying air with uniform air toward the liquid coating material applied on the substrate. The air inlets are aligned along a second imaginary straight line parallel with the first imaginary straight line.

Abstract: A lens module fixing device for fixing lens module is disclosed. The lens module fixing device includes a fixing tray, a transparent and an air pumping device. The fixing tray includes a comprising a first surface and a second surface opposite to the first surface. The fixing tray defines a plurality of first through holes passing through the first surface and the second surface. The diameter of the end of the first through hole at the first surface is less than that of the end of each first through hole at the second surface. The covering is covered on the second surface of the fixing tray and defining an inner space together with the fixing tray. The air pumping device is connected to one of the fixing tray and the cover and in communication with the inner space for evacuating air from the inner space.

Abstract: An optical fiber connector includes a housing, and two lenses. The housing defines two first blind holes each configured for receiving an optical fiber. The two lenses are formed on the housing and each of the lenses is aligned with a corresponding first blind hole. The two second blind holes are defined on the housing and each of the second blind holes run through the housing to the bottom of a corresponding first blind hole allowing air in the first blind hole vent out when the optical fiber is inserted into the first blind hole.

Abstract: A method of machining a roller utilizes a laser machining system is disclosed. The roller includes a main body and two spindles extending from opposite end surfaces of the main body. The laser machining system includes a laser device, an adjustment device, and a controller. The laser device scans the position of the roller and sends a scanned signal to the controller. The controller analyzes the scanned signal, and if the roller is positioned at the exact position, the controller will send a signal to the laser device, and then the laser device begins to machine the roller. If not, the controller will send a signal to the adjustment device, the adjustment device adjusts the roller to the exact position, then the controller sends a signal to the laser device, and the laser device begins to machine the roller.

Abstract: A method of manufacturing a brightness enhancement film utilizes a roller with an outer surface and a plurality of slot portions formed thereon by sandblasting and includes heating a substrate, rolling the textured roller on to the substrate such that the slot portions imprint the substrate and form a plurality of protrusions thereon, and cutting the substrate which has been imprinted to provide a brightness enhancement film.

Abstract: A method of manufacturing brightness enhancement film includes a roller with an outer surface and a plurality of micro-structures formed on the outer surface undergoing sandblasting, thereby forming a plurality of rough portions on the outer surface, rolling the blasted roller onto a substrate whereby the micro-structures and the rough portions imprint the substrate to form a plurality of brightness enhancement portions and a plurality of diffusion portions on the outer surface of the blasted roller, and cutting the imprinted substrate to provide a brightness enhancement film.

Abstract: An exemplary fiber optic connector includes four converging lenses and a main body. The main body includes a first surface and a opposite second surface. The first surface defines four receiving holes for receiving four optical fibers. The converging lenses are arranged on the second surface and align with the respective receiving holes. The second surface defines two receiving slots for fixedly receiving two fixing protrusions of a complementary fiber optic connector, as well as two buffer slot. The two buffer slots each are located between the converging lens and the receiving slot, and are configured for allowing two portions of the main body to be bendable, such that precise alignment of the converging lens and the receiving slot is maintained.

Abstract: A solar-powered illumination device includes a solar-thermal-electric power system transforming solar power into electric energy, an illumination module electrically connecting with the solar-thermal-electric power system, a heat dissipation device dissipating heat generated by the illumination module and a heat-collection box receiving at least a part of the heat dissipation device therein. The solar-thermal-electric power system drives the illumination module to illuminate. The heat dissipated by the at least a part of the heat dissipation device is collected by the heat-collection box and transferred into the solar-thermal-electric power system. The solar-thermal-electric power system transforms the heat dissipated by the at least a part of the heat dissipation device into electric energy.

Abstract: A cooling device includes a housing and a die. The housing includes a top, a bottom, and a plurality of sidewalls interconnecting the bottom and the top. Two opposite sidewalls of the housing respectively defines a plurality of first inlets and outlets. The die is received in the housing and defines a plurality of first passages spanning opposite side surfaces, and the first passages are aligned with the first inlets and the outlets of the housing. A second passage is defined between the die and the sidewalls of the housing. The first and second passages are configured for conducting the cooling fluid to cool the die.

Abstract: A device capable of picking up optical elements includes a first suction member, a second suction member, a vacuum pump unit and a liquid spraying unit. The first suction member defines a chamber. The second suction member is arranged around the first suction member to form an annular space. The vacuum pump unit pumps the air out of the chamber and the annular space to create a vacuum therein, which generates a suction force to suck the optical elements respectively. The liquid spraying unit communicates with the chamber and the annular space, and pours the liquids into the chamber and the annular space. When the liquid volatilizes in the chamber and the annular space to fill the vacuum, the optical elements disengage from the first suction member and the second suction member respectively.

Abstract: A injection molding die includes a first molding unit, a second molding unit, at least one slide block, and a number of elastic elements disposed between the slide block and the first molding unit. The first molding unit includes a first molding surface and a sidewall surrounded the first molding surface. At least one gap is defined in an edge between the sidewall and the first molding surface. The gas hole is exposed at the gap for providing gas to the gap. The slide block is capable of moving toward or away from the sidewall, and includes a protrusion for engaging in the gap to cover the gas hole. The protrusion includes a protrusion surface coplanar with the first molding surface. The second molding unit includes a second mold surface defining a mold cavity cooperated with the first molding surface, the protrusion surface, and the at least one slide block.