Abstract: A voltage conversion device includes a filter circuit, a first inductor, a second inductor a first conversion module, a second conversion module, and a control circuit. The filter circuit is electrically connected to a first AC terminal and a second AC terminal. The first inductor is electrically connected to the first AC terminal and a first conversion terminal. The second inductor is electrically connected to the second AC terminal and a second conversion terminal. The first conversion module is electrically connected to a first DC voltage terminal, a second DC voltage terminal, and the first conversion terminal. The second conversion module is electrically connected to the first DC voltage terminal, the second DC voltage terminal, and the second conversion terminal. The control circuit transmits switch-control signals to the first conversion module and the second conversion module. A voltage conversion method is used with the voltage conversion device.

Abstract: A method for measuring two pupils includes a number of steps. A first visible light beam and a first invisible light beam are emitted toward a right eye. A second visible light beam and a second invisible light beam are emitted toward a left eye. The light beams reflected from the right eye and the left eye are received by an optical unit, and the first invisible light beam and the second invisible light beam are guided to an imaging unit by the optical unit. Images of the right eye and the left eye are respectively recorded through the first invisible light and the second invisible light beam propagated from the optical unit.

Abstract: An apparatus for assembling cable to connector includes a jig holder and a cable jig. The jig holder has a basic board defining a mounting space capable of locating a connector in the front thereof. The cable jig located in the rear of the mounting space of the jig holder has an upper jig member and a lower jig member disposed beneath the upper jig member. One of the jig members protrudes to form first spaced-apart barriers. A first receiving passage is defined between each pair of adjacent first spaced-apart barriers. The other jig member defines second receiving passages for receiving the first spaced-apart barriers respectively. A second spaced-apart barrier is defined between every two adjacent second receiving passages to space the two adjacent second receiving passages apart. The second spaced-apart barriers are inserted in the first receiving passages respectively.

Abstract: An apparatus for assembling cable to connector includes a jig holder and a cable jig. The jig holder has a basic board defining a mounting space capable of locating a connector in the front thereof. The cable jig located in the rear of the mounting space of the jig holder has an upper jig member and a lower jig member disposed beneath the upper jig member. One of the jig members protrudes to form first spaced-apart barriers. A first receiving passage is defined between each pair of adjacent first spaced-apart barriers. The other jig member defines second receiving passages for receiving the first spaced-apart barriers respectively. A second spaced-apart barrier is defined between every two adjacent second receiving passages to space the two adjacent second receiving passages apart. The second spaced-apart barriers are inserted in the first receiving passages respectively.

Abstract: A cable testing device of the present invention can test sheltering performance of a cable which has a central wire, a shelter wrapped around the central wire and an exterior cover wrapped around the shelter. One end of the central wire and two ends of the shelter are earthed. The cable testing device includes a network testing device and a metal tube. The network testing device has an input which is connected to the other end of the cable and an output. The metal tube incloses the cable to be tested, one end of the metal tube is connected to the output of the network testing device, the other end is earthed. As a result, an electromagnetic field is formed in the interior of metal tube, thereby, the sheltering performance of the shelter of the cable can be tested directly before the whole cable product being assembled.

Abstract: A digital camera module (200) includes a chip package (20) and a lens module (50) mounted to the chip package. The package includes a carrier (21), a chip (23), a plurality of wires (24), a supporting member (25), an adhesive (26), and a cover (28). The carrier has a top surface (211), and a plurality of top contacts (215) arranged on the top surface. The chip is mounted to the top surface of the carrier, and includes an active area (231) and a plurality of pads (233). The wires electrically respectively connect one of the pads to a corresponding top contact. The adhesive is applied to a peripheral circumference of the top surface of the chip. The cover is adhered to the adhesive, and closes the active area of the chip. The supporting member is disposed between the carrier and the cover to support the cover.

Abstract: A digital camera module (10) includes a chip package (20) and a lens module (50) mounted to the chip package. The package includes a carrier (21), a chip (23), a plurality of wires (24), an adhesive (26) and a cover (28). The carrier has a top surface (211), and a plurality of top contacts (215) arranged on the top surface around the opening. The chip is mounted to the top surface of the carrier, and includes an active area (231) and a plurality of pads (233) disposed on a top surface thereof. The wires electrically connect each of the pads to a corresponding top contact of the carrier. The adhesive is applied to a peripheral circumference of the top surface of the chip, around the active area. The cover is adhered to the adhesive, and encloses the active area of the chip cooperatively with the adhesive.

Abstract: A digital camera module (10) includes a chip package (20) and a lens module (50) mounted to the chip package. The package includes a carrier (21), a chip (23), a plurality of wires (24), an adhesive (26) and a cover (28). The carrier has a cavity (213) defined therein, an opening defined in a top surface, and a plurality of top contacts (215) arranged on the top surface around the opening. The chip is received in the cavity, and includes an active area (231) and a plurality of pads (233) disposed on a top surface thereof. The wires electrically connect each of the pads to a corresponding top contact of the carrier. The adhesive is applied to a peripheral circumference of the top surface of the chip around the active area. The cover is adhered to the adhesive, and encloses the active area of the chip cooperatively with the adhesive.

Abstract: A microscale air-cleaning device is provided that includes an integrated circuit chip, carbon nanotubes, and a power supply. The carbon nanotubes are assembled on the integrated circuit chip and are connected with the integrated circuit chip. The power supply is provided for powering the integrated circuit chip.

Abstract: An objective lens actuating apparatus is provided for an optical read/write head. The apparatus includes a base; a lens holder floating over the base; an objective lens, fixed on the lens holder; two multi-polar magnets mounted on the base; and two coil plates located between the two magnets and fixed on the lens holder. Each coil plate has a tracking coil, a focusing coil, and a tilting coil, which overlaps different magnetic poles of each magnet. The coils generate Lorentz Forces after currents being input into the coils, so as to drive the lens holder moving or tilting.

Abstract: A built-up cup rack, comprising a cover board, a wall mounting board fastened in said cover board at the back through tongue-and-groove joint, and a plurality of hod-like cup holders transversely fastened in said cover board at the front through plug-in connection for holding cups of different size. Guide boards are obliquely mounted on the cover board to support the hod-like cup holders and guide the water therefrom a flow through a plurality of elongated slots on the cover board into a drain hole for discharging out of the rack.

Abstract: A drain pipe assembly, which includes a S-shaped drain pipe having mounted on its orifice a cup-like filter plate and a strainer and having inserted therein a cleaning brush. The S-shaped drain pipe includes a bent pipe portion extending from a vertical end pipe portion to define therewith a first bent on its upper side and a second bent on its bottom side, wherein the second bent is arranged at a level much higher than the first bent so that impurities and mud carried by rain water can be retained in the bottom of the vertical end pipe portion and vermin can be prohibited from passing therethrough.