Abstract: An electrical device includes a housing having a receptacle defined therein, an USB connector received in the receptacle, two first retaining members and a second retaining member. The USB connector includes a front end for coupling with a coupling USB connector and a rear end retainably received in the receptacle. The first retaining members and the second retaining member each includes a V-shaped profile. The first retaining members respectively clamps opposite lateral sides of the USB connector. The second retaining member clamps the rear end.

Abstract: A hinge assembly includes a first connecting member, a second connecting member, and a pivot subassembly. The pivot subassembly connects the first connecting member to the second connecting member. The pivot subassembly includes a rotatable shaft, a sleeve, and a positioning ring. The rotatable shaft is non-rotatably connected to the first connecting member. The sleeve is sleeved on the rotatable shaft, and non-rotatably connected to the rotatable shaft. The positioning ring is non-rotatably connected to the second connecting member. The sleeve defines two positioning cutouts, and the positioning ring defines two positioning protrusions engaging with the positioning cutouts. When the rotatable shaft rotates, one of the sleeve and the positioning ring deforms, so that the at least one positioning protrusion disengages from the at least one positioning cutout.

Abstract: A slide assembly includes an outer slide, a blocking member mounted on the outer slide, an inner slide slidably attached to the outer slide, a sliding block slidably mounted on the inner slide, and a long bar slidably attached to an inner side of the inner slide. A groove is defined in the blocking member. The sliding block is inserted in the groove to fix the inner slide on the outer slide. A slanted protrusion extends from the long bar. When the long bar is pulled towards a first direction, the slanted protrusion pushes the sliding block. The sliding block moves towards a second direction substantially perpendicular to the first direction to disengage the inner slide from the outer slide.

Abstract: A hinge assembly includes a resilient member and two rotary units. Each rotary unit includes a shaft, an outer tube, and an inner tube. The outer tubes are sleeved on the shafts correspondingly. The inner tubes are non-rotatably connected to the shafts and rotatably connected to the outer tubes. The resilient member is positioned between the rotary units, thus causing the inner tubes of the rotary units to resist the outer tubes.

Abstract: An electronic device includes a panel, a main body, a button, and a fastener. The panel defines a hole. The main body defines a quadrate through hole. The button resists against the panel, opposite to the main body. The fastener includes an elastic head at a first end and a block at an opposite second end. The elastic head passes through the hole of the panel to be fixed to the button, the block passes through the quadrate through hole of the main body. A panel fixture for the electronic device is provided as well.

Abstract: A dual voltage switching circuit includes a first resistor and two transistors. Each transistor has a first terminal, a second terminal, and a third terminal. The first terminals are connected to a control terminal of a computer. The second terminals are connected to a standby power supply of the computer. The third terminals are connected to a power-on terminal of the computer via the first resistor. When the first terminals receive a low level signal from the control terminal, the first and second transistors are on, and the power-on terminal receives a voltage form the standby power supply via the first resistor.

Abstract: A rotation module includes a base and a rotation member rotatably positioned on the base. The base includes a resisting surface and a connecting surface opposite to the resisting surface. A cylindrical protrusion is formed on the resisting surface. A locking portion is formed at an end of the cylindrical protrusion. The cylindrical protrusion defines an opening through the locking portion. The rotation member includes a bottom surface and a supporting surface opposite to the bottom surface. The rotation member defines a circular through hole. The locking portion is deformable due to the opening so that the cylindrical protrusion is able to pass through the circular through hole. The locking portion releases after the locking portion passes through the circular through hole and resists the rotation member to prevent the rotation member from detaching from the base.

Abstract: A stereoscopic display device includes a substrate, a plurality of odd-line light source units, a plurality of even-line light source units, a lens array, and a circuit. The odd-line light source units and the even-line light source units are provided at a first side of the substrate and spaced from each other. Each of the odd-line light source units and the even-line light source units include a plurality of light source pixel units. The lens array is arranged on the substrate at the first side thereof and includes a plurality of cylindrical stripe-like lenses, the cylindrical stripe-like lenses extending substantially parallel to each other. The circuit is configured for alternately outputting a first time sequence display signal to the odd-line light source units and a second time sequence display signal to the even-line light source units.

Abstract: A system for cutting a given portion of a surface of a core insert includes a piezoelectric actuator, a turning tool, a rotating member, a driving unit and a numerically-controlled unit. The controlling unit stores coordinates of the storing coordinates of each point on the given portion of the surface in a predetermined coordinate system, and compares the instant coordinates of the cutting portion of the turning tool with the stored coordinates of the given portion, thus controlling the piezoelectric actuator to drive the turning tool to cut the given portion of the surface if the coordinates of the cutting portion of the turning tool match with the stored coordinates of any point on the given portion of the surface.

Abstract: An electronic device includes a first main body defining a SIM card seat, a SIM card disposed in the SIM card seat, and a SIM card retention assembly comprising a retaining member fixed to the first main body adjacent to the SIM card seat, a positioning member fixed to the retaining member, and a rotary member rotatably connected to the first main body between the retaining member and the SIM card seat. The rotary member can be rotated relative to the first main body in a substantially horizontal plane. The positioning member is configured for positioning the rotary member to make the rotary member fix the SIM card in the SIM card seat tightly.

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 plate includes a light output surface and a bottom surface opposite to the light output surface. The light output surface defines a plurality of triangular pyramidal depressions and a plurality of four-sided pyramidal depressions. Each four-sided pyramidal depression is surrounded by four triangular pyramidal depressions.

Abstract: An artificial eye includes a supporter, a first clipping member, a second clipping member and an electroactive pupil. The second clipping member is positioned on the supporter. A peripheral portion of the second clipping member is positioned on a peripheral portion of the first clipping member. A gap is defined between the first and second clipping members. The electroactive pupil is positioned in the gap and contacts the first and second clipping members.

Abstract: An exemplary solid-state light emitting device includes a substrate, a light emitting structure, a first electrode and a second electrode have opposite polarities with each other. The light emitting structure includes a first-type semiconductor layer, a second-type semiconductor layer and an active layer between the first-type semiconductor layer and the second-type semiconductor layer. The first electrode electrically is connected with the first-type semiconductor layer. The first electrode includes a first contact pad and a current induced electrode spaced apart and insulated from each other. The second electrode has an opposite polarity with respect to the first electrode. The second electrode includes a transparent conductive layer formed on and electrically connected with the second-type semiconductor layer and a metallic conductive layer formed on the transparent conductive layer and in electrical contact therewith.

Abstract: A projecting device includes a light source, a filtering component, a reflecting mirror, a digital micro-mirror device, a projecting lens, and a panel. The filtering component changes lights emitted from the light source into substantially parallel polarized ultraviolet lights. The reflecting mirror reflects the substantially parallel polarized ultraviolet lights to the digital micro-mirror device. The digital micro-mirror device includes microscopic mirrors arranged in a rectangular array configured to be adjustable to reflect the substantially parallel polarized ultraviolet lights reflected by the reflecting mirror to the projecting lens. The projecting lens diverges the substantially parallel polarized ultraviolet lights. The panel includes a transparent substrate, a first fluorescence material layer, a second fluorescence material layer, and a third fluorescence material layer.

Abstract: A method for manufacturing a field emission element, the method includes providing one supporting member and wrapping a carbon nanotube (CNT) film around an outer surface of the supporting member at least once. The CNT film includes a plurality of bundles of carbon nanotubes connected in series.

Abstract: An exemplary hinge assembly includes a mounting bracket, a rotatable bracket, a swivel mechanism, and two pivot mechanisms. The rotatable bracket defines a sliding groove. The swivel mechanism connects the mounting bracket to the rotatable bracket. The rotating subassembly has a rotating shaft, a first restricting member, and a second restricting member. The first restricting member is rotatably connected to the rotating shaft, and the second restricting member is non-rotatably connected to the rotating shaft. The first restricting member has a restricting portion and a first resisting portion. The restricting portion is movably received in the sliding groove. The second restricting member includes a restricting protrusion. The restricting protrusion is capable of driving the first resisting portion together with the first restricting member to rotate in the sliding groove until the restricting portion reaches an end of the sliding groove.

Abstract: A camera module includes a zoom lens group, a focus lens group, a barrel, an actuator group comprising a first actuator and a second actuator. The first and second actuators are received in the barrel, and respectively receive the zoom lens group and the focus lens group therein. The first lens group is driven by the first actuator to move along the axis thereof. The second lens group is driven by the second actuator to move along the axis thereof.

Abstract: An exemplary apparatus for detecting whether a magnetic element is mounted at a correct position on a retaining member is provided. The apparatus includes a holder, a magnetoresistive sensor, and a processor. The magnetoresistive sensor is held by the holder and capable of sensing a present magnetic flux from the magnetic element to the magnetoresistive sensor. The processor is electrically connected to the magnetoresistive sensor and has a predetermined reference magnetic flux stored information therein, configured for obtaining the present magnetic flux and comparing the present magnetic flux with the reference magnetic flux information, thereby detecting whether a magnetic element is mounted at a correct position on a retaining member.

Abstract: A light chain includes a plurality of light emitting diodes (LEDs) electrically connected to each other. Each LED includes an LED chip having a first pole and a second pole, and a packaging layer encapsulating the LED chip. A first electrode has an inner end connected to the first pole, and an outer end extending to the outside of the packaging layer. A second electrode has an inner end connected to the second pole, and an outer end extending to the outside of the packaging layer. A third electrode has a first outer end and a second outer end located at the outside. The outer end of the first electrode and the first outer end cooperatively form a first plug; the outer end of the second electrode and the second outer end cooperatively form a second plug configured to attach to a first plug of an adjacent LED.