Abstract: A liquid-cooled heat dissipation system includes a heat absorber; a heat dissipating member; two connecting pipes connecting the heat absorber and the heat dissipating member; and a working fluid filled in the heat absorber, the heat dissipating member, and the connecting pipes. The working fluid is capable of circulating in the circuit. The working fluid includes a base fluid, a plurality of nanoparticles and a protective agent dispersed in the base fluid. A percentage by weight of the nanoparticles in the working fluid is in the range from 0.1% to 3%.

Abstract: Exemplary system and process for assembling a camera module are provided. The system includes a worktable, a light intensity sensor, a lens module holding device and a controlling unit. The worktable provide placement of the image sensor module thereon, thus a center of the image sensor having a coordinate value thereof. The lens module holding device can hold and move the lens module above the worktable, and it has a light source to emit parallel light that converged at a focus point, wherein the light intensity sensor can detect the focus point location and generating a signal associated with a coordinate value of the focus point. The controlling unit can receive the signal and instruct the lens module holding device to move the lens module toward the image sensor module so that the optical axis of the lens module is aligned with the center of the image sensor.

Abstract: A method for manufacturing a hydrodynamic bearing with hydrodynamic pressure generating grooves comprises steps of: step 201: providing a substrate with a first annular protrusion and a plurality of projections formed on a periphery thereof, the projections being in a side of the first annular protrusion; step 202: placing the substrate in a middle of a hollow mold, then injecting a feedstock of powder and molten binder under pressure into the mold to surround the substrate, thus forming a desired bearing preform; step 203: separating the substrate from the bearing preform by means of catalytic debinding; step 204: separating the molten binder from the bearing preform; step 205: sintering the bearing preform to thereby form the hydrodynamic bearing.

Abstract: An exemplary imaging module package includes a substrate, an imaging sensor chip set on the substrate, a housing positioned on the substrate, and a lens module. The housing includes a first chamber enclosing the imaging sensor chip therein, a second chamber coaxially extending from the first chamber for receiving the lens module therein, and a shoulder between the first and second chambers. The shoulder abuts against a top surface of the imaging sensor chip.

Abstract: A fan rotor includes a hub (10), a plurality of blades (20) radially disposed around the hub, and a magnet (30) located in an inner side of the hub. The hub includes a top wall (12) and a sidewall (14) surrounding the top wall. A plurality of spaced first ribs (17) is disposed between the top wall of the hub and a top wall of the magnet. A plurality of spaces (171) is formed between adjacent first ribs for accommodating equilibrium clay (50) therein.

Abstract: A call rejecting system (100) includes a base station (10) and a mobile terminal (20). The base station includes a controlling module (11), a storage module (12) and a comparing module (13). The controlling module is electronically connected to the storage module and the comparing module. The mobile terminal sends prohibited phone numbers to the base station. The prohibited phone numbers is stored in the storage module. When the base station receives a call signal calling the mobile terminal, the comparing module compares the number of the call signal with the prohibited phone numbers sent by the mobile terminal. The controlling module rejects the call signal or transmits the call signal to the mobile terminal according to the result of comparison.

Abstract: A portable electronic device (100) includes a body (10) and a housing (30). The body has a speaker (20) and a groove (13). The speaker is received in the groove. The housing defines at least one main hole (34) and two subsidiary holes (35). The subsidiary holes is disposed adjacent to the at least one main hole.

Abstract: A battery cover latching assembly is for use in a portable electronic device. The battery cover latching assembly includes a battery cover (10), a housing (40) and a locking member (20). The battery cover has a hook (122) formed on end thereof and a receiving hole (116) defined adjacent the hook. The housing has a catching portion formed on one end thereof. The locking member has an operating portion (22) and a cylindrical post (24) extending from one side of the operating portion. A latching portion (244) extends radially from the post and adjoins the operating portion. The operating portion is received the receiving hole of the battery cover. The post of the locking member is rotatably engaged with the catching portion of the housing. The latching portion of the locking member is releasably locked with the hook of the battery cover.

Abstract: A rack (100) configured for holding workpieces is provided. The rack includes a base (10) and a plurality of fixtures (20). The base includes two lateral frames (14) and a fixing frame (16) fitted between the two lateral frames. Each of the lateral frames includes a first stopper (147) and a second stopper (148) mounted thereon. The fixing frame has two fixing poles (164) parallel to the two lateral frames. Each of the two fixing poles has a plurality of latching means (166) mounted thereon in line. The plurality of fixtures rotatably engage with the latching means of the fixing frame and are fitted between the first stopper and the second stopper.

Abstract: A cooling fan includes a fan housing (30) having a central tube (34) extending upwardly therefrom; the central tube has a bottom, annular protrusion (31). A bearing (61) is received in the central tube and mounted on the protrusion. A stator (20) is mounted around the central tube. A rotor (10) includes a shaft (18) having a free end (186) extending through the bearing and defining a notch (184) therein. A locking washer (63) engages into the notch of the shaft to limit movement of the shaft along an axial direction thereof. A balance structure (62) is arranged between the locking washer and the bearing. The balance structure is made of magnet and exerts a downwardly pulling force on the shaft to prevent the rotor from moving upwardly when the rotor is rotated.

Abstract: An exemplary objective holder for engaging with a PCB substrate having an image sensor and several passive components arranged thereon, includes a base and several continuously connected walls extending from the base. The walls enclose a chamber thereamong for receiving the image sensor and define notches therein for receiving the passive components.

Abstract: An exemplary strap for a portable device includes a hollow ring portion, two elastic members, two connecting strings, two blocks, and a strap attachment coupled to the connecting strings. The ring portion includes at least one restraint with a through hole defined therein. The elastic members are fixed within the ring portion. The connecting strings are coupled to the elastic members respectively, pass through the through hole and stretch out of the ring portion. The blocks are positioned respectively at joints of the elastic members and the connecting strings, and restrained within the ring portion by the at least one restraint for preventing the elastic members from being excessively stretched.

Abstract: A cooling fan includes a fan housing (10) having a central tube (11) extending upwardly therefrom, a bearing (20) received in the central tube, a stator (40) mounted around the central tube, a rotor (30) having a shaft (37) extending into the bearing, and a magnetic ring (38) being fixedly mounted to the rotor to rotate with the rotor during operation of the cooling fan. The bearing is made of iron-copper alloy. The magnetic ring is made of hard magnetic material and exerts a magnetic attraction on the bearing, whereby the rotor is pulled downwardly by a magnetic attraction of the bearing on the magnetic ring to lessen the floating problem of the rotor during operation of the cooling fan.

Abstract: A heat dissipation device includes a heat sink having a base with thermal interface material thereon and a protective cap covering the base. The protective cap includes a body shielding the thermal interface material and sidewalls extending from the body and engaging with a periphery of the base of the heat sink. A rotatable portion is rotatable relative to the body of the protective cap. The rotatable portion includes a base-wall being rotatably connected with the body of the protective cap and a plurality of positioning sides extending from the base-wall and engaging lateral sides of a corner of the base of the heat sink.

Abstract: A method for providing a 3D audio work includes providing a one-ear HRTF filter and a related function synthesizer storing a related function therein, and inputting sound signals into the one-ear HRTF filter. The sound signals are converted into one-ear output sound signals which are received by one ear and synthesized to output sound signals for the other ear. A method for providing the related function includes inputting sound signals into HRTF filters of opposite ears and obtaining output sound signals which respectively act as raw signals and target signals. The raw signals are synthesized by a synthesizer to output sound signals which compare with the target signals. A related function registered in the synthesizer is accordingly regulated so as to obtain the related function which satisfies a minimum difference between the output sound signals from the synthesizer and the target signals.

Abstract: An apparatus for assembling a lens module includes a UV light source and a pressing device. The lens modules each having a first component, a second component and UV curable adhesive applied between the first and second components. The UV light source is configured for emitting UV light toward the UV curable adhesive. The pressing device is configured for pressing the first components against the second components. A method for assembling a lens module is also included in the invention.

Abstract: A miniaturized liquid cooling device (200) includes at least a heat absorber (20), at least a heat dissipater (30), a droplet generator (40) driving a working fluid circulating between the at least a heat absorber and the at least a heat dissipater, and a plurality of tubes (50) connecting the at least a heat absorber, the at least a heat dissipater and the droplet generator together to form a loop. The droplet generator includes an array of control electrodes (422) and an array of reference electrodes (442) crossed over the array of control electrodes. A plurality of superposed areas (45) are formed between the control electrodes and the reference electrodes. Voltages are regularly applied on the superposed areas for dividing the working fluid into fluid droplets when the working fluid flows through the droplet generator.

Abstract: An exemplary projector includes a main body, a lens at a front of the main body and a lens barrier module positioned at the front of the main body for covering the lens when the projector is not in use or exposing the lens when the projector is in use. The lens barrier module includes a front bezel defining an opening aligned with the lens, a lens frame secured to a rear side of the front bezel and separated from the front bezel, and a lens cover slidably received between the front bezel and the lens frame. The lens frame defines an aperture aligned with the opening. The lens cover is positioned in a manner to selectively cover or uncover the lens.

Abstract: A thermal module (100) includes a centrifugal blower (20), a heat dissipater (10) and a plurality of heat transfer plates (34). The centrifugal blower includes a casing (22), a stator accommodated in the casing, and a rotor (24) rotatably disposed around the stator. The casing includes a base wall (224) and a sidewall (222) surrounding the base wall. The sidewall defines an air outlet (221) in front of the rotor. The heat dissipater is made of porous material and disposed at the air outlet of the centrifugal blower. The heat transfer plates extend into the heat dissipater so as to increase heat transfer efficiency between a heat generating electronic component and the heat dissipater.

Abstract: A method for mounting a protective film (11) on a screen (13) comprises these steps: providing a protective film and a screen having shape and area approximately equal to that of the protective film; holding the screen; aligning the protective film with the screen; and mounting the protective film on the screen.