Abstract: A heat dissipating apparatus includes a base, a heat sink received in the base, and a retaining cover attached to the base. The retaining cover defines two crossing slots for cooperatively forming at least one flap. Each free portion of flap has a free portion. The free portion of each flap elastically curves towards the heat sink to bias the heat sink towards the base.

Abstract: A carbon nanotube array includes a plurality of carbon nanotubes. Each of the carbon nanotubes has a plurality of line marks formed on each of the carbon nanotubes. The line marks transversely extend across the carbon nanotubes. The line marks of each of the carbon nanotubes are spaced apart from each other.

Abstract: A field emission lamp (30) includes a tube (31) having a closed end and an open end, an encapsulation board (38) mated with the open end, an anode layer (32) formed on an inner surface, a fluorescence layer (33) formed on the anode layer, a cathode down-lead pole (342) located at the encapsulation board, a cathode fixing pole (341) located at the closed end, a cathode filament (34) having a carbon nanotube layer formed on a surface thereof fixed between the cathode down-lead pole and the cathode fixing pole, an anode down-lead ring (321) located at the anode layer near the open end, and an anode down-lead pole (322) located at the encapsulation board and electrically connected with the anode down-lead ring. The field emission lamp has a simple structure, thereby having an enhanced production rate and a reduced cost.

Abstract: A coaxial cable includes a core, an insulating layer, a shielding layer, a sheathing layer. The core includes an amount of carbon nanotubes having at least one conductive coating disposed about the carbon nanotubes. The carbon nanotubes are orderly arranged. The insulating layer is about the core. The shielding layer is about the insulating layer. The sheathing layer is about the shielding layer.

Abstract: A computer front bezel includes a main body, a sliding cover, and two elastic members. The main body defines two substantially opposite sliding grooves. The sliding cover includes two posts slidably received in the sliding grooves of the main body respectively. The two elastic members are connected to the sliding cover and the main body. One end of each of the elastic members is rotatably connected to the main body, and the other end of each of the elastic members is rotatably connected to the sliding cover. The sliding cover is capable of moving between a first, a second and a third state. The first state is that the sliding cover is in a closed position and the two posts are approximately located at first end of the grooves. The second state is that the sliding cover is between the first and third state, and the elastic members exert more force than when the sliding cover is in the first or third state.

Abstract: A method for making transmission electron microscope gird is provided. An array of carbon nanotubes is provided and drawing a carbon nanotube film from the array of carbon nanotubes. A substrate has a plurality of spaced metal girds attached on the substrate. The metal girds are covered with the carbon nanotube film and treating the carbon nanotube film and the metal girds with organic solvent. A transmission electron microscope (TEM) grid is obtained by removing remaining CNT film.

Abstract: A mounting apparatus for mounted an expansion card to a computer case, includes an expansion card mount, and a locking device mounted in the computer. The expansion card mount includes a fixing board, the fixing board including a locking post extending. The computer includes a PCB having a female connector, and a rear plate defining an opening. The expansion card includes a male connector and is fixed to the fixing board. The expansion card together with the expansion card mount can be inserted through the opening of the rear plate in order to make the male connector of the expansion card to be plugged in the female connector of the PCB. At the same time, the locking post of the expansion card mount is locked by the locking device and the expansion card mount is mounted in the opening of the rear plate.

Abstract: A method for forming a patterned array of carbon nanotubes (11) includes the steps of: forming an array of carbon nanotubes on a substrate (10); imprinting the array of carbon nanotubes using a molding device (12) with a predetermined pattern; and removing the molding device, thereby leaving a patterned array of carbon nanotubes (13). The method can effectively reduce or even eliminate any shielding effect between adjacent carbon nanotubes, and is simple to implement. The field emission performance of the patterned array of carbon nanotubes is improved.

Abstract: A field emission device (5) includes cathode electrodes (51), emitters (52) formed on the cathode electrodes, grid electrodes (54) formed over the cathode electrodes at a distance apart from the emitters, and isolated films (55) formed on surfaces of the grid electrodes neighboring the emitters. Preferably, the isolated film has a thickness ranging from 0.1 to 1 microns. The isolated film may be a film made of one or more insulating materials, such as SiO2 and Si3N4. Alternatively, the one or more insulating materials can be selected from a material having a high secondary electron emission coefficient, such as MgO, Al2O3 and ZnO. Additionally, the isolated film can be further formed on a second surface of the grid electrode distal from the emitter.

Abstract: A mounting apparatus includes a bottom plate, a bracket fixed to the bottom plate, and a clamp rotatably mounted to the bottom plate. The bracket includes a first and a second mounting piece. The second mounting piece defines a mounting groove for receiving an edge of a circuit board. The first mounting piece includes a mounting portion, and a fixing piece extending from the mounting portion. The mounting portion includes a post for engaging in a hole of the circuit board. The fixing piece defines a clamping hole. The clamp includes an elastic piece, and a plurality of clips. The elastic piece is configured to move with the clamp to insert through the clamping hole and catch the first mounting piece. The clips are configured to move with the clamp to clip the circuit board to the fixing piece.

Abstract: An annular light guiding unit for portable electronic device comprises a first surface, a second surface located opposite to the first surface, and a wall connecting the first surface and the second surface together. The wall is defined a plurality of first wedged walls therein.

Abstract: A field emission luminescent lamp includes a bulb (40) being vacuum sealed and defining an inner surface; a lamp head mated with the bulb; an electron emitting cathode filament (20) having a conductive wire (10) and a plurality of electron emitters (12) formed thereon, the electron emitting cathode filament is positioned in the bulb; an anode layer (44) formed on the inner surface of the bulb; a phosphor layer (42) formed on the anode layer; an anode electrode (56) located at the lamp head and electrically connected with the anode layer; and a cathode electrode (54) located at the lamp head and electrically connected with the electron emitting cathode filament. The lamp may further include a gate grid (62) and a gate electrode (54). The gate grid defines a number of grid holes and surrounds the cathode filament. The gate grid is electrically connected with the gate electrode.

Abstract: An exemplary cover assembly includes a bezel, and a spring-loaded cover. The bezel includes an opening, a pair of slots, and a pair of pins. The opening is defined in the bezel for accessing a device installed thereto. The slots are defined adjacent opposite ends of the opening respectively. The pins are formed adjacent the slots respectively. The spring-loaded cover covers the opening of the bezel, includes a pair of fixing plates formed thereon slidably received in the slots of the bezel. Each of the fixing plates defines an arcuate groove that slidably receives the corresponding pin of the bezel, where the cover is capable of being pivoted open and shut.

Abstract: A backlight module includes a light guide plate, at least one mixed light apparatus, a first light source and a second light source. The light guide plate includes a body including at least one recess provided at a bottom surface thereof. The mixed light apparatus is disposed partly in or adjacent to the recess. The mixed light apparatus includes a body, a first light reflecting element and a second light reflecting element. The body of the mixed light apparatus has a light emitting surface. Each of the light reflecting elements extends from the light emitting surface. Each of the light reflecting elements has an emanating point and a focal point. The emanating points overlap at the light emitting surface. One of the light sources is disposed at one of the focal points.

Abstract: An isotope-doped carbon nanotube (40) includes at least two kinds of carbon nanotube segments, each kind of carbon nanotube segment having a unique carbon isotope. The at least two kinds of carbon nanotube segments are arranged along a longitudinal direction of the carbon nanotube alternately or non-alternately. The carbon isotope is selected from the group consisting of a carbon-12 isotope, a carbon-13 isotope and a carbon-14 isotope. Three preferred methods employ different single isotope sources to form isotope-doped carbon nanotubes. In a chemical vapor deposition method, different isotope source gases are alternately or non-alternately introduced. In an arc discharge method, a power source is alternately or non-alternately switched between different isotope anodes. In a laser ablation method, a laser is alternately or non-alternately focused on different isotope targets.

Abstract: A power supply securing system includes a securing bracket (30) and a computer case (50). The securing bracket includes a securing portion (371), and is capable of receiving a power supply (10). The computer case includes a first side panel (53) and a second side panel (55) that is parallel to the first side panel. The first side panel includes a blocking member (533) capable of abutting the securing bracket and a securing piece (531) received by the securing bracket. The second side panel includes a tab (555). The securing bracket is pivotably mounted to the computer case about the securing piece and the securing bracket is capable of moving between a first position and a second position. The tab is engaged with the securing portion in the first position and is not engaged with the securing portion in the second position.

Abstract: A circuit board includes a board body of a thickness, and a socket. The board body defines a plurality of through holes therein. The socket includes a first line of short pin groups and a second line of long pin groups engaging the through holes of the board body. The socket defines a slot. The first line of short pin groups and the second line of long pin groups are respectively located on opposite sides of the slot. The first line of short pin groups has a length less than the thickness of the board body. The second line of long pin groups has a length sufficient that the second line of pin groups protrudes the board body.

Abstract: An optical polarizer includes a supporting member and a polarizing film supported by the supporting member. The polarizing film includes at least one layer of a carbon nanotube film, and the carbon nanotubes in a given carbon nanotube film are aligned in the same direction therein. A method for fabricating the optical polarizer includes the steps of: (a) providing a supporting member; (b) providing at least one layer of a carbon nanotube film, the carbon nanotubes in a given carbon nanotube film aligned along the same direction; and (c) adhering a given carbon nanotube film to the supporting member to form the optical polarizer.

Abstract: A carbon nanotube yarn includes a number of carbon nanotube yarn strings bound together, and each of the carbon nanotube yarn strings includes a number of carbon nanotube bundles that are joined end to end by van der Waals attractive force, and each of the carbon nanotube bundles includes a number of carbon nanotubes substantially parallel to each other. A method for making the carbon nanotube yarn includes soaking the at least one carbon nanotube yarn string drawn out from a carbon nanotube array in an organic solvent to shrink it and then collecting it.