Abstract:
An apparatus for manufacturing carbon nanotubes includes: a reaction chamber having an inlet at a bottom and an opposite outlet at a top thereof, and a substrate region configured for accommodating a substrate for growing carbon nanotubes thereon; an electric field generating device configured for generating an electric field around the substrate region, the electric field being substantially perpendicular to the substrate; and a magnetic field generating device configured for generating a magnetic field around the substrate region, the magnetic field being substantially perpendicular to the substrate.
Abstract:
An exemplary apparatus for washing one or more optical elements includes an upper portion (10) and a lower portion (20). The upper portion includes a plurality of upper washing holes (14) defined therein. The lower portion cooperates with the upper portion to form a washing chamber (30). The lower portion includes a plurality of lower washing holes (24) defined therein. The washing chamber is configured for holding the optical elements.
Abstract:
An optical element includes a substrate having a first surface and an opposite second surface; a first film stack formed on the first surface, having a plurality of first film layers with predetermined thickness or layer numbers; and a second film stack formed on the second surface, having a plurality of second film layers with same thickness or layer numbers to the first film layers. A method for manufacturing the optical element is also provided.
Abstract:
An induction charger assembly (3) is provided for an electronic device (4). The induction charger assembly includes an induction coil (311), a charger connector (35), and a magnetic element (313). The induction coil is configured to be hollow column in shape, and the induction coil has a first end and a second end. The charger connector electrically connects with the first and second ends of the induction coil. The charger connector is configured for electrically connecting with the electronic device to be charged. The magnetic element is received in the induction coil. The permanent magnet is movable in the induction coil for generating an induction current through the induction coil.
Abstract:
A rolling machine includes a first clipping component, a second clipping component, a lifting component, and a holding assembly. The first clipping component has a first surface and a second surface opposite to the first surface. The second clipping component has a third surface configured to contact the first surface and a fourth surface opposite to the third surface. The lifting component is connected to the first clipping component and configured to drive the first clipping component to move back and forth. The holding assembly has a first and second holders configured to be symmetrically positioned on both sides of the first clipping component.
Abstract:
An apparatus for manufacturing carbon nanotubes is provided. The apparatus includes: a reaction chamber having an inlet and a outlet; a heater for elevating an interior temperature of the reaction chamber; and a gas guiding member coupled to the inlet and configured for introducing a carbon-containing gas into the reaction chamber, the gas guiding member including a gas-exiting portion arranged in the reaction chamber, the gas-exiting portion having a cavity defined therein and a flat perforated top wall, the perforated top wall being configured for supporting a substrate thereon and defining a route allowing the introduced carbon-containing gas to flow in a direction substantially perpendicular to a main plane of the substrate.
Abstract:
An optical filter for screening out infrared and ultraviolet light includes a transparent substrate and a film stack formed on the substrate. The film stack includes a number of high refractive index layers and a number of low refractive index layers alternately stacked one on another. The film stack is represented as follows: (3.5H3.5L)7(2.5H2.5L)7(HL)6(0.76H0.76L)6, wherein, H represents a high refractive index layer having a base optical thickness equal to one fourth of a reference wavelength associated with the optical filter, L represents a low refractive index layer having a base optical thickness equal to one fourth of a reference wavelength associated with the optical filter, expressions enclosed in each parenthesis represent filter cavities, and superscripts represents the number of repetitions of the expression enclosed in that parenthesis.
Abstract:
An apparatus for synthesizing nanotubes is provided. The apparatus includes a reactor, a first electrode and a second electrode, and an actuator. The reactor is configured for receiving a catalyst used for growing nanotubes. The first electrode and the second electrode are disposed in the reactor and configured for generating an electric field therebetween. The second electrode is spaced apart from the first electrode and movable relative to the first electrode along a direction perpendicular to another direction oriented from the first electrode to the second electrode. The actuator is configured for adjusting a direction of the electric field generated by the first electrode and the second electrode.
Abstract:
An exemplary film coating device includes a film coating holder and a film coating cover. The film coating holder includes a plurality of through holes defined therein for receiving workpieces to be coated. The film coating cover includes a first cover body and a second cover body. The first cover body includes a frame and a plurality of arms. A plurality of shelter pieces is set on the inner side of each arm. Each shelter piece is spatially arranged corresponding to one of the plurality of through holes. The second cover body is configured for covering the first cover body. The height of the second cover body is no less than that of the first cover body.
Abstract:
A method for manufacturing carbon nanotubes with a desired length includes the steps of: providing an array of carbon nanotubes; placing a mask having at least an opening defined therein on the array of carbon nanotubes, with at least one portion of the array of carbon nanotubes being at least partially exposed through a corresponding opening of the mask; forming a protective film on at least one exposed portion of the array of carbon nanotubes; removing the mask from the array of the carbon nanotubes, with the carbon nanotubes being compartmentalized into at least a first portion covered by the protective film and at least one uncovered second portion; breaking/separating the first portion from the second portion of the array of the carbon nanotubes using a chemical method, thereby obtaining at least a carbon nanotube segment with a protective film covered thereon; and removing the protective film from the carbon nanotube segment.