Abstract: A portable electronic device includes a main body and a solar cell module. The main body has electric components. The solar cell module is mountedin the main body. The solar cell module is configured for supplying electric energy to the electric components of the main body. The solar cell module includes a solar cell, a cell cover and a light diverging lens. The solar cell has a light-absorbing surface. The cell cover faces the light-absorbing surface. The cell cover defines a through hole therein. The light diverging lens is engaged in the through hole. The light diverging lens faces toward the light-absorbing surface and is configured for diverging light transmitted therethrough.

Abstract: A solar cell includes a plurality of solar panels arranged in parallel, and a light-reflective member adjacent to the plurality of solar panels. Each solar panel is spaced a predetermined distance from another, and the light-reflective member is configured for reflecting sunlight to the solar panels.

Abstract: A solar cell assembly includes a first solar cell panel, a second solar cell panel, and at least one light guide assembly. The first solar cell panel has at least one first through hole defined therein. The second solar cell panel faces and is spaced from the first solar cell panel. The at least one light guide assembly comprises a light diverging lens engaged in the first through hole of the first solar cell panel, and a light guide body aligned with the light diverging lens and located between the first and second solar cell panels. The light diverging lens is configured for diverging sunlight incident thereupon and forming diverged light. The light guide body has an incident surface for receiving the diverged light, and emitting surfaces for emitting light to the second solar cell panel.

Abstract: A solar cell assembly includes a first solar cell panel, a second solar cell panel, and at least one first light diverging lens. The first solar cell panel has at least one first through hole defined therein. The at least one first light diverging lens is embedded in the at least one first through hole of the first solar cell panel. The at least one first light diverging lens is configured for diverging sunlight incident thereupon and forming a first diverged light output. The second solar cell panel is spaced apart from the first solar cell panel and facing towards the at least one first light diverging lens. The second solar cell panel is configured for receiving and converting the first diverged light output into electric power.

Abstract: An exemplary dust removing apparatus applicable for removing dust or dirt from a surface of an optical lens is provided. The dust removing apparatus includes an ultrasonic oscillation device, at least a dust removing device, and a tray. The ultrasonic oscillation device is configured for causing an ultrasonic vibration of the optical lens so as to weaken an adhesive force between the optical lens and the dust on the surface thereof. The dust removing device is configured for removing the dust from the surface of the optical lens. The tray is disposed on the ultrasonic oscillation device and located between the ultrasonic oscillation device and the dust removing device. The tray is configured for supporting the optical lens. A dust removing method is also provided.

Abstract: A drying apparatus (100) for drying a plastic element with water membrane formed thereon includes a tray (10), a sonicator (20) and a dryer (30). The tray (10) is configured for holding the plastic element (40) to be treated. The sonicator (20) is attached to the tray (10) for rupturing the water membrane formed on the plastic element (40). The dryer (30) is disposed corresponding to the tray (10) for providing hot air for drying the plastic element (40).

Abstract: A device for measuring adhesion strength between a first optical element and a second optical element includes a force gauge, a first magnet, and a second magnet. The second magnet is fixed to the force gauge. The first magnet and the second magnet are configured for magnetically attaching to opposite sides of the first optical element. An attractive force between the first magnet and the second magnet is greater than the adhesion strength between the first optical element and the second optical element.

Abstract: A variable aperture includes a chamber, a transparent and electrically conductive aqueous solution, an opaque and electrically non-conductive oily solution, a transparent insulative and hydrophobic layer, a first electrode and a second electrode assembly. The chamber includes a first transparent portion and a second transparent portion located on opposite sides. The aqueous solution and the oily solution are contained in the chamber thus forming a contact interface therebetween. The transparent insulative and hydrophobic layer is arranged between the oily solution and the second transparent portion. The first electrode is arranged electrically contacting the aqueous solution. The second electrode assembly is arranged adjacent to the second transparent portion, and includes a transparent circular electrode and a plurality of concentric transparent annular electrode surrounding the transparent circular electrode, the circular electrode being insulated from the annular electrode.

Abstract: An exemplary method for manufacturing a thermal interface material includes the steps of: providing a first substrate having a first surface and an opposite second substrate having an opposite second surface spaced apart a predetermined distance; forming a number of carbon nanotubes from one of the first the second surfaces; forming a composite material by filling interstices between the carbon nanotubes with a liquid state base material; curing the liquid state base material filled in the interstices between the carbon nanotubes; and removing the first and the second substrates from the composite material.

Abstract: A variable aperture includes a chamber, a transparent and electrically conductive aqueous solution, an opaque and electrically non-conductive oily solution, a transparent insulative and hydrophobic layer, a first electrode and a second electrode assembly. The chamber includes a first transparent portion and a second transparent portion located on opposite sides. The aqueous solution and the oily solution are contained in the chamber thus forming a contact interface therebetween. The transparent insulative and hydrophobic layer is arranged between the oily solution and the second transparent portion. The first electrode is arranged electrically contacting the aqueous solution. The second electrode assembly is arranged adjacent to the second transparent portion, and includes a transparent circular electrode and a plurality of concentric transparent annular electrode surrounding the transparent circular electrode, the circular electrode being insulated from the annular electrode.

Abstract: An exemplary shutter includes a chamber; a transparent, hydrophobic dielectric layer; a light-tight (i.e., non-transparent), insulating oily layer; a transparent conductive aqueous layer; and a pair of electrodes. The chamber has a pair of opposing transparent plates. The dielectric layer, the oily layer, and the aqueous layer are accommodated in the chamber, in that order, from one of the pair of transparent plates to the other. The pair of the electrodes is configured for generating an electric field to induce an electrowetting effect in the aqueous layer.

Abstract: A method for determining a location of IR-cut filter film on a substrate, the filter film and the substrate cooperatively functioning as an IR-cut filter, includes the steps of: providing an infrared laser device, an IR-cut filter and an infrared laser sensor; emitting a laser from the IR laser device to a surface of the IR-cut filter in a manner such that the laser beam is obliquely incident on an edge portion of the IR-cut filter; and determining the location of the filter film on the substrate of the IR-cut filter in such a way that, if the intensity of the laser beam received by the infrared sensor is equal to or close to zero, the location of the filter film is on a surface of the substrate facing towards the infrared laser device; if the intensity of the laser beam received by the infrared sensor is the same as or close to an intensity of the laser beam emitted from the infrared laser device, the location of the filter film is on a surface of the substrate facing away from the infrared sensor.

Abstract: An exemplary shutter includes an upper plate, a lower plate facing the upper plate, a side plate, a magnetic fluid, and a magnetic field generator. The side plate is connected between the upper plate and the lower plate. The upper plate, the lower plate, and the side plate cooperatively define a chamber. The magnetic fluid is accommodated in the chamber and includes a transparent solution, a surfactant, and a plurality of black magnetic particles dispersed in the solution and surrounded by the surfactant. Each of the particles is surrounded by a surfactant. The magnetic field generator is positioned outside and adjacent to the chamber, and is for generating a magnetic field in the chamber.

Abstract: A miniature motor includes an actuator and a transmission assembly. The actuator includes a chamber, an electrically conductive aqueous layer, a dielectric oily layer and two electrodes. The aqueous and oily layers are accommodated in the chamber. The oily layer contacts with the aqueous layer thereby forming a contact interface therebetween. The two electrodes are configured for producing an electric field to induce the aqueous layer to produce an electrowetting effect. The transmission assembly includes a thin film disposed at the interface and at least one transmission member. The thin film defines a first surface and a second surface, respectively, facing towards the aqueous and oily layers. A hydrophilic coating and a hydrophobic coating are, respectively, formed on the first and second surfaces. Each transmission member has a first end connected to one of the hydrophilic and hydrophobic coatings and a second end extending out of the chamber.

Abstract: A device for measuring adhesion strength between a first optical element and a second optical element includes a force gauge, a first magnet, and a second magnet. The second magnet is fixed to the force gauge. The first magnet and the second magnet are configured for magnetically attaching to opposite sides of the first optical element. An attractive force between the first magnet and the second magnet is greater than the adhesion strength between the first optical element and the second optical element.

Abstract: An exemplary apparatus for producing carbon nanotubes includes a reaction chamber, a first electrode, a second electrode, and a driving element. The first electrode and the second electrode are arranged inside the reaction chamber and configured for creating an electric field in the reaction chamber. The first electrode is configured for holding a substrate for growing carbon nanotubes thereon. The second electrode is arranged facing the first electrode. The driving element is configured for driving one of the first electrode and the second electrode to move along a direction parallel to a growth direction of the carbon nanotubes.

Abstract: A method for determining a location of IR-cut filter film on a substrate, the filter film and the substrate cooperatively functioning as an IR-cut filter, includes the steps of: providing an infrared laser device, an IR-cut filter and an infrared laser sensor; emitting a laser from the IR laser device to a surface of the IR-cut filter in a manner such that the laser beam is obliquely incident on an edge portion of the IR-cut filter; and determining the location of the filter film on the substrate of the IR-cut filter in such a way that, if the intensity of the laser beam received by the infrared sensor is equal to or close to zero, the location of the filter film is on a surface of the substrate facing towards the infrared laser device; if the intensity of the laser beam received by the infrared sensor is the same as or close to an intensity of the laser beam emitted from the infrared laser device, the location of the filter film is on a surface of the substrate facing away from the infrared sensor.

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.

Abstract: A method for removing a diamond-like carbon film on a substrate is provided. The diamond-like carbon film includes an amorphous carbon layer and an amorphous hydrogenated carbon layer formed on the amorphous hydrogen-free carbon layer. The method includes a step of electrolyzing the diamond-like carbon film in an acid solution. Compared with grinding, the electrolyzing process has advantages of low cost being cheaper, more convenient and results in a smoother surface.

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.