Abstract: A backlight module includes a light guide plate and a flexible, looped strip. The light guide plate includes a light emitting surface for emitting light outwardly therefrom. The strip loop includes a brightness enhancement portion and a light-pervious base portion connected end to end. The strip loop is rotatable relative to the light guide plate such that the brightness enhancement portion and the light-pervious base portion can be selectively aligned with and face towards the light emitting surface. The light guide plate is positioned between the brightness enhancement portion and the light-pervious base portion.

Abstract: An exemplary method for making a mold used for molding lenses includes the following. First, a base is provided. The base has parallel lines marked on a surface thereof. Second, a dispenser is provided. The dispenser dispenses lumps of molding material on selected positions on the surface of the base guided by the lines. Third, a roller is provided. The roller has a peripheral side surface. The peripheral side surface has spaced molding surfaces defined thereat, each molding surface corresponding to a surface of a lens to be formed. The roller is applied above the base, with the molding surfaces press-molding the lumps of molding material, thereby forming molding portions on the base. Thus, a mold including the base and the molding portions formed on the base is obtained.

Abstract: An LED packaging method provides a package that includes a substrate, a LED chip, a carbon naonotube thin film and an adhesive layer. The LED chip includes an anode and a cathode. The carbon naonotube thin film includes at least two electrically conductive areas spaced from each other. The anode and the cathode are electrically connected to the adjacent electrically conductive areas. The adhesive layer is coated on the LED chip and the carbon nanotube thin film.

Abstract: An exemplary solar energy conversion device includes a substrate, a solar energy conversion chip, and a carbon nanotube layer. The substrate defines a through hole. The solar energy conversion chip is positioned on the substrate and covers the through hole. The solar energy conversion chip includes a light incident surface facing away from the substrate and a heat dissipating surface at an opposite side thereof to the light incident surface. The carbon nanotube layer is formed on the heat dissipating surface.

Abstract: A cutting device includes a substrate, a supporting arm mounted on the substrate, a driving component supported by the supporting arm, and a cutting member. The cutting member includes a connection member and a cutting wire. The connection member includes an attachment portion connected to the driving component and a securing portion. The cutting wire is positioned on the securing portion.

Abstract: An exemplary mold includes a base having a first surface and a second surface at two opposite sides thereof, molding cavities defined in the second surface, convex molding surfaces relative to the first surface, and side surfaces. Each side surface is connected between the second surface and a respective convex molding surface. Each side surface and a corresponding convex molding surface cooperatively define a respective molding cavity. Each convex molding surface is totally received in a respective molding cavity, and a maximum distance between each convex molding surface and the first surface is less than a thickness of the base.

Abstract: A street light source assembly includes a number of spaced solid state light emitting elements for emitting light beams, a number of first light diverging members, and a number of second light diverging members. Each of the first diverging members comprises a first concave light incident surface facing the respective one of the solid state light emitting elements. Each of the second diverging members comprises a second concave light incident surface facing the respective one of the first light diverging members. A radius of curvature of each the second concave light incident surface is larger than that of the corresponding first concave light incident surface. The second light diverging members are aligned with the respective first light diverging members and the respective solid state light emitting elements.

Abstract: An exemplary lens module includes a first lens, a second lens and an electrostrictive member. An optical axis of the second lens is aligned with that of the first lens. The electrostrictive member defines a through hole therein for facilitating light passing through, and is sandwiched between the first lens and the second lens. A thickness direction of the electrostrictive member is parallel to optical axes of the first lens and second lens. The electrostrictive member is capable of deforming in the thickness direction thereof when an electric current with an intensity is applied thereto, and capable of returning back to its undeformed state when the electric current is removed, whereby a space between the first and second lenses is adjusted, and at least one of the first lens and second lens is moved.

Abstract: A street illuminating device includes a retaining frame, a light source module, and a heat dissipating module. The light source module includes a printed circuit board retained in the retaining frame, a number of solid state lighting elements, and a light reflecting plate. The printed circuit board has a first surface and an opposite second surface. The solid state lighting elements are arranged on the first surface of the printed circuit board. The light reflecting plate includes a number of through holes with inner reflecting surfaces. The light reflecting plate is disposed on the first surface of the printed circuit board with the solid state lighting elements received in the respective through holes. The heat dissipating module is in thermal contact with the second surface of the printed circuit board.

Abstract: An exemplary mold for molding a lens array includes a first mold core having a first molding surface and a second mold core having a second molding surface. The first and second molding surfaces each include spaced first and third molding portions arranged in an array and second and fourth molding portions, respectively. The first molding portions are interconnected by the second molding portions. The third molding portions are interconnected by the fourth molding portions. When the first mold core and the second mold core are in a ready position, a chamber is defined between the first molding surface and the second molding surface by having a space being maintained between each the first molding portion and the third molding portion and having a space being maintained between each the second molding portion and the fourth molding portion.

Abstract: A backlight module includes a light guide plate and a flexible, looped strip. The light guide plate includes a light emitting surface for emitting light outwardly therefrom. The strip loop includes a brightness enhancement portion and a light-pervious base portion connected end to end. The strip loop is rotatable relative to the light guide plate such that the brightness enhancement portion and the light-pervious base portion can be selectively aligned with and face towards the light emitting surface. The light guide plate is positioned between the brightness enhancement portion and the light-pervious base portion.

Abstract: An exemplary method for making a mold used for molding lenses includes the following. First, a base is provided. The base has parallel lines marked on a surface thereof. Second, a dispenser is provided. The dispenser dispenses lumps of molding material on selected positions on the surface of the base guided by the lines. Third, a roller is provided. The roller has a peripheral side surface. The peripheral side surface has spaced molding surfaces defined thereat, each molding surface corresponding to a surface of a lens to be formed. The roller is applied above the base, with the molding surfaces press-molding the lumps of molding material, thereby forming molding portions on the base. Thus, a mold including the base and the molding portions formed on the base is obtained.

Abstract: A mold separating device includes a base with a driven member and a driving member rotating on the base. The driven member has a first through hole in it, and the base has a second through hole in it. The through holes receive a first mold and a second mold. The first through hole is coaxial to the second through hole. A cavity is defined in an inner wall of the driven member. An ejector is elastically fixed in the cavity and can be expelled from the cavity. A separator is disposed on a front portion of the ejector. A rotatable shaft is fixed in the driving member.

Abstract: An exemplary light emitting diode (LED) streetlight includes an LED light source and a heat dissipating module. The LED light source includes a circuit board and a plurality of LEDs. The circuit board has a first surface and a second surface. The LEDs are disposed on the first surface and electrically connected to the circuit board. The heat dissipating module includes a heat conducting plate, a plurality of heat pipes containing a working liquid and a plurality of fins. The heat conducting plate has a bonding surface and a heat dissipating surface opposite to the bonding surface. Each heat pipe has a heated section thermally connected to the heat dissipating surface and a condensing section spaced from the heat dissipating plate and penetrate into the plurality of fins. The circuit board is fixed on the bonding surface of the heat conducting plate.

Abstract: A mold separating device includes a base with a driven member and a driving member rotating on the base. The driven member has a first through hole in it, and the base has a second through hole in it. The through holes receive a first mold and a second mold. The first through hole is coaxial to the second through hole. A cavity is defined in an inner wall of the driven member. An ejector is elastically fixed in the cavity and can be expelled from the cavity. A separator is disposed on a front portion of the ejector. A rotatable shaft is fixed in the driving member.

Abstract: An exemplary solar cell device includes a solar cell, a solar cell board, a reflection unit, an image acquiring unit, a signal processing and control unit and a drive unit. The solar cell is disposed on the solar cell board and has a receiving face. The reflection unit is opposite to the solar cell board and reflects sunlight to the receiving face of the solar cell. The image acquiring unit acquires image data of the sun. The signal processing and control unit receives and processes the image data to obtain a current position of the sun to generate a corresponding work instruction. The drive unit receives the work instruction and drives the reflection unit to a position in which the reflection unit reflects an optimum amount of sunlight to the solar cell board.

Abstract: An automatic cleaning system for solar panels has a time controller, a detection device, a perfusion device, a driving device and a cleaning device. Based on predetermined time values, execution signals are sent to the perfusion device, the driving device and the detection device to implement prompt assessment of the need for cleaning and cleaning, if warranted. Also provided is an automatic cleaning method using the system.

Abstract: A cutting device includes a substrate, a supporting arm mounted on the substrate, a driving component supported by the supporting arm, and a cutting member. The cutting member includes a connection member and a cutting wire. The connection member includes an attachment portion connected to the driving component and a securing portion. The cutting wire is positioned on the securing portion.

Abstract: A solar cell device includes a solar cell panel having an outer surface and a cleaning system. The cleaning system includes a cleaning component configured for sputtering a cleaning fluid to clean the outer surface, and a controller. The controller is electrically connected to the cleaning component and is configured for controlling the cleaning component.

Abstract: A street illuminating device includes a retaining frame, a light source module, and a heat dissipating module. The light source module includes a printed circuit board retained in the retaining frame, a number of solid state lighting elements, and a light reflecting plate. The printed circuit board has a first surface and an opposite second surface. The solid state lighting elements are arranged on the first surface of the printed circuit board. The light reflecting plate includes a number of through holes with inner reflecting surfaces. The light reflecting plate is disposed on the first surface of the printed circuit board with the solid state lighting elements received in the respective through holes. The heat dissipating module is in thermal contact with the second surface of the printed circuit board.