Abstract: A mosquito trap device includes a housing having an air inlet and an air outlet. A wind channel is formed between the air inlet and the air outlet. An ultraviolet light module is mounted in the housing and is located adjacent to the air inlet. A wind module is mounted in the wind channel of the housing. A mosquito detaining device includes a tube and a net. The tube is mounted in the wind channel and is coupled to the wind module. The net is mounted to and covers an end of the tube adjacent to the air inlet. A controller is electrically connected to the ultraviolet light module and the wind module. The controller is configured to output a pulse width modulation signal to the ultraviolet light module. The pulse width modulation signal has a frequency of 25-512 Hz.

Abstract: A bug zapper includes a body, a fan and a light source. The body has a compartment, an opening, a channel arranged between the compartment and the opening, and a coupling portion arranged between the compartment and the channel. The channel is formed by an enclosed reflection wall and gradually expands from the coupling portion towards the opening. The fan is coupled with the coupling portion. The light source is mounted on a location of the body adjacent to the fan and irradiates light in the channel. As such, the efficiency in attracting the mosquitoes is outstanding, and the negative effect to the human is reduced.

Abstract: By using the power generated by an expander by an expansion of material gas, the outlet pressure of a compressor is increased, and a requirement on the cooling capacity of a cooler is reduced.

Abstract: A bug zapper including a body, a fan and a light source is disclosed. The body has a compartment, an opening, a channel arranged between the compartment and the opening, and a coupling portion arranged between the compartment and the channel. The channel is formed by an enclosed reflection wall and gradually expands from the coupling portion towards the opening. The fan is coupled with the coupling portion. The light source is mounted on a location of the body adjacent to the fan and irradiates light in the channel. As such, the efficiency in attracting the mosquitoes is outstanding and the negative effect to the human is reduced.

Abstract: A method for solar power energy management with intelligent selection of operating modes classifies the power energy of a solar cell and an reserved power of a rechargeable battery into multiple power level ranges, and determine to supply power to a load in accordance with various combinations of the power level ranges of the solar cell and the rechargeable battery to avoid energy waste. When the solar cell is in a “sufficient” power level range, the power energy of the solar cell is simultaneously supplied to the load and stored in the rechargeable battery. When the solar cell is in an “insufficient” power level range, all the power energy of the solar cell is selectively supplied to the load or charged to the rechargeable battery. When being in a “poor” power level range, the power energy of the solar cell can still be charged to the rechargeable battery.

Abstract: A classified solar charging method defines four magnitude classes of charging current in accordance with a combination selected from four magnitude classes of power production of a solar cell and four magnitude classes of capacity of each rechargeable battery of a rechargeable battery pack. In addition to the optimal charging current, the method simultaneously takes an operating temperature of the rechargeable battery into account upon using the solar cell to store energy in the rechargeable battery. Accordingly, the present invention can selectively charge overall, partial or single rechargeable battery based on the power production of the solar cell and the capacity of the rechargeable battery to enhance a charging efficiency and reduce a charging time.

Abstract: A method for solar power energy management with intelligent selection of operating modes classifies the power energy of a solar cell and an reserved power of a rechargeable battery into multiple power level ranges, and determine to supply power to a load in accordance with various combinations of the power level ranges of the solar cell and the rechargeable battery to avoid energy waste. When the solar cell is in a “sufficient” power level range, the power energy of the solar cell is simultaneously supplied to the load and stored in the rechargeable battery. When the solar cell is in an “insufficient” power level range, all the power energy of the solar cell is selectively supplied to the load or charged to the rechargeable battery. When being in a “poor” power level range, the power energy of the solar cell can still be charged to the rechargeable battery.

Abstract: A classified solar charging method defines four magnitude classes of charging current in accordance with a combination selected from four magnitude classes of power production of a solar cell and four magnitude classes of capacity of each rechargeable battery of a rechargeable battery pack. In addition to the optimal charging current, the method simultaneously takes an operating temperature of the rechargeable battery into account upon using the solar cell to store energy in the rechargeable battery. Accordingly, the present invention can selectively charge overall, partial or single rechargeable battery based on the power production of the solar cell and the capacity of the rechargeable battery to enhance a charging efficiency and reduce a charging time.

Abstract: A light-emitting device and an electronic device using the same are provided. The light-emitting device includes a light-guiding plate, a circuit board, at lease one light source unit and a reflective layer. The circuit board is disposed under the light-guiding plate. The reflective layer is disposed above the light-guiding plate. The light-guiding plate has at lease one hole. The light source unit is disposed on the circuit board and within the hole. The reflective layer is disposed above the hole. The light-emitting device is disposed on one side of a part, such as a keypad, of the electronic device for providing light to the keypad.

Abstract: A light-emitting device and an electronic device using the same are provided. The light-emitting device includes a light-guiding plate, a circuit board, at least one light source unit and a reflective layer. The circuit board is disposed under the light-guiding plate. The reflective layer is disposed above the light-guiding plate. The light-guiding plate has at least one hole. The light source unit is disposed on the circuit board and within the hole. The reflective layer is disposed above the hole. The light-emitting device is disposed on one side of a part, such as a keypad, of the electronic device for providing light to the keypad.

Abstract: A light guide device and a light guide plate using the same are provided. The light guide device has a first surface, a second surface, and a bottom surface. The first surface, the second surface, and the bottom surface define the internal part of the light guide device. The bottom surface has a cavity. When a light source in the cavity generates light, the light from the internal part of the light guide device is emitted via the first surface.

Abstract: A lighting module adapted for use in a keypad device includes a circuit substrate board, a transparent light guide plate stacked on the circuit substrate board, and at least one light emitting diode embedded in the light guide plate and connected electrically to the circuit substrate board. By having the light emitting diode embedded in the light guide plate, the overall thickness of the lighting module can be reduced to permit miniaturization.

Abstract: An inner scattering billboard includes a light directing body, an advertising membrane and a light source. The light directing body contains a plurality of light directing particles inside to diffuse and direct light. Thus light rays emitted from the light source into the light directing body are scattered to allow the light directing body to become a planar light source of even luminosity. The advertising membrane has an advertising symbol located on the surface to be evenly illuminated. The billboard can be made thinner. An LED may be adopted as the light source to save electric power and reduce user's operation cost.

Abstract: The present invention discloses an optical-film traffic sign, which comprises: a light-guide element, an optical film and at least one light source. A plurality of diffusion dots is printed on the light-guide element. The light from the light source is repeatedly scattered by the diffusion dots. Thereby, the light-guide element becomes a highly uniform planar light source. The optical film having a traffic sign is applied onto the surface of the light-guide element to form a slim and uniformly-luminous traffic sign. The present invention may adopt LED as the light source and thus has the advantage of energy saving.

Abstract: A light-emitting device and an electronic device using the same are provided. The light-emitting device includes a light-guiding plate, a circuit board, at lease one light source unit and a reflective layer. The circuit board is disposed under the light-guiding plate. The reflective layer is disposed above the light-guiding plate. The light-guiding plate has at lease one hole. The light source unit is disposed on the circuit board and within the hole. The reflective layer is disposed above the hole. The light-emitting device is disposed on one side of a part, such as a keypad, of the electronic device for providing light to the keypad.

Abstract: A lighting module adapted for use in a keypad device includes a circuit substrate board, a transparent light guide plate stacked on the circuit substrate board, and at least one light emitting diode embedded in the light guide plate and connected electrically to the circuit substrate board. By having the light emitting diode embedded in the light guide plate, the overall thickness of the lighting module can be reduced to permit miniaturization.

Abstract: A thin light-guiding structure for guiding light to the keypad of an electronic device is provided. The thin light-guiding structure comprises a film and a plurality of light-diffusing elements. The film is located on one side of the keypad. The film has a plurality of selectable predetermined regions that the light-diffusing elements are disposed. The keypad and the light-diffusing elements are respectively disposed above and under the film, such that when the light of the light source enters the film, the light of the light source is projected to the keypad due to the light diffusion caused by the light-diffusing elements.

Abstract: A light guide plate is disclosed by the present invention. The light guide plate includes a first main body having a light-exiting surface and a second main body fixed to the first main body. The second main body has a light-entering surface, and the second main body is utilized to guide light received by the light-entering surface to the first main body, wherein there is a first recessed region positioned in one side of a joint portion between the first main body and the second main body, and the first recessed region is positioned at an edge of the light-exiting surface.

Abstract: A light device with a color mixing effect, includes a first light bar, a second light bar, and a holding structure. The first light bar emits a first color light with a first color, and the second light bar emits a second color light with a second color different from the first color. The holding structure, having a light-mixing area, includes a first positioning portion and a second positioning portion. The first positioning portion is for positioning the first light bar, the second positioning portion is for positioning the second light bar, and the first light bar is parallel to and obliquely faces the second light bar, such that the first color light and the second color light are respectively emitted into the light-mixing area to form a third color light with a third color different from the first color and the second color.

Abstract: A light guide device and a light guide plate using the same are provided. The light guide device has a first surface, a second surface, and a bottom surface. The first surface, the second surface, and the bottom surface define the internal part of the light guide device. The bottom surface has a cavity. When a light source in the cavity generates light, the light from the internal part of the light guide device is emitted via the first surface.