Abstract: A lighting device, comprising a housing, a control circuit and a solid-state light emitting unit, is disclosed. The housing includes a receiving space, and the material of the housing is wax. The control circuit is sealed in the receiving space and provides a control signal. The solid-state light emitting unit is sealed in the receiving space and receives the control signal to provide a light.

Abstract: A vehicle headlamp system includes a lamp device and a control device to control the brightness thereof while in operation. The lamp device includes at least a first light emitting diode unit providing a first color temperature, and at least a second light emitting diode unit providing a second color temperature different from the first color temperature. The control device is coupled to the lamp device for changing the brightness ratio of the second LED unit to the first LED unit and controlling the resulting color temperature of the lamp device.

Abstract: An exemplary filter includes N (?2) unity gain amplifiers, each with a pair of differential input terminals and a pair of differential output terminals; a pair of filter differential input terminals; a first pair of variable resistances coupling the pair of filter differential input terminals to the pair of differential input terminals of the first unity gain amplifier; N?1 pairs of variable resistances coupling the pairs of differential output terminals of each of the N unity gain amplifiers, other than the last one, to the pairs of differential input terminals of its downstream neighbor; N?1 pairs of variable capacitances coupling the pairs of differential input terminals of each of the N unity gain amplifiers, other than the last one, to the pairs of differential output terminals of its downstream neighbor; and a variable capacitance coupling the pair of differential input terminals of the last unity gain amplifier to each other.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction. The light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light converging portion includes parallel recesses distributed along the second direction.

Abstract: An exemplary filter includes N (?2) unity gain amplifiers, each with a pair of differential input terminals and a pair of differential output terminals; a pair of filter differential input terminals; a first pair of variable resistances coupling the pair of filter differential input terminals to the pair of differential input terminals of the first unity gain amplifier; N?1 pairs of variable resistances coupling the pairs of differential output terminals of each of the N unity gain amplifiers, other than the last one, to the pairs of differential input terminals of its downstream neighbor; N?1 pairs of variable capacitances coupling the pairs of differential input terminals of each of the N unity gain amplifiers, other than the last one, to the pairs of differential output terminals of its downstream neighbor; and a variable capacitance coupling the pair of differential input terminals of the last unity gain amplifier to each other.

Abstract: An illumination apparatus comprises a housing, a LED base, and a heat sink, the housing having a light emitting surface and a heat dissipation surface opposite to the light emitting surface, the LED base including a circuit board and a plurality of LED chips, the heat dissipation surface adjacent to the circuit board, the light emitting surface of the LED chips toward the light emitting surface of the housing, and the heat sink including a plurality of heat dissipating tubes. The heat dissipating tubes are interlaced on the heat sink and the heights of the heat dissipating tube are different.

Abstract: An illuminating brick includes a block and at least one light-emitting element mounted in the brick. The brick has a top face, a bottom face and a plurality of lateral side surfaces interconnecting the top and bottom faces. The at least one light-emitting element is engaged in and optically coupled to at least one of the bottom face and lateral side surfaces. The lateral side surfaces and the bottom face are configured for reflecting and directing light emitted from the at least a light-emitting element to exit through the top face.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens configured for adjusting the light emitted from the light source module. The optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light diverging portion includes parallel protrusions distributed along the first direction.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens for adjusting the light. The light source module includes a reflecting unit and LEDs. The reflecting unit includes strip-shaped grooves each extending along a first direction. The LEDs are mounted on the reflecting unit in the grooves. The optical lens includes an array of lens units each including a main body, a light diverging portion and a light converging portion. The light diverging portion is for expanding a light field of the LEDs along the first direction. The light converging portion is for compressing the light field along a second direction. The reflecting unit is for further compressing the light field along the second direction.

Abstract: An optical lens (10) includes an array of lens units (11). Each lens unit includes a main body (101), a light diverging portion (112) and a light converging portion (114). The main body includes a light incident surface (110) and a light emitting surface (112) opposite to the light incident surface. The light diverging portion is used to expand a light field along an x-direction. The light converging portion is used to compress a light field along a y-direction. In specific embodiments, the light diverging portion and the light converging portion are respectively formed on the light incident surface and the light emitting surface.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are both formed on one of the light incident surface and the light emitting surface.

Abstract: A phased-array transmitter and receiver that may be effectively implemented on a silicon substrate. The transmitter distributes to front-ends, and the receiver combines signals from front-ends, using a power distribution/combination tree that employs both passive and active elements. By monitoring the power inputs and outputs, a digital control is able to rapidly provide phase and gain correction information to the front-ends. Such a transmitter/receiver includes a plurality of radio frequency (RF) front-ends and a power splitting/combining network that includes active and passive components configured to distribute signals to/from the front-ends.

Abstract: An LED illuminating apparatus includes a lampshade, a cover engaged with the lampshade, a heat dissipation module received in a hollow tube cooperatively formed by the engaged lampshade and cover, a light source engaged on the heat dissipation module, and two connectors secured at opposite ends of the lampshade and the cover. The lampshade defines a plurality of vents therein. The light source faces the cover and light emitted from the light source radiates out of the LED illuminating apparatus through the cover.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens configured for adjusting the light emitted from the light source module. The optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light diverging portion includes parallel protrusions distributed along the first direction.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens for adjusting the light. The light source module includes a reflecting unit and LEDs. The reflecting unit includes strip-shaped grooves each extending along a first direction. The LEDs are mounted on the reflecting unit in the grooves. The optical lens includes an array of lens units each including a main body, a light diverging portion and a light converging portion. The light diverging portion is for expanding a light field of the LEDs along the first direction. The light converging portion is for compressing the light field along a second direction. The reflecting unit is for further compressing the light field along the second direction.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction. The light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light converging portion includes parallel recesses distributed along the second direction.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are both formed on one of the light incident surface and the light emitting surface.

Abstract: An exemplary portable solar power generator includes a hollow light pervious housing, a light guide element, a condensing lens, a solar cell unit, and a connector assembly. The housing has a first refractive index, and sunlight enters the housing by passing through an outer surface thereof. The light guide element is positioned in and attached to the housing, which has a second refractive index larger than the first refractive index. The condensing lens is positioned in the housing, which is configured for converging the light incident thereon. The solar cell unit is positioned in the light pervious housing and located at a side of the condensing lens opposite to the light guide element. The solar cell unit is configured for receiving the light converged by the condensing lens and converting the received sunlight into electrical energy. The connector assembly is electrically coupled to the solar cell unit.

Abstract: An exemplary method for forming phosphor coating includes: providing a substrate; forming a first hydrophilic film on the substrate, the first film being soluble in water; forming a second lipophilic film on the first film, the second film comprised of a phosphor material; submerging the substrate having the first film and the second film formed thereon into water, so that the first film is dissolved in water and the second film is floated on surface of the water; and dipping a light source into the second film to forming a phosphor coating on the light source.