摘要:
A white light emitting diode comprises a light emitting diode chip for emitting a blue light, a first wavelength conversion layer and a second wavelength conversion layer. The light emitting diode chip comprises a first lighting area and a second lighting area through which at least two currents flow, respectively. The first wavelength conversion layer is coated on the first lighting area and generates a first conversion light upon excitation by the blue light. A warm white light is generated by mixing the blue light and the first conversion light. The second wavelength conversion layer is coated on the second lighting area and generates a second conversion light upon excitation by the blue light. A cold white light is generated by mixing the blue light and the second conversion light. The amount of the currents can be controlled to modify the luminescence intensity of each light area, thus adjusting the color temperature of the white LED.
摘要:
A heat dissipating device includes a heat dissipater and a turbine ventilator. The heat dissipater includes a plurality of heat dissipating fins arranged at interval, wherein a heat dissipating passage is defined between two adjacent heat dissipating fins. The turbine ventilator is connected to one side of the heat dissipater, and the turbine ventilator has a central axis and the axial line of the central axis is in parallel to the heat dissipating passage. An LED lighting module can be attached to one side of the heat dissipater of the heat dissipating device. Therefore, the heat dissipating device dissipates heat of the LED lighting module without consuming additional electrical power.
摘要:
A particle-moving type orientation sensor including a housing, at least one light emitter, two light receivers, and a plurality of particles. The housing has an accommodating space having four zones, which are circularly arranged. A first opening is formed on the housing and connecting to a first zone. Two second openings are formed on the housing and respectively connecting to a second zone and a fourth zone. The light emitter emits light into the accommodating space through the first opening. The light receivers respectively receive light from the accommodating space through the second openings. The particles are arranged in the accommodating space. While the particle-moving type orientation sensor is tilting, the light emitter is partially blocked by the particles, and one of the light receivers is partially blocked by the particles, the light receivers respectively receive light with predetermined intensities and output electric signals with predetermined strengths.
摘要:
An integrated optical fiber connector component includes a light transmitting-side circuit unit, a signal input pin, a light emitting unit, a light receiving-side circuit unit, a signal output pin, a light detecting unit, an integrated positive power pin, and an integrated negative power pin. The integrated positive power pin and the integrated negative power pin are electrically connected to the light transmitting-side circuit unit and the light receiving-side circuit unit. The light transmitting-side circuit unit, the light receiving-side circuit unit and the light detecting unit are integrated in an integrated circuit (IC). The light transmitting-side circuit unit, the light receiving-side circuit unit, the light emitting unit, and the light detecting unit are assembled in a package. The integrated optical fiber connector component of the present invention has reduced space when it is installed on a notebook computer, and has reduced manufacturing complexity and cost.
摘要:
A detecting method is provided for detecting motion direction of a portable electronic device. The portable electronic device senses a plurality of continuous images in time sequence via an image sense unit. The differences among the plurality of images are analyzed by a process unit. Consequently the process unit determines the motion direction of the portable electronic device, generates motion data based on the differences, and sends a control signal corresponding to the motion direction of the device and the motion data.
摘要:
A ball-rolling type orientation sensor includes a housing, a light emitter, two light receivers, and a rolling ball. The housing has a ring-shaped tunnel and a first opening connecting to the tunnel and two second openings respectively located on two sides of the first opening. The light emitter is arranged at the first opening and emitting light into the tunnel through the first opening. The light receivers are respectively arranged at the second openings and receiving light from the tunnel through the second openings. The rolling ball is arranged in the tunnel, whereby while the ball-rolling type orientation sensor is tilting, the rolling ball rolls toward the direction of gravity force, a portion of light emitted from the light emitter is reflected to one of the light receivers by the rolling ball, the light receivers respectively receive light with predetermined intensities and correspondingly output electric signals with predetermined strengths.
摘要:
An LED lighting device includes a supporting stage, a light source module, a heat dissipating module and a sleeve. The light source module is arranged on one side of the supporting stage and includes a plurality of white LEDs, a plurality of red LEDs, and a plurality of green LEDs. The heat dissipating module includes a plurality of heat-dissipating fins and a plurality of heat pipes passing through the heat-dissipating fins. The sleeve encloses the heat dissipating module. The LED lighting device mixes the lights from those LEDs to provide a light source with lower color temperature and higher color rendering index.
摘要:
A lamp base having a heat sink is connected to a bulb having two electrodes. The lamp base includes a heat sink, a first electrically conductive piece, a second electrically conductive piece, and leads. The heat sink comprises a heat-dissipating base formed with a trough for accommodating the bulb therein. The first electrically conductive piece is fixed in the trough and is electrically connected to an electrode of the bulb. The second electrically conductive piece is fixed in the trough and is electrically connected to the other electrode of the bulb. The second electrically conductive piece is electrically insulated from the first electrically conductive piece. The leads are electrically connected to the first electrically conductive piece and the second electrically conductive piece respectively. With the heat sink dissipating the heat generated by the bulb, the lamp base has extended lifetime.
摘要:
A light device adapted to light and power cogeneration projects at least one illumination light beam and divergent light beam by a specified power supplied from an external power source. The light device comprises an optical-to-electrical energy transformation unit and a power storage unit. The optical-to-electrical energy transformation unit comprises a light-concentration assembly and an optical-to-electrical energy transformation interface for concentrating the divergent light beam to at least one concentrated light beam and sensing the concentrated light beam, so as to generate an inductive power transmitting to the power storage unit, where collects the inductive power to store an emergent power. When the external power source interrupts supplying the specified power, the power storage unit discharges the emergent power to drive the lighting assembly to go on projecting the illumination light beam and the divergent light beam.