Abstract:
A photography and projection apparatus including a light emitting and sensing module and a projection lens is provided. The light emitting and sensing module has a light emitting and sensing area, and includes a light emitting unit array and a light sensing unit array. The light emitting unit array includes a plurality of light emitting units arranged in an array. The light emitting units are distributed in the light emitting and sensing area. The light emitting unit array is adapted to provide an image beam. The light sensing unit array includes a plurality of light sensing units arranged in an array. The light sensing units are distributed in the light emitting and sensing area. The projection lens is disposed on a transmission path of the image beam. A light emitting and sensing module is also provided.
Abstract:
A light-emitting system includes a first power input terminal and a second power input terminal and five rectifying devices coupled between the two power input terminals. The first and second power input terminals may receive an external power input. The first rectifying device is coupled between the first power input terminal and a first intermediate contact. The second rectifying device is coupled between the second power input terminal and the first intermediate contact. The third rectifying device is coupled between a second intermediate contact and the second power input terminal. The fourth rectifying device is coupled between the second intermediate contact and the first power input terminal. The fifth rectifying device is coupled between the first intermediate contact and the second intermediate contact. The fifth rectifying device is configured to allow a current flow from the first intermediate contact to the second intermediate contact and to emit light in response to the current flow. One or more of the first, second, third, and fourth rectifying devices may include one or more light-emitting diodes, one or more Schottky diode(s), or a combination of both types of diodes.
Abstract:
A charge apparatus including a natural energy conversion module, an energy converter, an energy transmitter, and an energy receiver is provided. The natural energy conversion module receives a natural energy and converts the natural energy into a first electric energy. The energy converter is electrically connected to the natural energy conversion module and converts the first electric energy into a wireless energy. The energy transmitter is electrically connected to the energy converter and transmits the wireless energy in a wireless manner. The energy receiver receives the wireless energy in a wireless manner and converts the wireless energy into a second electric energy.
Abstract:
A photography and projection apparatus including a light emitting and sensing module and a projection lens is provided. The light emitting and sensing module has a light emitting and sensing area, and includes a light emitting unit array and a light sensing unit array. The light emitting unit array includes a plurality of light emitting units arranged in an array. The light emitting units are distributed in the light emitting and sensing area. The light emitting unit array is adapted to provide an image beam. The light sensing unit array includes a plurality of light sensing units arranged in an array. The light sensing units are distributed in the light emitting and sensing area. The projection lens is disposed on a transmission path of the image beam. A light emitting and sensing module is also provided.
Abstract:
A light emitting device includes a first power node and a second power node configured to receive single-phase voltage provided from an AC voltage source, a first light emitting unit including at least one light emitting diode (LED), wherein a first end of the first light emitting unit is coupled to the first power node, a second light emitting unit including at least one LED, wherein a first end of the second light emitting unit is coupled to the first power node, and a second end of the second light emitting unit couples to the second power node, and a first phase modulator coupled between a second end of the first light emitting unit and the second power node and configured to change the phase of the single-phase voltage provided to the first light emitting unit.
Abstract:
A light-emitting system includes a first and second power input terminals for receiving an external power input to the light-emitting system; a first light-emitting-diode string comprising at least three light-emitting diodes placed sequentially in a first direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the first direction; and a second light-emitting-diode string comprising at least three light-emitting diodes placed sequentially in a second direction to allow a current flow through the at least three light-emitting diodes of the second light-emitting-diode string generally in the second direction, The first and second light-emitting-diode strings may be serially coupled, and the first direction may be substantially vertical to the second direction.
Abstract:
A lamp apparatus include a lamp body, at least an alternating current light-emitting diode and a plug. The alternating current light-emitting diode is disposed on a lamp body. The plug is electrically connected to the alternating current light-emitting diode. In lamp apparatuses utilizing AC LED, heat generated thereby is almost concentrated on chips. Compared with conventional lamp apparatuses utilizing DC LEDs, heat generated thereby is distributed on chips and outer rectifier. In lamp apparatuses utilizing AC LEDs, heat generated thereby is almost concentrated on chips because AC LEDs operate directly with AC electric power, omitting a rectifier and preventing power loss during operation of power rectification. Therefore, the heat accumulated on the chips of the AC LEDs is enough to be used to evaporate essential oil. In another embodiment, the invention utilizes low-resistance pure water surrounding the AC LED to dissipate its heat.
Abstract:
A light-emitting device comprises a substrate, at least one light-emitting structure configured to emit light beams and positioned on the substrate, and a ring-shaped photonic crystal structure positioned in the light-emitting structure. The ring-shaped photonic crystal structure includes a plurality of pillars positioned in the light-emitting structure and a plurality of ring-shaped openings surrounding the pillars. The distance between the ring-shaped openings is preferably between 0.2λ and 10λ, and λ represents the wavelength of the light beam.
Abstract:
A light-emitting system comprises: a first power input terminal and a second power input terminal; an insulating substrate; a first light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a first direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the first direction; a second light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a second direction to allow a current flow through the at least three light-emitting diodes of the second light-emitting-diode string generally in the second direction; a third light-emitting-diode string comprising at least three light-emitting diodes placed sequentially in a third direction to allow a current flow through the at least three light-emitting diodes of the third light-emitting-diode string generally in the third direction.
Abstract:
A light-emitting device comprises a substrate, at least one light-emitting structure configured to emit light beams and positioned on the substrate, and a ring-shaped photonic crystal structure positioned in the light-emitting structure. The ring-shaped photonic crystal structure includes a plurality of pillars positioned in the light-emitting structure and a plurality of ring-shaped openings surrounding the pillars. The distance between the ring-shaped openings is preferably between 0.2λ and 10λ, and λ represents the wavelength of the light beam.