摘要:
A light source apparatus according to an embodiment of the present technology includes a plurality of light source portions, a plurality of temperature adjustment units, and a drive control unit. The plurality of temperature adjustment units are capable of respectively adjusting temperatures of the plurality of light source portions. The drive control unit is capable of controlling a drive timing of each of the plurality of temperature adjustment units.
摘要:
A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.
摘要:
A light emitting diode (LED) light unit is disclosed. For example, the LED light unit includes at least one support plate having one or more inner openings. At least one LED array may be coupled to an LED board. The LED light unit also includes at least one heat pipe coupled to the LED board, wherein said LED board is coupled to the at least one support plate.
摘要:
A high-power LED lamp cooling device and its manufacturing method, which includes: manufacturing a semiconductor crystal bar in advance into cone-shaped crystal bar with one end having large diameter and the other having small diameter, making color mark on each wafer as the large-diameter end surface of the tail end when the cone-shaped semiconductor crystal bar is cut into slices; cutting and pelletizing the conical surface to obtain polygonal cylindrical N-type or P-type semiconductor elements, arranging them in a matrix form between two beryllium-oxide ceramic chips provided with conductive circuits, connecting head end of N-type semiconductor elements to tail end of the P-type semiconductor elements in series to manufacture high-power LED lamp cooling device. The high-power LED lamp cooling device can achieve: good cooling effect, high working efficiency, low energy consumption and capable of reducing light failure of LED lamp, and prolonging service life of the high-power LED lamp.
摘要:
A light emitting diode (LED) lighting system including a first heat dissipation structure having a front side acting as a contact area to at least one LED and a back side. At least one second heat dissipation structure is positioned adjacent to the backside of the first heat dissipation structure. At least one thermoelectric module is positioned between the first heat dissipation structure. At least one second heat dissipation structure for conducting heat is produced from the at least one LED during operation from the first heat dissipation structure towards the at least one second heat dissipation structure. The front side of the first heat dissipation structure comprises at least one upwardly protruding structure extending distally away from the at least one second heat dissipation structure and the at least one upwardly protruding structure acts as the contact point to the at least one LED.
摘要:
An illumination system includes a light-emitting device, a first switch element, a driving device, a detecting circuit, an arithmetic unit and a power supply unit. The first switch element is configured for receiving an external voltage supplied by an external power source. The driving device is configured for converting the external voltage to a direct-current power signal for driving the light-emitting device to emit light; the detecting circuit is configured for detecting a voltage across the first switch element and converting the voltage to a detecting signal; the arithmetic unit is configured for performing an arithmetic operation on the direct-current power signal and the detecting signal to generate a control signal; and the power supply unit is configured for supplying power for the light-emitting device according to the control signal and driving the light-emitting device to emit light. An illumination driving method is also disclosed herein.
摘要:
A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.
摘要:
Reflector designs for a large area panel light source create induced draft cooling means adjacent to the panel light source. The panel light source has a wavelength conversion element on a solid state light source for emitting light of a first and second wavelength to form a broader emission spectrum of light from the panel light source.
摘要:
A light source apparatus includes a cooling mechanism driving portion for driving a cooling mechanism in such a manner that an element temperature of a light source element which is detected by an element temperature detecting portion reaches a target temperature, and a control portion for calculating a dew point temperature of the cooling mechanism and controlling the cooling mechanism driving portion and a light source element driving portion by using the calculated dew point temperature and the element temperature.
摘要:
A lamp having a light emitting diode, a Peltier device, a heat sink, a translucent, thermally conductive window, and an optical fluid. The Peltier device is in thermal communication with the light emitting diode and converts a waste thermal energy discharged by the light emitting diode into an electrical energy. Conductors transfer the electrical energy from the Peltier device to a boost circuit which converts a level of a voltage associated with the electrical energy output from the Peltier device to a higher, more useful value. The heat sink transfers a second thermal energy from the Peltier device. The optical fluid is located between the translucent, thermally conductive window and the light emitting diode. The optical fluid has an angle of diffraction having an intermediate value relative to an angle of diffraction associated with the light emitting diode and an angle of diffraction associated with the translucent, thermally conductive window.