Abstract: A method includes grinding alumina powder into alumina particles with ultrafine particle powder, performing a purification process so that the alumina particles have a purity greater than 99.999%, processing the alumina particles by a spray dryer, processing the alumina particles by a sheet molding compound to produce an alumina material, and placing the alumina material in a vacuum super high temperature furnace to have a crystal growth which includes placing the alumina material in a predetermined crucible in the vacuum super high temperature furnace, preburning the alumina material to form a half-baked alumina cake, heating and increasing a temperature of the alumina cake so that the alumina cake is disposed at a melted state until the crystal growth is finished, and curing the alumina cake that is melted so as to form a sapphire crystal.

Abstract: A plant cultivation apparatus includes at least one housing, a lamp holder mounted on an upper end of the housing, a basin mounted on a lower end of the housing and containing soil, a light emitting diode (LED) lamp mounted on the lamp holder, a water pipe connected with the housing to supply water to the soil of the basin, a constant rate timing device connected with the water pipe, an external water source connected with the water pipe, and a high oxygen water generating device connected with the water pipe. Thus, the plant cultivation apparatus can enhance the growth efficiency of the plant by provision of the high oxygen water generating device. In addition, the plant cultivation apparatus has sterilizing and odorizing functions by provision of the ozone generating device.

Abstract: An LED base plate enabling the LED to emit high luminance white light. The base plate has a reflective surface, and protrusions disposed on the reflective surface have top portions formed with curved surfaces. The protrusions have bottom widths of 2 to 4 micrometers and heights of 1.2 to 1.8 micrometers, with adjacent protrusions having spaces of 0.6 to 3 micrometers. An InGaN epitaxy layer is coated on the reflective surface of the base plate and emits ultraviolet of wavelength in the range of 380 to 410 nanometer when the InGaN epitaxy layer is electrified. Ultraviolet light reflected by the reflective surface of the base plate and the protrusions stimulates and mixes fluorescent compounds of zinc oxide and yttrium aluminum garnet to generate complementary light of ultraviolet light. High luminance white light scatteringly emitted is used for illumination.

Abstract: An LED base plate enabling the LED to emit high luminance white light. The base plate has a reflective surface, and protrusions disposed on the reflective surface have top portions formed with curved surfaces. The protrusions have bottom widths of 2 to 4 micrometers and heights of 1.2 to 1.8 micrometers, with adjacent protrusions having spaces of 0.6 to 3 micrometers. An InGaN epitaxy layer is coated on the reflective surface of the base plate and emits ultraviolet of wavelength in the range of 380 to 410 nanometer when the InGaN epitaxy layer is electrified. Ultraviolet light reflected by the reflective surface of the base plate and the protrusions stimulates and mixes fluorescent compounds of zinc oxide and yttrium aluminum garnet to generate complementary light of ultraviolet light. High luminance white light scatteringly emitted is used for illumination.

Abstract: An outdoor LED (light emitting diode) system includes an LED device, a storage battery storing an electric energy therein and connected to the LED device to provide an electric power to the LED device, a solar energy generator connected to the storage battery to provide an electric power to the storage battery, and a wind power generator connected to the storage battery to provide an electric power to the storage battery. Thus, the electric power of the LED device is supplied by two types of natural energy, including the solar energy and the wind energy, to prevent from incurring an environmental pollution so as to satisfy the requirements of environment protection.

Abstract: An outdoor LED (light emitting diode) system includes an LED device, a storage battery storing an electric energy therein and connected to the LED device to provide an electric power to the LED device, a solar energy generator connected to the storage battery to provide an electric power to the storage battery, and a wind power generator connected to the storage battery to provide an electric power to the storage battery. Thus, the electric power of the LED device is supplied by two types of natural energy, including the solar energy and the wind energy, to prevent from incurring an environmental pollution so as to satisfy the requirements of environment protection.