Single-ended DC (direct current) input LED (light-emitting diode) straight-tube fluorescent lamp

Abstract

The invention provides a single-ended DC (direct current) input LED (light-emitting diode) straight-tube fluorescent lamp which comprises an LED illuminator and a lamp tube, wherein the inner wall of the lamp tube is coated with a fluorescent powder coating, one end of the lamp tube is open and the other end of the lamp tube is closed, and the LED illuminator is installed at the open end of the lamp tube; and the peak wavelength of the spectrum of light emitted by the LED illuminator is between 320nm and 480nm. Since the LED illuminator capable of emitting blue and violet light is mounted at the open end of the lamp tube, the peak wavelength of the spectrum of light emitted by the LED illuminator is between 320nm and 480nm, and the fluorescent powder coating is coated on the inner wall of the lamp tube, and when blue and violet light emitted by the LED illuminator irradiates the fluorescent powder coating on the inner wall of the lamp tube, the fluorescent powder coating is activated to emit light continuously. In the invention, mercury grains causing environment pollution are not used, and the lamp tube does not need to be vacuumized, therefore the single-ended DC input LED straight-tube fluorescent lamp has the advantages of an LED lamp, such as energy saving, environmental friendliness and long service life, and also has the characteristics of a fluorescent lamp, such as high luminous flux and high unit power lumen, is energy-saving and environmentally-friendly.

Description

technical field [0001] The invention relates to a straight tube fluorescent lamp, in particular to an LED straight tube fluorescent lamp. Background technique [0002] With the continuous improvement of LED lighting technology and production technology, the use of LED has become wider and wider, and has extended from the original home decoration lighting to the field of reading lighting and ordinary daily lighting. Recognized advantages, it can replace traditional fluorescent lamps, metal halide lamps and conventional energy-saving lamps. Conventional straight tube fluorescent lamps are equipped with mains electrodes at both ends. The straight tube fluorescent lamps rely on electronic ballasts and starters to generate high-speed electron flow between the electrodes at both ends of the lamp tube and mercury particles, and rely on high-speed electron flow to activate the inner wall of the lamp tube. The fluorescent powder coating emits light. This kind of ordinary fluorescent...

AI Technical Summary

Problems solved by technology

Conventional straight tube fluorescent lamps are equipped with mains electrodes at both ends. The straight tube fluorescent lamps rely on electronic ballasts and starters to generate high-speed electron flow between the electrodes at both ends of the lamp tube and mercury particles, and rely on high-speed electron flow to activate the inner wall of the lamp tube. The fluorescent powder coating emits light. This kind of ordinary fluorescent lamp has electrodes and filaments at both ends, the starting current is large, the voltage is high, the service life of the filament is short, the light decay of the phosphor coating is relatively fast, and the overall life of the fluorescent lamp is usually only 6 ~12 months, when the fluorescent lamp is scrapped, the mercury particles in it will pollute the environment

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