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护眼灯的种类有哪些?

来源:http://www.wfjszmd.com/ 日期:2022-01-14 发布人:wanfeng 浏览次数:

1、高频灯
1. High frequency lamp
电网的交流电为50Hz,其电压波形每秒变化50次,而电压幅度的变化频率为电压波形变化频率的2倍,即100次/秒。直接使用交流电的荧光灯(日光灯),其光亮随灯管两端的电压幅度变化,所以会闪烁,闪烁频率与电压幅度变化的频率相同,为100次/秒。人眼能感知的主要变化为30Hz以内,灯光每秒100次的明暗交替变化虽不会被我们感知到,这些闪烁对于人眼有影响。如光亮时,眼中瞳孔会收缩;光暗时,瞳孔会放大。所以直接用交流电的日光灯对于眼睛有伤害。
The alternating current of the power grid is 50Hz, and its voltage waveform changes 50 times per second, while the change frequency of voltage amplitude is twice the change frequency of voltage waveform, i.e. 100 times / second. For fluorescent lamps (fluorescent lamps) that directly use alternating current, their brightness changes with the voltage amplitude at both ends of the lamp tube, so they will flash. The flashing frequency is the same as the frequency of voltage amplitude change, which is 100 times / s. The main change that the human eye can perceive is within 30Hz. Although the alternating changes of light and shade 100 times per second will not be perceived by us, these flashes have an impact on the human eye. If it is bright, the pupil of the eye will contract; When the light is dark, the pupil will enlarge. Therefore, direct use of AC fluorescent lamps is harmful to the eyes.
高频灯(如节能灯)中使用电子变频器,将50Hz交流电变成高频交流电(通常为30k-50kHz),再用高频交流电点灯。在高频灯中,光亮每秒变化几万次,由于人眼来不及随之变化,就感觉不到变化,因而就是“不变”了,达到护眼的目的。高频灯的驱动电路会有30-50kHz的电磁信号,有人声称这对人体有害,但还没有具体报道或数据证明,须进一步研究、核实。
Electronic frequency converter is used in high-frequency lamps (such as energy-saving lamps) to change 50Hz AC into high-frequency AC (usually 30k-50khz), and then light the lamps with high-frequency AC. In the high-frequency lamp, the light changes tens of thousands of times per second. Because the human eye has no time to change, it can not feel the change, so it is "unchanged" to achieve the purpose of eye protection. The driving circuit of high-frequency lamp will have 30-50KHZ electromagnetic signal. Some people claim that it is harmful to human body, but there is no specific report or data proof, which needs further research and verification.
校园护眼灯
2、电热灯
2. Electric heating lamp
普通白炽灯以及卤素灯(halogen lamp)的光谱连续,最接近自然光谱,所以实际上也是一种“护眼灯”。而且,因为交流电先加热灯丝,灯丝先发热再发光,由于灯丝有热容量,所以电源变化时,灯丝还仍然是热的,明暗变化不会象荧光灯(日光灯)那样明显,但白炽灯的能效非常低,60W以上的白炽灯已经被国家列为淘汰商品 。卤素灯是白炽灯的改进版,在填充的惰性气体内添加微量卤元素。与普通白炽灯相比,卤素灯具有体积小、光效高,寿命长的优点
The spectrum of ordinary incandescent lamp and halogen lamp is continuous and closest to the natural spectrum, so they are actually a kind of "eye protection lamp". Moreover, because the alternating current heats the filament first, the filament heats first and then emits light. Because the filament has heat capacity, when the power supply changes, the filament is still hot, and the light and shade changes will not be as obvious as fluorescent lamps (fluorescent lamps), but the energy efficiency of incandescent lamps is very low. White incandescent lamps above 60W have been listed as obsolete commodities by the state. Halogen lamp is an improved version of incandescent lamp. Trace halogen elements are added to the filled inert gas. Compared with ordinary incandescent lamps, halogen lamps have the advantages of small volume, high luminous efficiency and long service life
3、UIV OLED台灯
3. UIV OLED table lamp
UIV OLED照明采用低压直流供电,故基本没有频闪,并且无蓝光紫外伤害,可以进行大面积OLED面板制造,是我国的重点研究计划。OLED照明既不需要将灯丝加热到上千摄氏度发光,也不需要用汞蒸气产生紫外线激发荧光粉发光。因为没有电能量的多次转换过程,OLED照明要比现在的节能灯还要节约大约60%至70%的电能。更重要的是,OLED照明在生产、使用过程中都不会产生污染。这化解了目前节能灯使用汞对环境的破坏风险。据了解,1只普通节能灯的含汞量约5毫克,一旦渗入地下后即可造成上百吨水受污染。汞在常温下即可蒸发,废弃的节能灯管破碎后,瞬时可使周围空气中的汞浓度超标上百。一旦进入人体的汞超标,就会破坏人的中枢神经系统,甚至致人死亡。我国每年报废的含汞照明灯数以亿计,由于处置不当而释放到大气、水环境中的汞量,高达数十吨
UIV OLED lighting adopts low-voltage DC power supply, so there is basically no stroboscopic and no blue light and ultraviolet damage. It can manufacture large-area OLED panels, which is a key research plan in China. OLED lighting does not need to heat the filament to thousands of degrees Celsius, nor does it need to use mercury vapor to generate ultraviolet light to excite the phosphor to emit light. Because there is no multiple conversion process of electric energy, OLED lighting saves about 60% to 70% of electric energy than current energy-saving lamps. More importantly, OLED lighting will not produce pollution in the process of production and use. This resolves the risk of environmental damage caused by the current use of mercury in energy-saving lamps. It is understood that the mercury content of an ordinary energy-saving lamp is about 5 mg, which can pollute hundreds of tons of water once it seeps into the ground. Mercury can evaporate at normal temperature. After the waste energy-saving lamp tube is broken, the mercury concentration in the surrounding air can exceed the standard for hundreds of times. Once the Mercury entering the human body exceeds the standard, it will destroy the human central nervous system and even cause death. Hundreds of millions of mercury containing lamps are scrapped every year in China. Due to improper disposal, the amount of mercury released into the atmosphere and water environment is as high as dozens of tons
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