Does the light emitted by the fluorescent lamp have ultraviolet rays?

Ultraviolet rays are invisible.

There is some ultraviolet light in fluorescent lamps, but the lamp glass absorbs most of those ultraviolet rays. There are almost no ultraviolet rays that are harmful to the human body in the light emitted. A 20-watt fluorescent lamp with a distance of 3 meters cannot detect light below 380nm (ultraviolet light) with an instrument.

In fact, long ultraviolet light, 350 to 380nm, is not harmful to the human body. So the light emitted by fluorescent lamps, as long as you don't stare at them, especially energy-saving lamps, is safe.

The incandescent lamp is the light emitted by the heating of the tungsten filament, which itself has almost no ultraviolet light, and with the bulb glass, there is no ultraviolet light in the light emitted. Therefore, it is very suitable for table lamps that are very close to the human body. There is a lot of infrared light in incandescent lamps, but it is harmless to the human body, just hotter.

The different colors of light are caused by the different proportions of blue, green, and red light contained in them, and are by no means caused by different color rendering. The color rendering index of ordinary fluorescent lamps is about 60, which is not very good; The color rendering index of the three-color fluorescent lamp (energy-saving lamp) is above 80, which is good; The color rendering index of an incandescent lamp is about 99, which is very good.

In the tube of the fluorescent lamp, ultraviolet rays are indispensable.

Due to the absorption of phosphors and tube glass, the short-wave ultraviolet light, which is harmful to the human body, is all absorbed. Some of the longer wavelength UV 360nm will escape. However, at a distance of 1 meter from the lamp, these ultraviolet rays are absorbed by the air.

Therefore, fluorescent lighting does not worry about ultraviolet rays.

Ultraviolet light is "invisible light", and the light emitted by fluorescent lamps is close to white light, not ultraviolet light.

However, the light emitted by any light source is not guaranteed to be of a single frequency, so there will be a little ultraviolet light. It is mainly based on visible light.

If you have any questions, please ask.

It relies on ultraviolet rays to irradiate the phosphor coated on the surface, and then the phosphor absorbs ultraviolet rays and then transitions to emit light, and ultraviolet rays cannot be completely absorbed.

Yes. Fluorescent lamps produce ultraviolet light first, and there are fluorescent substances that convert ultraviolet light into visible light.

Hello, it is a pleasure to serve you. Ordinary lights (such as incandescent buckets, fluorescent lights, LED lights, etc.) do not produce ultraviolet light. Because these bulbs are essentially luminaires driven by electric current, rather than by ultraviolet light excitation of fluorescent materials or phosphors to produce light.

However, there are some specific light bulbs, such as ultraviolet lamps, ultraviolet germicidal lamps, black light lamps, etc., that can produce ultraviolet light. These bulbs are usually empty to produce ultraviolet light through special fluorescent materials or phosphors, and their main functions are used for sterilization, mosquito control, banknote inspection, and special effect lighting. Ultraviolet rays are harmful to the human body, and long-term exposure to strong ultraviolet rays may lead to problems such as sunburn and cancer.

Therefore, it is necessary to pay attention to safety when using UV bulbs, avoid direct exposure to ultraviolet light, and use them strictly in accordance with the product instructions and usage specifications.

Yes, fluorescent lamps are excited by ultraviolet light, and LED lamps with light color *** are also excited by ultraviolet light. However, the ultraviolet rays are inside the glass tube, and when the light passes through the glass, the ultraviolet rays that are harmful to the human body have been absorbed, even if a small amount is not absorbed, as long as it is a distance from the lamp, it will be gone (the intensity is inversely proportional to the square of the distance, plus the absorption of air). Working under fluorescent lamps for a long time is the same as working with other lamps (e.g. LED lights).

The difference between LED fluorescent lamps and ordinary fluorescent lamps.

1. Health. In terms of visual experience, the brightness of LED fluorescent lamps is especially softer and more acceptable, with low-voltage constant current drive, no flicker, no glare, uniform brightness, and not easy to produce visual fatigue. It is a new type of healthy light source without light pollution.

2. Energy saving. The LED point light source becomes a strip divergent light source, and the brightness is increased by 4-5 times. Due to the increase in brightness, the current is reduced, and the heat generation is reduced, and the energy consumption is more than 85% compared to low power consumption.

4. Safety. No ballast, no starter, no flicker, fuse-free, high-temperature flame retardant material.

5. Environmental protection. Traditional fluorescent lamps contain large amounts of mercury vapor, which will volatilize into the atmosphere if broken. LED fluorescent lamps, on the other hand, do not use mercury at all and do not contain lead, which is environmentally friendly. LED fluorescent lamps are recognized as the green lighting of the twenty-first century.

The difference between the two is that the wavelength is different.

The main source of ultraviolet light in nature is the sun, and when sunlight passes through the atmosphere, ultraviolet rays with a wavelength of less than 290 nm meters are absorbed by the ozone in the atmosphere.

Artificial ultraviolet light source has a variety of gas arc (such as low-pressure mercury arc, high-pressure mercury arc), ultraviolet has a chemical effect to make the photographic film light-sensitive, fluorescence is strong, fluorescent lamp, various fluorescent lamps and black lamps used to trap insects in agriculture are used to excite fluorescent substances to emit light with ultraviolet light.

Extended information: Scientists divide UV radiation into A-band (400 315 nm), B-b-band (315 280 nm) and C-band (280 200 nm), which they call UVA, UVB, and UVC, respectively.

Ultraviolet lamps use low-pressure mercury lamps to concentrate ultraviolet light with an energy wavelength of 253 to 7 nanometers and more than 95 to excite the phosphors coated on the walls of the lamps to produce visible light. It belongs to the C-band ultraviolet ray, that is, UVC.

Generally, disinfection cupboards are sterilized by combining ultraviolet rays and high temperatures. At the same time, ultraviolet irradiation of the human body will increase melanin, so some friends who want to make their own **blackening will use ultraviolet lamp irradiation**, which is the same as the effect of sunbathing, but to control the time, the time transition will increase the chance of cancer.

Because sunlight can promote the body's absorption of vitamin D, that is, the absorption of calcium, but if you get too much sun, the ultraviolet rays in the sun will be harmful, ultraviolet lamps are similar to the ultraviolet rays in the sun, so it is harmful to the body for a long time under the lamp, a small amount of ultraviolet rays can also sterilize and can also be fluorescent substances to emit light!!

We all know that fluorescent lamps can be seen everywhere in our lives, and the quality of fluorescent lamps will be directly related to our use, and many people are worried that fluorescent lamps will have ultraviolet rays, which will affect our health, so is this really the case? Do fluorescent lamps have ultraviolet rays? Let's analyze this series of questions.

In fact, the fluorescent lamps we use in our lives contain ultraviolet rays, but the intensity is very weak. The ultraviolet rays of the fluorescent lamp are very harmful to the human eye, but the impact on ultraviolet sensitive objects is greater, as long as you don't look at the fluorescent lamp, there will be no problem.

How to maintain the lights when the day is turned off.

1. To keep the voltage stable, the AC range of the fluorescent lamp is between 85 volts and 245 volts, but if the current of the lamp is unstable for a long time, it will affect the power of the constant current source, and the energy-saving effect is not so good, so it is best to buy a 110 volt lamp.

2. Although the fluorescent lamp will have a designed aluminum shell for heat dissipation, if the location of the lamp is in a place with a lot of dust, the dust should be cleaned frequently to prevent dust accumulation and affect the fan heat.

3. In daily life, it is necessary to avoid water vapor and oil smoke from entering the lamp to avoid damage caused by short circuit.

Which brands of fluorescent lamps are better.

1. Opple Lighting, founded in 1996, mainly produces energy-saving lamps, ceiling lamps, LED lamps and other series, and its sales rank among the top in the world.

2. NVC Lighting, founded in 1998, headquartered in Huizhou, Guangdong, is mainly engaged in LED indoor lighting, commercial, architectural, industrial and other lighting fixtures.

3. Foshan Lighting, established as early as 1958, is a well-known state-owned brand.

4. Midea Lighting, a brand of Midea, was established in 2009. It is a fast-growing lighting company.

The above is the answer to the question of whether fluorescent lamps have ultraviolet rays and how to maintain the fluorescent lamps and the introduction of fluorescent lamp brands, I hope these contents can help you, and if you want to know more, you can continue to pay attention to Qeeka Home.