I woke up suddenly in the middle of the night and found that my skin and the child's skin were all black, while the child's small quilt and cushion were glowing and stinging.

? It turned out to be an ultraviolet mosquito killer.

The light emitted by ultraviolet lamps is mainly ultraviolet light, but there is also a small amount of visible purple light. I know that when purple light shines on white clothes, it will be reflected by clothes, so people will see clothes emit purple light.

So the light is reflected by the ultraviolet mosquito killer, so it looks shiny.

Violet lamp will emit ultraviolet rays, and long-term exposure will cause serious damage to people's eyes and skin.

Violet light will hurt your eyes for about 5 minutes.

Ultraviolet allergy is mainly affected by photosensitive substances, which is the main symptom of skin lesions caused by long-term exposure to sunlight, and may be accompanied by obvious itching and various forms of skin lesions, such as patches, papules, erythema, wheal and so on.

? 1. Itching sensation: ultraviolet allergy is a rare disease. There may be obvious itching or even wheal within 30 minutes after sun exposure, and some patients may subside within 24 hours, especially in spring and early summer.

2. The shape of the lesion is changeable: ultraviolet allergy mainly refers to the long-term exposure of the skin. When exposed to relatively strong sunlight, it will cause skin erythema, papules and plaques. Rashes often appear in exposed parts of the skin. If not treated in time, it may turn into chronic actinic dermatitis. It is recommended to find and treat as soon as possible.

The wavelength of ultraviolet mosquito killer is generally 365nm, which belongs to UVA band with longer wavelength. This band has strong ultraviolet penetration ability, which can penetrate most transparent glass and plastic, but the ultraviolet radiation that human body can bear is limited, so long-term use of ultraviolet mosquito killer is harmful to human health.

Violet mosquito killer has certain radiation. Violet mosquito killer will emit a certain amount of ultraviolet rays, which is harmful to human health. After long-term use, it will have certain radiation and pose a threat to human health. Therefore, Violet mosquito killer has certain radiation.

There is a certain amount of ultraviolet A light in the mosquito killer. Long-term contact with human skin will have adverse effects on human body, especially at night, the ultraviolet rays of mosquito killer will always shine on human skin, which will easily lead to human skin aging and is not conducive to human skin health. Therefore, it is generally not recommended to use a mosquito killer when turning on the light at night.

Ultraviolet flashlights can emit fluorescence on some objects, thus helping people to detect oil leakage, antique jewelry repair and counterfeiting, criminal investigation, ink curing, fingerprint and footprint tracking.

Fluorescent dyes and inks. Manufacturers will add special fluorescent chemicals to dyes and inks to mark items, verify the authenticity of items or detect leaks, including "invisible pens" used at home.

Tonic water. Quinine in toner has fluorescence, while soda water has no fluorescence reaction. Some high-end bars may have black lights (similar to purple flashlights) to highlight this effect.

? Scorpion. Scorpions and some insects fluoresce under ultraviolet radiation. This is why you often catch scorpions with ultraviolet flashlights at night.

Whitening agent Some household paper towels, masks, baby diapers, washing powder, tooth whitening agent, paper and other items contain fluorescent whitening agent, which can be easily found under the irradiation of ultraviolet flashlight.

Antifreeze. In the fluorescent leak detection industry, antifreeze containing fluorescent agent is often used to enhance the leak detection ability. High-power LED ultraviolet flashlight can easily find the leakage of equipment.

? Body fluids. Many body fluids, such as urine, saliva or semen, will glow under ultraviolet radiation.

Some special cosmetics are designed to glow under ultraviolet light. At some parties, the organizers will prepare low-power black lights to illuminate the participants who use special cosmetics, so that different colors and contours can appear and increase the atmosphere of the party. Some problematic cosmetics may also emit fluorescence.