What are the occupational disease hazards of LED energy saving lamps?

Optical radiation hazards of LEDs.

Like other light sources, LED light radiation can also cause harm to the human body. Injuries mainly occur in the eyes of the human eye, such as the photochemical hazards of the eyes, the near-ultraviolet hazards of the eyes, the blue light photochemical hazards of the retina, the photochemical hazards of the retinal aphak, the thermal hazards of the retina and the thermal hazards, etc., and the eyes are more likely to be harmed by the two. In addition, LEDs can also cause glare hazards.

Glare is one of the most important factors in evaluating the quality of lighting due to the inappropriate distribution or range of brightness in the field of vision, or the existence of extreme brightness contrast in space or time, so as to cause discomfort and reduce the visibility of objects. Mainly LED light sources whose brightness can cause glare to the human eye. We call this hazard glare residual hazard, specifically refers to the hazard of dazzling light that dazzles people or produces unfavorable visual residual phenomena, which is an intermediate stage hazard between glare hazard and direct photochemical hazard.

Drivers who have been driving at night may have noticed that the brightness of the LED traffic lights looks very uncomfortable, especially in the dim light at night, the pupils of the human eye are in a dilated state, at this time, a vehicle with a high-beam narrow beam LED light suddenly appears in front of it, and a large number of strong light quickly enters the eyes because the pupils of the eyeballs do not have time to shrink, and the bright feeling makes the human eye unable to adapt, causing disgust, discomfort, and even loss of vision, which is one of the manifestations of "glare" that people understand. In fact, LED flashlights also cause nasty glare and visual residues.

Dr. Neil R Haigh, Optoelectronic Consultant of Blueside Photonics in the United Kingdom, presented the preliminary test results of the safety analysis of high-brightness LEDs according to the latest international safety standard IEC 62471: 2006, and focused on the assessment of the extent of the blue retinal hazards that may be caused by the latest generation of high-brightness LEDs, and how to estimate and classify these hazards.

For the LED energy-saving lamp in the low-carbon market, although it has the advantages of energy saving and long life, because it is a blue light source, once the blue light exceeds a certain measurement standard, it will cause damage to the human body, especially the eyes. Unfortunately, at present, there is no corresponding standard for the amount of blue light on LED lights and display screens in China, "there is still a blank in China in this regard, and it is necessary to rely on the implementation of strict measurement standards to control the amount of blue light of LEDs." ”

LED lights are one piece of illumination. There's no harm.

LEDs are made up of epitaxial wafers-chip-packages that become LED lighting, and they are just a high-efficiency luminaire, just like the tungsten filament of tungsten lamps that have been used now.

The advantages of LED are mainly energy-saving, high luminous intensity, long service life, and the disadvantages of LED lights are that they are more expensive.

Hope it helps.

1. The lamp power is unqualified.

Some companies increase the nominal power value (i.e., rated power value) of low-power energy-saving lamps, thereby increasing the selling price.

2. The initial light efficiency is unqualified.

If this index is unqualified, the light efficiency of the energy-saving lamp will be reduced, the service life will be shortened, and the effect of energy saving and money saving will not be achieved.

3. The mechanical strength is unqualified.

This test is aimed at whether the lamp head part will be loose or fall off, and whether it will cause consumers to accidentally electrocute during installation or replacement.

4. The power factor is unqualified.

In order to achieve the purpose of promoting products, some companies mark the nominal value of the power factor too high.

5. Harmonics are unqualified.

Due to the high harmonic content of the power supply current at the input end of the electronic ballast, it is easy to pollute the power supply, increase the loss of the power grid, and interfere with other electrical equipment. Therefore, the harmonic content of the current must be strictly limited to reduce the harm caused by harmonic pollution of the power supply.

6. The color characteristics are unqualified.

The color characteristics of energy-saving lamps refer to the reduction characteristics of light to objects, which have good color rendering, which can make the color of the object closer to the color under the light under the sun, and can best reflect the original characteristics of things. Energy-saving lamps that fail to pass this index are easy to cause eye fatigue and other injuries to consumers.

In order to truly achieve energy conservation and environmental protection for the energy-saving lamps used in the home and will not hurt people's eyes during use, it is recommended that consumers should choose some brand enterprises to purchase energy-saving lamps and lanterns, do not covet a temporary cheapness, you know, the use of safety and environmental protection is the most important.

I don't think there's much of a problem with plug-ins and assembly. Mainly in the welding process. It is generally soldered.

Tin used for soldering is often impure and contains some lead. Some use lead-containing solder. Lead is a heavy metal and is harmful to the human body.

Therefore, you should pay attention to protection when welding.

Harmful. The assembly problem is not big, the welding impact is large, mainly the smoke generated by the flux of electronic welding during welding will cause a variety of diseases to the eyes, nasal cavity, and respiratory tract.

1. Welding has a great impact, and nothing else has any impact. The flux produced during soldering, which is mainly electronic soldering, can cause a variety of diseases to the eyes, nasal cavity, and respiratory tract.

2. Protective measures: welders weld on site for safety. Protective equipment must be worn in accordance with national regulations.

There are many protective equipment for welders, mainly including protective masks, helmets, protective glasses, noise-proof earplugs, safety helmets, overalls, earmuffs, gloves, insulated shoes, dust masks, safety belts, gas masks and shawls.