Mechanism of OLED eyecare preferred, blu-ray hazards - is analysed China lighting network

What is the blue light harm? Believe that many parents for children to buy lamp, all think of the word 'eye', in contrast, the concept of the name is 'blu-ray harm'. Many products on the market are marked 'blu-ray reduction', 'blue', rank is the 'top', 'exemption', noun phrases are many, also is a mess, how to identify distinguish a lot is a confused, overwhelmed. The most ideal light source is the sun, but must use artificial light at night. As everybody knows, visible light wavelengths in 380 - 780 nm, which contains common blue light spectrum ( 400nm－480nm） 。 White light is is formed by a variety of monochromatic light, the most basic sanki colours red, green and blue. Measure is Bai Guangguang color color temperature, the unit is K ( Kelvin) 。 Usually, the LED lighting white light color temperature range is 2700 k to 7000 k, increase the blue of the components of white light, white light color temperature is increased, reduce the white light the blue component and increase the red component, white light color temperature is reduced. The photon energy and wavelength can be seen from the diagram, in visible light, blue light ( Wavelength 400-500 nm) The energy of the photons most, called the high-energy light. Blu-ray harm is mainly rich in high-energy blu-ray optical radiation caused by photochemical reaction, which leads to the dangers of retinal injury. Due to blue light component is relatively rich in the LED products, and exposed the LED lighting source is often very high, so the LED lamps and lanterns there may be a risk potential dangers of blu-ray. The mechanism of the blue light harm ( Diagram) 1-2015 part 1 general requirements and test the lamps and lanterns, forthcoming, since January 1, 2017, the center will adopt the new standard implementation of authentication and issue a new certificate, no longer the old standard authentication certificate. The new standard especially increases the demand for blu-ray harm with integral LED or LED modules, lamps and lanterns should be performed according to IEC/TR62778 blu-ray hazard assessment. Blu-ray hazard grade division standard is pointed out that for children with portable lamps and lanterns and small night light, in the 200 mm distance measured blu-ray hazard rating should not exceed RG1. From harm blu-ray hierarchy, it is recommended that when lamps and lanterns of choose and buy, the lowest standard to achieve RG0, and relevant certification report, since Lb is as small as possible, taking care of eye health. Blue is the hazards? ！ 1, high-energy shortwave at the bottom of the blue light through the cornea and lens to the retina, directly on the eye retina nerve irreversible chemical damage, directly or indirectly lead to the macular area cell damage. 2, blu-ray can lead to cataracts, postoperative retinal damage as the growth of the age, the human body itself of the lens will gradually yellow, this helps to filter the blu-ray, avoid blue light damage. In cataract surgery, however, patients lost the natural barrier 'lens', the blue light will direct the retina, and damage of retinal pigment epithelial cells, seriously affect the eye health. 3, the blue light can cause blurred vision, lead to visual fatigue, lead to VDT ( 视觉显示终端) Syndrome blu-ray into fundus after focus falls in between the retina and the lens and not fall in the retina, such will aggravate the color difference and blurred vision, eye muscle strains, then the eye blood hypertension, ocular blood supply, thus increasing fatigue. 4, blue light can inhibit the secretion of melatonin, destroy the balance of hormone secretion, affect morpheus quality, improve their incidence of major diseases. Love with eyes, eye, eye, scientific, mu bath sunshine. YanZhiXiang

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