LED lamp is common in today's prosperous time has a household products.
We no matter at home or in the company or shuttle in immediately will see the LED lamp.
Since the news about desk lamp
stroboscopic, more and more people begin to pay attention to the importance of vision.
So students desk lamp and other LED lamp is the desk lamp that shield an eye or the discussion of the injured eye lamp has been no interruption.
Countries for the desk lamp that shield an eye is actually gave no standards and defined, and called the desk lamp that shield an eye, is actually the student desk lamp, scientific name can be called to read the student special lamp.
Therefore, there isn't a desk lamp can truly protect your eyes, there are only good student desk lamp.
So how do we choose the desk lamp that shield an eye is the best for your eyes?
We can through the following three aspects: to determine the quality of a light the lamp that shield an eye.
A: LED light source, LED technology is more and more perfect.
Using the latest technology of the LED light source not only meet the requirements of high color rendering, blu-ray proportion is significantly lower than the conventional LED products.
Reading lamp light is the most important.
Now the most suitable LED light source for the desk lamp that shield an eye is based on healthy birth the full spectrum of LED lighting.
The full spectrum of LED light source spectrum and the spectrum is close to nature.
Especially the desk lamp that shield an eye series, light is the closest to natural the full spectrum of LED light source of the spectrum.
Its color fidelity and saturation are close to natural light, to illuminate the object's natural color.
In addition, still can reduce glare and enhance the definition and the texture layer, improve the safety performance of the product.
No stroboscopic, side light glare, natural light color temperature 4000 k, is the vast majority of parents eyecare preferred products.
Two: the glare of lamps and lanterns should have shading sex, without excessive glare.
Anti glare light not dazzling, is an important index for desk lamp performance evaluation, as the light source itself, the higher the luminance, glare, the more obvious;
Glare of light source position nearer the distance from the line of sight, the more obvious.
How to avoid glare?
Children sit normal read/write look over to the lamp, should see the emitter walls and light source;
Do not apply directly to bare bulb, avoid direct light.
LED lamp look shiny surface, the light is not dazzling, can't see the light,
See also bad)
. In addition, should also pay attention to when choosing desktop material, try not to choose glossy desktop, can reflex the brightness of the lamps and lanterns, the ceiling and wall, produce the reflected glare.
Had better use side light will light bead is uniformly distributed on the side of the desk lamp.
Side light can effectively avoid direct light damage to the eyes.
Three: brightness and brightness uniformity of brightness, can be as simple as bright enough.
For a long time to read and write in dark light, easy to cause visual fatigue, serious when can cause myopia.
Brightness uniformity, it is light enough for uniform enough.
China's national standard 'reading and writing assignment desk lamp performance requirements' of the brightness of the lamp and the luminance uniformity proposed requirements, CQC specification is on the basis of national standard specifies two brightness levels: class A and class AA.
On light source, measuring range radius is 30 cm and 50 cm, respectively.
Class A: the core region within the scope of 50 cm distance light brightness should reach 150 lx, from the core region of 30 cm of the light should be at least 250 lx.
AA is A level two times, brightness level is higher, if you need to work A long time under the desk lamp, recommended to choose the desk lamp of high brightness level.
Then in a common family, no meter, how to determine whether the brightness is enough?
Look at a nearby convenience store chain, decorate general chain convenience stores have brightness requirements.
According to our experience, the brightness of the convenience store chain (
From the ground 1.
5 meters test)
For the 300 lx.
So when children use the desk lamp that shield an eye, only is not recommended to open the lamp, and should open indoor and other light source as a backlit, don't cause indoor apparent difference between light and shade.
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