LED lights are already a very common household product in China. Basically every house will use LED lights more or less. 3.15 After the program about table lamp strobe was broadcast, more and more people began to realize the importance of healthy lighting. The culprit is not only strobe, but also in many ways. Nowadays, students have heavy academic work, and night reading is a very common thing for students. There were frequent news about lights hurting eyes, so the parents were anxious, and the discussion about whether the student's desk lamp was an eye-protecting desk lamp or an eye-scorching desk lamp has never stopped.
In fact, the country does not currently provide standards and definitions for eye protection lamps, and the so-called eye protection lamps are actually reading lamps, and their scientific name can be called reading and writing desk lamps. Therefore, there is no lamp that can really protect the eyes, and some are just good reading lamps.
So, what kind of desk lamp is best for the eyes? There are the following three standards to measure the quality of a desk lamp.
1. Illuminance and uniformity of illuminance
Illumination can be simply understood as whether the light is bright enough. Reading and writing in a darker light for a long time can easily lead to visual fatigue, and in severe cases, it can cause myopia; the uniformity of illumination means that the illumination is sufficiently uniform. my country's national standard "Performance Requirements for Reading and Writing Table Lamps" sets requirements for the illuminance and uniformity of the illuminance of the table lamps. The CQC technical specifications stipulate two illuminance levels on the basis of the national standard: Class A and Class AA. With the light source as the center, the measuring ranges are respectively 30 cm and 50 cm in radius. Class A: The illuminance should reach 150lx within 50cm from the core area of the light, and at least 250lx within 30cm from the core area of the light; Class AA is twice that of Class A, and the illuminance level is higher. If you need to work under a desk lamp for a long time Time, it is recommended to choose a table lamp with a high illuminance level. Generally, households do not have an illuminance meter. How to judge whether the illuminance is sufficient? Take a look at the convenience store chains nearby. Generally, the decoration of the convenience store chains has illumination requirements. According to our experience, how many chain convenience stores' illuminance (tested at 1.5 meters from the ground) is 300lx.
Convenience Store
When children use the reading lamp, it is not recommended to only turn on the desk lamp, but to turn on other light sources in the room as a backlight, so as not to cause an obvious difference between light and dark in the room.
2. Glare
Lamps and lanterns should be shading, without excessive glare. Anti-glare refers to the glare of the light, which is an important indicator to evaluate the performance of the table lamp. As the light source itself, the higher the brightness, the more obvious the glare; the closer the light source is to the line of sight, the more obvious the glare. How can I avoid glare? The child sits in the normal reading and writing position and looks at the lamp, and should not see the inner wall of the transmitter and the light source; must not directly use the exposed bulb to avoid direct light. The LED desk lamp looks directly at the light-emitting surface, the light is not dazzling, and the light source is not visible (it is not good to see it vaguely). In addition, you should also pay attention when choosing the desktop material. Try not to choose a glossy desktop, which will reflect the lamps, ceilings and walls. The brightness produces reflected glare.
It is best to use a desk lamp with side-emitting light to evenly distribute the lamp beads on the side. Side emitting can effectively prevent direct light from damaging the eyes.
Side emitting principle
3. choose a good LED light source
LED technology is getting better and better. The LED light source using the latest technology not only meets the requirements of high color rendering, but the proportion of blue light is also significantly lower than that of conventional LED products. The most important thing about reading lamps is light. At present, the most suitable LED light source for eye protection desk lamps is a full-spectrum LED based on "healthy lighting". The spectrum of the full-spectrum LED light source is close to the natural spectrum. In particular, the SUNLIKE series produced by Seoul Semiconductor is a full-spectrum LED light source that is closest to the natural spectrum. The color fidelity and saturation are close to natural light, which can illuminate the most natural color of the object. In addition, it can also reduce glare, enhance clarity and texture layering, and improve product safety performance. Wu Sen said, "SunLike series products can provide healthy lighting, wake up during the day, improve sleep quality at night, and have no harm to photosensitive cells." Beamtec full-spectrum eye protection desk lamp is equipped with SunLike 3030 light source, no flicker, side-emitting anti-glare, 4000K Natural light color temperature is the first choice for parents' eye care products.
The most important thing about reading lamps is light. What color temperature table lamp should be used for student work? "Performance Requirements for Reading and Writing Table Lamps" does not specify the working color temperature of table lamps, but the national standard "Performance Requirements for Reading and Writing Table Lamps" stipulates that dimming lamps: "For LED lamps with a color temperature higher than 4000K, it is recommended that the color temperature be adjusted at night. To below 4000K". For non-dimmable lamps, LED lamps with a color temperature higher than 4000K should be marked "This lamp is not suitable for use at night".
4000K corresponds to the color temperature of sunlight around 9 o'clock in the morning. 8 to 10 o'clock is one of the most productive periods of the day. The use of 4000K natural color also conforms to the laws of the body's biological clock. Student desk lamps are generally used at night, and cold light can help children concentrate and improve efficiency. However, cold light will affect the secretion of melatonin and affect the quality of children's sleep. Yellow light helps sleep, but most parents don’t want their children to be drowsy during homework. 4000K is a student desk lamp color temperature that balances health and learning efficiency.
According to our years of tracking the usage of students, we recommend that the lower grade students use a color temperature below 4000K; the upper grade students have a lot of homework and their eyes are well-developed, choosing a color temperature within 5000K is more conducive to improving learning efficiency.
As for blue light damage, it sounds pretty scary. When you walk around under the sun, some people advise you to go to the hospital for CT, chest X-ray, B-ultrasound, etc. to check whether you have skin cancer. The blue light damage of the LED industry has been demonized. Only lamps that are too cheap need to worry about blue light. Can I not worry about cooking oil if I eat fast food for 5 yuan, 2 meat, and 1 vegetarian rice on the side of the road? ! Very cheap desk lamps are worried about blue light for the same reason. Fortunately, the desk lamp produced with the full-spectrum Guangmai LED SUNLIKE light source does not have to worry about blue light damage. If the best technology SUNLIKE Blu-ray cannot be controlled in RG0, which other product can do it?
In summary, a good eye protection desk lamp must be flicker-free, anti-glare soft light, direct current, and a good light source. A good lamp is a good light source. The spectrum of Guangmai LED SunLike lamp beads is very close to natural light. The children's eye protection lamp produced with Guangmai LED SunLike lamp beads is a good choice for parents who pay attention to the protection of their children's eyesight.
