Therefore, for many children, the most urgent need is an "eye protection desk lamp" that can provide good lighting, not that pair of heavy glasses. This article will focus on introducing all kinds of popular science and literacy for eye protection desk lamps, as well as matters needing attention in selection and evaluation.
Where is the "eye protection" of the eye protection desk lamp?
Many people always think that the "eye protection" of eye protection desk lamps is direct eye protection. In fact, eye protection is assisted by improving the learning environment, providing sufficient light, healthy and safe light sources, and assisting in cultivating eye habits. Therefore, the "eye protection" of eye protection desk lamp is a false concept and a publicity stunt. However, the importance of eye protection desk lamp to young students is undeniable.
What shopping spots do you need to see for eye protection lights?
0 1, lighting
In the national standard for reading and writing desk lamps, it is divided into two levels: A level and AA level. A level is qualified and AA level is excellent. The reason why we pay attention to whether the illuminance reaches the standard is because the illuminance is the category of the maximum brightness that a desk lamp can provide. If the illumination is unqualified, it means that the light provided is not suitable for learning. After all, lighting is the focus of desk lamps.
02, consistency
In addition to illumination, we should also pay attention to uniformity. Uniformity specifically refers to the ratio of the maximum and minimum illuminance in each lighting area, and it only needs ≤3 to reach the standards of Class A and Class AA. The closer the uniformity is to 1, the more uniform the light source distribution and the higher the eye comfort.
03. Color rendering index
The degree of color that light can present to the illuminated object is generally called color rendering, and the color rendering index is generally expressed by Ra. The color rendering index of sunlight is defined as Ra 100, so the closer the color rendering value is to 100, the more realistic and natural the color rendering effect will be.
90- 100 1A perfect place for accurate color contrast.
80-89 1b/ Where correct color judgment is needed
60-79 2 Generally, places with moderate color development are needed.
04, color temperature
Color temperature is the most common index in the spectral quality of light source, but there are many specific related knowledge, which will be quite complicated if we deeply understand it. We simply need to know that the lower the color temperature, the colder the color, and the higher the color temperature, the warmer the color. Usually, the color temperature of eye protection desk lamps is around 3000K-5000K, and the most suitable color temperature for learning is 4000K, because the color temperature of 4000K is very soft and comfortable compared with the warm white color around 10 in the morning.
05, blue light
Blue light is a kind of high-energy light, which will affect eye health and induce a variety of eye diseases. But we should know clearly that not all light is blue light, and not all blue light is harmful blue light. Harmful blue light refers to blue light with a wavelength in the range of 400-450, so don't be afraid to hear blue light.
In the national standard, it is accurately pointed out that the blue light hazard category of LED light source lamps cannot exceed RG0. In other words, as long as it meets the current reading and writing table lamp standards, you don't have to worry about the blue light problem, but you have to know something about it to facilitate the purchase.
06, stroboscopic
In daily electrical appliances, it is absolutely impossible to be completely strobe-free, whether it is a display or a screen or any lamps, so the so-called "strobe-free" refers to 3 125Hz that meets the industry standard. At present, many people don't have strongpoint's eye protection desk lamps, so it is impossible for the naked eye to tell whether there is strongpoint, but we can use the camera of the mobile phone to make small tests skillfully. If there is serious high-frequency flicker, it means that there may be serious stroboscopic problems. Might as well take out your mobile phone and try it on the light source.
It is recommended to choose eye protection desk lamp.
1, book eye Protection desk lamp pro
Recommended index: √√√√.
Comments: 8 years of professional optical technology, eye protection, really prevent myopia.
Suk desk lamp subverts the traditional concept of eye protection desk lamp, and is also the benchmark product in the industry at present. The core is RRT red eye-catching technology and 15 hard-core black technology, which can effectively prevent myopia! After in-depth testing and recommendation by the professional team "Clove Doctor", it has been highly praised by many ophthalmologists and media, and is known as the "industry benchmark product", and its performance exceeds the national AA standard 1 10%!
A number of well-known foreign research institutions and China Academy of Sciences have found that long-wave red light can delay the occurrence of myopia, and it only takes 3 minutes to receive red light every day to significantly alleviate vision loss. Suk has been specialized in this field for many years, and created RRT red light eye-catching technology, which can accurately eliminate harmful blue light, supplement beneficial red light, improve metabolic ability and enhance eye vitality, thus improving visual sensitivity and protecting eyes.
At the same time, the specially developed Sunbeam fluorescent beads are used, and the light source is built to restore natural light to 99.8%. The combination lamp is not only soft and comfortable, but also can delay eye fatigue by 83% and reduce the risk of myopia by 92%!
The quality of table lamps in the market is uneven, and all kinds of virtual standard parameters and quality do not match frequently. Suk, on the other hand, tests the quality with the "four dimensions" of "eye protection effect test, harsh use environment and extreme use". More than 20 thousand parents and children were invited to participate in the test before it was officially put into the market, and it was adjusted for 763 days before it was put into the market.
In order to provide more comfortable lighting experience for teenagers' eyes, Suker Reader has also made efforts to achieve Ra98 with a color rendering index close to full mark, with PLP photoelectric processor, which makes the light source more stable, conforms to RG0, and has no blue light hazard and no video flash. It also has many functions such as "SDIT adaptive dimming" for dynamic eye protection, 20/45min double timing mode, automatic light switch, backlight design and so on to meet different eye needs.
2, BenQ Mindo desk lamp
Recommended index: √ √.
Comments: The curved light source surface with slightly inclined ends will not have a strong sense of oppression.
MindDuo in BenQ has a unique lamp holder with slightly inclined ends, so the illumination range presents an oval illumination area of 1.2m * 0.9m, which can cover the whole desktop.
In terms of light, the curved light source surface with slightly inclined ends will not have a strong sense of oppression, but can reduce the formation of environmental glare and light spots, while the lampshade of the desk lamp is coated with special ink, which can make the light soft and low glare. The 360-degree spherical joint is used to connect the lamp holder and the lamp post, so there is a controllable range of 360 degrees.
The whole lamp body is made of 90% aluminum alloy, and the wires are also wrapped with non-woven fabrics, so the overall durability is improved. On the other hand, BenQ Mindo didn't design many convenient functions.
3. Panasonic patrol desk lamp
Recommended index: √√√
Comments: 154 LED lamp beads cooperate with large light-emitting surface, and the illuminance meets the requirements of national standard AA.
The best thing about Panasonic tour guide is that it uses 154 LED lamp beads, so it gives people a very bright lighting feeling. Although it is a bright spot, it is also a reason why I don't strongly recommend it, because too bright light is easy to make eyes tired, and it is only suitable for short-term situations that require high concentration.
Intelligent light sensing is a common automatic dimming, which can automatically maintain brightness and keep brightness not too high or too dark. The adjustable angle of the desk lamp is not wide, the lamp pole can swing up and down 120, the lamp head can swing up and down 108, and turn left and right 180.
The base is made of tempered glass, and the materials in other positions are designed by anode sandblasting. It can support functions such as delayed light-off, automatic dimming and nightlight.
4, Mijia Philips reading and writing desk lamp
Recommended index: √√√
Comments: It has double anti-glare design to prevent indirect glare and reflected light.
Mijia Philips reading and writing desk lamp meets the national AA standard, with color rendering index Ra90, warm yellow light with constant color temperature of 3700K, illumination range of about 1.5 m, and overall performance is also good.
The distinctive core configuration is dual anti-glare design. The first is to prevent indirect glare. By optimizing the design of the reflection system, indirect glare can be greatly reduced, and the reflected light brought by writing and desktop can be well filtered. On the other hand, the anti-glare design is directly carried out, and a unique grid is directly added to the light source surface. The grid has a shading angle to ensure that the light will not be affected and the light will not directly illuminate the eyes. Generally speaking, this design is more humanized.
Mijia Philips reading and writing desk lamp does not have intelligent photosensitive function. With the design of rotating shaft, you can rotate in parallel, up and down, left and right directions, and you can also find a suitable angle at any position on the desktop.
5, children's visual treasure VL235B table lamp
Recommended index: √√√
Comments: The light source surface is combined with the ring and emits light at the same time, which ensures sufficient lighting and lighting range.
Children's TV VL235B conforms to the current national standard AA illumination standard, with a color rendering index of Ra95, a color temperature of 3400K, 3650K, 3900K and 4 100K, and an illumination range of about1.2m. The illumination range is not particularly wide, but it can meet individual needs.
The core of children's visual treasure VL235B lies in its rare dual light emission. The light source surface is composed of a surface and a ring, and emits light at the same time. The main luminous surface light source ensures the brightness of light, and the ring light source ensures the diffusion range and softness of diffused light. Support intelligent photosensitive function, which can realize automatic brightness adjustment. The lamp holder and the lamp post can also be adjusted and extended in multiple angles and directions.
The whole desk lamp is made of ABS plastic, which has a strong sense of plastic and is easy to loosen when adjusting. Functions support intelligent light sensing, regular rest, natural sleep, nightlight.