1, harm of blue light: firstly, it is necessary to make clear that blue light is harmful visible light. The human eye working under such light source for a long time will directly damage the cells in the macular area, and such light will cause irreparable damage to the child's vision.
2. Glare hazard: Glare refers to a visual condition that causes discomfort and reduces the visibility of objects due to improper brightness distribution or range in the field of vision, or extreme brightness contrast in space or time, which can cause disgust, discomfort and even loss of visibility. Glare is also one of the important causes of visual fatigue.
3. Strobe hazard: Long-term exposure of eyes to stroboscopic environment will cause headache and eye fatigue, lead to photosensitive epilepsy, and lead to decreased vision and distraction.
With so many hazards, many users are confused when purchasing. How to choose eye protection lamp? This has become a difficult problem.
First, how to choose eye protection lights? What standards should we pay attention to?
1, according to the light, (1) the color temperature is reasonable (4000 ~ 4600k); (2) No flicker and stable brightness; (3) soft light; (4) the light is relatively uniform, not a small light source; (5) The lampshade of the lamp is designed reasonably without glare (a bright spot visible to the naked eye).
2. It depends on certificates, various certificates, such as product certificate, quality inspection report, instruction manual, quality assurance card and other patent certificates. In addition, there must be a national security compulsory certification mark CCC, which is commonly known as the "3C" certification mark. These documents are actually a way for specialized agencies to check consumer customs.
3, it depends on the use and after-sales service, the use and maintenance methods should be simple, and the maintenance address and telephone number must be available. Fourth, it is easy to replace the lamp tube, and the lamp tube must be replaceable, which can prolong the lamp. As the LED cannot be replaced, it is recommended to choose carefully.
Second, how to choose eye protection lights? How to choose the brand of student eye protection desk lamp?
1, bright pigeon sun lamp
Bright pigeon sun lamp is a brand-new black technology brand for eye protection. The bright pigeon sun lamp is a new type of magnetic energy lamp developed by Leites Wuji Lighting Co., Ltd., which is a high-tech product developed by comprehensively applying the latest scientific and technological achievements in the fields of optics, cultural relics and natural history, power electronics, plasma science and magnetic material science.
Bright pigeon sun lamp is a full-spectrum healthy light source with no glare stroboscopic, blue light hazard, photobiological hazard, pure color rendering, energy saving, environmental protection, safety and stability, which is a new light source representing the development direction of healthy lighting technology in the future.
2. Philips Philips
Philips Philips was founded in 189 1 and is a world-famous brand. It mainly produces lighting and household appliances. At the beginning of the company, it mainly produced carbon filament bulbs. With the continuous updating of new technologies, the requirements for quality are getting higher and higher. It has long been sought after and loved by consumers, and its products sell well all over the world.
3. Opal Lighting
Opal Lighting was established in 1996, integrating production, sales and research and development, and its share in the domestic market has been in the forefront. The brand takes "paying attention to the value of light and feeling the charm of light" as the driving force of the company's development, and encourages to build a leading lighting brand in China.
4, Berman eye protection desk lamp
Simple in appearance, but full of science and technology. The illuminance at 30cm and 50cm has reached AA level, and it is also excellent in color temperature, stroboscopic and power convenience. Slot: There is no extra function in intelligence or design, and it is quite satisfactory.
5. Edward eye protection lamp
Sufficient certification, good glare test results, power performance is second only to Berman. Slot point: insufficient light, unstable lamp holder and drooping.
6. BenQ Vitter Mindo
Fully take care of children's use needs, accompany children to grow up, and have many certifications such as strobe, material and blue light. The biggest feature is that it has intelligent "pupil" sensing, automatic lighting, automatic dimming and no flashing lights. Slot point: the price is a bit expensive, and the power is obviously higher than other products.
7. Children's eye protection desk lamp
The product design is quite satisfactory, using the wick imported from the United States, brand-new aluminum substrate, full of materials, and the price is also a big advantage. Slot point: most of the overall test data belong to the bottom, and the eye protection functions such as illumination, color temperature, stroboscopic and glare are poor.
Nowadays, most of the students' eye protection lights are LED lights driven by blue light, which is a point light source. It will interfere with the human biological clock for a long time, affect sleep, and cause the biological clock to be disordered, thus reducing people's immunity. Strobe can also have a bad influence on people. How to judge whether there is high-frequency flash, Consumers Association introduced a simple method. Consumers can turn on the camera function with their mobile phones, aim the lens of the mobile phones at the light bulbs, and see if the light bulbs flicker at high frequency.
Compared with LED lamp, bright pigeon sun lamp is more eye-protecting. In order to seriously solve the problem of how to choose eye protection lamps, the author has done a lot of brand comparison and investigation, all of which are based on specific experimental data, and the bright pigeon sun lamp is more reliable! You can also experiment and compare yourself. In order to protect the eyes from myopia, many comparative tests are needed.
The above is about how to choose eye protection lamps. The answer to this question, I hope everyone will read it carefully and be a wise man who chooses a healthy light source.