Most 3C products currently on the market use high color temperature backlight components. High color temperature means a higher concentration of blue light, which can penetrate more deeply and is potentially harmful to the eyes. Prolonged exposure to environments with high levels of blue light may lead to damage to the macula, harm to retinal cells, and even contribute to early-onset cataracts. As a result, reducing blue light exposure has become an important concern for many people who spend long hours looking at screens. This growing awareness of eye protection has led to the development of various low-blue-light apps designed to reduce the strain on the eyes when using electronic devices. Blue light falls within the visible spectrum, typically between 420nm and 470nm. The range from 400nm to 420nm is considered "high-energy visible light" (HEV), and while a small amount of blue light can help improve alertness, excessive exposure over time may cause eye fatigue and disrupt sleep patterns by affecting the body’s natural circadian rhythm. In terms of light source characteristics, different wavelengths produce different color temperatures. Higher color temperatures (measured in Kelvin) correspond to a greater proportion of blue light. For example, incandescent bulbs have a color temperature of around 2700K, while daylight at midday reaches about 6500K. Most smartphones and tablets use backlights with color temperatures above 6500K—meaning that our eyes are often exposed to high levels of blue light for extended periods. How effective are low-blue-light apps? Allion tested them using a spectrometer. Step 1: Two popular smartphones with well-known low-blue-light apps were tested using the Konica Minolta CS-2000A. Step 2: The blue light app (LBL mode) was activated, and the results were measured. The spectral data was analyzed to observe the reduction in blue peak intensity, helping determine whether the app actually lowers blue light output. After conducting measurements in a controlled darkroom environment at a distance of 50 cm, the blue light analysis spectrum showed that activating the low-blue-light mode significantly reduced the blue peak. For instance, mobile phone 1 and 2 saw reductions of up to 66.35% to 85.33% in their blue light peak values. To further evaluate the overall reduction in blue light exposure, the measurement continued using the same device. The second blue light analysis spectrum revealed that the total blue light radiation after enabling the low-blue-light mode was reduced by as much as 62.13% to 84.18% across both devices. These test results confirm that low-blue-light modes on commercial smartphones can effectively reduce the harmful effects of high-energy blue light (420–470nm) on the eyes. Protecting your eyes doesn’t just mean avoiding long-term exposure to cool white light sources—it also involves making informed choices when selecting 3C products to support better visual health. Chamber Cold And Thermal Shock Test Chamber Chamber Cold And Thermal Shock Test Chamber,Cold Thermal Shock Test Machine,Battery Thermal Shock Test Chamber,Thermal Performance Testing Test Chamber Wuxi Juxingyao Trading Co., Ltd , https://www.juxingyao.com