3C products on the market generally use high color temperature backlight components, high color temperature represents high blue light, blue light penetration is strong, and it is harmful to the eyes. Long-term exposure to high blue light environment may cause macular lesions to damage the crystal cells to induce cataract early. Reducing Blu-ray damage has become an option for the majority of low-headed people to protect themselves. This wave of eye protection has stimulated the market to launch a number of low-light Blu-ray apps, which claim to reduce the burden of blue light on the eyes when using 3C products. Recently, Allion has also received many inquiries about low-blue light verification. Start.
In terms of the visible spectrum of the human eye, the normal visible wavelength (Wavelength, in nanometer nm) ranges from 380 to 780 nm, and the blue light is substantially distributed between 420 and 470 nm. 400nm~420nm is called "high-energy light" (HEV). A small amount of blue light can lift the spirit of the eye. However, receiving excessive blue light for a long time is likely to increase the fatigue of the eyes. In severe cases, it may affect the immune system caused by the sleep cycle.
In terms of the spectral distribution characteristics of the light source, different wavelengths will exhibit different color sensations (color temperatures), and the higher the color temperature (hereinafter, the K value represents the color temperature unit), the more blue light (420~470 nm) in the light is represented. For example, the color temperature of an incandescent lamp is about 2700K, and the color temperature of the midday sun is about 6500K. The flat panel and mobile phone used in daily use generally use backlight components with a color temperature of more than 6500K~7000K. In other words, our soul window is long. The time is exposed to high doses of blue light.
Allion is tested by the spectrum analyzer. Is the low blue eye protection app really effective?
Step 1 Verify the two smart phones with the market-known low-light App through the Konica Minolta CS-2000A. Step 2: Start the Blu-ray App (LBL mode) and measure the results from Blu-ray. Analyze the spectral (a) and (b) numerical changes to observe the degree of blue peak reduction to determine whether the App can effectively reduce the blue peak.
From the analyzer to the darkroom environment analysis with a detection distance of 50 cm, from the blue light analysis spectrum (1), it can be known that the blue peak value measured after turning on the low blue light mode is significantly reduced, with the mobile phone 1 and the mobile phone. 2 For example, the peak value of blue light can be reduced by 66.35% to 85.33%.
Next, in order to confirm the attenuation rate of the total blue light amount (Total Blue Energy), the measurement was continued by the Konica Minolta CS-2000A, and the result of the blue light analysis spectrum (II) was that the mobile phone was turned on after the low blue light mode was turned on. 1 and the mobile phone 2 measured the total amount of blue light radiation has a significant reduction of 62.13% ~ 84.18%.
Through the measurement results of the instrument, it is proved that the commercially available smart phone can effectively reduce the damage of the human eye by turning on the LBL mode (low blue mode) to effectively reduce the high-energy blue light of the band 420~470nm. The method of protecting the window of the precious soul is to avoid the long-term exposure to the environment of the cool white light source, and carefully select the 3C product.
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