2023年4月24日 · Blue light, like other colors of visible light, is all around you. The sun emits blue light. So do fluorescent and incandescent light bulbs. Human beings are exposed to more blue light than...

2024年2月12日 · Blue light is located in a narrow band near an outer edge of the visible spectrum, with wavelengths close to those of ultraviolet light. Blue light triggers your eyes to react, especially...

2024年7月24日 · What is blue light? The effect blue light has on your sleep and more. Although it is environmentally friendly, blue light can affect your sleep and potentially cause disease. Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness.

2024年12月30日 · Blue light from electronics is linked to problems like blurry vision, eyestrain, dry eye, macular degeneration, and cataracts. Some people have sleep issues. Here’s what you need...

2022年8月3日 · Blue light can harm your eyes, sleep and physical health. Here, experts explain what blue light is, how it affects us and tips for limiting your exposure.

2021年3月10日 · When you stare at a screen for hours at a time, whether it is a computer, TV, phone or tablet, you are exposed to blue light from the device. Alarmist headlines claim blue light from too much screen time is blinding us. But there is no scientific evidence that blue light from digital devices causes damage to your eye.

2022年8月3日 · Blue light is part of the visible light spectrum – what the human eye can see. Vibrating within the 380 to 500 nanometer range, it has the shortest wavelength and highest energy. About one-third of all visible light is considered blue …

2023年4月13日 · You’ve heard of blue light, but what is it? Read about its benefits and risks, as well as whether blue-light-blocking glasses and night mode work to reduce your exposure.

2024年1月12日 · Blue light is a wavelength of light often emitted by electronic devices and artificial lights. During the day, blue light influences your circadian rhythm, affecting alertness and heart rate. Limiting blue light at night can help mitigate its effects on sleep.

2023年6月9日 · Blue light generally is defined as visible light ranging from 380 to 500 nm. Blue light sometimes is further broken down into higher energy blue-violet light (roughly 380 to 450 nm) and lower energy blue-turquoise light (roughly 450 to 500 nm). So, about one-third of all visible light is considered high-energy visible (HEV) or “blue” light.