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Jul 7, 2020 · July 7, 2020. 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.
Aug 3, 2022 · What is blue light? 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 light. Sunlight is the biggest source of blue light.
Mar 10, 2021 · Blue light exposure from screens is much less than the amount of exposure from the sun. It's also no more damaging than blue light from the sun, Dr. Khurana says. Too much exposure to ultraviolet light from the sun increases the risks of eye diseases, including cataracts, growths on the eye and cancer.
Apr 13, 2023 · 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.
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Feb 27, 2019 · 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.
Feb 21, 2024 · What Is Blue Light? Blue light is part of the visible light spectrum. This is what the human eye can see. Blue light vibrates within the 380 to 500-nanometer range. It has the shortest wavelength and the highest energy of visible light. 1. Around one-third of visible light is considered high-energy visible or blue light.
Apr 20, 2021 · Blue light is a shorter-wavelength colored light found in everything from traditional light bulbs to computer and smartphone screens. Blue light is good for your body during the day, but at...
