Blue light emitted by mobile devices typically falls within the visible light spectrum, which ranges from approximately 400 to 700 nanometers (nm). This range includes various colors of light, including blue light.
In our surroundings, light is a combination of different wavelengths from various sources, including natural light from the sun, artificial lighting, and ambient light. These sources can emit light across the entire visible spectrum, including blue light.
However, it's important to note that the intensity and spectral composition of blue light emitted by mobile devices may differ from the ambient light in our surroundings. Mobile screens often emit a higher proportion of blue light compared to natural light sources, which can affect our exposure to blue light.
Excessive exposure to blue light, particularly in the evening or nighttime, can potentially disrupt our sleep patterns and cause eye strain. It's advisable to manage our exposure to blue light by using features like night mode or blue light filters on our mobile devices, as well as taking breaks and practicing good screen habits to minimize potential adverse effects.