High-power LEDs emit
a very intense, directional light. So that people are not dazzled
by this, the diodes, like other direct light sources, ensure good glare protaction. Diffusers serve this purpose. They distribute the light from LEDs evenly, for example with frosted glass. This reduces luminance and glare.
In nature, the very intense light from the sun harbors another danger: the damage to the retina caused by blue light (blue light hazzard). This damage can occur when looking directly into the sun. Suitable sunglasses protect against the intensive light in the blue sprectral range. Children are particularly at risk because their lenses are still very clear and hardly filter out harmful light components.
No danger by blue light
The LED does not pose a risk of blue light damage when used correctly. On the four-level risk scale of the IEC 62471 standard, the sun reaches level three (high risk).Most LEDs are classified at level zero to one (low risk). Some LEDs reach level two. At this level, the natural reflexes of human beings ( closing eyelids, averting gaze) offer sufficient protection.