🌐 What Is Blue Light?
Blue light is emitted from sunlight, artificial lighting, and digital devices—it’s everywhere in our daily lives.
It refers to short-wavelength visible light ranging from 380 to 500 nm, which the human eye perceives as bright and often glaring.
Due to its short wavelength, blue light scatters easily when it interacts with dust or moisture in the atmosphere.
This scattering causes the eye to perceive glare and flickering, especially under intense or concentrated exposure.
💡 Characteristics of LED Light
LEDs—used in lighting, televisions, and more—are widely adopted for their energy-saving efficiency, making them common in offices and homes.
However, LED lights contain a high amount of blue light to enhance brightness.
In addition, LED lighting often appears harsher and more glaring than traditional bulbs because the light is more concentrated and directly projected, causing discomfort for many users.