In recent years, the world of optics has undergone a major shift. New research shows how light can be bent, focused, and even ...

Animals with ultraviolet color patterns can be found all over nature. Here’s what we know about what purpose these patterns serve.

While this is good advice, it turns out that some colors of light may disrupt your sleep more than others. Melatonin is a hormone that largely controls your body’s natural sleep-wake cycles.

How accurately a given light source portrays color is measured on the Color Rendering Index (CRI). This scale, ranging from 0 to 100, uses natural light as its benchmark for the most accurate ...