Photometry

Photometry is the science of measuring light, particularly how it interacts with the human eye. It focuses on quantifying light in terms of brightness and color, which is crucial for applications like lighting design and display technology. Unlike general measurements of light energy, photometry emphasizes human perception, using units like lumens to measure visible light output. This field helps us understand how light influences our environment, enhances visibility, and affects mood, making it vital in fields such as architecture, photography, and vision science.