Book "Photometria"

"Photometria," written by Johann Heinrich Lambert in 1760, is a foundational work in the science of measuring light and brightness. It explores how light behaves, how to quantify its intensity, and how perception relates to actual luminance. The book introduces key concepts such as luminous flux, brightness, and the mathematical principles behind light measurement, establishing the basis for fields like photometry and radiometry. Lambert's work helps us understand how to accurately compare and quantify light sources, forming the scientific foundation for lighting, vision, and imaging technologies used today.