Photometria is a book on the measurement of light by Johann Heinrich Lambert published in 1760.[1] It established a complete system of photometric quantities and principles; using them to measure the optical properties of materials, quantify aspects of vision, and calculate illumination.
- ^ Lambert, Johann Heinrich, Photometria, sive de mensura et gradibus luminis, colorum et umbrae, Augsburg: Eberhard Klett, 1760.