Photometrie, sive de mensura et gradibus luminis, colorum et umbrae, better known as Photometria, is a book on the measurement of light by Johann Heinrich Lambert published in 1760. 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.
Photometrie, sive de mensura et gradibus luminis, colorum et umbrae, better known as Photometria, is a book on the measurement of light by Johann Heinrich Lambert published in 1760. 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.
Source: Wikipedia "Photometria" · CC BY-SA 4.0
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