Optic studies of Roger Bacon, O.F.M. (c. A.D. 1214–1294).
Roger Bacon (c. 1214–1294) – Franciscan friar, made significant contributions to mathematics and optics, has been described as a forerunner of modern scientific method
Roger Bacon's circular diagrams relating to the scientific study of optics
Roger Bacon's circular diagrams relating to the scientific study of optics. By Roger Bacon also Saint Germaine, late 13th Century.
From Roger Bacon's "De multiplicatione specierum" - optical diagram based on Alhazen's Book of Optics.
Roger Bacon in His Observatory at Merton College, Oxford. Ernest Board, ca. 1912
Andreas Friedrich. Emblemata Nova. 1617.
Medieval philosophy did not encourage scientific endeavor, but a few scholars, such as Roger Bacon, did important experimental work in optics and other fields.