Chérubin of Orleans (French: Chérubin d'Orleans), born François or Michel Lasseré, was a French monk of the Order of the Friars Minor Capuchin, physicist, and optical instrument maker.
Cherubin was engaged in the study of optics and problems related to vision. He designed the first binocular telescope, as well as a special type of spectacle in which the lens was replaced by a short perforated tube. Many of his binoculars, binocular microscopes and telescopes survive today. Cheruben is also credited with modeling the eyeball to study the functioning of the ocular lens.
About his research and work, Cherubin of Orléans published in Paris the works La dioptrique oculaire (Dioptrique oculaire, 1671) and La vision parfaite (Perfect Vision, 1677).
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