Chérubin binocular telescope-CnAM 12811-IMG 6439-white

Chérubin d'Orléans (1613-1697) was a French scientific instrument maker.

Biography

A Capucin father and distinguished physicist, Chérubin d'Orléans (François Lasséré) devoted himself to the study of

optics Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultra ...

and to vision-related problems, which he discussed in ''La dioptrique oculaire and La vision parfaite'' (

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. ...

, 1671 and 1677 respectively). He developed a binocular telescope and he devised and may also have built a special type of eyepiece that replaced the lens with a short tube. Chérubin is also credited with producing models of the eyeball for studying the lens function of the

eye Eyes are organs of the visual system. They provide living organisms with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and conv ...

. He also invented the stereo microscope, also called the dissecting microscope.

Works

References

Museo Galileo Museo Galileo, the former ''Istituto e Museo di Storia della Scienza'' (Institute and Museum of the History of Science) is located in Florence, Italy, in Piazza dei Giudici, along the River Arno and close to the Uffizi Gallery. The museum, dedicate ...

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Chérubin d'Orléans
. Catalog of the Museo Galileo's Instruments on Display. ''catalog .museogalileo.it'' {{DEFAULTSORT:Cherubin d'Orleans French scientific instrument makers