title: The lens production by Christiaan and Constantijn Huygens.
abstract: Ever since they began to take an interest in lens grinding, the brothers Christiaan and Constantijn Huygens searched for high-quality glass to turn in to lenses. Historical research in combination with optical measurements on preserved lenses has allowed the verification of the lenses ground by the brothers, and also provided information on who helped them with the necessary knowledge and material.
authors.affiliation: Museum Boerhaave, Leiden, The Netherlands.
authors.forename: A C
authors.initials: AC
authors.lastname: Van Helden
authors.forename: R H
authors.initials: RH
authors.lastname: Van Gent
mesh_terms: D001256:Astronomy / Q000266:history; D004864:Equipment and Supplies / Q000266:history; D049670:History, 17th Century; D007909:Lenses; D009426:Netherlands; D055095:Optics and Photonics / Q000266:history*