The Edmund Optics® catalog contains lenses whose focal lengths are at least equal to or greater than their diameters. The reason for this is that smaller focal lengths with small diameter lenses create a very curved surface with thin walls, which becomes difficult to manufacture within the specifications Edmund Optics provides for our lenses, namely our TECHSPEC® lenses.
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L'entreprise Edmund Optics GmbH en Allemagne agit comme un mandataire d'Edmund Optics Ltd au Royaume-Uni. Le titulaire du contrat est Edmund Optics Ltd au Royaume-Uni.