<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">lenses</topic></authority><related type="narrower"><topic>photographic lenses</topic></related><related type="narrower"><topic>apochromats</topic></related><related type="narrower"><topic>magnifiers</topic></related><related type="narrower"><topic>water lenses</topic></related><related type="narrower"><topic>prismatic lenses</topic></related><related type="narrower"><topic>Fresnel lenses</topic></related><related type="narrower"><topic>polycapillary lenses</topic></related><related type="other"><topic>bellows</topic></related><related type="broader"><topic>components by general context</topic></related><related type="broader"><topic>object genres by form</topic></related><variant type="other"><topic>lens</topic></variant><variant type="other"><topic>lense</topic></variant> <note xml:lang="en"><![CDATA[ Pieces of glass, crystal, plastic, or other transparent substance characterized by having two curved surfaces or one plane and one curved surface, serving to cause regular convergence or divergence of the rays of light passing through it. Lenses may be components of a larger object or objects in themselves. They are used for magnifying vision in eyeglasses, binoculars, telescopes, microscopes, cameras, and for directing or magnifying light in lighting devices such as flashlights or lighthouses. ]]></note></mads>