<?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">prismatic lenses</topic></authority><related type="broader"><topic>lenses</topic></related><variant type="other"><topic>lenses, prismatic</topic></variant><variant type="other"><topic>prismatic lens</topic></variant> <note xml:lang="en"><![CDATA[ Plastic or glass elements used to change the direction of light by bending or refracting the rays in a specified pattern over an area, achieved by covering the surface of the lens with prisms that are arranged in a pattern designed to achieve the desired effect. ]]></note></mads>