<?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="https://confrides.cpd.ua.es/tematres/vocab/">Óptica - Instrumentos</topic></authority><related type="other"><topic>Astronomía - Instrumentos</topic></related><related type="other"><topic>Espejos</topic></related><related type="other"><topic>Lentes</topic></related><related type="other"><topic>Microscopios y microscopia</topic></related><related type="broader"><topic>Área 3. Óptica instrumental</topic></related><variant type="other"><topic>Óptica instrumental</topic></variant><variant type="other"><topic>Instrumentos de óptica</topic></variant><variant type="other"><topic>Aberración cromática y esférica</topic></variant> <note xml:lang="">Bajo nombres de diferentes instrumentos de óptica. </note> <note type="history" xml:lang="">Se puede usar con un subencabezamiento geográfico. </note> <note type="source" xml:lang="">681.78 </note></mads>