Focusing lensCanonLegendsInfinitiesA focusing lens was a component of lightsabers that was mounted just below the blade emitter. Sources The Star Wars BookAppearancesThe High Republic: A Test of Courage (Unknown)Unknown UnknownNoneThe High Republic: A Test of Courage audiobook (Unknown)Unknown UnknownNoneThe High Republic Adventures (2021) 4 (Unknown)Unknown UnknownNoneThe High Republic: The Rising Storm (Unknown)Unknown UnknownNoneThe High Republic: The Rising Storm audiobook (Unknown)Unknown UnknownNoneThe Rebellion Begins (First identified as Focusing lens) (Unknown)Unknown UnknownNoneStar Wars (2020) 35 (Unknown)Unknown UnknownNone