illuminator

il.lu.mi.na.tor

n.（名词）
One that illuminates, especially a device for producing, concentrating, or reflecting light.
照明者，照明器：照明的仪器，特别是指一种产生、集中或反射光亮的装置
One who illuminates manuscripts or other objects.
解释者：解释文体或其它对象的人