Optics functions in life

Hi,
could you please introduce me anythings thats related to optics items function in life?
books,magazins,movies anything...
even good pictures for understanding...(I mean for example you tell me type this ''''' in google and find those pictures for example)
if no books or ect, but you have information yourself and you'r sure about your knowledge tell me those things that you know...
I want wonderful things about it,intersting functions o even a meaningful exmple for better understanding.
thank you :smile: