prism optical rainbow spectrum light ray

angle artwork background band basic beam beams beautiful bright change clear color colors colour colourful colours concept crystal divided dramatic effect element emit emitting flare flint glass idea illuminate illustration image incident intense isolate isolated light lights metaphor object optical perfect phenomenon physics principal prism pure rainbow ray rays realistic reflect reflection reflective refract refractive render rendering scientific shine shiny source spectrum split spread spreading strong symbolic theory transform transparent triangle triangular vibrant visible visual wave white