The Fresnel lens used glass prisms and a powerful magnifying glass to refract (bend) the light of a single lamp into an intense beam.
(The Fresnel lens; used; glass prisms and a powerful magnifying glass; to refract (bend) the light of a single lamp into an intense beam)
The Fresnel lens
used
glass prisms and a powerful magnifying glass to refract (bend) the light of a single lamp into an intense beam