A Fresnel lens is a type of condenser lens used in spotlights to gather and focus light rays from a source into a narrow, controlled beam. Its design allows for a powerful, even distribution of light while remaining lightweight and compact compared to traditional lenses.
Fresnel lenses are widely used in photography, stage lighting, and film production to create directional lighting, highlight subjects, and control shadows. Understanding the use of a Fresnel lens helps photographers and cinematographers manipulate light effectively for creative and professional-quality results.