1. Plural of fresnel; a type of lens or lighting fixture with concentric grooves, used in theaters, film production, and stage lighting to focus and direct light.
Usage: theater/film terminology; often used in plural form

Examples

• The stage crew positioned several fresnels above the actors to create dramatic shadows.
• Fresnels are essential equipment in any professional theater lighting setup.
• The director requested more fresnels to brighten the back of the stage.
• Film sets typically use a combination of fresnels and other lighting instruments.
• The fresnel's grooved lens design makes it more efficient than traditional spotlights.