A corrugated lens features a series of concentric annular sections carved into its surface, reducing its overall thickness and weight. This design maintains the surface curvature required to bend light without the bulky core of a traditional solid lens. It is widely used in stage lighting and lighthouses where large-diameter, lightweight optics are essential.
The wash fixture uses a corrugated lens to keep the head weight down while still spreading the beam evenly.
Also heard as
- stepped lens
Do not mix it up with
- Fresnel: A Fresnel is a specific, highly engineered type of corrugated lens, though the terms are often used interchangeably in the shop.
Related terms
Fresnel
A soft-edged spotlight with a stepped Fresnel lens whose beam can be adjusted from spot to flood.
Lens
A shaped piece of transparent material designed to bend and focus light rays.
Luminaire
The whole light fixture as one product: light source, optics, housing, driver or ballast and power connection.