Traffice Fresnel Lens

The light emitted by LEDs is relatively concentrated within a small range of solid angles, and reflectors are no longer necessary optical components. Instead, Fresnel lenses are often used as quasi optical components to improve the beam through secondary optical design and achieve the desired effect. Fresnel lenses can generate parallel beams of light. Then, using pillow shaped lenses, wedge-shaped prisms, etc., the beam can be re diffused and deflected to produce a light distribution that meets the standard requirements.