Fresnel Lens Sheet - For example, when used with detectors, the grooved side should face away from the detector. Web edmund optics offers a variety of fresnel lenses designed for visible or infrared applications. Web } fresnel lenses are composed of a series of concentric grooves etched into one side of a sheet of plastic. Fresnel lenses are unlike typical spherical or aspherical optical lenses. For maximum performance, the grooved side of a fresnel lens should face the longer conjugate.
For maximum performance, the grooved side of a fresnel lens should face the longer conjugate. Web } fresnel lenses are composed of a series of concentric grooves etched into one side of a sheet of plastic. For example, when used with detectors, the grooved side should face away from the detector. Web edmund optics offers a variety of fresnel lenses designed for visible or infrared applications. Fresnel lenses are unlike typical spherical or aspherical optical lenses.