A Fresnel lens is an optical component used as an alternative to a conventional lens due to it being thinner, lighter and more cost-effective.
A Fresnel lens is made of several concentric grooves embossed into a substrate, such as a polymer. Due to their characteristics, this type of lens can focus the light, similar to a conventional lens while being physically narrow in profile.
In virtual reality (VR) technology, they are used in head-mounted displays (HMDs), mainly those in the high-end of the spectrum, where weight, thickness, and cost are essential parameters to take into account.
TC TECH has completed successful trials with making Fresnel lenses for VR applications.