Fresnel lenses has a major advantage in that they are very thin (1) in contrast to normal lenses (2). This is very beneficial when trying to make compact VR glasses which is why they have become the norm over the last few years. The downside however is how light gathers at the sharp edges and how 'god rays' seemingly radiate outwards from the lenses.
Sony has a patent from 2020 however where they seem to be coating these sharp edges with a light absorbing material of some kind:
RoadToVR states that the "PSVR2 might be the first headset to truly address the problem."
There's a good deal more in the article including alternative ways of doing light absorption (embedded inside lenses) that's also part of the patent:
www.roadtovr.com
Sony has a patent from 2020 however where they seem to be coating these sharp edges with a light absorbing material of some kind:
RoadToVR states that the "PSVR2 might be the first headset to truly address the problem."
There's a good deal more in the article including alternative ways of doing light absorption (embedded inside lenses) that's also part of the patent:
A Sony Patent Could Bring Next-gen Fresnel Lenses to PSVR 2
We learned last week that PSVR 2 will use Fresnel lenses, which have a range of advantages over traditional lenses, but also come with a big downside: god rays. However, Sony may have a trick up its sleeve that could give the headset’s Fresnel lenses a big advantage over the competition. As we...
www.roadtovr.com
