VR Lens Basics: Present And Future

[Guest]

A primer on VR and lenses and how they relate. And a peek at what may be coming next.

VR Lens Basics: Present And Future : Read more

 

[Sakkura]

The Oculus Rift doesn't just use a Fresnel lens, it uses a regular lens and a Fresnel lens fused together into a single hybrid lens.

 

[KD_Gaming]

Which technically means it still uses a Fresnel lens

 

[Sakkura]

Which technically means it still uses a Fresnel lens

The article goes on to state how just a single Fresnel lens on its own has drawbacks, so it's worth making the distinction.

 

[proofvrlab]

Google's new Daydream view switched to Fresnel lenses, big improvement in FOV, clarity and larger sweetspot. Unfortunately they exhibit very noticeable artifact (godrays) evident in high contrast scenes and many YouTube VR/360 videos.

Switching from 'old' Daydream view to 'new' Daydream view demonstrates this phenomenon...tricky to solve. And the artifact are very different to Vive and Rift as they have their own characteristics due to lens design.

 

[wifiburger]

so nice of you to highlight a huge flaw in those VR headset ! the garbage lens they use !
a good lense alone is more then the VR headset

 

[DerekA_C]

then they should make holographic head unites not like Microsoft but actual projections within the head unit since the head unites are pretty big there is room for it particularly in a hmd like pimax that thing is monstrous.

 

[proofvrlab]

@wifiburger.

I'd prefer non Fresnel lenses, the extra weight of an HMD using thicker regular lens can be easily offset by a HMD harness design which puts a balanced weight load onto the skull (Sony PSVR) rather than strapping against the cheekbones and orbits (Vive/Rift/Daydream).

 

[bit_user]

then they should make holographic head unites not like Microsoft but actual projections within the head unit

Lightfield displays are pretty much the ultimate, and what can be casually considered a holographic display. Magic Leap has burned through nearly $2B developing & refining the technology.

https://www.technologyreview.com/s/609821/magic-leap-says-it-will-release-its-ar-headset-next-year/

These types of displays aren't new. They're just really expensive, and take tremendous amounts of compute power to drive.