Michael Abrash - Fresnel fail and Pancake lenses with 200 FOV

Pimax 8K Series
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Michael Abrash.jpg1275×702 76.5 KB

Pancake lenses with 200 FOV.

Fresnel lenses with 140 FOV maximum.

Interesting

Cheers,
Neo

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I am thinking that pima x can sale premium lenses to swap with the current lenses or not, may not difficult to swap because has another mirror before display and don’t want worry about dust.

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Very interesting.

Cheers,
Neo

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I think a lens swap option would be really cool as like an upgrade option in 1 or 2 years when pimax gets access to new tech or their R&D team figures some stuff out. But I just don’t think its that simple to plug and play this kind of equipment.
But hey if they give us the option to pay X to ‘upgrade’ the HMD in 1-3 years that’d be pretty cool :stuck_out_tongue:

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Isn’t there a ton of other changes that have to be made in how it renders?
Or are you saying that with a simple lens swap and a software update that we could end up having a totally different lens system.?

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Very very interesting.

Cheers,
Neo

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If it was so easy to swap out ‘better’ lenses why hasn’t pimax done this yet?
Is the limitation cost? Or are there other negatives that havent been considered yet.
If we all simply swap out our lenses once getting our hmd, why did pimax bother with the cost of whatever solution they came up with.
Sorry if those questions have no answers… just curious as you make it sound too easy to get immediate benefit.

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Too interesting.

Cheers,
Neo

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Or maybe fire up a new ks project - The Quest for Perfect Lens

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@Sean.Huang @PimaxVR @Pimax-Support @deletedpimaxrep1

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Squishing ghe whole 8k panel into a 140 fov sounds like a near real image to :slightly_smiling_face:

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@Sean.Huang you guys have the opportunity to crush the whole VR market right now

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Have you said too much? haha

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Why are you mentioning them…? I don’t get what’s the point of this thread lol

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Interesting that Abrash should say that you can only use Fresnel up to 140° - isn’t StarVR using Fresnel lenses with a pair of angled displays just like Pimax is ? And they have reportedly nailed it (possibly only with very expensive Fresnel lenses, but Fresnel lenses nevertheless, for all we know).

So I would take this with a grain of salt… :wink:

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I don’t either. Maybe it is Abrash saying that wide FOV is not possible unless you use them (not all true) and I assume he is talking about the distortion issue with outer Fresnel ridges. You would still have a weight issue if you tried to use pancake lenses the size of the pimax ones as the HMD would be twice as heavy. a 5CM one is about 400g on its own so as a wild assumption two large Pimax VR ones would be over 1,000 grams.

Maybe that he was firing a little veiled arrow at Pimax and StarVR :slight_smile:

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I don’t like oculus’ “safe” approach. No wireless because compression, no real eye tracking until 22 (that late my ass), barely any FOV increases and res increases…it’s either 100% perfect or they don’t do it. (Even though the rift has wayyy too many imperfections so all I just said doesn’t make any sense)

Oh yeah it does, it’s cause they care more about vr reaching to the masses and becoming more mainstream. So thank god we have pimax who are the opposite lmao

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They are working on silicone ones somewhere. No diffraction but they are a wee while away

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How about those nano lenses? Nano structures to bend light to emulate a lens effect?

http://science.sciencemag.org/content/352/6290/1190

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Well, you can witness the same kind of different opinions in this very forum.
You have one fraction expecting perfection (within the offered specs, that is), everything needs to be flawless, or they will get very vocal and very persistent in trying to talk about the imperfections all the time.
And you have the other camp, who just want a device to replace what they are using today, and who just care about the overall experience in sum. So if it is substantially better in say 5 aspects, but therefore is worse in 1 and introduces a new issue which wasn’t there before, they will still look at the package and check, which one is more fun to use day in day out, and will be happy if they get such a device.

So camp 1 will be sticking to low resolution, limited FoV headsets as long as it takes to get flawless greater resolution, wider FoV headsets and the camp 2 will go with the higher resolution, greater FoV headsets.

It seems the camp 1 wouldn’t be able to not stare at the imperfections they carefully drew their attention to time and again, while the others will note them, then ignore them.

I guess you are either the one or the other, and cannot really help it.

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