DK2 adjustable focus lenses

"ElectricMucus" wrote:

"rupy" wrote:

"ElectricMucus" wrote:
I don't get what's the deal, but then I only have -1.0 diopters.
The burning suspicion I have it won't make much of a difference even if you are quite near sighted, since the DK2s angular resolution isn't high enough.

Do you have the same vision on both eyes?

The problem is when your sight differs between the eyes, it's like you have a permanent rendering bug.

Yes, -1.0 for both eyes.

I fairly often lose one contact lens and when it happens it it's barely noticeable in day to day life, it's just a little less comfortable but preferable to running around without eyesight correction. I don't see an issue with DK2 here.

As angular resolution goes up the amount of different available lenses should simply go up.
Regular glasses and contact lenses come in 0.25 diopter increments, I would estimate to need 4320p resolution to have a benefit from that. So for DK2 2 diopter increments should suffice.
For CK1 perhaps 1 diopter increments, just to be on the safe side. It wouldn't hurt to go straight to the eye correction standard of 0.25 but I don't see how it would be necessary.

Having 0.25 diopters can give me control over the amount of image blur to reduce the pixilation and the window screen grid effect that the eye sees. As I mentioned earlier in the thread the slight blur gives what seems to be a more bearable image. I found using a little circular guassan blur on a low pixel photo can give a slightly higher quality effect on the photo when the pixels are increased. I find it reduces annoying effects like broken diagonal lines similar to that of multisample anti aliasing. The slight circular lens blur merges the pixels a little creating a fifth pixel between four pixels therefore theoretically increasing the total amount of pixels.

So the DK2 would benefit from having 0.25 diopters. but I'm sure the reverse DSLR prime lens thing would be a better option for the CK1. I would show you on my camera by what I mean by the all range focus reverse DSLR lens trick but my camera doesn't show what I'm seeing. I'll try to film it again hopefully with some usable results.

"jpaws1" wrote:
Having 0.25 diopters can give me control over the amount of image blur to reduce the pixilation and the window screen grid effect that the eye sees. As I mentioned earlier in the thread the slight blur gives what seems to be a more bearable image. I found using a little circular guassan blur on a low pixel photo can give a slightly higher quality effect on the photo when the pixels are increased. I find it reduces annoying effects like broken diagonal lines similar to that of multisample anti aliasing. The slight circular lens blur merges the pixels a little creating a fifth pixel between four pixels therefore theoretically increasing the total amount of pixels.

I haven't thought about that!
This could probably work since the Rift is tuned to focus the screen onto "infinity". But if we tune the focus to beyond infinity (the rays no longer are parallel but diverge). The eye would still focus on distance but since it can't do more than that the image should start to blur.

"ElectricMucus" wrote:

Yes, -1.0 for both eyes.

Then you get rid of the grid door, lucky VR vision.

For me 0.5 difference was really bad, specially since one eye had perfect vision and could see the pixels.

If I had -0.25 and -0.75 that might have been fine!

I have the same solution as billyd but cheaper planned for DK2, we'll see how it pans out...

Personal adaptability remains a very critical issue for commercial success. Any / Every customer must be able to quickly and precisely must be able to customize the fit of the O.R. to their face!

Re: IPD Measuring Website -Possible Alternative Design
Post by Wingrider » Tue Oct 15, 2013 8:03 am

I think I may have a simple solution to the Inter-pupillary Distance and focus issues of the OR. As a professional mariner,
I've used Binoculars throughout my career, With or without glasses the binocular is very easy to use by anyone, at any time with only simple, personal adjustment of the IPD and focus.

Most every Binoculars uses an adjustment knob centered on the device for the user to adjust the binocular view to their specific IPD. Each lens also has a separate and simple "Eye Focus Adjustment capability.

The binocular lens or eyepiece has a soft rubber Boot attached around each eye piece, in the normal (no Glasses position) the rubber boot is pressed lightly to the users eye lids and keeps their eyelashes off the lens'.

For those of us that must wear eye glasses, the user folds in the soft rubber boot allowing the wearers glasses lens to focus closer to the binocular eyepiece.

Having only used my OR a few minutes, I thought it needed this type of IPD focusing mechanism to make it user friendly for everyone.

Oculus just needs to team up with Zenni Optical to stock eye cups and produce lenses with specific prescriptions for individuals. Zenni could probably do it for $12 USD (that's how much my glasses actually cost, through them)

"cybereality" wrote:
It's technically possible, but didn't make sense to include into DK2 (it adds complexity). It works by basically changing the distance between the lens and the screen (which is what the different eye-cups do, they all have the same lens in them). Because of this, it creates moving parts that complicate the design and didn't make it into DK2. I would like adjustable optics, and will bug the team to put this into the consumer version.

+1

"billyd" wrote:
Cyberreality,

Yes I've used eyeglasses with the Rift and ruined them. The A cup lenses scratched the heck out of my eyeglasses and they had to be replaced. Fortunately they were new and they got covered under warranty.

If you are wearing glasses in the DK1, you must adjust it to give more room between your glasses and the Rift lenses. If you do so, then it won't scratch your glasses, as they won't be touching the lenses.

"cybereality" wrote:
It's technically possible, but didn't make sense to include into DK2 (it adds complexity). It works by basically changing the distance between the lens and the screen (which is what the different eye-cups do, they all have the same lens in them). Because of this, it creates moving parts that complicate the design and didn't make it into DK2. I would like adjustable optics, and will bug the team to put this into the consumer version.

Why not just make the entire lense mount screw in?

Current design on DK1 is to have this tabbed lock-in mechanism, but if you just use a threaded mount you could change the distance depending on how much you twist the lens housing into its socket.

Before I even used the DK1 I found myself searching everywhere for answers pertaining to people that required glasses. My vision is not the best, yet I manage to only need them when using a computer, or reading. I'm not fond of glasses, and often find myself not using them even when I should. The weirdest/greatest thing that happened when I finally got to use the DK1; I didn't need my glasses. I don't fully know why, but using the C cup lenses it was as if my vision was just fine. I tried my hardest to make it blurry, but it was fine. Quite a shock to say the least. :geek:

"Dreamwriter" wrote:

"billyd" wrote:
Cyberreality,

Yes I've used eyeglasses with the Rift and ruined them. The A cup lenses scratched the heck out of my eyeglasses and they had to be replaced. Fortunately they were new and they got covered under warranty.

If you are wearing glasses in the DK1, you must adjust it to give more room between your glasses and the Rift lenses. If you do so, then it won't scratch your glasses, as they won't be touching the lenses.

Do you think I have the IQ of a fern? The glasses rubbed against the A cup lenses with the RIFT adjusted as far out as it goes.

The RIFT is not designed to wear glasses under the hood with the A cups.... clearly. I also have a small nose and very small glasses. So if it doesn't fit my face, it won't fit most people's.

Besides, adding lenses to the RIFT is much more comfortable than wearing the RIFT over glasses. And it's generally clearer because the lenses once installed are centered perfectly assuming you install them well.