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 Failed experiment - transparent lenscups 
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Sharp Eyed Eagle!
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Joined: Tue Aug 21, 2012 6:51 am
Posts: 401
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Hi all,

I tried an idea that I had a couple of months back.

If only the Rift had transparent lenscups, the light that comes through might create ambient lighting inside the headset strong enough to compensate for the parts that fall out of the FOV from the device. So I modeled the lenscups, made a 3d print with transparent plastic (both clear and diffuse) and tried it.

Unfortunately, I miscalculated. The light from the LCD isn't strong enough to shine through the lenscup and doesn't reflect against the black plastic inside the headset. In case anybody was wondering. This seems to be a dead-end... unless perhaps the entire headset is made out of transparent plastic.

Oh well. It was a fun experiment.


I have made the 3d print available on for those who want to have their own custom lenscups.

Note: (big caveat) It is an approximation of the Lenscup A measurements. It does fit nicely in the Rift. The parts on top that keep the lens in place are there. The parts that hold the lens on the bottom are not. I'm pretty sure the lens from the original cups will fit, but I can't guarantee it. Contact me if you would like to have the original model-file.

Tue Nov 05, 2013 11:02 am
Diamond Eyed Freakazoid!
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Joined: Thu Oct 18, 2012 3:34 am
Posts: 733
Location: Brighton, UK
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Nice idea! Thanks for sharing the results. I'm pretty sure something along these lines - giving some vague ambient peripheral vision - could really help.

Sometimes I sits and thinks, and sometimes I just sits.

Tue Nov 05, 2013 2:04 pm
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Binocular Vision CONFIRMED!
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Joined: Wed Mar 06, 2013 5:02 pm
Posts: 315
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now coat them in chrome paint for better reflective properties

Tue Nov 05, 2013 5:59 pm
Golden Eyed Wiseman! (or woman!)

Joined: Fri Jun 08, 2012 8:18 pm
Posts: 1329
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Interesting. I think I can see why your results make sense.

Tue Nov 05, 2013 9:23 pm
3D Angel Eyes (Moderator)
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Joined: Sat Apr 12, 2008 8:18 pm
Posts: 11394
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Thanks for trying this. It's good to know.

check my blog -

Tue Nov 05, 2013 11:25 pm
Two Eyed Hopeful
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Joined: Wed Sep 05, 2012 5:04 pm
Posts: 69
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The idea was interesting , maybe with some kind of retroreflective coating it's still possible.

Or how about another approach, something like two cheap mini-oled displays positioned on the inside of the Rift :

Image horse blinders :mrgreen: :


would probably be a nightmare to have them sync with the content displayed on the main Rift screen though.

Wed Nov 06, 2013 5:38 am
One Eyed Hopeful
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Joined: Mon Jul 08, 2013 7:51 am
Posts: 19
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Wouldnt something similar to ambilight suffice?

Thu Jan 02, 2014 3:43 am
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