Need advice on my DIY FPV HMD project
Posted: Mon Apr 15, 2013 9:35 am
One of the first things I wanted to do with the rift when after I heard about it was fly FPV aircrafts. However, I was very disappointed when I found out that this was not possible with the rift, at least not without modifications and pretty costly signal adapters. (If you want to read about it, see http://www.mtbs3d.com/phpBB/viewtopic.php?f=140&t=16366 )
Therefore I looked into making a DIY HMD made specifically for immersive FPV flying. And by immersive I mainly mean higher FOV than the usual Fatshark goggles etc. They just look like a big screen in front of you, nothing like the experience the rift offers.
After some research, this is what I'm thinking:
Two of these screens, one for each eye: http://www.aliexpress.com/item/NEW-High ... 60928.html
It's a pretty goofy screen, and not exactly the lightest, but a single screen like the rift uses is too much trouble, one would need software to modify the video into SBS images etc. etc.
Pros for the screen I linked:
1) Extremely cheap,
2) Perfect size (Distance between the centers of the two screens next to each other are almost exactly 65mm, a normal IPD),
3) Decent specs (640*480 per eye is pretty much the highest an FPV pilot will need), and
4) it takes direct RCA input which is what the video receiver uses. The only thing I regret is that it could be lighter and less bulky.
I haven't decided on lenses yet. Does anyone have any ideas? At first I was thinking these: http://www.ebay.com/itm/251148139033
But they are pretty expensive.. With international shipping they cost almost as much as the screens. Are fresnel lenses better, maybe? The image quality doesn't need to be perfect, it's not like FPV video is super HD..
I guess foamcore and skigoggles should work as a housing.
Then I was thinking splitting the image from the video receiver to both screens using a simple RCA splitter adapter.
Total cost is only around $120.
Would this work? Would you guys change anything?
Therefore I looked into making a DIY HMD made specifically for immersive FPV flying. And by immersive I mainly mean higher FOV than the usual Fatshark goggles etc. They just look like a big screen in front of you, nothing like the experience the rift offers.
After some research, this is what I'm thinking:
Two of these screens, one for each eye: http://www.aliexpress.com/item/NEW-High ... 60928.html
It's a pretty goofy screen, and not exactly the lightest, but a single screen like the rift uses is too much trouble, one would need software to modify the video into SBS images etc. etc.
Pros for the screen I linked:
1) Extremely cheap,
2) Perfect size (Distance between the centers of the two screens next to each other are almost exactly 65mm, a normal IPD),
3) Decent specs (640*480 per eye is pretty much the highest an FPV pilot will need), and
4) it takes direct RCA input which is what the video receiver uses. The only thing I regret is that it could be lighter and less bulky.
I haven't decided on lenses yet. Does anyone have any ideas? At first I was thinking these: http://www.ebay.com/itm/251148139033
But they are pretty expensive.. With international shipping they cost almost as much as the screens. Are fresnel lenses better, maybe? The image quality doesn't need to be perfect, it's not like FPV video is super HD..
I guess foamcore and skigoggles should work as a housing.
Then I was thinking splitting the image from the video receiver to both screens using a simple RCA splitter adapter.
Total cost is only around $120.
Would this work? Would you guys change anything?