providing an almost distortion-free picture.
Without deeper knowledge of optics i don´t see a possibility to resemble such a system in a Diy-manner.
When using a (stereo) single lens system you have to come to a compromise, that would be edge-distortion, lower FoV and lower resolution.
The minimum you would like to have here should be 640x480, that limits the display choice to displays 3,5" and above (if you want to keep the price somewhat low, this includes 1000$)
One of the better ones should be the Primeview PD035VX2.
With an active area of 72,0mm x 52.56mm you know that you should look for lenses that aproach these measures.
The display should preferably be even a little larger than the lens itself for better FoV.
Suitable lenses tend do to between from 8 to 20 diopters (2x-5x Magnification) with a focal length of roughly 5cm-10cm.
When using larger Displays, e.g. the 4,8" 1024x600 unit, you will most probably need some sort of prisma in addition to your magnifying lens to shift the two images together.
(Thats where the science starts...
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Eschenbach offers some high quality acrylic lenses that would fit 4,8" or larger displays.
If you want to experiment with lenses i would go with plano-konvex / bi-asperic /aspheric type of lenses. There is almost no way around playing with different kind of lenses to actually see what they can exactly do for you.
I decided to go the monoway (quite similar to palmers mod) since it can provide a more rewarding immersion because i prefer the wide FoV and higher Resolution over the stero3d.
Okta said that one of his most immersive experiences was with a large fresnel very close to his face in front of his monitor. I have just received different sized fresnels and did the similar, very impressive! I watched a gameplay video of an upcoming Sci-Fi Game (Black Prophecy) this way and the feeling of being there in the cockpit was so great (even though my handheld setup did miss some major keys for immersion
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
This is all a big "Afaik" since i just recently started reading and experimenting with such things.
If found the LeepVr.com Page especially useful for better understanding from the basics to the guts of an HMD. Very good!
I think it is next to impossible to diy a wide fov, high resolution stereo 3d headset without some very special tools, deep knowledge of optics and a big wallet for the two micro hd displays. But i wish everyone luck who tries nevertheless!
A very interesting HMD was the discontinued Wide5 by Fakelabs. From the looks of it they we´re using quite large displays, but i could never find any detailed technical documents.
Greetings,
Sin