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Anonymous

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Posted on Friday, December 31, 2004 - 3:54 am:   Edit PostDelete PostView Post/Check IPPrint Post

Is anyone else here still interested in homebrew vr? I am planning on making my own HMD with a 2DOF tracker. The tracker is the easy part, it will be mechanical. I will hack a mouse and use the wheels to measure yaw and pitch. It should theoreticaly work perfectly with most games without the need for extra software.

The HMD will be the harder part. I am not considering using lcd, lcos, or crt because not even the professionals can make a good, low cost hmd using those. Mine will be based on the very good(and very expensive)CAE that you see on the comparision chart. It will take the image for a computer monitor, shrink it with lens, send it through fiber optic cables to the hmd, then with lens magnify by the eyes. If anyone has knowledge of lens or fiber optics please tell me if this will work. Also if anyone has a better idea feel free to share it.

MW
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Anonymous

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Posted on Friday, December 31, 2004 - 4:01 am:   Edit PostDelete PostView Post/Check IPPrint Post

I forgot to say were I found out how the CAE works. The patent can be found at www.uspto.gov the number is 4,743,200 and is labeled "fiber optic coupled helmet mounted display system"

MW
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Anonymous

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Posted on Friday, December 31, 2004 - 10:33 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Wait till you discover how expensive the
neccessary fiber optics are !

Nonetheless, GOOD LUCK
keep us posted.

Anon (writer of many pithy sayings!)
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Anonymous

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Posted on Saturday, January 01, 2005 - 11:30 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Yes, they are very expensive. The plastic fiber optics are cheaper then the glass ones. I think the glass fibers are more for sending data rather than images. Anyway, I found spools of 492ft of 3mm plastic fiber optics selling for $345. I am going to do more research before I even start buying the needed parts.

MW
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BOPrey

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Posted on Sunday, January 02, 2005 - 5:02 am:   Edit PostDelete PostView Post/Check IPPrint Post

Not to put cold water on you MW. How many strands are there in this plastic fiber that you found? You need at least 1M, that's a million, strands to carry an image of 800x600 from it source to the eye. Let me try to put things in perspective. Corning once did two 800x800 10 meter long image guides for a hospital to study the brain's activity due to visual stimulus, it costed the hospital $20 grand.
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Anonymous

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Posted on Sunday, January 02, 2005 - 8:44 pm:   Edit PostDelete PostView Post/Check IPPrint Post

"anyone else here still interested in homebrew vr? I am planning on making my own HMD with a 2DOF tracker"

Hey, you should put together with steve from IISVR.. he also claims to make develop a homebrew HMD;) good luck!
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Anonymous

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Posted on Sunday, January 02, 2005 - 11:13 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I didn't realize this project would be so complicated. I wanted to build my own hmd because I don't have much money. Its probably a better idea to wait for a cheap OLED or Virtual Retinal Display hmd. As for now I will get a vga to ntsc converter and use it with a fresnel and 5"lcd that I already own. I just need something, anything, to use with the new input devices I am inventing.

"Hey, you should put together with steve from IISVR.. he also claims to make develop a homebrew HMD;) good luck!"
Yea, then every year I could promise it will be coming out really soon ;)

MW

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