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Anonymous

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Posted on Tuesday, July 29, 2003 - 4:17 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I'm looking for step by step instructions and part source information.
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Anonymous

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Posted on Tuesday, July 29, 2003 - 7:22 pm:   Edit PostDelete PostView Post/Check IPPrint Post

So is everyone else.
There isnt one.
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nickyj

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Posted on Tuesday, July 29, 2003 - 8:07 pm:   Edit PostDelete PostView Post/Check IPPrint Post

why don't you just nicely ask a manufacturer to disclose all of their confidential information.
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Anonymous

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Posted on Wednesday, July 30, 2003 - 1:38 am:   Edit PostDelete PostView Post/Check IPPrint Post

Step 1: Get up

Step 2: Remove finger from backside

Step 3: DIY
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amigo

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Posted on Wednesday, July 30, 2003 - 3:17 am:   Edit PostDelete PostView Post/Check IPPrint Post

I'm sure alot of other people are wondering that, but the fact is you cannot really do it by buying parts, only by "ruggedizing" and existing one.

Issue here is that no manufacturer will sell you a pair of LCD or LCoS hi-res imagers as an individual and even as a company they will probably only sell a development kit ($$$$$) or require a committment to order a volume following you getting those few samples.

And even if you obtain a few samples, you still need to develop necessary electronics to drive those imagers and do some microcode programming for the interface...

So when do we start? :)
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Dago

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Posted on Wednesday, July 30, 2003 - 11:55 am:   Edit PostDelete PostView Post/Check IPPrint Post

You can use CRT displays.The electronic part is a lot more easy.
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Anonymous

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Posted on Wednesday, July 30, 2003 - 1:39 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Dago: Wearing 2x 21' monitors on your head is just an excelent example how it can work.
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Anonymous

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Posted on Wednesday, July 30, 2003 - 8:53 pm:   Edit PostDelete PostView Post/Check IPPrint Post

no he wants to get 2 5inch lcd, it would be a W I D E helmet but maybe it will work...
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amigo

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Posted on Saturday, August 02, 2003 - 4:36 am:   Edit PostDelete PostView Post/Check IPPrint Post

Problem would be getting to focus those 5" LCDs and directing the light into the eyes. I suppose they would be worn on the side of the HMD or something like that but that would introduce extra weight and un-necessary strain on the neck which is the last thing you want to have.

I thought about putting one into VFX1 but problem is where to find a 5.5" or 6" LCD with wide aspect ratio (dimensions 5.5" x 2.75") to fit into VFX1 and high enough resolution and then what about optics and what not..
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Anonymous

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Posted on Tuesday, August 05, 2003 - 1:11 am:   Edit PostDelete PostView Post/Check IPPrint Post

http://www.hkimd.com/en/wearable/index.html

Poor resolution however.
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Anonymous

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Posted on Tuesday, August 05, 2003 - 5:18 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I dont see how you can build one that will be cost effective. When you can buy the I-glasses SVGA 3D for 625.00.
I can understand if you're willing to trade price to develop an HMD with a wider FOV but you're probably looking at atleast 1000.00 in parts alone. And that would probably be with low resolution displays.
Personally I would sacrifice resolution for FOV. You need an optics guy who knows what he is doing. Then I think you have a chance.

Just my thoughts.
-Kevin
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Anonymous

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Posted on Tuesday, August 05, 2003 - 5:44 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Nice high resolution kit including all the electronics. You need only the optics and helmet design. No idea on price though.

http://www.crlopto.com/products/pdfs/SXGA-R2-H2_03%20Datasheet.pdf
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amigo

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Posted on Wednesday, August 06, 2003 - 12:50 am:   Edit PostDelete PostView Post/Check IPPrint Post

Pipe dream on that crlopto.com, like with most places they will not sell less than 1000 units probably and these are latest tech displays, I'd look for something older...like:

Epson
P07SG210 (800x600 0.7")
P09XG210 (1024x768 0.9")
P09XG250 (1024x768 0.9")

...anyone has a supplier? (solar-technologies.com seems to have those but they won't sell to individuals or less than volume orders)
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Anonymous

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Posted on Wednesday, August 06, 2003 - 4:43 pm:   Edit PostDelete PostView Post/Check IPPrint Post

I disagree, but I'll let you know what I find out. I believe the time for consumers being able to build their own HMD's is coming near.
I was also pleased to find that there are more and more high resolution microdisplays on the market now (ie, 1024 x 768).
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Anonymous

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Posted on Friday, August 08, 2003 - 1:10 pm:   Edit PostDelete PostView Post/Check IPPrint Post

If there is someone out there capable of building (or rebuilding an old) stereoscopic HMD, he/she could make a lot of money selling it on this forum and other places. Just a tip. Anyway, is it possible to replace the microdisplays in, for intstance, the i-glasses or the VFX? And is it possible to put a simpe magnifying glass in front of the i-glasses microdisplays/mirrors?
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Anonymous

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Posted on Friday, August 08, 2003 - 4:42 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Well they do sell single quantities but at a price of about 10,000.00

http://www.crlopto.com/products/pdfs/SXGA-R2-H2_03%20Datasheet.pdf
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amigo

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Posted on Saturday, August 09, 2003 - 3:45 pm:   Edit PostDelete PostView Post/Check IPPrint Post

1st Anonymous, Yes, please let us know if you find a source of microdisplays. I think alot of us here would invest into a pair, which could add up to a decent volume purchase and lower the price.

2nd Anonymous, Re: rebuilding old HMD;
Here's Kevin's page, who has put i-glasses into VFX1: http://www.geocities.com/mellott124/VFX2.htm and they seem to work well...
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Anonymous

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Posted on Monday, August 11, 2003 - 3:12 am:   Edit PostDelete PostView Post/Check IPPrint Post

http://www.tmdc.com.tw/images/tmdc%20XGV0901specificationDM.pdf

Two 1024x768 with drivers boards for VGA input. 4000.00 quoted from manufacturer. They will sell individual quanties. However this product line will discontinue shortly.

They have a WXVGA 1280x768, same price but with DVI input. This product line will continue on.

1280x768 HMD for 4000.00, not bad. If you can come up with the optics. I'd use a VFX1 for a shell.

Kevin
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amigo

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Posted on Monday, August 11, 2003 - 1:19 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Kevin,

those look like imagers for digital projectors, it being reflective and from the spec.file they show a configuration with 3 (R/G/B) so perhaps those imagers are grey scale (8bit) instead of full colour (24bit).

I think we need something older, like the VFX1 imagers which are pass-through, back lit. Something like that would be more preferable (cheaper) and probably easier to do circuits for.
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Anonymous

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Posted on Monday, August 11, 2003 - 5:47 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Good quality microdisplays!
I have no idea about the price.

http://www.microdisplay.com
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Anonymous

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Posted on Thursday, August 21, 2003 - 9:14 pm:   Edit PostDelete PostView Post/Check IPPrint Post

You could probably use two 3" lcd TVs.
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amigo

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Posted on Saturday, August 23, 2003 - 1:47 pm:   Edit PostDelete PostView Post/Check IPPrint Post

With 3" TV LCDs it could prove difficult to build proper optics support that would give a good image so close to the eyes and the resolution of the TV LCDs is not high (at least the ones I've seen around are all low-res)
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Anonymous

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Posted on Monday, March 01, 2004 - 6:40 am:   Edit PostDelete PostView Post/Check IPPrint Post

If 3" TV LCD's could be used, wouldn't you get a higher resolution if you used some sort of optics that demagnifies it and at the same time increasing the resolution?? Excuse my ignorance, as I'm new to the whole VR thing...but been researching alot lately.
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steve

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Posted on Monday, March 01, 2004 - 4:41 pm:   Edit PostDelete PostView Post/Check IPPrint Post

The microdisplays would have full color (24 bit). The microdisplay is monochrome, but it take a field-sequential light, and reflects back red,green,blue sequentially, (at 180hz) and because of such a high refresh rate, the colors will be blended and effectively you will have 60hz color video.

Steve
NVIS Inc.
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Anonymous

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Posted on Wednesday, March 03, 2004 - 9:21 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Hey Kevin M, that link on the i-glasses into the VFX is bad. Any chance of a new link that works?

I hadn't heard anything on that project of yours and was wondering if it's worthwhile? More FOV? Better res (outside of your linkbox of course).

The old link is:

www.geocities.com/mellott124/VFX2.htm

Tks!
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Anonymous

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Posted on Thursday, March 04, 2004 - 1:51 am:   Edit PostDelete PostView Post/Check IPPrint Post

The link is not bad. Try it again. Sometimes I get too many visitors and geocities shuts down my site for an hour. Its because it is a free site.

-Kevin
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Anonymous

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Posted on Wednesday, November 03, 2004 - 5:07 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Fresh products from IMD

WEARABLE DISPLAY KIT

The WD-640, WD-800 and WD-1280 wearable display kits accept analog VGA signal from a computer or video signal from a DVD player, and produces 85Hz flicker-free color image on the microdisplay. Binocular and stereoscopic features are available. The WD-640 monocular kit consumes 1.5W, while the WD-640 binocular kit consumes 1.9W.

PROJECTOR KIT

The PRO-800 mini-projector kit and PRO-1280 HDTV-projector kit employ iMD's patented single-panel projector architecture, which greatly simplifies the projector optics. The kit accepts both VGA and S-video signals, and projects images on the microdisplay through a matching projection lens with 120Hz frame rate. IMD's proprietary color management optics and electronics are employed for excellent color.

PORTABLE FRAME

The PF-640 and PF-1280 portable frames read images from memory cards and display them on the microdisplay. USB interface is built in for download or upload of images from a PC. User can select, scroll and zoom in or out the images through user interface. The PF-640 can provide 24-bit color and the PF-1280 can provide up to 30-bit color.


http://www.hkimd.com/wearable/index.html

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