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04-18-2006, 05:46 PM
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#76
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Constant Bitrate
Join Date: Feb 2005
Location: Boston,MA
Posts: 204
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Now the big question! where do we get a completely clear polarized film??? 
__________________
Will never be DONE! There is always something to add
VIA EPIA SP13000,1GB DDR,80Gb 2.5” SATA HDD,8" Xenarc LCD with t/s,Linksys Bluetooth,Logitech wireless trackball,OBDII,RearView wide angle cam,XM radio,2 Wifi external antennas, Frodo,Navivoice
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04-18-2006, 06:40 PM
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#77
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Raw Wave
Join Date: Apr 2005
Location: Boston, MA
Posts: 1,800
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One problem I see for some people (like myself) with just putting film on the window is the shape of the windshield. Mine curves quite a bit and would cause a lot of distortion.
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04-18-2006, 06:48 PM
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#78
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Low Bitrate
Join Date: Sep 2005
Posts: 72
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http://www.edmundoptics.com/onlineca...=2035&search=1
If a beamsplitter is used "backwards" it should combine the two images, resulting in a HUD that is transparent, yet reflective
now looking for a coating for those of us with a (relatively) flat windshield
Last edited by alpha_maverick; 04-18-2006 at 07:01 PM..
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04-18-2006, 07:21 PM
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#79
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FLAC
Join Date: Jul 2001
Posts: 1,109
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Quote: Originally Posted by shotgunefx
One problem I see for some people (like myself) with just putting film on the window is the shape of the windshield. Mine curves quite a bit and would cause a lot of distortion.
Ever seen a Corvette windshield? They're ridiculously curved.
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04-18-2006, 07:23 PM
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#80
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Low Bitrate
Join Date: Sep 2005
Posts: 72
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curve can be compensated for with a cylindrical lens/mirror
edit: still looking for coatings
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04-18-2006, 08:16 PM
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#81
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Raw Wave
Join Date: Apr 2005
Location: Boston, MA
Posts: 1,800
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No doubt that it could be compensated for, but I'm willing to bet that the cost and practicalliy would be prohibitive.
Not familar with the Corvette's setup, but with character based LCDs, distortion isn't that big of an issue. If you use individual segments, would be pretty easy to place them such they account for the distortion somewhat.
With a graphical hud, it's going to be very noticable. Designing an optic to account for the windshield shape at a given distance I would imagine would be tough by itself. Then you have to have someone actually produce it, at one off costs, sure it would be expensive.
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04-18-2006, 08:22 PM
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#83
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FLAC
Join Date: Feb 2006
Location: London, UK
Posts: 1,280
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this is getting very exciting guys. keep up the good work 
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04-18-2006, 10:12 PM
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#84
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Low Bitrate
Join Date: Sep 2005
Posts: 72
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it has a ghost as well. do ya'll think we should just try to minimize the ghost/align the two images?
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04-18-2006, 10:57 PM
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#85
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Constant Bitrate
Join Date: Feb 2005
Location: Boston,MA
Posts: 204
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Quote: Originally Posted by alpha_maverick
it has a ghost as well. do ya'll think we should just try to minimize the ghost/align the two images?
if u use a polarized film on the windshield u have no ghosting and no double image. Unfortunately until now i was not able to find a clear polarized filter in a form of a film. All are kind of dark. I am trying to find the ones used on LCDs...
__________________
Will never be DONE! There is always something to add
VIA EPIA SP13000,1GB DDR,80Gb 2.5” SATA HDD,8" Xenarc LCD with t/s,Linksys Bluetooth,Logitech wireless trackball,OBDII,RearView wide angle cam,XM radio,2 Wifi external antennas, Frodo,Navivoice
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04-18-2006, 11:28 PM
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#86
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Raw Wave
Join Date: Apr 2005
Location: Boston, MA
Posts: 1,800
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How about this?
Polarizer Experimenters Kit
Small but cheap and good for testing.
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04-18-2006, 11:32 PM
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#87
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Raw Wave
Join Date: Apr 2005
Location: Boston, MA
Posts: 1,800
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Another
http://polarization.com/shop/catalog/index.html
Quote:
Polarizing Film
Linear polarizer film by the foot:
$0.07 per square inch
Great for building large polariscopes to detect residual stress in glass and plastics!
NEW!:
Linear polarizer for LCDs with anti-glare and hard coat
Super-high-contrast polarizer
Also:
New Lower prices for
Film with adhesive
Great for repairing LCDs (liquid crystal displays)!
Circular Polarizing film
Left and Right handedness!
Both thanks to the website of linear1 of bit-tech.net
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04-18-2006, 11:34 PM
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#88
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Low Bitrate
Join Date: Sep 2005
Posts: 72
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unfortunately, all polarizing films will be dark(ish) the lighter they are, the less effective at polarizing they will be.
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04-19-2006, 09:45 AM
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#89
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FLAC
Join Date: Feb 2005
Location: Los Angeles
Posts: 1,644
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Quote: Originally Posted by spaceskater
MGD what company makes aftermarket HUD windshields? Wher did u get that?
Here is the link to the manufacturer.
http://www.autobahnpower.com/product...ar+Windshields
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04-19-2006, 05:23 PM
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#90
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Low Bitrate
Join Date: Jan 2006
Location: Germany
Posts: 69
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Siemens-VDO integrated HUDs into the new BMWs....
Just thought to post in addition to the Corvette HUDs...
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