http://hackaday.com/2012/11/14/demystifying-camcorder-crt-viewfinders/

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Nov 14, 2012, 4:40:28 PM11/14/12
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   http://hackaday.com/2012/11/14/demystifying-camcorder-crt-viewfinders/

 just seen this on hackaday which gave me a idea for making my own  video goggles for FPV ,  wondering if anyone wants to help design some or   can give me a reason why thats a bad idea ?        i know i can get some goggles from china for about 80$  but i see camcorders in goodwill for way less then that ,  

   sounds kinda trivial to me ,   two crt viewfinders connected to video output of receiver  mounted in some kinda headgear 

Joe I.

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Nov 14, 2012, 5:21:54 PM11/14/12
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I can tell you from experience helping someone hack together some video goggles out of a pair of small CRTs that your eyes can't properly focus on a screen that close unaided.  I tried, and man it will give you a headache real quick.  The commercial goggles have a pair of lenses in them which correct this.

With that said, I agree that they are the only non-trivial part of the setup.  If you were to figure out the necessary specs on such a pair of lenses and where to acquire them, then I think you'd be good to go.  Said friend and I keep talking about coming to a LVL1 Tuesday meeting, if you're interested in seeing what he did maybe that'll be enough to get us off our duffs and over to the space.

 -- Joe I.

#

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Nov 14, 2012, 6:06:37 PM11/14/12
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 TY , you answered one of the main concerns i had with the idea ,  eye focusing an it causing headaches ,.
      ive noticed the lens in front of commercial goggles ,   although ive  never had a set to play with an look at with digi calipers an stuff ,      i wonder if you could use plexiglass  and sand / polish it into a lens , 
        
    one thing that makes this mailing list so cool is the fact it puts you in touch with others that have tried an failed or had success making/hacking projects like this ,,    way cool you have tried this allready  id love to see your experiment , sounds cool !      
 
        i wanna say yeah man bring it down an come to a meeting  that would be cool ,,  just hard for me to say ill be there also , either way i bet there is others there that would also enjoy seeing it !    dont count me out though if you come i maybe able to make it too  :) 

2600

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Nov 16, 2012, 12:03:17 AM11/16/12
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Umm, if you can salvage the viewfinder's optics from the camcorder,
that should work. Makes the viewfinder image manageable in that
context.

73


On Nov 14, 6:06 pm, "#" <jasonpittman...@gmail.com> wrote:
>  TY , you answered one of the main concerns i had with the idea ,  eye
> focusing an it causing headaches ,.
>       ive noticed the lens in front of commercial goggles ,   although ive
> never had a set to play with an look at with digi calipers an stuff ,
> i wonder if you could use plexiglass  and sand / polish it into a lens ,
>
>     one thing that makes this mailing list so cool is the fact it puts you
> in touch with others that have tried an failed or had success
> making/hacking projects like this ,,    way cool you have tried this
> allready  id love to see your experiment , sounds cool !
>
>         i wanna say yeah man bring it down an come to a meeting  that would
> be cool ,,  just hard for me to say ill be there also , either way i bet
> there is others there that would also enjoy seeing it !    dont count me
> out though if you come i maybe able to make it too  :)On Wed, Nov 14, 2012 at 5:21 PM, Joe I. <j...@ibershoff.com> wrote:
> > I can tell you from experience helping someone hack together some video
> > goggles out of a pair of small CRTs that your eyes can't properly focus on
> > a screen that close unaided.  I tried, and man it will give you a headache
> > real quick.  The commercial goggles have a pair of lenses in them which
> > correct this.
>
> > With that said, I agree that they are the only non-trivial part of the
> > setup.  If you were to figure out the necessary specs on such a pair of
> > lenses and where to acquire them, then I think you'd be good to go.  Said
> > friend and I keep talking about coming to a LVL1 Tuesday meeting, if you're
> > interested in seeing what he did maybe that'll be enough to get us off our
> > duffs and over to the space.
>
> >  -- Joe I.
>
> > On Wednesday, November 14, 2012 4:40:31 PM UTC-5, eeee wrote:
>
> >>    http://hackaday.com/2012/11/**14/demystifying-camcorder-crt-**
> >> viewfinders/<http://hackaday.com/2012/11/14/demystifying-camcorder-crt-viewfinders/>
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