What size lens should I get for my projector?
I found the following video:
https://www.youtube.com/watch?v=JdJ1gZDb6gM
And I want to make a $100 1280x800 projector. In the comment section in that video he says he used a 120mm fresnel lens for the back (Focusing the 100W LED to the 5.6" LCD) and a 220mm fresnel lens for the front (Focusing the LCD to the wall). I want to make sure that I get the right lens.
Here is the site I am probably going to buy from:
http://www.bhlens.com/fresnel_lens.aspx
I might even post an article that links to their site so I can get the lens for free.
Lastly, I'd like to say that I want it to as small as possible (Hence the reason for getting a not-so-common 5.6" LCD instead of a common 7"). Please help me choose a lens that will allow for the smallest possible space between the LCD, lenses, and light. I will make an Instructable for this later on.
Your link to BHLens showed $3000 lens cost ?!??
Are they joking ?
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That says $3
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Got it "Price: $3.000" is $3.oo
They are an international company .... explains the third digit.
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Nevermind: I found a guide for choosing a lens and found that BHPA120-2 fits very nicely with this 5.6" display.
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