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Turn Your 15" Monitor Into 30 Cheap

John Reder writes "Here is a way to get the most out of your PC's monitor for a few bucks. This link will take you to a page that will show you how to build a Fresnel Lens Box with common easy to find items. A Fresnel Lens Box will double the size of your screen making playing things like 3D first person shooters more enjoyable!" Lots cheaper than a new monitor. Wonder what the image quality is like tho. An amusing hack if nothing else.

2 of 142 comments (clear)

  1. Re:... by PD · · Score: 5

    Actually, what you propose would actually work.

    If you can get the sun in between the lens and the sidewalk, then I can believe that the pavement would indeed liquify. A millisecond later the pavement would vaporize. Just after that, the compounds would break apart into their constituent atoms. And then right after that, the hydrogens that used to be in the pavement would fuse into helium.

    It would be much safer to put the fresnel lens in between the sun and the pavement, in my opinion.

  2. Some tips... by Anonymous Coward · · Score: 5

    Site is /.'ed, so this might be redundant...

    I've actually done this before (a long time ago). A mirror, a lens, a box, and an old monitor and voila! But it's not as K-RAD as you might expect.

    You lose A LOT of brightness from the expansion (imagine the brightness of a 14"er spread over a 6'x6' square!), from lens impurities (it's plasitc for christs-sake!), and from 'leakage'. This last one will KILL this project. If you try this, make SURE you enclose the box and paint it with matte black paint on the inside. Turn the brightness on your monitor up FULL-BLAST (BEWARE: I'm convinced this is what killed 1024x768 on my 14" throw-away). Also, close all your windows and shut off all the lights. Ambient light will force your pupils open and you won't be able to see the screen clearly.

    The lens was $3 (!) at the local surplus store. My brother tells me it can double as an asphalt melter, but I've never tried. :) A 12"x14" mirror was only a few bucks, too.

    I use this setup to have a CTHUGA box (486 w/ DOS, no flames, please) playing constantly in my living room. It's a very entertaining thing for me and my friends when it's all fired up, and with a program like Cthugha, the slight blurring kinda works to it's advantage. (if you've never seen/heard of Cthugha, you've missed the coolest thing I've even seen on a computer: http://www.afn.org/~cthugha )

    Not exactly perfect for games, but definitely a fun geek project for a weekend. If anyone has any questions, don't hesistate to email me.

    Bart "We don't need no stinkin' accounts" Grantham
    grant_b@cs.odu.edu


    PS - Add MAME to the mix and rock on out with some Ms PacMan. Don't deny that is what computers are for!