Overhead Projectors

Posts Tagged ‘screen’

I removed the protection glass from both sides of the projection panel, and then split the ohp’s fresnel and put one side over the lcd. ¡The image is pretty bright!, a lot brighter than my other OHP (Apollo 8800, 250w). The 3M has a triplet lens, so it has GREAT focusing and doesn’t have that bright spot in the middle of the screen that appeared with the Apollo’s simple lens.

Duration : 0:0:30

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Technorati Tags: 3m, 8800, 9200, animation, apollo, beast, beauty, bulb, disney, diy, fresnel, halogen, homemade, lcd, nview, ohp, overhead, Panel, projection, projector, proyector, screen, tft, triplet, videoprojecteur, viewframe

total cost of optics aka modified Overhead Projector through ebay, $68 lcd monitor through ebay $24 total cost $92
(although it DOES need a new HID bulb to make it brighter and better color rendition, that’ll add about $50 to the cost) at current placment the screen is about 10 feet diagnal, once it is moved a foot or so back it will be about 13 foot diagnal

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Technorati Tags: 10, cool, diy, foot, hackaday, projector, screen

I obtained a damaged LCD screen from work, stripped it down leaving just the power supply, VGA controller and lcd panel. I also obtained a standard overhead-projector.

This was just the first test, I plan on getting a brighter bulb for the projector, a white wall to display it on, a table to prop it up on and attach some fans to cool the LCD (projector gets hot!)

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Technorati Tags: display, diy, huge, lcd, project, projector, screen, tft, Video