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Ultra-cool – a hand-held LED Projector
After having a few weeks of fun with the powerful BeagleBoard , we have been thinking up all sorts of uses for it. So have TI it seems; to show off the BeagleBoard they have released the new ultra portable DLP Projector. The DLP Pico is handheld and can project an image up to 60 inches in size. Simply connect the Pico to the BeagleBoard and you have yourself a 60 inch multimedia extravaganza. The Pico uses a standard DVI-D interface so could be connected to many other video sources.
DLP technology has been used in consumer technology for some years now. Tiny mirrors are lined up in a matrix on a single chip, and each one of these mirrors controls one pixel of the image. These mirrors can either be reflecting the light source towards the lens or towards a heatsink to display a black pixel. By switching the mirror rapidly between these two positions you can create a greyscale level. Three LEDs (Red, Green & Blue) are used as the light source, and each one is switched on in sequence. This is done fast enough so the viewer’s eyes blend the three projected images together to give a full colour picture.
So what could we use this for...? An ultra-portable open air cinema? An internet-connected projected advertisement?
Let us know your ideas! Email blogs@ml-electronics.co.uk
By Carl
