Mini Projector 1080P HD Projector Wireless TV Home Theater Portable Smart Projector

So effective can the UST approach be that it’s possible to get 100-inch images from projectors placed just inches from a wall or screen.

Note that you can get short (rather than ultra short) throw projectors that resemble more traditional projector designs, with front-firing lenses. These still need at least a few feet of throw distance to achieve large images, though, so they should not be considered as belonging to the same class as UST projectors

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