A simple and afordable DIY projector using a LCD, a LED and a few lenses
Here are some video of the results. Is important to remark that the video quality affects the real visibility of the results, however the light is most focused in the center and the corners are darker, but is very acceptable to see movies and series. The quality decreases when the scene show open planes, for example in a tenis game he ball becomes almost invisible.
First I want to show the basic scheme of the projector. Including the main parts and some dimmensions.
To prepare the LED you should paste its back to the heat dissipator. Then make a hole in the back of the box and insert the LED.
The backside mounting is composed by 5 elements: LED with the heatsink, LED Driver, power socket, power switch, and fan. First it's necessary to open the corresponding holes: central hole for the heatsink, downside corner holes for power switch and plug, upper holes for LED driver screws and cables, finally holes for ventilation and support for the fan.