Just big size of a ball pen, this Sony (Light Emitting Diode) LED projector is the smallest LED Projector in the world. It only used 14 LEDs including 4 red, 4 blue and 6 green diodes. Two innovations have been made to this projector to make it smaller.
…three transmissive LCDs serving as display devices and a prism for synthesizing light beams emitted from the three devices are directly coupled together to be a unitary component. Another innovation is that the distance between the LEDs and the display devices are reduced.
If you have